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cleaned up slight difference in USB union bitflags with a new USBDevice.h - compiles blink

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This commit is contained in:
ladyada 2016-04-16 00:19:38 -04:00 committed by dean
parent 605017712a
commit d19c8e35a9
7 changed files with 718 additions and 1 deletions
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27
boards.txt
View file

@ -70,3 +70,30 @@ adafruit_metro_m0.build.pid=0x8013
adafruit_metro_m0.bootloader.tool=openocd
adafruit_metro_m0.bootloader.file=metro/samd21_sam_ba.bin
adafruit_radio_m0.name=Adafruit M0 Radio (Native USB Port)
adafruit_radio_m0.vid.0=0x239A
adafruit_radio_m0.pid.0=0x8016
adafruit_radio_m0.vid.1=0x239A
adafruit_radio_m0.pid.1=0x0016
adafruit_radio_m0.upload.tool=bossac
adafruit_radio_m0.upload.protocol=sam-ba
adafruit_radio_m0.upload.maximum_size=262144
adafruit_radio_m0.upload.use_1200bps_touch=true
adafruit_radio_m0.upload.wait_for_upload_port=true
adafruit_radio_m0.upload.native_usb=true
adafruit_radio_m0.build.mcu=cortex-m0plus
adafruit_radio_m0.build.f_cpu=48000000L
adafruit_radio_m0.build.usb_product="Radio M0"
adafruit_radio_m0.build.usb_manufacturer="Adafruit"
adafruit_radio_m0.build.board=SAMD_ZERO
adafruit_radio_m0.build.core=arduino
adafruit_radio_m0.build.extra_flags=-D__SAMR21G18A__ {build.usb_flags}
adafruit_radio_m0.build.ldscript=linker_scripts/gcc/flash_with_bootloader.ld
adafruit_radio_m0.build.openocdscript=openocd_scripts/arduino_zero.cfg
adafruit_radio_m0.build.variant=zero_radio
adafruit_radio_m0.build.variant_system_lib=
adafruit_radio_m0.build.vid=0x239A
adafruit_radio_m0.build.pid=0x8016
adafruit_radio_m0.bootloader.tool=openocd
adafruit_radio_m0.bootloader.file=metro/samd21_sam_ba.bin

197
cores/arduino/USB/SAMR21_USBDevice.h Normal file
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@ -0,0 +1,197 @@
/*
Copyright (c) 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
*/
#pragma once
#include <Arduino.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
typedef uint8_t ep_t;
class USBDevice_SAMR21G18x {
public:
USBDevice_SAMR21G18x() : usb(USB->DEVICE) {
// Empty
}
// USB Device function mapping
// ---------------------------
// Reset USB Device
void reset();
// Enable
inline void enable() { usb.CTRLA.bit.ENABLE = 1; }
inline void disable() { usb.CTRLA.bit.ENABLE = 0; }
// USB mode (device/host)
inline void setUSBDeviceMode() { usb.CTRLA.bit.MODE = USB_CTRLA_MODE_DEVICE_Val; }
inline void setUSBHostMode() { usb.CTRLA.bit.MODE = USB_CTRLA_MODE_HOST_Val; }
inline void runInStandby() { usb.CTRLA.bit.RUNSTDBY = 1; }
inline void noRunInStandby() { usb.CTRLA.bit.RUNSTDBY = 0; }
// USB speed
inline void setFullSpeed() { usb.CTRLB.bit.SPDCONF = USB_DEVICE_CTRLB_SPDCONF_FS_Val; }
inline void setLowSpeed() { usb.CTRLB.bit.SPDCONF = USB_DEVICE_CTRLB_SPDCONF_LS_Val; }
inline void setHiSpeed() { usb.CTRLB.bit.SPDCONF = USB_DEVICE_CTRLB_SPDCONF_HS_Val; }
inline void setHiSpeedTestMode() { usb.CTRLB.bit.SPDCONF = USB_DEVICE_CTRLB_SPDCONF_HSTM_Val; }
// Authorize attach if Vbus is present
inline void attach() { usb.CTRLB.bit.DETACH = 0; }
inline void detach() { usb.CTRLB.bit.DETACH = 1; }
// USB Interrupts
inline bool isEndOfResetInterrupt() { return usb.INTFLAG.bit.EORST; }
inline void ackEndOfResetInterrupt() { usb.INTFLAG.reg = USB_DEVICE_INTFLAG_EORST; }
inline void enableEndOfResetInterrupt() { usb.INTENSET.bit.EORST = 1; }
inline void disableEndOfResetInterrupt() { usb.INTENCLR.bit.EORST = 1; }
inline bool isStartOfFrameInterrupt() { return usb.INTFLAG.bit.SOF; }
inline void ackStartOfFrameInterrupt() { usb.INTFLAG.reg = USB_DEVICE_INTFLAG_SOF; }
inline void enableStartOfFrameInterrupt() { usb.INTENSET.bit.SOF = 1; }
inline void disableStartOfFrameInterrupt() { usb.INTENCLR.bit.SOF = 1; }
// USB Address
inline void setAddress(uint32_t addr) { usb.DADD.bit.DADD = addr; usb.DADD.bit.ADDEN = 1; }
inline void unsetAddress() { usb.DADD.bit.DADD = 0; usb.DADD.bit.ADDEN = 0; }
// Frame number
inline uint16_t frameNumber() { return usb.FNUM.bit.FNUM; }
// Load calibration values
void calibrate();
// USB Device Endpoints function mapping
// -------------------------------------
// Config
inline void epBank0SetType(ep_t ep, uint8_t type) { usb.DeviceEndpoint[ep].EPCFG.bit.EPTYPE0 = type; }
inline void epBank1SetType(ep_t ep, uint8_t type) { usb.DeviceEndpoint[ep].EPCFG.bit.EPTYPE1 = type; }
// Interrupts
inline uint16_t epInterruptSummary() { return usb.EPINTSMRY.reg; }
inline bool epBank0IsSetupReceived(ep_t ep) { return usb.DeviceEndpoint[ep].EPINTFLAG.bit.RXSTP; }
inline bool epBank0IsStalled(ep_t ep) { return usb.DeviceEndpoint[ep].EPINTFLAG.bit.STALL0; }
inline bool epBank1IsStalled(ep_t ep) { return usb.DeviceEndpoint[ep].EPINTFLAG.bit.STALL1; }
inline bool epBank0IsTransferComplete(ep_t ep) { return usb.DeviceEndpoint[ep].EPINTFLAG.bit.TRCPT0; }
inline bool epBank1IsTransferComplete(ep_t ep) { return usb.DeviceEndpoint[ep].EPINTFLAG.bit.TRCPT1; }
inline void epBank0AckSetupReceived(ep_t ep) { usb.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_RXSTP; }
inline void epBank0AckStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_STALL(1); }
inline void epBank1AckStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_STALL(2); }
inline void epBank0AckTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRCPT(1); }
inline void epBank1AckTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTFLAG.reg = USB_DEVICE_EPINTFLAG_TRCPT(2); }
inline void epBank0EnableSetupReceived(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENSET.bit.RXSTP = 1; }
inline void epBank0EnableStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENSET.bit.STALL0 = 1; }
inline void epBank1EnableStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENSET.bit.STALL1 = 1; }
inline void epBank0EnableTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENSET.bit.TRCPT0 = 1; }
inline void epBank1EnableTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENSET.bit.TRCPT1 = 1; }
inline void epBank0DisableSetupReceived(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENCLR.bit.RXSTP = 1; }
inline void epBank0DisableStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENCLR.bit.STALL0 = 1; }
inline void epBank1DisableStalled(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENCLR.bit.STALL1 = 1; }
inline void epBank0DisableTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENCLR.bit.TRCPT0 = 1; }
inline void epBank1DisableTransferComplete(ep_t ep) { usb.DeviceEndpoint[ep].EPINTENCLR.bit.TRCPT1 = 1; }
// Status
inline bool epBank0IsReady(ep_t ep) { return usb.DeviceEndpoint[ep].EPSTATUS.bit.BK0RDY; }
inline bool epBank1IsReady(ep_t ep) { return usb.DeviceEndpoint[ep].EPSTATUS.bit.BK1RDY; }
inline void epBank0SetReady(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSSET.bit.BK0RDY = 1; }
inline void epBank1SetReady(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSSET.bit.BK1RDY = 1; }
inline void epBank0ResetReady(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSCLR.bit.BK0RDY = 1; }
inline void epBank1ResetReady(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSCLR.bit.BK1RDY = 1; }
inline void epBank0SetStallReq(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSSET.bit.STALLRQ0 = 1; }
inline void epBank1SetStallReq(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSSET.bit.STALLRQ1 = 1; }
inline void epBank0ResetStallReq(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSCLR.bit.STALLRQ0 = 1; }
inline void epBank1ResetStallReq(ep_t ep) { usb.DeviceEndpoint[ep].EPSTATUSCLR.bit.STALLRQ1 = 1; }
// Packet
inline uint16_t epBank0ByteCount(ep_t ep) { return EP[ep].DeviceDescBank[0].PCKSIZE.bit.BYTE_COUNT; }
inline uint16_t epBank1ByteCount(ep_t ep) { return EP[ep].DeviceDescBank[1].PCKSIZE.bit.BYTE_COUNT; }
inline void epBank0SetByteCount(ep_t ep, uint16_t bc) { EP[ep].DeviceDescBank[0].PCKSIZE.bit.BYTE_COUNT = bc; }
inline void epBank1SetByteCount(ep_t ep, uint16_t bc) { EP[ep].DeviceDescBank[1].PCKSIZE.bit.BYTE_COUNT = bc; }
inline void epBank0SetMultiPacketSize(ep_t ep, uint16_t s) { EP[ep].DeviceDescBank[0].PCKSIZE.bit.MULTI_PACKET_SIZE = s; }
inline void epBank1SetMultiPacketSize(ep_t ep, uint16_t s) { EP[ep].DeviceDescBank[1].PCKSIZE.bit.MULTI_PACKET_SIZE = s; }
inline void epBank0SetAddress(ep_t ep, void *addr) { EP[ep].DeviceDescBank[0].ADDR.reg = (uint32_t)addr; }
inline void epBank1SetAddress(ep_t ep, void *addr) { EP[ep].DeviceDescBank[1].ADDR.reg = (uint32_t)addr; }
inline void epBank0SetSize(ep_t ep, uint16_t size) { EP[ep].DeviceDescBank[0].PCKSIZE.bit.SIZE = EP_PCKSIZE_SIZE(size); }
inline void epBank1SetSize(ep_t ep, uint16_t size) { EP[ep].DeviceDescBank[1].PCKSIZE.bit.SIZE = EP_PCKSIZE_SIZE(size); }
inline uint8_t EP_PCKSIZE_SIZE(uint16_t size) {
switch (size) {
case 8: return 0;
case 16: return 1;
case 32: return 2;
case 64: return 3;
case 128: return 4;
case 256: return 5;
case 512: return 6;
case 1023: return 7;
default: return 0;
}
}
inline void epBank0DisableAutoZLP(ep_t ep) { EP[ep].DeviceDescBank[0].PCKSIZE.bit.AUTO_ZLP = 0; }
inline void epBank1DisableAutoZLP(ep_t ep) { EP[ep].DeviceDescBank[1].PCKSIZE.bit.AUTO_ZLP = 0; }
inline void epBank0EnableAutoZLP(ep_t ep) { EP[ep].DeviceDescBank[0].PCKSIZE.bit.AUTO_ZLP = 1; }
inline void epBank1EnableAutoZLP(ep_t ep) { EP[ep].DeviceDescBank[1].PCKSIZE.bit.AUTO_ZLP = 1; }
private:
// USB Device registers
UsbDevice &usb;
// Endpoints descriptors table
__attribute__((__aligned__(4))) UsbDeviceDescriptor EP[USB_EPT_NUM];
};
void USBDevice_SAMR21G18x::reset() {
usb.CTRLA.bit.SWRST = 1;
memset(EP, 0, sizeof(EP));
while (usb.SYNCBUSY.bit.SWRST) {}
usb.DESCADD.reg = (uint32_t)(&EP);
}
void USBDevice_SAMR21G18x::calibrate() {
// Load Pad Calibration data from non-volatile memory
uint32_t *pad_transn_p = (uint32_t *) USB_FUSES_TRANSN_ADDR;
uint32_t *pad_transp_p = (uint32_t *) USB_FUSES_TRANSP_ADDR;
uint32_t *pad_trim_p = (uint32_t *) USB_FUSES_TRIM_ADDR;
uint32_t pad_transn = (*pad_transn_p & USB_FUSES_TRANSN_Msk) >> USB_FUSES_TRANSN_Pos;
uint32_t pad_transp = (*pad_transp_p & USB_FUSES_TRANSP_Msk) >> USB_FUSES_TRANSP_Pos;
uint32_t pad_trim = (*pad_trim_p & USB_FUSES_TRIM_Msk ) >> USB_FUSES_TRIM_Pos;
if (pad_transn == 0x1F) // maximum value (31)
pad_transn = 5;
if (pad_transp == 0x1F) // maximum value (31)
pad_transp = 29;
if (pad_trim == 0x7) // maximum value (7)
pad_trim = 3;
usb.PADCAL.bit.TRANSN = pad_transn;
usb.PADCAL.bit.TRANSP = pad_transp;
usb.PADCAL.bit.TRIM = pad_trim;
}

11
cores/arduino/USB/USBCore.cpp
View file

@ -20,7 +20,12 @@
#include <Arduino.h>
#include "SAMD21_USBDevice.h"
// there are ~slight~ CMSIS differences :/
#ifdef __SAMR21G18A__
#include "SAMR21_USBDevice.h"
#else
#include "SAMD21_USBDevice.h"
#endif
#include "PluggableUSB.h"
#include <stdlib.h>
@ -28,7 +33,11 @@
#include <stdint.h>
#include <limits.h>
#ifdef __SAMR21G18A__
USBDevice_SAMR21G18x usbd;
#else
USBDevice_SAMD21G18x usbd;
#endif
/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */
#define TX_RX_LED_PULSE_MS 100

31
variants/zero_radio/debug_scripts/variant.gdb Normal file
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@ -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 at91samd21g18" -f target/at91samdXX.cfg -c "gdb_port pipe; log_output openocd.log"

211
variants/zero_radio/linker_scripts/gcc/flash_with_bootloader.ld Normal file
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@ -0,0 +1,211 @@
/*
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 :
{
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(4);
/* 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")
}

212
variants/zero_radio/linker_scripts/gcc/flash_without_bootloader.ld Normal file
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@ -0,0 +1,212 @@
/*
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 :
{
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(4);
/* 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")
}

30
variants/zero_radio/openocd_scripts/arduino_zero.cfg Normal file
View file

@ -0,0 +1,30 @@
#
# 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]
# chip name
set CHIPNAME at91samd21g18
set ENDIAN little
# choose a port here
set telnet_port 0
source [find target/at91samdXX.cfg]