Merge pull request #373 from adafruit/add-issue-template

add issue template

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,95 @@
+name: Bug Report
+description: Report a problem
+labels: 'Bug'
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+        It's okay to leave some blank if it doesn't apply to your problem.
+
+  - type: dropdown
+    attributes:
+      label: Operating System
+      options:
+              - Linux
+              - MacOS
+              - RaspberryPi OS
+              - Windows 7
+              - Windows 10
+              - Windows 11
+              - Others
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Arduino IDE version
+      placeholder: e.g Arduino 1.8.15
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Board
+      placeholder: e.g Metro M4 Express
+    validations:
+      required: true
+      
+  - type: input
+    attributes:
+      label: ArduinoCore version
+      description: Can be found under "Board Manager" menu
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Sketch as ATTACHED TXT
+      placeholder: |
+        e.g examples/MassStorage/msc_ramdisk.
+        If it is custom sketch, please provide it as **ATTACHED** files or link to it.
+        Pasting raw long code that hurts readability can get your issue **closed**
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Compiled Log as ATTACHED TXT
+      placeholder: |
+        Compiled log from Arduino IDE as **ATTACHED** txt.
+        Pasting raw long log that hurts readability can get your issue **closed**
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: What happened ?
+      placeholder: A clear and concise description of what the bug is.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: How to reproduce ?
+      placeholder: |
+        1. Go to '...'
+        2. Click on '....'
+        3. See error      
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Debug Log as ATTACHED TXT
+      placeholder: |
+        Debug log where the issue occurred as attached txt file, best with comments to explain the actual events.
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Screenshots
+      description: If applicable, add screenshots to help explain your problem.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Adafruit Support Forum
+    url: https://forums.adafruit.com
+    about: If you have other questions or need help, post it here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: Feature
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/githubci.yml

@@ -9,29 +9,25 @@ jobs:
       matrix:
         board:
           # Alphabetical order
-          - 'metro_m0'
-          - 'hallowing'
           - 'circuitplayground_m0'
+          - 'feather_m4_can'
+          - 'hallowing'
+          - 'hallowing_m4'
+          - 'metro_m0'
           - 'metro_m4'
           - 'pybadge_m4'
           - 'pygamer_m4'
-          - 'hallowing_m4'
           - 'pyportal_m4'
           - 'pyportal_m4_titano'
-          - 'feather_m4_can'
+          # with TinyUSB
           - 'metro_m0:usbstack=tinyusb'
           - 'metro_m4:speed=120,usbstack=tinyusb'
 
     runs-on: ubuntu-latest
     
     steps:
-    - name: Setup Python
-      uses: actions/setup-python@v1
-      with:
-        python-version: '3.x'
-        
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: 'true'
 
@@ -62,4 +58,4 @@ jobs:
         arduino-cli lib install "Adafruit NeoPixel" "Adafruit seesaw Library" "Adafruit SPIFlash" "FlashStorage" "MIDI Library" "SD" "SdFat - Adafruit Fork"
 
     - name: Build examples
-      run: python3 extras/build_all.py ${{ matrix.board }}
+      run: python3 tools/build_all.py ${{ matrix.board }}

cores/arduino/SERCOM.cpp

@@ -556,29 +556,35 @@ bool SERCOM::startTransmissionWIRE(uint8_t address, SercomWireReadWriteFlag flag
   // Address Transmitted
   if ( flag == WIRE_WRITE_FLAG ) // Write mode
   {
-    while( !sercom->I2CM.INTFLAG.bit.MB )
-    {
+    while( !sercom->I2CM.INTFLAG.bit.MB ) {
       // Wait transmission complete
+
+      // If certain errors occur, the MB bit may never be set (RFTM: SAMD21 sec:28.10.6; SAMD51 sec:36.10.7).
+      // The data transfer errors that can occur (including BUSERR) are all
+      // rolled up into INTFLAG.bit.ERROR from STATUS.reg
+      if (sercom->I2CM.INTFLAG.bit.ERROR) {
+        return false;
+      }
     }
   }
   else  // Read mode
   {
-    while( !sercom->I2CM.INTFLAG.bit.SB )
-    {
+    while( !sercom->I2CM.INTFLAG.bit.SB ) {
+      // Wait transmission complete
+
       // If the slave NACKS the address, the MB bit will be set.
+      // A variety of errors in the STATUS register can set the ERROR bit in the INTFLAG register
       // In that case, send a stop condition and return false.
-        if (sercom->I2CM.INTFLAG.bit.MB) {
+      if (sercom->I2CM.INTFLAG.bit.MB || sercom->I2CM.INTFLAG.bit.ERROR) {
         sercom->I2CM.CTRLB.bit.CMD = 3; // Stop condition
         return false;
       }
-      // Wait transmission complete
     }
 
     // Clean the 'Slave on Bus' flag, for further usage.
     //sercom->I2CM.INTFLAG.bit.SB = 0x1ul;
   }
 
-
   //ACK received (0: ACK, 1: NACK)
   if(sercom->I2CM.STATUS.bit.RXNACK)
   {
@@ -597,10 +603,11 @@ bool SERCOM::sendDataMasterWIRE(uint8_t data)
 
   //Wait transmission successful
   while(!sercom->I2CM.INTFLAG.bit.MB) {
-
-    // If a bus error occurs, the MB bit may never be set.
-    // Check the bus error bit and bail if it's set.
-    if (sercom->I2CM.STATUS.bit.BUSERR) {
+    // If a data transfer error occurs, the MB bit may never be set.
+    // Check the error bit and bail if it's set.
+    // The data transfer errors that can occur (including BUSERR) are all
+    // rolled up into INTFLAG.bit.ERROR from STATUS.reg
+    if (sercom->I2CM.INTFLAG.bit.ERROR) {
       return false;
     }
   }
@@ -701,9 +708,17 @@ uint8_t SERCOM::readDataWIRE( void )
 {
   if(isMasterWIRE())
   {
-    while( sercom->I2CM.INTFLAG.bit.SB == 0 )
-    {
+    while (sercom->I2CM.INTFLAG.bit.SB == 0) {
       // Waiting complete receive
+      // A variety of errors in the STATUS register can set the ERROR bit in the INTFLAG register
+      // In that case, send a stop condition and return false.
+      // readDataWIRE should really be able to indicate an error (which would never be used
+      // because the readDataWIRE callers (in Wire.cpp) should have checked availableWIRE() first and timed it
+      // out if the data never showed up
+      if (sercom->I2CM.INTFLAG.bit.MB || sercom->I2CM.INTFLAG.bit.ERROR) {
+        sercom->I2CM.CTRLB.bit.CMD = 3; // Stop condition
+        return 0xFF;
+      }
     }
 
     return sercom->I2CM.DATA.bit.DATA ;

cores/arduino/USB/USBAPI.h

@@ -85,7 +85,7 @@ public:
 	uint32_t sendControl(int /* ep */, const void *data, uint32_t len) { return sendControl(data, len); }
 	uint32_t recvControl(void *data, uint32_t len);
 	uint32_t sendConfiguration(uint32_t maxlen);
-	bool sendStringDescriptor(const uint8_t *string, uint8_t maxlen);
+	bool sendStringDescriptor(const uint8_t *string, uint32_t maxlen);
 	void initControl(int end);
 	uint8_t SendInterfaces(uint32_t* total);
 	void packMessages(bool val);

cores/arduino/USB/USBCore.cpp

@@ -110,12 +110,12 @@ static EPHandler *epHandlers[7] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL};
 // Send a USB descriptor string. The string is stored as a
 // plain ASCII string but is sent out as UTF-16 with the
 // correct 2-byte prefix
-bool USBDeviceClass::sendStringDescriptor(const uint8_t *string, uint8_t maxlen)
+bool USBDeviceClass::sendStringDescriptor(const uint8_t *string, uint32_t maxlen)
 {
 	if (maxlen < 2)
 		return false;
 
-	uint8_t buffer[maxlen];
+	uint8_t* buffer = (uint8_t*)malloc(maxlen);
 	buffer[0] = strlen((const char*)string) * 2 + 2;
 	buffer[1] = 0x03;
 
@@ -126,7 +126,9 @@ bool USBDeviceClass::sendStringDescriptor(const uint8_t *string, uint8_t maxlen)
 		buffer[i] = 0;
 	}
 
-	return USBDevice.sendControl(buffer, i);
+	bool ret = USBDevice.sendControl(buffer, i);
+	free(buffer);
+	return ret;
 }
 
 bool _dry_run = false;

cores/arduino/WVariant.h

@@ -136,7 +136,7 @@ typedef enum _ETCChannel
   TC7_CH1 =  (12<<8)|(1),
 } ETCChannel ;
 
-#elif defined(__SAMD51P19A__) || defined(__SAMD51P20A__)
+#elif defined(__SAME53N20A__) || defined(__SAME53N19A__) || defined(__SAME54P20A__) || defined(__SAME54P19A__) || defined(__SAME54N20A__) || defined(__SAME54N19A__) || defined(__SAMD51P20A__) || defined(__SAMD51P19A__) || defined(__SAMD51N20A__) || defined(__SAMD51N19A__) || defined(__SAME51N20A__) || defined(__SAME51N19A__)
 
 typedef enum _ETCChannel
 {

cores/arduino/cortex_handlers.c

@@ -133,6 +133,7 @@ void USB_0_Handler               ( void ) __attribute__ ((weak));
 void USB_1_Handler               ( void ) __attribute__ ((weak));
 void USB_2_Handler               ( void ) __attribute__ ((weak));
 void USB_3_Handler               ( void ) __attribute__ ((weak));
+void GMAC_Handler                ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
 void TCC0_0_Handler              ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
 void TCC0_1_Handler              ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
 void TCC0_2_Handler              ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
@@ -195,6 +196,7 @@ extern uint32_t __bss_end__;
 extern uint32_t __StackTop;
 
 /* Exception Table */
+__attribute__ ((used))
 __attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =
 {
 	/* Configure Initial Stack Pointer, using linker-generated symbols */
@@ -302,7 +304,7 @@ __attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =
 	  (void*) USB_1_Handler,                 /* 81 Universal Serial Bus IRQ 1 */
 	  (void*) USB_2_Handler,                 /* 82 Universal Serial Bus IRQ 2 */
 	  (void*) USB_3_Handler,                 /* 83 Universal Serial Bus IRQ 3 */
-	  (void*) (0UL),
+	  (void*) GMAC_Handler,					 /* 84 Ethernet MAC */
 	  (void*) TCC0_0_Handler,                /* 85 Timer Counter Control 0 IRQ 0 */
 	  (void*) TCC0_1_Handler,                /* 86 Timer Counter Control 0 IRQ 1 */
 	  (void*) TCC0_2_Handler,                /* 87 Timer Counter Control 0 IRQ 2 */
@@ -406,6 +408,7 @@ extern uint32_t __bss_end__;
 extern uint32_t __StackTop;
 
 /* Exception Table */
+__attribute__ ((used))
 __attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =
 {
   /* Configure Initial Stack Pointer, using linker-generated symbols */

cores/arduino/startup.c

@@ -63,7 +63,7 @@ void SystemInit( void )
    * 1) Enable XOSC32K clock (External on-board 32.768Hz oscillator)
    */
   
-  OSC32KCTRL->XOSC32K.reg = OSC32KCTRL_XOSC32K_ENABLE | OSC32KCTRL_XOSC32K_EN32K | OSC32KCTRL_XOSC32K_EN32K | OSC32KCTRL_XOSC32K_CGM_XT | OSC32KCTRL_XOSC32K_XTALEN;
+  OSC32KCTRL->XOSC32K.reg = OSC32KCTRL_XOSC32K_ENABLE | OSC32KCTRL_XOSC32K_EN1K | OSC32KCTRL_XOSC32K_EN32K | OSC32KCTRL_XOSC32K_CGM_XT | OSC32KCTRL_XOSC32K_XTALEN;
   
   while( (OSC32KCTRL->STATUS.reg & OSC32KCTRL_STATUS_XOSC32KRDY) == 0 ){
     /* Wait for oscillator to be ready */

extras/makeboards.py

@@ -1,294 +0,0 @@
-#!/usr/bin/env python3
-
-print('''# Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the GNU Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-''')
-
-mcu_dict = {
-    'SAMD21': {
-        'flash_size': 262144,
-        'data_size': 0,
-        'offset': '0x2000',
-        'build_mcu': 'cortex-m0plus',
-        'f_cpu': '48000000L',
-        'extra_flags': '-DARDUINO_SAMD_ZERO -DARM_MATH_CM0PLUS'
-    },
-    
-    'SAMD51': {
-        'flash_size': 507904, # SAMD51P20A and SAMD51J20A has 1032192
-        'data_size': 0,
-        'offset': '0x4000',
-        'build_mcu': 'cortex-m4',
-        'f_cpu': '120000000L',
-        'extra_flags': '-D__SAMD51__ -D__FPU_PRESENT -DARM_MATH_CM4 -mfloat-abi=hard -mfpu=fpv4-sp-d16'
-    },
-    
-    'SAME51': {
-        'flash_size': 507904,
-        'data_size': 0,
-        'offset': '0x4000',
-        'build_mcu': 'cortex-m4',
-        'f_cpu': '120000000L',
-        'extra_flags': '-D__SAMD51__ -D__FPU_PRESENT -DARM_MATH_CM4 -mfloat-abi=hard -mfpu=fpv4-sp-d16'
-    },                    
-}
-
-
-def build_header(mcu, name, vendor, product, vid, pid_list):
-    prettyname = vendor + " " + product + " ({})".format(mcu)
-    print()
-    print("# -----------------------------------")
-    print("# {}".format(prettyname))
-    print("# -----------------------------------")
-    print("{}.name={}".format(name, prettyname))
-    print()
-
-    print("# VID/PID for Bootloader, Arduino & CircuitPython")
-    for i in range(len(pid_list)):
-        print("{}.vid.{}={}".format(name, i, vid))
-        print("{}.pid.{}={}".format(name, i, pid_list[i]))
-    print()
-
-def build_upload(mcu, name, extra_flags):
-    print("# Upload")    
-    print("{}.upload.tool=bossac18".format(name))
-    print("{}.upload.protocol=sam-ba".format(name))
-    
-    if ('SAMD51P20A' in extra_flags) or ('SAMD51J20A' in extra_flags):
-        flash_size = 1032192
-    else:
-        flash_size = mcu_dict[mcu]['flash_size']
-    print("{}.upload.maximum_size={}".format(name, flash_size))
-    #print("{}.upload.maximum_data_size=%d".format((name, mcu_dict[mcu]['data_size']))
-    
-    print("{}.upload.offset={}".format(name, mcu_dict[mcu]['offset']))    
-    print("{}.upload.use_1200bps_touch=true".format(name))
-    print("{}.upload.wait_for_upload_port=true".format(name))
-    print("{}.upload.native_usb=true".format(name))
-    print()
-
-def build_build(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader):
-    print("# Build")
-    print("{}.build.mcu={}".format(name, mcu_dict[mcu]['build_mcu']))
-    print("{}.build.f_cpu={}".format(name, mcu_dict[mcu]['f_cpu']))
-    print('{}.build.usb_product="{}"'.format(name, product))
-    print('{}.build.usb_manufacturer="{}"'.format(name, vendor))    
-    print("{}.build.board={}".format(name, boarddefine))    
-    print("{}.build.core=arduino".format(name))    
-    print("{}.build.extra_flags={} {} {{build.usb_flags}}".format(name, extra_flags, mcu_dict[mcu]['extra_flags']))
-    print("{}.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld".format(name))    
-    print("{}.build.openocdscript=openocd_scripts/{}.cfg".format(name, variant))    
-    print("{}.build.variant={}".format(name, variant))
-    print("{}.build.variant_system_lib=".format(name))    
-    print("{}.build.vid={}".format(name, vid))
-    print("{}.build.pid={}".format(name, pid_list[0]))            
-    print("{}.bootloader.tool=openocd".format(name))
-    print("{}.bootloader.file={}".format(name, bootloader))
-    if (mcu == 'SAMD51' or mcu == 'SAME51'):
-        print('{}.compiler.arm.cmsis.ldflags="-L{{runtime.tools.CMSIS-5.4.0.path}}/CMSIS/Lib/GCC/" "-L{{build.variant.path}}" -larm_cortexM4lf_math -mfloat-abi=hard -mfpu=fpv4-sp-d16'.format(name))
-    print()
-    
-
-def build_menu(mcu, name):
-    print("# Menu")
-    if (mcu == 'SAMD51' or mcu == 'SAME51'):
-        print("{}.menu.cache.on=Enabled".format(name))
-        print("{}.menu.cache.on.build.cache_flags=-DENABLE_CACHE".format(name))
-        print("{}.menu.cache.off=Disabled".format(name))
-        print("{}.menu.cache.off.build.cache_flags=".format(name))
-        
-        print("{}.menu.speed.120=120 MHz (standard)".format(name))
-        print("{}.menu.speed.120.build.f_cpu=120000000L".format(name))
-        print("{}.menu.speed.150=150 MHz (overclock)".format(name))
-        print("{}.menu.speed.150.build.f_cpu=150000000L".format(name))
-        print("{}.menu.speed.180=180 MHz (overclock)".format(name))
-        print("{}.menu.speed.180.build.f_cpu=180000000L".format(name))
-        print("{}.menu.speed.200=200 MHz (overclock)".format(name))
-        print("{}.menu.speed.200.build.f_cpu=200000000L".format(name))
-    
-    print("{}.menu.opt.small=Small (-Os) (standard)".format(name))
-    print("{}.menu.opt.small.build.flags.optimize=-Os".format(name))
-    print("{}.menu.opt.fast=Fast (-O2)".format(name))
-    print("{}.menu.opt.fast.build.flags.optimize=-O2".format(name))
-    print("{}.menu.opt.faster=Faster (-O3)".format(name))
-    print("{}.menu.opt.faster.build.flags.optimize=-O3".format(name))
-    print("{}.menu.opt.fastest=Fastest (-Ofast)".format(name))
-    print("{}.menu.opt.fastest.build.flags.optimize=-Ofast".format(name))
-    print("{}.menu.opt.dragons=Here be dragons (-Ofast -funroll-loops)".format(name))
-    print("{}.menu.opt.dragons.build.flags.optimize=-Ofast -funroll-loops".format(name))
-    
-    if (mcu == 'SAMD51' or mcu == 'SAME51'):
-        print("{}.menu.maxqspi.50=50 MHz (standard)".format(name))
-        print("{}.menu.maxqspi.50.build.flags.maxqspi=-DVARIANT_QSPI_BAUD_DEFAULT=50000000".format(name))
-        print("{}.menu.maxqspi.fcpu=CPU Speed / 2".format(name))
-        print("{}.menu.maxqspi.fcpu.build.flags.maxqspi=-DVARIANT_QSPI_BAUD_DEFAULT=({{build.f_cpu}})".format(name))
-
-    print("{}.menu.usbstack.arduino=Arduino".format(name))
-    print("{}.menu.usbstack.tinyusb=TinyUSB".format(name))
-    print("{}.menu.usbstack.tinyusb.build.flags.usbstack=-DUSE_TINYUSB".format(name))
-
-    print("{}.menu.debug.off=Off".format(name))
-    print("{}.menu.debug.on=On".format(name))
-    print("{}.menu.debug.on.build.flags.debug=-g".format(name))
-    print()
-
-def build_global_menu():
-    print("menu.cache=Cache")
-    print("menu.speed=CPU Speed")
-    print("menu.opt=Optimize")
-    print("menu.maxqspi=Max QSPI")    
-    print("menu.usbstack=USB Stack")
-    print("menu.debug=Debug")
-
-def make_board(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader):
-    build_header(mcu, name, vendor, product, vid, pid_list)
-    build_upload(mcu, name, extra_flags)
-    build_build(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader)    
-    build_menu(mcu, name)
-
-build_global_menu()
-
-######################## SAMD21
-
-make_board("SAMD21", "adafruit_feather_m0", "feather_m0", 
-           "Adafruit", "Feather M0", "0x239A", ["0x800B", "0x000B", "0x0015"],
-           "SAMD_ZERO", "-D__SAMD21G18A__ -DADAFRUIT_FEATHER_M0", "featherM0/bootloader-feather_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_feather_m0_express", "feather_m0_express", 
-           "Adafruit", "Feather M0 Express", "0x239A", ["0x801B", "0x001B"],
-           "SAMD_FEATHER_M0_EXPRESS", "-D__SAMD21G18A__ -DARDUINO_SAMD_FEATHER_M0 -DADAFRUIT_FEATHER_M0_EXPRESS", "featherM0/bootloader-feather_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_metro_m0", "metro_m0", 
-           "Adafruit", "Metro M0 Express", "0x239A", ["0x8013", "0x0013"],
-           "SAMD_ZERO", "-D__SAMD21G18A__ -DADAFRUIT_METRO_M0_EXPRESS", "metroM0/bootloader-metro_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_circuitplayground_m0", "circuitplay", 
-           "Adafruit", "Circuit Playground Express", "0x239A", ["0x8018", "0x0019"],
-           "SAMD_CIRCUITPLAYGROUND_EXPRESS", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_CIRCUITPLAYGROUND_M0", "circuitplayM0/bootloader-circuitplay_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_gemma_m0", "gemma_m0", 
-           "Adafruit", "Gemma M0", "0x239A", ["0x801C", "0x001C"],
-           "GEMMA_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_GEMMA_M0", "gemmaM0/bootloader-gemma_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_trinket_m0", "trinket_m0", 
-           "Adafruit", "Trinket M0", "0x239A", ["0x801E", "0x001E"],
-           "TRINKET_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_TRINKET_M0", "trinketm0/bootloader-trinket_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_qtpy_m0", "qtpy_m0", 
-           "Adafruit", "QT Py M0", "0x239A", ["0x80CB", "0x00CB", "0x00CC"],
-           "QTPY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_QTPY_M0", "qtpyM0/bootloader-qtpy_m0.bin")
-
-make_board("SAMD21", "adafruit_neotrinkey_m0", "neotrinkey_m0", 
-           "Adafruit", "NeoPixel Trinkey M0", "0x239A", ["0x80EF", "0x00EF", "0x80F0"],
-           "NEOTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_NEOTRINKEY_M0", "neotrinkey_m0/bootloader-neotrinkey_m0.bin")
-
-make_board("SAMD21", "adafruit_rotarytrinkey_m0", "rotarytrinkey_m0", 
-           "Adafruit", "Rotary Trinkey M0", "0x239A", ["0x80FB", "0x00FB", "0x80FC"],
-           "ROTARYTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_ROTARYTRINKEY_M0", "rotarytrinkey_m0/bootloader-rotarytrinkey_m0.bin")
-
-make_board("SAMD21", "adafruit_neokeytrinkey_m0", "neokeytrinkey_m0", 
-           "Adafruit", "NeoKey Trinkey M0", "0x239A", ["0x80FF", "0x00FF", "0x8100"],
-           "NEOKEYTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_NEOKEYTRINKEY_M0", "neokeytrinkey_m0/bootloader-neokeytrinkey_m0.bin")
-
-make_board("SAMD21", "adafruit_slidetrinkey_m0", "slidetrinkey_m0", 
-           "Adafruit", "Slide Trinkey M0", "0x239A", ["0x8101", "0x0101", "0x8102"],
-           "SLIDETRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_SLIDETRINKEY_M0", "slidetrinkey_m0/bootloader-slidetrinkey_m0.bin")
-
-make_board("SAMD21", "adafruit_proxlighttrinkey_m0", "proxlighttrinkey_m0", 
-           "Adafruit", "ProxLight Trinkey M0", "0x239A", ["0x8103", "0x0103", "0x8104"],
-           "PROXLIGHTTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_PROXLIGHTTRINKEY_M0", "proxlighttrinkey_m0/bootloader-proxlighttrinkey_m0.bin")
-
-make_board("SAMD21", "adafruit_itsybitsy_m0", "itsybitsy_m0", 
-           "Adafruit", "ItsyBitsy M0 Express", "0x239A", ["0x800F", "0x000F", "0x8012"],
-           "ITSYBITSY_M0", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_ITSYBITSY_M0", "itsybitsyM0/bootloader-itsybitsy_m0-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_pirkey", "pirkey", 
-           "Adafruit", "pIRKey", "0x239A", ["0x801E", "0x001E"],
-           "PIRKEY", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_PIRKEY", "pirkey/bootloader-pirkey-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD21", "adafruit_hallowing", "hallowing_m0_express", 
-           "Adafruit", "Hallowing M0", "0x239A", ["0xDEAD", "0xD1ED", "0xB000"],
-           "SAMD_HALLOWING", "-D__SAMD21G18A__ -DCRYSTALLESS -DARDUINO_SAMD_HALLOWING_M0 -DADAFRUIT_HALLOWING", "hallowingM0/bootloader-hallowing_m0-v2.0.0-adafruit.0-21-g887cc30.bin")
-
-make_board("SAMD21", "adafruit_crickit_m0", "crickit_m0", 
-           "Adafruit", "Crickit M0", "0x239A", ["0x802D", "0x002D", "0x802D"],
-           "CRICKIT_M0", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_CRICKIT_M0", "crickit/samd21_sam_ba.bin")
-
-make_board("SAMD21", "adafruit_blm_badge", "blm_badge", 
-           "Adafruit", "BLM Badge", "0x239A", ["0x80BF", "0x00BF", "0x80C0"],
-           "BLM_BADGE_M0", "-D__SAMD21E18A__ -DCRYSTALLESS  -DADAFRUIT_BLM_BADGE", "blmbadge/bootloader-blm_badge.bin")
-
-######################## SAMD51
-
-make_board("SAMD51", "adafruit_metro_m4", "metro_m4", 
-           "Adafruit", "Metro M4", "0x239A", ["0x8020", "0x0020", "0x8021", "0x0021"],
-           "METRO_M4", "-D__SAMD51J19A__ -DADAFRUIT_METRO_M4_EXPRESS", "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_grandcentral_m4", "grand_central_m4", 
-           "Adafruit", "Grand Central M4", "0x239A", ["0x8031", "0x0031", "0x0032"],
-           "GRAND_CENTRAL_M4", "-D__SAMD51P20A__ -DADAFRUIT_GRAND_CENTRAL_M4", "grand_central_m4/bootloader-grandcentral_m4.bin")
-
-make_board("SAMD51", "adafruit_itsybitsy_m4", "itsybitsy_m4", 
-           "Adafruit", "ItsyBitsy M4", "0x239A", ["0x802B", "0x002B"],
-           "ITSYBITSY_M4", "-D__SAMD51G19A__ -DCRYSTALLESS -DADAFRUIT_ITSYBITSY_M4_EXPRESS", "itsybitsyM4/bootloader-itsybitsy_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_feather_m4", "feather_m4", 
-           "Adafruit", "Feather M4 Express", "0x239A", ["0x8022", "0x0022", "0x8026"],
-           "FEATHER_M4", "-D__SAMD51J19A__ -DADAFRUIT_FEATHER_M4_EXPRESS", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAME51", "adafruit_feather_m4_can", "feather_m4_can", 
-           "Adafruit", "Feather M4 CAN", "0x239A", ["0x80CD", "0x00CD"],
-           "FEATHER_M4_CAN", "-D__SAME51J19A__ -DADAFRUIT_FEATHER_M4_EXPRESS -DADAFRUIT_FEATHER_M4_CAN", "featherM4/bootloader-feather_m4_express-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_trellis_m4", "trellis_m4", 
-           "Adafruit", "Trellis M4", "0x239A", ["0x802F", "0x002F", "0x0030"],
-           "TRELLIS_M4", "-D__SAMD51G19A__ -DCRYSTALLESS -DADAFRUIT_TRELLIS_M4_EXPRESS", "trellisM4/bootloader-trellis_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_pyportal_m4", "pyportal_m4", 
-           "Adafruit", "PyPortal M4", "0x239A", ["0x8035", "0x0035", "0x8036"],
-           "PYPORTAL_M4", "-D__SAMD51J20A__ -DCRYSTALLESS -DADAFRUIT_PYPORTAL", "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_pyportal_m4_titano", "pyportal_m4_titano", 
-           "Adafruit", "PyPortal M4 Titano", "0x239A", ["0x8053", "0x8053"],
-           "PYPORTAL_M4_TITANO", "-D__SAMD51J20A__ -DCRYSTALLESS -DADAFRUIT_PYPORTAL_M4_TITANO", "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_pybadge_m4", "pybadge_m4", 
-           "Adafruit", "pyBadge M4 Express", "0x239A", ["0x8033", "0x0033", "0x8034", "0x0034"],
-           "PYBADGE_M4", "-D__SAMD51J19A__ -DCRYSTALLESS -DADAFRUIT_PYBADGE_M4_EXPRESS", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_metro_m4_airliftlite", "metro_m4_airlift", 
-           "Adafruit", "Metro M4 AirLift Lite", "0x239A", ["0x8037", "0x0037"],
-           "METRO_M4_AIRLIFT_LITE", "-D__SAMD51J19A__ -DADAFRUIT_METRO_M4_AIRLIFT_LITE", "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_pygamer_m4", "pygamer_m4", 
-           "Adafruit", "PyGamer M4 Express", "0x239A", ["0x803D", "0x003D", "0x803E"],
-           "PYGAMER_M4", "-D__SAMD51J19A__ -DCRYSTALLESS  -DADAFRUIT_PYGAMER_M4_EXPRESS", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_pybadge_airlift_m4", "pybadge_airlift_m4", 
-           "Adafruit", "pyBadge AirLift M4", "0x239A", ["0x8043", "0x0043", "0x8044"],
-           "PYBADGE_AIRLIFT_M4", "-D__SAMD51J20A__ -DCRYSTALLESS  -DADAFRUIT_PYBADGE_AIRLIFT_M4", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_monster_m4sk", "monster_m4sk", 
-           "Adafruit", "MONSTER M4SK", "0x239A", ["0x8047", "0x0047", "0x8048"],
-           "MONSTER_M4SK", "-D__SAMD51G19A__ -DCRYSTALLESS  -DADAFRUIT_MONSTER_M4SK_EXPRESS", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_hallowing_m4", "hallowing_m4", 
-           "Adafruit", "Hallowing M4", "0x239A", ["0x8049", "0x0049", "0x804A"],
-           "HALLOWING_M4", "-D__SAMD51J19A__ -DCRYSTALLESS  -DADAFRUIT_HALLOWING_M4_EXPRESS", "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin")
-
-make_board("SAMD51", "adafruit_matrixportal_m4", "matrixportal_m4", 
-           "Adafruit", "Matrix Portal M4", "0x239A", ["0x80C9", "0x00C9", "0x80CA"],
-           "MATRIXPORTAL_M4", "-D__SAMD51J19A__ -DCRYSTALLESS  -DADAFRUIT_MATRIXPORTAL_M4_EXPRESS", "matrixportalM4/bootloader-matrixportal_m4.bin")

libraries/Adafruit_TinyUSB_Arduino

@@ -1 +1 @@
-Subproject commit 707dfe78daab7457eed3ab95800c9a9f5e4e8933
+Subproject commit c953968c468218d8968138b5ed8482fa565373df

libraries/Adafruit_ZeroDMA

@@ -1 +1 @@
-Subproject commit 655916e504e24ec92a46dd17c057ead9e2fe402d
+Subproject commit acc5dadb458b2c329757a61dc4f18dda945a0c36

platform.txt

@@ -17,10 +17,10 @@
 # Arduino SAMD Core and platform.
 #
 # For more info:
-# https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
+# https://arduino.github.io/arduino-cli/0.33/platform-specification/
 
 name=Adafruit SAMD (32-bits ARM Cortex-M0+ and Cortex-M4) Boards
-version=1.7.10
+version=1.7.16
 
 # Compile variables
 # -----------------
@@ -143,6 +143,7 @@ tools.bossac.upload.network_pattern="{network_cmd}" -address {serial.port} -port
 
 tools.bossac18.path={runtime.tools.bossac-1.8.0-48-gb176eee.path}
 tools.bossac18.cmd=bossac
+tools.bossac18.cmd.windows=bossac.exe
 
 tools.bossac18.upload.params.verbose=-i -d
 tools.bossac18.upload.params.quiet=
@@ -172,13 +173,13 @@ tools.bossacI.upload.network_pattern="{network_cmd}" -address {serial.port} -por
 # OpenOCD sketch upload
 #
 
-tools.openocd.path={runtime.tools.openocd-0.10.0-arduino7.path}
+tools.openocd.path={runtime.tools.openocd-0.11.0-arduino2.path}
 tools.openocd.cmd=bin/openocd
 tools.openocd.cmd.windows=bin/openocd.exe
 
 tools.openocd.upload.params.verbose=-d2
 tools.openocd.upload.params.quiet=-d0
-tools.openocd.upload.pattern="{path}/{cmd}" {upload.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.bin} verify reset 0x2000; shutdown"
+tools.openocd.upload.pattern="{path}/{cmd}" {upload.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.bin} verify reset 0x2000; shutdown"
 
 tools.openocd.network_cmd={runtime.tools.arduinoOTA.path}/bin/arduinoOTA
 tools.openocd.upload.network_pattern={network_cmd} -address {serial.port} -port 65280 -username arduino -password "{network.password}" -sketch "{build.path}/{build.project_name}.bin" -upload /sketch -b
@@ -186,7 +187,7 @@ tools.openocd.upload.network_pattern={network_cmd} -address {serial.port} -port
 # Program flashes the binary at 0x0000, so use the linker script without_bootloader
 tools.openocd.program.params.verbose=-d2
 tools.openocd.program.params.quiet=-d0
-tools.openocd.program.pattern="{path}/{cmd}" {program.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.elf} verify reset; shutdown"
+tools.openocd.program.pattern="{path}/{cmd}" {program.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.elf} verify reset; shutdown"
 
 tools.openocd.erase.params.verbose=-d3
 tools.openocd.erase.params.quiet=-d0
@@ -194,25 +195,25 @@ tools.openocd.erase.pattern=
 
 tools.openocd.bootloader.params.verbose=-d2
 tools.openocd.bootloader.params.quiet=-d0
-tools.openocd.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; init; halt; at91samd bootloader 0; program {{runtime.platform.path}/bootloaders/{bootloader.file}} verify reset; shutdown"
+tools.openocd.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; init; halt; $_FLASHDRIVER bootloader 0; program {{runtime.platform.path}/bootloaders/{bootloader.file}} verify reset; shutdown"
 
 #
 # OpenOCD sketch upload - version with configurable bootloader size
 # FIXME: this programmer is a workaround for default options being overwritten by uploadUsingPreferences
 #
 
-tools.openocd-withbootsize.path={runtime.tools.openocd-0.10.0-arduino7.path}
+tools.openocd-withbootsize.path={runtime.tools.openocd-0.11.0-arduino2.path}
 tools.openocd-withbootsize.cmd=bin/openocd
 tools.openocd-withbootsize.cmd.windows=bin/openocd.exe
 
 tools.openocd-withbootsize.upload.params.verbose=-d2
 tools.openocd-withbootsize.upload.params.quiet=-d0
-tools.openocd-withbootsize.upload.pattern="{path}/{cmd}" {upload.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.bin} verify reset {bootloader.size}; shutdown"
+tools.openocd-withbootsize.upload.pattern="{path}/{cmd}" {upload.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.bin} verify reset {bootloader.size}; shutdown"
 
 # Program flashes the binary at 0x0000, so use the linker script without_bootloader
 tools.openocd-withbootsize.program.params.verbose=-d2
 tools.openocd-withbootsize.program.params.quiet=-d0
-tools.openocd-withbootsize.program.pattern="{path}/{cmd}" {program.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.elf} verify reset; shutdown"
+tools.openocd-withbootsize.program.pattern="{path}/{cmd}" {program.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; program {{build.path}/{build.project_name}.elf} verify reset; shutdown"
 
 tools.openocd-withbootsize.erase.params.verbose=-d3
 tools.openocd-withbootsize.erase.params.quiet=-d0
@@ -220,4 +221,28 @@ tools.openocd-withbootsize.erase.pattern=
 
 tools.openocd-withbootsize.bootloader.params.verbose=-d2
 tools.openocd-withbootsize.bootloader.params.quiet=-d0
-tools.openocd-withbootsize.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/variants/{build.variant}/{build.openocdscript}" -c "telnet_port disabled; init; halt; at91samd bootloader 0; program {{runtime.platform.path}/bootloaders/{bootloader.file}} verify reset; shutdown"
+tools.openocd-withbootsize.bootloader.pattern="{path}/{cmd}" {bootloader.verbose} -s "{path}/share/openocd/scripts/" -f "{runtime.platform.path}/{build.openocdscript}" -c "telnet_port disabled; init; halt; $_FLASHDRIVER bootloader 0; program {{runtime.platform.path}/bootloaders/{bootloader.file}} verify reset; shutdown"
+
+# ----------------------------------------
+# Debugger configuration (general options)
+# ----------------------------------------
+# EXPERIMENTAL feature:
+#  - this is alpha and may be subject to change without notice
+debug.executable={build.path}/{build.project_name}.elf
+debug.toolchain=gcc
+debug.toolchain.path={runtime.tools.arm-none-eabi-gcc.path}/bin/
+debug.toolchain.prefix=arm-none-eabi-
+
+debug.server=openocd
+debug.server.openocd.path={runtime.tools.openocd-0.11.0-arduino2.path}/bin/openocd
+debug.server.openocd.scripts_dir={runtime.tools.openocd-0.11.0-arduino2.path}/share/openocd/scripts/
+debug.server.openocd.script={runtime.platform.path}/{build.openocdscript}
+
+# JLinkServer is not supported by arduino-cli yet
+#   https://github.com/arduino/arduino-cli/blob/eca9d9a8f00582a08fadea8a4b7e3ef01b40d082/commands/debug/debug.go#L160
+# use debug_custom.json to run JLinkGDBServer instead
+#   https://docs.arduino.cc/tutorials/mkr-wifi-1010/mkr-jlink-setup
+#debug.server=jlink
+#debug.server.jlink.path=JLinkGDBServer
+#debug.server.jlink.device=ATSAMD21G18
+#debug.server.jlink.script={runtime.platform.path}/{build.openocdscript}

scripts/jlink/samd21/debug_custom.json

@@ -0,0 +1,6 @@
+{
+  "servertype": "jlink",
+  "device": "ATSAMD21G18A",
+  "interface": "SWD",
+  "serverpath": "JLinkGDBServer"
+}

scripts/jlink/samd51/debug_custom.json

@@ -0,0 +1,6 @@
+{
+  "servertype": "jlink",
+  "device": "ATSAMD51G18",
+  "interface": "SWD",
+  "serverpath": "JLinkGDBServer"
+}

scripts/openocd/daplink_samd21.cfg

@@ -0,0 +1,29 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+source [find interface/cmsis-dap.cfg]
+transport select swd
+
+# chip name
+set CHIPNAME samd21
+
+set _FLASHDRIVER at91samd
+
+source [find target/at91samdXX.cfg]

scripts/openocd/daplink_samd51.cfg

@@ -0,0 +1,29 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+source [find interface/cmsis-dap.cfg]
+transport select swd
+
+# chip name
+set CHIPNAME samd51
+
+set _FLASHDRIVER atsame5
+
+source [find target/atsame5x.cfg]

scripts/openocd/jlink_samd21.cfg

@@ -0,0 +1,29 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+source [find interface/jlink.cfg]
+transport select swd
+
+# chip name
+set CHIPNAME samd21
+
+set _FLASHDRIVER at91samd
+
+source [find target/at91samdXX.cfg]

scripts/openocd/jlink_samd51.cfg

@@ -0,0 +1,29 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+source [find interface/jlink.cfg]
+transport select swd
+
+# chip name
+set CHIPNAME samd51
+
+set _FLASHDRIVER atsame5
+
+source [find target/atsame5x.cfg]

tools/makeboards.py

@@ -0,0 +1,414 @@
+#!/usr/bin/env python3
+
+print('''# Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+''')
+
+mcu_dict = {
+    'SAMD21': {
+        'flash_size': 262144,
+        'data_size': 0,
+        'offset': '0x2000',
+        'build_mcu': 'cortex-m0plus',
+        'f_cpu': '48000000L',
+        'extra_flags': '-DARDUINO_SAMD_ZERO -DARM_MATH_CM0PLUS',
+        'openocdscript': 'scripts/openocd/daplink_samd21.cfg',
+    },
+
+    'SAMD51': {
+        'flash_size': 507904, # SAMD51P20A and SAMD51J20A has 1032192
+        'data_size': 0,
+        'offset': '0x4000',
+        'build_mcu': 'cortex-m4',
+        'f_cpu': '120000000L',
+        'extra_flags': '-D__SAMD51__ -D__FPU_PRESENT -DARM_MATH_CM4 -mfloat-abi=hard -mfpu=fpv4-sp-d16',
+        'openocdscript': 'scripts/openocd/daplink_samd51.cfg',
+    },
+
+    'SAME51': {
+        'flash_size': 507904,
+        'data_size': 0,
+        'offset': '0x4000',
+        'build_mcu': 'cortex-m4',
+        'f_cpu': '120000000L',
+        'extra_flags': '-D__SAMD51__ -D__FPU_PRESENT -DARM_MATH_CM4 -mfloat-abi=hard -mfpu=fpv4-sp-d16',
+        'openocdscript': 'scripts/openocd/daplink_samd51.cfg',
+    },
+}
+
+
+def build_header(mcu, name, vendor, product, vid, pid_list):
+    prettyname = f"{vendor} {product} ({mcu})"
+    print()
+    print("# -----------------------------------")
+    print(f"# {prettyname}")
+    print("# -----------------------------------")
+    print(f"{name}.name={prettyname}")
+    print()
+
+    print("# VID/PID for Bootloader, Arduino & CircuitPython")
+    for i in range(len(pid_list)):
+        print(f"{name}.vid.{i}={vid}")
+        print(f"{name}.pid.{i}={pid_list[i]}")
+    print()
+
+
+def build_upload(mcu, name, extra_flags):
+    print("# Upload")    
+    print(f"{name}.upload.tool=bossac18")
+    print(f"{name}.upload.protocol=sam-ba")
+    
+    if ('SAMD51P20A' in extra_flags) or ('SAMD51J20A' in extra_flags):
+        flash_size = 1032192
+    else:
+        flash_size = mcu_dict[mcu]['flash_size']
+    print(f"{name}.upload.maximum_size={flash_size}")
+    #print(f"{name}.upload.maximum_data_size={mcu_dict[mcu]['data_size']}")
+    
+    print(f"{name}.upload.offset={mcu_dict[mcu]['offset']}")
+    print(f"{name}.upload.use_1200bps_touch=true")
+    print(f"{name}.upload.wait_for_upload_port=true")
+    print(f"{name}.upload.native_usb=true")
+    print()
+
+
+def build_build(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader):
+    mcu_properties = mcu_dict[mcu]
+
+    print("# Build")
+    print(f"{name}.build.mcu={mcu_properties['build_mcu']}")
+    print(f"{name}.build.f_cpu={mcu_properties['f_cpu']}")
+    print(f'{name}.build.usb_product="{product}"')
+    print(f'{name}.build.usb_manufacturer="{vendor}"')
+    print(f"{name}.build.board={boarddefine}")
+    print(f"{name}.build.core=arduino")
+
+    # Due to fastLed issue https://github.com/FastLED/FastLED/issues/1363
+    # although there is a simple fix already https://github.com/FastLED/FastLED/pull/1424
+    # fastLED is not well maintained, and we need to skip ARDUINO_SAMD_ZERO for affected boards
+    # in the long run we should move all of our libraries away from ARDUINO_SAMD_ZERO
+    if variant in [ 'gemma_m0', 'trinket_m0', 'qtpy_m0', 'itsybitsy_m0' ]:
+        print(f"{name}.build.extra_flags={extra_flags} -DARM_MATH_CM0PLUS {{build.usb_flags}}")
+    else:
+        print(f"{name}.build.extra_flags={extra_flags} {mcu_properties['extra_flags']} {{build.usb_flags}}")
+
+    print(f"{name}.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld")
+    print(f"{name}.build.openocdscript={mcu_properties['openocdscript']}")
+    print(f"{name}.build.variant={variant}")
+    print(f"{name}.build.variant_system_lib=")
+    print(f"{name}.build.vid={vid}")
+    print(f"{name}.build.pid={pid_list[0]}")
+    print(f"{name}.bootloader.tool=openocd")
+    print(f"{name}.bootloader.file={bootloader}")
+    if (mcu == 'SAMD51' or mcu == 'SAME51'):
+        print(f'{name}.compiler.arm.cmsis.ldflags="-L{{runtime.tools.CMSIS-5.4.0.path}}/CMSIS/Lib/GCC/" "-L{{build.variant.path}}" -larm_cortexM4lf_math -mfloat-abi=hard -mfpu=fpv4-sp-d16')
+    print()
+    
+
+def build_menu(mcu, name):
+    if (mcu == 'SAMD51' or mcu == 'SAME51'):
+        print("# Menu: Cache")
+        print(f"{name}.menu.cache.on=Enabled")
+        print(f"{name}.menu.cache.on.build.cache_flags=-DENABLE_CACHE")
+        print(f"{name}.menu.cache.off=Disabled")
+        print(f"{name}.menu.cache.off.build.cache_flags=")
+        print()
+
+        print("# Menu: Speed")
+        print(f"{name}.menu.speed.120=120 MHz (standard)")
+        print(f"{name}.menu.speed.120.build.f_cpu=120000000L")
+        print(f"{name}.menu.speed.150=150 MHz (overclock)")
+        print(f"{name}.menu.speed.150.build.f_cpu=150000000L")
+        print(f"{name}.menu.speed.180=180 MHz (overclock)")
+        print(f"{name}.menu.speed.180.build.f_cpu=180000000L")
+        print(f"{name}.menu.speed.200=200 MHz (overclock)")
+        print(f"{name}.menu.speed.200.build.f_cpu=200000000L")
+        print()
+
+    print("# Menu: Optimization")
+    print(f"{name}.menu.opt.small=Small (-Os) (standard)")
+    print(f"{name}.menu.opt.small.build.flags.optimize=-Os")
+    print(f"{name}.menu.opt.fast=Fast (-O2)")
+    print(f"{name}.menu.opt.fast.build.flags.optimize=-O2")
+    print(f"{name}.menu.opt.faster=Faster (-O3)")
+    print(f"{name}.menu.opt.faster.build.flags.optimize=-O3")
+    print(f"{name}.menu.opt.fastest=Fastest (-Ofast)")
+    print(f"{name}.menu.opt.fastest.build.flags.optimize=-Ofast")
+    print(f"{name}.menu.opt.dragons=Here be dragons (-Ofast -funroll-loops)")
+    print(f"{name}.menu.opt.dragons.build.flags.optimize=-Ofast -funroll-loops")
+    print()
+    
+    if (mcu == 'SAMD51' or mcu == 'SAME51'):
+        print("# Menu: QSPI Speed")
+        print(f"{name}.menu.maxqspi.50=50 MHz (standard)")
+        print(f"{name}.menu.maxqspi.50.build.flags.maxqspi=-DVARIANT_QSPI_BAUD_DEFAULT=50000000")
+        print(f"{name}.menu.maxqspi.fcpu=CPU Speed / 2")
+        print(f"{name}.menu.maxqspi.fcpu.build.flags.maxqspi=-DVARIANT_QSPI_BAUD_DEFAULT=({{build.f_cpu}})")
+        print()
+
+    print("# Menu: USB Stack")
+    print(f"{name}.menu.usbstack.arduino=Arduino")
+    print(f"{name}.menu.usbstack.tinyusb=TinyUSB")
+    print(f"{name}.menu.usbstack.tinyusb.build.flags.usbstack=-DUSE_TINYUSB")
+    print()
+
+    print("# Menu: Debug")
+    print(f"{name}.menu.debug.off=Off")
+    print(f"{name}.menu.debug.on=On")
+    print(f"{name}.menu.debug.on.build.flags.debug=-g")
+    print()
+
+    # comment out for now since debugger selection does not work, debug does not pickup the right openocd script
+    # print("# Menu: Debugger")
+    # script_mcu = 'samd21' if mcu == 'SAMD21' else 'samd51'
+    # print(f"{name}.menu.debugger.daplink=CMSIS-DAP (DAPLink)")
+    # print(f"{name}.menu.debugger.daplink.build.openocdscript=scripts/openocd/daplink_{script_mcu}.cfg")
+    # print(f"{name}.menu.debugger.jlink=J-Link")
+    # print(f"{name}.menu.debugger.jlink.build.openocdscript=scripts/openocd/jlink_{script_mcu}.cfg")
+
+
+def build_global_menu():
+    print("menu.cache=Cache")
+    print("menu.speed=CPU Speed")
+    print("menu.opt=Optimize")
+    print("menu.maxqspi=Max QSPI")    
+    print("menu.usbstack=USB Stack")
+    print("menu.debug=Debug")
+    #print("menu.debugger=Debugger")
+
+
+def make_board(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader):
+    build_header(mcu, name, vendor, product, vid, pid_list)
+    build_upload(mcu, name, extra_flags)
+    build_build(mcu, name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader)    
+    build_menu(mcu, name)
+
+
+# ------------------------------
+# main
+# ------------------------------
+
+build_global_menu()
+
+# ------------------------------
+# SAM D21 (M0)
+# ------------------------------
+
+# name, variant, vendor, product, vid, pid_list, boarddefine, extra_flags, bootloader
+# try to sort in Alphabetical order
+d21_board_list = [
+    ["adafruit_feather_m0", "feather_m0", "Adafruit", "Feather M0",
+     "0x239A", ["0x800B", "0x000B", "0x0015"],
+     "SAMD_ZERO", "-D__SAMD21G18A__ -DADAFRUIT_FEATHER_M0",
+     "featherM0/bootloader-feather_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_feather_m0_express", "feather_m0_express", "Adafruit", "Feather M0 Express",
+     "0x239A", ["0x801B", "0x001B"],
+     "SAMD_FEATHER_M0_EXPRESS", "-D__SAMD21G18A__ -DARDUINO_SAMD_FEATHER_M0 -DADAFRUIT_FEATHER_M0_EXPRESS",
+     "featherM0/bootloader-feather_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_metro_m0", "metro_m0", "Adafruit", "Metro M0 Express",
+     "0x239A", ["0x8013", "0x0013"],
+     "SAMD_ZERO", "-D__SAMD21G18A__ -DADAFRUIT_METRO_M0_EXPRESS",
+     "metroM0/bootloader-metro_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_circuitplayground_m0", "circuitplay", "Adafruit", "Circuit Playground Express",
+     "0x239A", ["0x8018", "0x0019"],
+     "SAMD_CIRCUITPLAYGROUND_EXPRESS", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_CIRCUITPLAYGROUND_M0",
+     "circuitplayM0/bootloader-circuitplay_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_gemma_m0", "gemma_m0", "Adafruit", "Gemma M0",
+     "0x239A", ["0x801C", "0x001C"],
+     "GEMMA_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_GEMMA_M0",
+     "gemmaM0/bootloader-gemma_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_trinket_m0", "trinket_m0", "Adafruit", "Trinket M0",
+     "0x239A", ["0x801E", "0x001E"],
+     "TRINKET_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_TRINKET_M0",
+     "trinketm0/bootloader-trinket_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_qtpy_m0", "qtpy_m0", "Adafruit", "QT Py M0",
+     "0x239A", ["0x80CB", "0x00CB", "0x00CC"],
+     "QTPY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_QTPY_M0",
+     "qtpyM0/bootloader-qtpy_m0.bin"],
+
+    ["adafruit_neotrinkey_m0", "neotrinkey_m0", "Adafruit", "NeoPixel Trinkey M0",
+     "0x239A", ["0x80EF", "0x00EF", "0x80F0"],
+     "NEOTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_NEOTRINKEY_M0",
+     "neotrinkey_m0/bootloader-neotrinkey_m0.bin"],
+
+    ["adafruit_rotarytrinkey_m0", "rotarytrinkey_m0", "Adafruit", "Rotary Trinkey M0",
+     "0x239A", ["0x80FB", "0x00FB", "0x80FC"],
+     "ROTARYTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_ROTARYTRINKEY_M0",
+     "rotarytrinkey_m0/bootloader-rotarytrinkey_m0.bin"],
+
+    ["adafruit_neokeytrinkey_m0", "neokeytrinkey_m0", "Adafruit", "NeoKey Trinkey M0",
+     "0x239A", ["0x80FF", "0x00FF", "0x8100"],
+     "NEOKEYTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_NEOKEYTRINKEY_M0",
+     "neokeytrinkey_m0/bootloader-neokeytrinkey_m0.bin"],
+
+    ["adafruit_slidetrinkey_m0", "slidetrinkey_m0", "Adafruit", "Slide Trinkey M0",
+     "0x239A", ["0x8101", "0x0101", "0x8102"],
+     "SLIDETRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_SLIDETRINKEY_M0",
+     "slidetrinkey_m0/bootloader-slidetrinkey_m0.bin"],
+
+    ["adafruit_proxlighttrinkey_m0", "proxlighttrinkey_m0", "Adafruit", "ProxLight Trinkey M0",
+     "0x239A", ["0x8103", "0x0103", "0x8104"],
+     "PROXLIGHTTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_PROXLIGHTTRINKEY_M0",
+     "proxlighttrinkey_m0/bootloader-proxlighttrinkey_m0.bin"],
+
+    ["adafruit_sht4xtrinkey_m0", "sht4xtrinkey_m0", "Adafruit", "SHT4x Trinkey M0",
+     "0x239A", ["0x8153", "0x0153", "0x8154"],
+     "SHT4XTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_SHT4XTRINKEY_M0",
+     "sht4xtrinkey_m0/bootloader-sht4xtrinkey_m0.bin"],
+
+    ["adafruit_pixeltrinkey_m0", "pixeltrinkey_m0", "Adafruit", "Pixel Trinkey M0",
+     "0x239A", ["0x8155", "0x0155", "0x8156"],
+     "PIXELTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_PIXELTRINKEY_M0",
+     "pixeltrinkey_m0/bootloader-pixeltrinkey_m0.bin"],
+
+    ["adafruit_TRRStrinkey_m0", "trrstrinkey_m0", "Adafruit", "TRRS Trinkey M0",
+     "0x239A", ["0x8157", "0x0157", "0x8158"],
+     "TRRSTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_TRRSTRINKEY_M0",
+     "trrstrinkey_m0/bootloader-TRRStrinkey_m0.bin"],
+
+    ["adafruit_thumbsticktrinkey_m0", "thumbsticktrinkey_m0", "Adafruit", "Thumbstick Trinkey M0",
+     "0x239A", ["0x8159", "0x0159", "0x8160"],
+     "THUMBSTICKTRINKEY_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_THUMBSTICKTRINKEY_M0",
+     "thumbsticktrinkey_m0/bootloader-thumbsticktrinkey_m0.bin"],
+
+    ["adafruit_itsybitsy_m0", "itsybitsy_m0", "Adafruit", "ItsyBitsy M0 Express",
+     "0x239A", ["0x800F", "0x000F", "0x8012"],
+     "ITSYBITSY_M0", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_ITSYBITSY_M0",
+     "itsybitsyM0/bootloader-itsybitsy_m0-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pirkey", "pirkey", "Adafruit", "pIRKey",
+     "0x239A", ["0x8027", "0x0027", "0x8028"],
+     "PIRKEY", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_PIRKEY",
+     "pirkey/bootloader-pirkey-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_hallowing", "hallowing_m0_express", "Adafruit", "Hallowing M0",
+     "0x239A", ["0xDEAD", "0xD1ED", "0xB000"],
+     "SAMD_HALLOWING", "-D__SAMD21G18A__ -DCRYSTALLESS -DARDUINO_SAMD_HALLOWING_M0 -DADAFRUIT_HALLOWING",
+     "hallowingM0/bootloader-hallowing_m0-v2.0.0-adafruit.0-21-g887cc30.bin"],
+
+    ["adafruit_crickit_m0", "crickit_m0", "Adafruit", "Crickit M0",
+     "0x239A", ["0x802D", "0x002D", "0x802D"],
+     "CRICKIT_M0", "-D__SAMD21G18A__ -DCRYSTALLESS -DADAFRUIT_CRICKIT_M0",
+     "crickit/samd21_sam_ba.bin"],
+
+    ["adafruit_blm_badge", "blm_badge", "Adafruit", "BLM Badge",
+     "0x239A", ["0x80BF", "0x00BF", "0x80C0"],
+     "BLM_BADGE_M0", "-D__SAMD21E18A__ -DCRYSTALLESS -DADAFRUIT_BLM_BADGE",
+     "blmbadge/bootloader-blm_badge.bin"],
+]
+
+for b in d21_board_list:
+    make_board("SAMD21", b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], b[8])
+
+
+# ----------------------------
+# SAM D51 and E51 (M4)
+# ----------------------------
+
+d51_board_list = [
+    ["adafruit_metro_m4", "metro_m4", "Adafruit", "Metro M4",
+     "0x239A", ["0x8020", "0x0020", "0x8021", "0x0021"],
+     "METRO_M4", "-D__SAMD51J19A__ -DADAFRUIT_METRO_M4_EXPRESS",
+     "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_grandcentral_m4", "grand_central_m4", "Adafruit", "Grand Central M4",
+     "0x239A", ["0x8031", "0x0031", "0x0032"],
+     "GRAND_CENTRAL_M4", "-D__SAMD51P20A__ -DADAFRUIT_GRAND_CENTRAL_M4",
+     "grand_central_m4/bootloader-grandcentral_m4.bin"],
+
+    ["adafruit_itsybitsy_m4", "itsybitsy_m4", "Adafruit", "ItsyBitsy M4",
+     "0x239A", ["0x802B", "0x002B"],
+     "ITSYBITSY_M4", "-D__SAMD51G19A__ -DCRYSTALLESS -DADAFRUIT_ITSYBITSY_M4_EXPRESS",
+     "itsybitsyM4/bootloader-itsybitsy_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_feather_m4", "feather_m4", "Adafruit", "Feather M4 Express",
+     "0x239A", ["0x8022", "0x0022", "0x8026"],
+     "FEATHER_M4", "-D__SAMD51J19A__ -DADAFRUIT_FEATHER_M4_EXPRESS",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_feather_m4_can", "feather_m4_can", "Adafruit", "Feather M4 CAN",
+     "0x239A", ["0x80CD", "0x00CD"],
+     "FEATHER_M4_CAN", "-D__SAME51J19A__ -DADAFRUIT_FEATHER_M4_EXPRESS -DADAFRUIT_FEATHER_M4_CAN",
+     "featherM4/bootloader-feather_m4_express-v2.0.0-adafruit.5.bin"],
+
+    # ["adafruit_feather_m4_log", "feather_m4_log", "Adafruit", "Feather M4 Adalogger",
+    #  "0x239A", ["0x8115", "0x0115", "0x8116"],
+    #  "FEATHER_M4_ADALOGGER", "-D__SAME51J19A__ -DADAFRUIT_FEATHER_M4_ADALOGGER",
+    #  "feather_m4_log/bootloader-feather_m4_log-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_trellis_m4", "trellis_m4",
+     "Adafruit", "Trellis M4", "0x239A", ["0x802F", "0x002F", "0x0030"],
+     "TRELLIS_M4", "-D__SAMD51G19A__ -DCRYSTALLESS -DADAFRUIT_TRELLIS_M4_EXPRESS",
+     "trellisM4/bootloader-trellis_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pyportal_m4", "pyportal_m4", "Adafruit", "PyPortal M4",
+     "0x239A", ["0x8035", "0x0035", "0x8036"],
+     "PYPORTAL_M4", "-D__SAMD51J20A__ -DCRYSTALLESS -DADAFRUIT_PYPORTAL",
+     "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pyportal_m4_titano", "pyportal_m4_titano", "Adafruit", "PyPortal M4 Titano",
+     "0x239A", ["0x8053", "0x8053"],
+     "PYPORTAL_M4_TITANO", "-D__SAMD51J20A__ -DCRYSTALLESS -DADAFRUIT_PYPORTAL_M4_TITANO",
+     "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pybadge_m4", "pybadge_m4", "Adafruit", "pyBadge M4 Express",
+     "0x239A", ["0x8033", "0x0033", "0x8034", "0x0034"],
+     "PYBADGE_M4", "-D__SAMD51J19A__ -DCRYSTALLESS -DADAFRUIT_PYBADGE_M4_EXPRESS",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_metro_m4_airliftlite", "metro_m4_airlift", "Adafruit", "Metro M4 AirLift Lite",
+     "0x239A", ["0x8037", "0x0037"],
+     "METRO_M4_AIRLIFT_LITE", "-D__SAMD51J19A__ -DADAFRUIT_METRO_M4_AIRLIFT_LITE",
+     "metroM4/bootloader-metro_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pygamer_m4", "pygamer_m4", "Adafruit", "PyGamer M4 Express",
+     "0x239A", ["0x803D", "0x003D", "0x803E"],
+     "PYGAMER_M4", "-D__SAMD51J19A__ -DCRYSTALLESS -DADAFRUIT_PYGAMER_M4_EXPRESS",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_pybadge_airlift_m4", "pybadge_airlift_m4", "Adafruit", "pyBadge AirLift M4",
+     "0x239A", ["0x8043", "0x0043", "0x8044"],
+     "PYBADGE_AIRLIFT_M4", "-D__SAMD51J20A__ -DCRYSTALLESS -DADAFRUIT_PYBADGE_AIRLIFT_M4",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_monster_m4sk", "monster_m4sk", "Adafruit", "MONSTER M4SK",
+     "0x239A", ["0x8047", "0x0047", "0x8048"],
+     "MONSTER_M4SK", "-D__SAMD51G19A__ -DCRYSTALLESS -DADAFRUIT_MONSTER_M4SK_EXPRESS",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_hallowing_m4", "hallowing_m4", "Adafruit", "Hallowing M4",
+     "0x239A", ["0x8049", "0x0049", "0x804A"],
+     "HALLOWING_M4", "-D__SAMD51J19A__ -DCRYSTALLESS -DADAFRUIT_HALLOWING_M4_EXPRESS",
+     "featherM4/bootloader-feather_m4-v2.0.0-adafruit.5.bin"],
+
+    ["adafruit_matrixportal_m4", "matrixportal_m4", "Adafruit", "Matrix Portal M4",
+     "0x239A", ["0x80C9", "0x00C9", "0x80CA"],
+     "MATRIXPORTAL_M4", "-D__SAMD51J19A__ -DCRYSTALLESS  -DADAFRUIT_MATRIXPORTAL_M4_EXPRESS",
+     "matrixportalM4/bootloader-matrixportal_m4.bin"],
+]
+
+for b in d51_board_list:
+    # M4 CAN is the only SAME51
+    if b[0] == "adafruit_feather_m4_can":
+        make_board("SAME51", b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], b[8])
+    else:
+        make_board("SAMD51", b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], b[8])

variants/feather_m4/linker_scripts/gcc/flash_with_bootloader.ld

@@ -170,6 +170,10 @@ SECTIONS
 		KEEP(*(.fini_array))
 		PROVIDE_HIDDEN (__fini_array_end = .);
 
+		. = ALIGN(4);
+		/* Keep .ramfunc functions in RAM */
+		KEEP(*(.ramfunc))
+
 		KEEP(*(.jcr*))
 		. = ALIGN(16);
 		/* All data end */

variants/gemma_m0/variant.h

@@ -89,6 +89,7 @@ extern "C"
 #define INTERNAL_DS_CLK      (4u)
 #define PIN_DOTSTAR_DATA     (3u)
 #define PIN_DOTSTAR_CLK      (4u)
+#define PIN_DOTSTAR_CLOCK    PIN_DOTSTAR_CLK
 #define DOTSTAR_NUM          (1u)
 
 /*

variants/itsybitsy_m0/variant.h

@@ -83,6 +83,7 @@ extern "C"
 // DotStar LED
 #define PIN_DOTSTAR_DATA     (41u)
 #define PIN_DOTSTAR_CLK      (40u)
+#define PIN_DOTSTAR_CLOCK    PIN_DOTSTAR_CLK
 #define DOTSTAR_NUM          (1u)
 
 /*

variants/itsybitsy_m4/variant.h

@@ -87,6 +87,7 @@ extern "C"
 // DotStar LED
 #define PIN_DOTSTAR_DATA     (8u)
 #define PIN_DOTSTAR_CLK      (6u)
+#define PIN_DOTSTAR_CLOCK    PIN_DOTSTAR_CLK
 #define DOTSTAR_NUM          (1u)
 
 /*

variants/pixeltrinkey_m0/debug_scripts/variant.gdb

@@ -0,0 +1,31 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC. All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# Define 'reset' command
+define reset
+
+info reg
+
+break main
+
+# End of 'reset' command
+end
+
+target remote | openocd -c "interface cmsis-dap" -c "set CHIPNAME at91samd21e18" -f target/at91samdXX.cfg -c "gdb_port pipe; log_output openocd.log"

variants/pixeltrinkey_m0/linker_scripts/gcc/flash_with_bootloader.ld

@@ -0,0 +1,216 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* First 8KB used by bootloader */
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.sketch_boot))
+
+		. = ALIGN(0x2000);
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM);
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/pixeltrinkey_m0/linker_scripts/gcc/flash_without_bootloader.ld

@@ -0,0 +1,214 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __ram_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM) ;
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/pixeltrinkey_m0/openocd_scripts/sht4xtrinkey_m0.cfg

@@ -0,0 +1,28 @@
+#
+#  Adafruit ItsyBitsy M0 OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# chip name
+set CHIPNAME at91samd21e18
+set ENDIAN little
+
+# choose a port here
+set telnet_port 0
+
+source [find target/at91samdXX.cfg]

variants/pixeltrinkey_m0/pins_arduino.h

@@ -0,0 +1,21 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+// API compatibility
+#include "variant.h"
+

variants/pixeltrinkey_m0/variant.cpp

@@ -0,0 +1,52 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "Arduino.h"
+/*
+ * Pins descriptions
+ */
+const PinDescription g_APinDescription[]=
+{
+  // DAC / A0 for monitoring 5V
+  { PORTA,  2, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_ANALOG|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel0, PWM2_CH0, TCC2_CH0, EXTERNAL_INT_2 }, // A0 / D0 / DAC  
+
+  // Internal NeoPixel / D1
+  { PORTA, 1, PIO_ANALOG, PIN_ATTR_ANALOG, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
+
+  // SPI MOSI/SCK
+  { PORTA, 4, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_4 }, // D2 / MOSI
+  { PORTA, 5, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_5 }, // D3 / SCK
+
+  // A6 / MISO
+  { PORTA, 6, PIO_ANALOG, PIN_ATTR_ANALOG, ADC_Channel6, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // A6 / MISO
+
+  // USB pins D5, D6, D7
+  { PORTA, 28, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB Host enable
+  { PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM
+  { PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP
+
+} ;
+
+const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
+
+// Multi-serial objects instantiation
+SERCOM sercom0( SERCOM0 ) ;
+SERCOM sercom1( SERCOM1 ) ;
+SERCOM sercom2( SERCOM2 ) ;
+SERCOM sercom3( SERCOM3 ) ;

variants/pixeltrinkey_m0/variant.h

@@ -0,0 +1,189 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_PIXELTRINKEY_ZERO_
+#define _VARIANT_PIXELTRINKEY_ZERO_
+
+// The definitions here needs a SAMD core >=1.6.10
+#define ARDUINO_SAMD_VARIANT_COMPLIANCE 10610
+
+/*----------------------------------------------------------------------------
+ *        Definitions
+ *----------------------------------------------------------------------------*/
+
+/** Frequency of the board main oscillator */
+#define VARIANT_MAINOSC		(32768ul)
+
+/** Master clock frequency */
+#define VARIANT_MCK	(F_CPU)
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+#include "SERCOM.h"
+#include "Uart.h"
+#endif // __cplusplus
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT           (7u)
+#define NUM_DIGITAL_PINS     (4u)
+#define NUM_ANALOG_INPUTS    (1u)
+#define NUM_ANALOG_OUTPUTS   (1u)
+#define analogInputToDigitalPin(p)  (p)
+
+#define digitalPinToPort(P)        ( &(PORT->Group[g_APinDescription[P].ulPort]) )
+#define digitalPinToBitMask(P)     ( 1 << g_APinDescription[P].ulPin )
+//#define analogInPinToBit(P)        ( )
+#define portOutputRegister(port)   ( &(port->OUT.reg) )
+#define portInputRegister(port)    ( &(port->IN.reg) )
+#define portModeRegister(port)     ( &(port->DIR.reg) )
+#define digitalPinHasPWM(P)        ( g_APinDescription[P].ulPWMChannel != NOT_ON_PWM || g_APinDescription[P].ulTCChannel != NOT_ON_TIMER )
+
+/*
+ * digitalPinToTimer(..) is AVR-specific and is not defined for SAMD
+ * architecture. If you need to check if a pin supports PWM you must
+ * use digitalPinHasPWM(..).
+ *
+ * https://github.com/arduino/Arduino/issues/1833
+ */
+// #define digitalPinToTimer(P)
+
+// LEDs
+#define PIN_NEOPIXEL         (1u)
+#define NUM_NEOPIXEL         (1u)
+
+#define PIN_DATA             (2u)
+#define PIN_CLOCK            (3u)
+
+/*
+ * Analog pins
+ */
+#define PIN_A0               (0ul)
+#define PIN_DAC0             PIN_A0
+
+#define PIN_A6               (4ul)
+
+static const uint8_t A0  = PIN_A0;
+
+static const uint8_t A6  = PIN_A6;
+
+#define ADC_RESOLUTION		12
+
+
+/*
+ * SPI Interfaces
+ */
+#define SPI_INTERFACES_COUNT 1
+
+#define PIN_SPI_MISO         (4ul) // off 3-pin JST, broken out
+#define PIN_SPI_MOSI         (2ul)
+#define PIN_SPI_SCK          (3ul)
+#define PERIPH_SPI           sercom0
+#define PAD_SPI_TX           SPI_PAD_0_SCK_1
+#define PAD_SPI_RX           SERCOM_RX_PAD_2
+
+static const uint8_t SS	  = (5ul); // not actually broken out
+static const uint8_t MOSI = PIN_SPI_MOSI;
+static const uint8_t MISO = PIN_SPI_MISO;
+static const uint8_t SCK  = PIN_SPI_SCK;
+
+/*
+ * Wire Interfaces, fake just for compilation
+ */
+#define WIRE_INTERFACES_COUNT 1
+
+#define PIN_WIRE_SDA         (2u)
+#define PIN_WIRE_SCL         (3u)
+#define PERIPH_WIRE          sercom0
+#define WIRE_IT_HANDLER      SERCOM0_Handler
+
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
+
+/*
+ * USB
+ */
+#define PIN_USB_HOST_ENABLE (5ul)
+#define PIN_USB_DM          (6ul)
+#define PIN_USB_DP          (7ul)
+/*
+ * I2S Interfaces
+ */
+#define I2S_INTERFACES_COUNT 0
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+
+/*	=========================
+ *	===== SERCOM DEFINITION
+ *	=========================
+*/
+extern SERCOM sercom0;
+extern SERCOM sercom1;
+extern SERCOM sercom2;
+extern SERCOM sercom3;
+extern SERCOM sercom4;
+extern SERCOM sercom5;
+
+
+#endif
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_USBVIRTUAL      Serial
+#define SERIAL_PORT_MONITOR         Serial
+// Serial has no physical pins broken out, so it's not listed as HARDWARE port
+#define SERIAL_PORT_HARDWARE        Serial1
+#define SERIAL_PORT_HARDWARE_OPEN   Serial1
+
+#endif /* _VARIANT_ARDUINO_ZERO_ */
+

variants/pyportal_m4/variant.h

@@ -160,7 +160,7 @@ static const uint8_t ATN = PIN_ATN;
 #define PAD_SPI_TX           SPI_PAD_0_SCK_1
 #define PAD_SPI_RX           SERCOM_RX_PAD_2
 
-static const uint8_t SS	  = PIN_A2;       // ???
+static const uint8_t SS	  = 32;
 static const uint8_t MOSI = PIN_SPI_MOSI;
 static const uint8_t MISO = PIN_SPI_MISO;
 static const uint8_t SCK  = PIN_SPI_SCK;

variants/pyportal_m4_titano/variant.h

@@ -160,7 +160,7 @@ static const uint8_t ATN = PIN_ATN;
 #define PAD_SPI_TX           SPI_PAD_0_SCK_1
 #define PAD_SPI_RX           SERCOM_RX_PAD_2
 
-static const uint8_t SS	  = PIN_A2;       // ???
+static const uint8_t SS	  = 32;
 static const uint8_t MOSI = PIN_SPI_MOSI;
 static const uint8_t MISO = PIN_SPI_MISO;
 static const uint8_t SCK  = PIN_SPI_SCK;

variants/sht4xtrinkey_m0/debug_scripts/variant.gdb

@@ -0,0 +1,31 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC. All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# Define 'reset' command
+define reset
+
+info reg
+
+break main
+
+# End of 'reset' command
+end
+
+target remote | openocd -c "interface cmsis-dap" -c "set CHIPNAME at91samd21e18" -f target/at91samdXX.cfg -c "gdb_port pipe; log_output openocd.log"

variants/sht4xtrinkey_m0/linker_scripts/gcc/flash_with_bootloader.ld

@@ -0,0 +1,216 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* First 8KB used by bootloader */
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.sketch_boot))
+
+		. = ALIGN(0x2000);
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM);
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/sht4xtrinkey_m0/linker_scripts/gcc/flash_without_bootloader.ld

@@ -0,0 +1,214 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __ram_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM) ;
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/sht4xtrinkey_m0/openocd_scripts/sht4xtrinkey_m0.cfg

@@ -0,0 +1,28 @@
+#
+#  Adafruit ItsyBitsy M0 OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# chip name
+set CHIPNAME at91samd21e18
+set ENDIAN little
+
+# choose a port here
+set telnet_port 0
+
+source [find target/at91samdXX.cfg]

variants/sht4xtrinkey_m0/pins_arduino.h

@@ -0,0 +1,21 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+// API compatibility
+#include "variant.h"
+

variants/sht4xtrinkey_m0/variant.cpp

@@ -0,0 +1,52 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "Arduino.h"
+/*
+ * Pins descriptions
+ */
+const PinDescription g_APinDescription[]=
+{
+  // Fake DAC A0 pin just so we can compile stuff
+  { PORTA,  2, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_ANALOG|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel0, PWM2_CH0, TCC2_CH0, EXTERNAL_INT_2 }, // A0 / D0 / DAC  
+
+  // touch / A1
+  { PORTA,  7, PIO_ANALOG, (PIN_ATTR_ANALOG|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel7, PWM1_CH1, TCC1_CH1, EXTERNAL_INT_7 }, // TCC1/WO[1]
+
+  // NeoPixel / D2
+  { PORTA, 3, PIO_ANALOG, PIN_ATTR_ANALOG, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
+
+  // I2C SDA D3 & SCL D4
+  { PORTA, 4, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_4 }, // D4 / SDA / PWM
+  { PORTA, 5, PIO_SERCOM_ALT, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_5 }, // D5 / SCL / PWM
+
+  // USB pins D5, D6, D7
+  { PORTA, 28, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB Host enable
+  { PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM
+  { PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP
+
+} ;
+
+const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
+
+// Multi-serial objects instantiation
+SERCOM sercom0( SERCOM0 ) ;
+SERCOM sercom1( SERCOM1 ) ;
+SERCOM sercom2( SERCOM2 ) ;
+SERCOM sercom3( SERCOM3 ) ;

variants/sht4xtrinkey_m0/variant.h

@@ -0,0 +1,188 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_SHT4XTRINKEY_ZERO_
+#define _VARIANT_SHT4XTRINKEY_ZERO_
+
+// The definitions here needs a SAMD core >=1.6.10
+#define ARDUINO_SAMD_VARIANT_COMPLIANCE 10610
+
+/*----------------------------------------------------------------------------
+ *        Definitions
+ *----------------------------------------------------------------------------*/
+
+/** Frequency of the board main oscillator */
+#define VARIANT_MAINOSC		(32768ul)
+
+/** Master clock frequency */
+#define VARIANT_MCK	(F_CPU)
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+#include "SERCOM.h"
+#include "Uart.h"
+#endif // __cplusplus
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT           (10u)
+#define NUM_DIGITAL_PINS     (6u)
+#define NUM_ANALOG_INPUTS    (2u)
+#define NUM_ANALOG_OUTPUTS   (1u)
+#define analogInputToDigitalPin(p)  (p)
+
+#define digitalPinToPort(P)        ( &(PORT->Group[g_APinDescription[P].ulPort]) )
+#define digitalPinToBitMask(P)     ( 1 << g_APinDescription[P].ulPin )
+//#define analogInPinToBit(P)        ( )
+#define portOutputRegister(port)   ( &(port->OUT.reg) )
+#define portInputRegister(port)    ( &(port->IN.reg) )
+#define portModeRegister(port)     ( &(port->DIR.reg) )
+#define digitalPinHasPWM(P)        ( g_APinDescription[P].ulPWMChannel != NOT_ON_PWM || g_APinDescription[P].ulTCChannel != NOT_ON_TIMER )
+
+/*
+ * digitalPinToTimer(..) is AVR-specific and is not defined for SAMD
+ * architecture. If you need to check if a pin supports PWM you must
+ * use digitalPinHasPWM(..).
+ *
+ * https://github.com/arduino/Arduino/issues/1833
+ */
+// #define digitalPinToTimer(P)
+
+// LEDs
+#define PIN_NEOPIXEL         (2u)
+#define NUM_NEOPIXEL         (1u)
+
+// TOUCH PINS
+#define PIN_TOUCH       1
+
+/*
+ * Analog pins
+ */
+#define PIN_A0               (0ul)
+#define PIN_A1               (1)
+#define PIN_DAC0             PIN_A0
+
+static const uint8_t A0  = PIN_A0;
+static const uint8_t A1  = PIN_A1;
+
+#define ADC_RESOLUTION		12
+
+
+/*
+ * SPI Interfaces
+ * Fake SPI Interface just so we can compile
+ */
+#define SPI_INTERFACES_COUNT 1
+
+#define PIN_SPI_MISO         PIN_A0
+#define PIN_SPI_MOSI         PIN_A0
+#define PIN_SPI_SCK          PIN_A0
+#define PERIPH_SPI           sercom0
+#define PAD_SPI_TX           SPI_PAD_0_SCK_1
+#define PAD_SPI_RX           SERCOM_RX_PAD_0
+
+static const uint8_t SS	  = PIN_A0;
+static const uint8_t MOSI = PIN_SPI_MOSI;
+static const uint8_t MISO = PIN_SPI_MISO;
+static const uint8_t SCK  = PIN_SPI_SCK;
+
+/*
+ * Wire Interfaces
+ */
+#define WIRE_INTERFACES_COUNT 1
+
+#define PIN_WIRE_SDA         (3u)
+#define PIN_WIRE_SCL         (4u)
+#define PERIPH_WIRE          sercom0
+#define WIRE_IT_HANDLER      SERCOM0_Handler
+
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
+
+/*
+ * USB
+ */
+#define PIN_USB_HOST_ENABLE (5ul)
+#define PIN_USB_DM          (6ul)
+#define PIN_USB_DP          (7ul)
+/*
+ * I2S Interfaces
+ */
+#define I2S_INTERFACES_COUNT 0
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+
+/*	=========================
+ *	===== SERCOM DEFINITION
+ *	=========================
+*/
+extern SERCOM sercom0;
+extern SERCOM sercom1;
+extern SERCOM sercom2;
+extern SERCOM sercom3;
+extern SERCOM sercom4;
+extern SERCOM sercom5;
+
+
+#endif
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_USBVIRTUAL      Serial
+#define SERIAL_PORT_MONITOR         Serial
+// Serial has no physical pins broken out, so it's not listed as HARDWARE port
+#define SERIAL_PORT_HARDWARE        Serial1
+#define SERIAL_PORT_HARDWARE_OPEN   Serial1
+
+#endif /* _VARIANT_ARDUINO_ZERO_ */
+

variants/thumbsticktrinkey_m0/debug_scripts/variant.gdb

@@ -0,0 +1,31 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC. All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# Define 'reset' command
+define reset
+
+info reg
+
+break main
+
+# End of 'reset' command
+end
+
+target remote | openocd -c "interface cmsis-dap" -c "set CHIPNAME at91samd21e18" -f target/at91samdXX.cfg -c "gdb_port pipe; log_output openocd.log"

variants/thumbsticktrinkey_m0/linker_scripts/gcc/flash_with_bootloader.ld

@@ -0,0 +1,216 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* First 8KB used by bootloader */
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.sketch_boot))
+
+		. = ALIGN(0x2000);
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM);
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/thumbsticktrinkey_m0/linker_scripts/gcc/flash_without_bootloader.ld

@@ -0,0 +1,214 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __ram_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM) ;
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/thumbsticktrinkey_m0/openocd_scripts/sht4xtrinkey_m0.cfg

@@ -0,0 +1,28 @@
+#
+#  Adafruit ItsyBitsy M0 OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# chip name
+set CHIPNAME at91samd21e18
+set ENDIAN little
+
+# choose a port here
+set telnet_port 0
+
+source [find target/at91samdXX.cfg]

variants/thumbsticktrinkey_m0/pins_arduino.h

@@ -0,0 +1,21 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+// API compatibility
+#include "variant.h"
+

variants/thumbsticktrinkey_m0/variant.cpp

@@ -0,0 +1,52 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "Arduino.h"
+/*
+ * Pins descriptions
+ */
+const PinDescription g_APinDescription[]=
+{
+  // X (D0)
+  { PORTA,  9, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_ANALOG), ADC_Channel17, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_9 },
+  // Y (D1)
+  { PORTA, 11, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_ANALOG), ADC_Channel19, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_11 },
+
+  // Button 1 (D2)
+  { PORTA, 6, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER|PIN_ATTR_ANALOG), ADC_Channel6, PWM1_CH0, TCC1_CH0, EXTERNAL_INT_6 },
+  // Button 2 (D3)
+  { PORTA, 7, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER|PIN_ATTR_ANALOG), ADC_Channel7, PWM1_CH1, TCC1_CH1, EXTERNAL_INT_7 },
+
+  // NeoPixel (D4)
+  { PORTA,  0, PIO_DIGITAL, PIN_ATTR_DIGITAL, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_6 }, // TCC1/WO[0]
+
+  // USB pins D5, D6, D7
+  { PORTA, 28, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB Host enable
+  { PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM
+  { PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP
+
+} ;
+
+const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
+
+// Multi-serial objects instantiation
+SERCOM sercom0( SERCOM0 ) ;
+SERCOM sercom1( SERCOM1 ) ;
+SERCOM sercom2( SERCOM2 ) ;
+SERCOM sercom3( SERCOM3 ) ;

variants/thumbsticktrinkey_m0/variant.h

@@ -0,0 +1,171 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_THUMBSTICKTRINKEY_ZERO_
+#define _VARIANT_THUMBSTICKTRINKEY_ZERO_
+
+// The definitions here needs a SAMD core >=1.6.10
+#define ARDUINO_SAMD_VARIANT_COMPLIANCE 10610
+
+/*----------------------------------------------------------------------------
+ *        Definitions
+ *----------------------------------------------------------------------------*/
+
+/** Frequency of the board main oscillator */
+#define VARIANT_MAINOSC		(32768ul)
+
+/** Master clock frequency */
+#define VARIANT_MCK	(F_CPU)
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+#include "SERCOM.h"
+#include "Uart.h"
+#endif // __cplusplus
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT           (10u)
+#define NUM_DIGITAL_PINS     (7u)
+#define NUM_ANALOG_INPUTS    (6u)
+#define NUM_ANALOG_OUTPUTS   (1u)
+#define analogInputToDigitalPin(p)  (p)
+
+#define digitalPinToPort(P)        ( &(PORT->Group[g_APinDescription[P].ulPort]) )
+#define digitalPinToBitMask(P)     ( 1 << g_APinDescription[P].ulPin )
+//#define analogInPinToBit(P)        ( )
+#define portOutputRegister(port)   ( &(port->OUT.reg) )
+#define portInputRegister(port)    ( &(port->IN.reg) )
+#define portModeRegister(port)     ( &(port->DIR.reg) )
+#define digitalPinHasPWM(P)        ( g_APinDescription[P].ulPWMChannel != NOT_ON_PWM || g_APinDescription[P].ulTCChannel != NOT_ON_TIMER )
+
+/*
+ * digitalPinToTimer(..) is AVR-specific and is not defined for SAMD
+ * architecture. If you need to check if a pin supports PWM you must
+ * use digitalPinHasPWM(..).
+ *
+ * https://github.com/arduino/Arduino/issues/1833
+ */
+// #define digitalPinToTimer(P)
+
+// LEDs
+#define PIN_NEOPIXEL         (4u)
+#define NUM_NEOPIXEL         (1u)
+
+#define PIN_JOY_X            (0ul)
+#define PIN_JOY_Y            (1ul)
+#define PIN_BUTTON1          (2ul)
+#define PIN_BUTTON2          (3ul)
+
+/*
+ * Analog pins
+ */
+#define PIN_A0               (0ul)
+#define PIN_A1               (1ul)
+#define PIN_DAC0             PIN_A0
+
+static const uint8_t A0  = PIN_A0;
+static const uint8_t A1  = PIN_A1;
+
+#define ADC_RESOLUTION		12
+
+
+/*
+ * SPI Interfaces
+ */
+#define SPI_INTERFACES_COUNT 0
+
+
+/*
+ * Wire Interfaces
+ */
+#define WIRE_INTERFACES_COUNT 0
+
+
+/*
+ * USB
+ */
+#define PIN_USB_HOST_ENABLE (5ul)
+#define PIN_USB_DM          (6ul)
+#define PIN_USB_DP          (7ul)
+/*
+ * I2S Interfaces
+ */
+#define I2S_INTERFACES_COUNT 0
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+
+/*	=========================
+ *	===== SERCOM DEFINITION
+ *	=========================
+*/
+extern SERCOM sercom0;
+extern SERCOM sercom1;
+extern SERCOM sercom2;
+extern SERCOM sercom3;
+extern SERCOM sercom4;
+extern SERCOM sercom5;
+
+
+#endif
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_USBVIRTUAL      Serial
+#define SERIAL_PORT_MONITOR         Serial
+// Serial has no physical pins broken out, so it's not listed as HARDWARE port
+#define SERIAL_PORT_HARDWARE        Serial1
+#define SERIAL_PORT_HARDWARE_OPEN   Serial1
+
+#endif /* _VARIANT_ARDUINO_ZERO_ */
+

variants/trinket_m0/variant.h

@@ -89,6 +89,7 @@ extern "C"
 #define INTERNAL_DS_CLK      (8u)
 #define PIN_DOTSTAR_DATA     (7u)
 #define PIN_DOTSTAR_CLK      (8u)
+#define PIN_DOTSTAR_CLOCK    PIN_DOTSTAR_CLK
 #define DOTSTAR_NUM          (1u)
 
 /*

variants/trrstrinkey_m0/debug_scripts/variant.gdb

@@ -0,0 +1,31 @@
+#
+#  Arduino Zero OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC. All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# Define 'reset' command
+define reset
+
+info reg
+
+break main
+
+# End of 'reset' command
+end
+
+target remote | openocd -c "interface cmsis-dap" -c "set CHIPNAME at91samd21e18" -f target/at91samdXX.cfg -c "gdb_port pipe; log_output openocd.log"

variants/trrstrinkey_m0/linker_scripts/gcc/flash_with_bootloader.ld

@@ -0,0 +1,216 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000+0x2000, LENGTH = 0x00040000-0x2000 /* First 8KB used by bootloader */
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.sketch_boot))
+
+		. = ALIGN(0x2000);
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM);
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/trrstrinkey_m0/linker_scripts/gcc/flash_without_bootloader.ld

@@ -0,0 +1,214 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/* Linker script to configure memory regions.
+ * Need modifying for a specific board.
+ *   FLASH.ORIGIN: starting address of flash
+ *   FLASH.LENGTH: length of flash
+ *   RAM.ORIGIN: starting address of RAM bank 0
+ *   RAM.LENGTH: length of RAM bank 0
+ */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ *   __ram_end__
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+	.text :
+	{
+		__text_start__ = .;
+
+		KEEP(*(.isr_vector))
+		*(.text*)
+
+		KEEP(*(.init))
+		KEEP(*(.fini))
+
+		/* .ctors */
+		*crtbegin.o(.ctors)
+		*crtbegin?.o(.ctors)
+		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+		*(SORT(.ctors.*))
+		*(.ctors)
+
+		/* .dtors */
+ 		*crtbegin.o(.dtors)
+ 		*crtbegin?.o(.dtors)
+ 		*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+ 		*(SORT(.dtors.*))
+ 		*(.dtors)
+
+		*(.rodata*)
+
+		KEEP(*(.eh_frame*))
+	} > FLASH
+
+	.ARM.extab :
+	{
+		*(.ARM.extab* .gnu.linkonce.armextab.*)
+	} > FLASH
+
+	__exidx_start = .;
+	.ARM.exidx :
+	{
+		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
+	} > FLASH
+	__exidx_end = .;
+
+	/* To copy multiple ROM to RAM sections,
+	 * uncomment .copy.table section and,
+	 * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.copy.table :
+	{
+		. = ALIGN(4);
+		__copy_table_start__ = .;
+		LONG (__etext)
+		LONG (__data_start__)
+		LONG (__data_end__ - __data_start__)
+		LONG (__etext2)
+		LONG (__data2_start__)
+		LONG (__data2_end__ - __data2_start__)
+		__copy_table_end__ = .;
+	} > FLASH
+	*/
+
+	/* To clear multiple BSS sections,
+	 * uncomment .zero.table section and,
+	 * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */
+	/*
+	.zero.table :
+	{
+		. = ALIGN(4);
+		__zero_table_start__ = .;
+		LONG (__bss_start__)
+		LONG (__bss_end__ - __bss_start__)
+		LONG (__bss2_start__)
+		LONG (__bss2_end__ - __bss2_start__)
+		__zero_table_end__ = .;
+	} > FLASH
+	*/
+
+	__etext = .;
+
+	.data : AT (__etext)
+	{
+		__data_start__ = .;
+		*(vtable)
+		*(.data*)
+
+		. = ALIGN(4);
+		/* preinit data */
+		PROVIDE_HIDDEN (__preinit_array_start = .);
+		KEEP(*(.preinit_array))
+		PROVIDE_HIDDEN (__preinit_array_end = .);
+
+		. = ALIGN(4);
+		/* init data */
+		PROVIDE_HIDDEN (__init_array_start = .);
+		KEEP(*(SORT(.init_array.*)))
+		KEEP(*(.init_array))
+		PROVIDE_HIDDEN (__init_array_end = .);
+
+
+		. = ALIGN(4);
+		/* finit data */
+		PROVIDE_HIDDEN (__fini_array_start = .);
+		KEEP(*(SORT(.fini_array.*)))
+		KEEP(*(.fini_array))
+		PROVIDE_HIDDEN (__fini_array_end = .);
+
+		KEEP(*(.jcr*))
+		. = ALIGN(16);
+		/* All data end */
+		__data_end__ = .;
+
+	} > RAM
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start__ = .;
+		*(.bss*)
+		*(COMMON)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} > RAM
+
+	.heap (COPY):
+	{
+		__end__ = .;
+		PROVIDE(end = .);
+		*(.heap*)
+		__HeapLimit = .;
+	} > RAM
+
+	/* .stack_dummy section doesn't contains any symbols. It is only
+	 * used for linker to calculate size of stack sections, and assign
+	 * values to stack symbols later */
+	.stack_dummy (COPY):
+	{
+		*(.stack*)
+	} > RAM
+
+	/* Set stack top to end of RAM, and stack limit move down by
+	 * size of stack_dummy section */
+	__StackTop = ORIGIN(RAM) + LENGTH(RAM) ;
+	__StackLimit = __StackTop - SIZEOF(.stack_dummy);
+	PROVIDE(__stack = __StackTop);
+
+	__ram_end__ = ORIGIN(RAM) + LENGTH(RAM) -1 ;
+
+	/* Check if data + heap + stack exceeds RAM limit */
+	ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}

variants/trrstrinkey_m0/openocd_scripts/sht4xtrinkey_m0.cfg

@@ -0,0 +1,28 @@
+#
+#  Adafruit ItsyBitsy M0 OpenOCD script.
+#
+#  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2.1 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#  See the GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+
+# chip name
+set CHIPNAME at91samd21e18
+set ENDIAN little
+
+# choose a port here
+set telnet_port 0
+
+source [find target/at91samdXX.cfg]

variants/trrstrinkey_m0/pins_arduino.h

@@ -0,0 +1,21 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+// API compatibility
+#include "variant.h"
+

variants/trrstrinkey_m0/variant.cpp

@@ -0,0 +1,64 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "Arduino.h"
+/*
+ * Pins descriptions
+ */
+const PinDescription g_APinDescription[]=
+{
+  // TRRS Tip, D0 / DAC / A0
+  { PORTA, 2, PIO_ANALOG, PIN_ATTR_ANALOG, ADC_Channel0, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_2 },
+  // TRRS Tip Switch, D1, A1
+  { PORTA, 3, PIO_ANALOG, PIN_ATTR_ANALOG, ADC_Channel1, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_3 },
+
+  // TRRS Ring 1, D2, A2
+  { PORTA, 6, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER|PIN_ATTR_ANALOG), ADC_Channel6, PWM1_CH0, TCC1_CH0, EXTERNAL_INT_6 },
+  // TRRS Ring 1 Switch, D3, A3
+  { PORTA, 7, PIO_ANALOG, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER|PIN_ATTR_ANALOG), ADC_Channel7, PWM1_CH1, TCC1_CH1, EXTERNAL_INT_7 },
+
+  // TRRS Ring2, D4, A4
+  { PORTA, 4, PIO_ANALOG, PIN_ATTR_DIGITAL, ADC_Channel4, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_4 },
+
+  // TRRS Sleeve, D5, A5
+  { PORTA, 5, PIO_ANALOG, PIN_ATTR_DIGITAL, ADC_Channel5, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_5 },
+
+  // Internal NeoPixel / D6
+  { PORTA, 1, PIO_ANALOG, PIN_ATTR_ANALOG, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE },
+
+  // QT SDA D7
+  { PORTA,  8, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel16, PWM0_CH0, TCC0_CH0, EXTERNAL_INT_NMI },  // TCC0/WO[0]
+
+  // QT SCL D8
+  { PORTA,  9, PIO_SERCOM_ALT, (PIN_ATTR_DIGITAL|PIN_ATTR_PWM|PIN_ATTR_TIMER), ADC_Channel17, PWM0_CH1, TCC0_CH1, EXTERNAL_INT_9 }, // TCC0/WO[1]
+
+  // USB pins D9, D10, D11
+  { PORTA, 28, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB Host enable
+  { PORTA, 24, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DM
+  { PORTA, 25, PIO_COM, PIN_ATTR_NONE, No_ADC_Channel, NOT_ON_PWM, NOT_ON_TIMER, EXTERNAL_INT_NONE }, // USB/DP
+
+} ;
+
+const void* g_apTCInstances[TCC_INST_NUM+TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 } ;
+
+// Multi-serial objects instantiation
+SERCOM sercom0( SERCOM0 ) ;
+SERCOM sercom1( SERCOM1 ) ;
+SERCOM sercom2( SERCOM2 ) ;
+SERCOM sercom3( SERCOM3 ) ;

variants/trrstrinkey_m0/variant.h

@@ -0,0 +1,207 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_TRRSTRINKEY_ZERO_
+#define _VARIANT_TRRSTRINKEY_ZERO_
+
+// The definitions here needs a SAMD core >=1.6.10
+#define ARDUINO_SAMD_VARIANT_COMPLIANCE 10610
+
+/*----------------------------------------------------------------------------
+ *        Definitions
+ *----------------------------------------------------------------------------*/
+
+/** Frequency of the board main oscillator */
+#define VARIANT_MAINOSC		(32768ul)
+
+/** Master clock frequency */
+#define VARIANT_MCK	(F_CPU)
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+#include "SERCOM.h"
+#include "Uart.h"
+#endif // __cplusplus
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT           (10u)
+#define NUM_DIGITAL_PINS     (7u)
+#define NUM_ANALOG_INPUTS    (6u)
+#define NUM_ANALOG_OUTPUTS   (1u)
+#define analogInputToDigitalPin(p)  (p)
+
+#define digitalPinToPort(P)        ( &(PORT->Group[g_APinDescription[P].ulPort]) )
+#define digitalPinToBitMask(P)     ( 1 << g_APinDescription[P].ulPin )
+//#define analogInPinToBit(P)        ( )
+#define portOutputRegister(port)   ( &(port->OUT.reg) )
+#define portInputRegister(port)    ( &(port->IN.reg) )
+#define portModeRegister(port)     ( &(port->DIR.reg) )
+#define digitalPinHasPWM(P)        ( g_APinDescription[P].ulPWMChannel != NOT_ON_PWM || g_APinDescription[P].ulTCChannel != NOT_ON_TIMER )
+
+/*
+ * digitalPinToTimer(..) is AVR-specific and is not defined for SAMD
+ * architecture. If you need to check if a pin supports PWM you must
+ * use digitalPinHasPWM(..).
+ *
+ * https://github.com/arduino/Arduino/issues/1833
+ */
+// #define digitalPinToTimer(P)
+
+// LEDs
+#define PIN_NEOPIXEL         (6u)
+#define NUM_NEOPIXEL         (1u)
+
+#define PIN_TIP              (0ul)
+#define PIN_TIP_SWITCH       (1ul)
+#define PIN_RING1            (2ul)
+#define PIN_RING1_SWITCH     (3ul)
+#define PIN_RING2            (4ul)
+#define PIN_SLEEVE           (5ul)
+
+/*
+ * Analog pins
+ */
+#define PIN_A0               (0ul)
+#define PIN_A1               (1ul)
+#define PIN_A2               (2ul)
+#define PIN_A3               (3ul)
+#define PIN_A4               (4ul)
+#define PIN_A5               (5ul)
+
+#define PIN_DAC0             PIN_A0
+
+static const uint8_t A0  = PIN_A0;
+static const uint8_t A1  = PIN_A1;
+static const uint8_t A2  = PIN_A2;
+static const uint8_t A3  = PIN_A3;
+static const uint8_t A4  = PIN_A4;
+static const uint8_t A5  = PIN_A5;
+
+#define ADC_RESOLUTION		12
+
+
+/*
+ * SPI Interfaces
+ */
+#define SPI_INTERFACES_COUNT 1
+
+#define PIN_SPI_MISO         PIN_RING1
+#define PIN_SPI_MOSI         PIN_RING2
+#define PIN_SPI_SCK          PIN_SLEEVE
+#define PERIPH_SPI           sercom0
+#define PAD_SPI_TX           SPI_PAD_0_SCK_1
+#define PAD_SPI_RX           SERCOM_RX_PAD_2
+
+static const uint8_t SS	  = PIN_TIP;
+static const uint8_t MOSI = PIN_SPI_MOSI;
+static const uint8_t MISO = PIN_SPI_MISO;
+static const uint8_t SCK  = PIN_SPI_SCK;
+
+/*
+ * Wire Interfaces, fake just for compilation
+ */
+#define WIRE_INTERFACES_COUNT 2
+
+// QT Port
+#define PIN_WIRE_SDA         (7ul)
+#define PIN_WIRE_SCL         (8ul)
+#define PERIPH_WIRE          sercom2
+#define WIRE_IT_HANDLER      SERCOM2_Handler
+
+// second, sekret I2C on the headphone jack
+#define PIN_WIRE1_SDA         PIN_RING2
+#define PIN_WIRE1_SCL         PIN_SLEEVE
+#define PERIPH_WIRE1          sercom0
+#define WIRE1_IT_HANDLER      SERCOM0_Handler
+
+static const uint8_t SDA = PIN_WIRE_SDA;
+static const uint8_t SCL = PIN_WIRE_SCL;
+
+/*
+ * USB
+ */
+#define PIN_USB_HOST_ENABLE (9ul)
+#define PIN_USB_DM          (10ul)
+#define PIN_USB_DP          (11ul)
+/*
+ * I2S Interfaces
+ */
+#define I2S_INTERFACES_COUNT 0
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+
+/*	=========================
+ *	===== SERCOM DEFINITION
+ *	=========================
+*/
+extern SERCOM sercom0;
+extern SERCOM sercom1;
+extern SERCOM sercom2;
+extern SERCOM sercom3;
+extern SERCOM sercom4;
+extern SERCOM sercom5;
+
+
+#endif
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_USBVIRTUAL      Serial
+#define SERIAL_PORT_MONITOR         Serial
+// Serial has no physical pins broken out, so it's not listed as HARDWARE port
+#define SERIAL_PORT_HARDWARE        Serial1
+#define SERIAL_PORT_HARDWARE_OPEN   Serial1
+
+#endif /* _VARIANT_ARDUINO_ZERO_ */
+