Update library.properties - bump version to 1.14.2

Support running brain with rp2350 also support both F_CPU 120Mhz or 240Mhz

.github/workflows/githubci.yml

@@ -17,7 +17,12 @@ jobs:
     - uses: actions/setup-python@v4
       with:
         python-version: '3.x'
+
     - uses: actions/checkout@v3
+
+    - name: Run pre-commit
+      uses: pre-commit/action@v3.0.0
+
     - uses: actions/checkout@v3
       with:
          repository: adafruit/ci-arduino
@@ -26,12 +31,12 @@ jobs:
     - name: pre-install
       run: bash ci/actions_install.sh
 
-    - name: test platforms
-      run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}
-
     - name: clang
       run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r .
 
+    - name: test platforms
+      run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}
+
     - name: doxygen
       env:
         GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }}

.gitignore

@@ -0,0 +1,2 @@
+.idea
+.pio

.pre-commit-config.yaml

@@ -0,0 +1,25 @@
+# SPDX-FileCopyrightText: 2020 Diego Elio Pettenò
+#
+# SPDX-License-Identifier: Unlicense
+
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.4.0
+  hooks:
+  - id: check-yaml
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+
+- repo: https://github.com/pre-commit/mirrors-clang-format
+  rev: v15.0.7
+  hooks:
+  - id: clang-format
+    exclude: ^(examples/.*.ino)
+    types_or: [c++, c, header]
+
+- repo: https://github.com/codespell-project/codespell
+  rev: v2.2.4
+  hooks:
+  - id: codespell
+    exclude: ^(tools/esp_stub.py)
+    args: [-w]

examples/Brain/brain_test/brain_test.ino

@@ -1,7 +1,7 @@
 // Testing basic peripherals on Brain
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_esp32_cdc/program_esp32_cdc.ino

@@ -1,186 +0,0 @@
-// This sketch program ESP32 by flashing bin file from SD Card
-// Hardware wiring:
-// - Brain GPIO28 <-> ESP32 IO0
-// - Brain Reset  <-> ESP32 Enable
-// - Brain TX/RX  <-> ESP32 RX/TX
-
-// required for Host MSC block device
-#include "SdFat.h"
-
-// required for USB host
-#include "pio_usb.h"
-#include "Adafruit_TinyUSB.h"
-
-#include "Adafruit_TestBed_Brains.h"
-
-#define ESP32_RESET     27
-#define ESP32_IO0       28
-
-// false for ESP32 (default)
-// true for later chips such as S2, S3, H2, C3
-#define ESP32_SUPPORTS_ENCRYPTED_FLASH    true
-
-//#define ESP32_BAUDRATE  921600
-#define ESP32_BAUDRATE  115200
-
-// CDC Host object
-Adafruit_USBH_CDC  SerialHost;
-
-// Defined an boot rom object that use UART Serial1
-ESP32BootROMClass ESP32BootROM(SerialHost, ESP32_IO0, ESP32_RESET, ESP32_SUPPORTS_ENCRYPTED_FLASH);
-
-// Bin files on SDCard to program
-// These files can be found in raspi-tester (or compiled from Arduino sketch)
-#define BIN_FEATHER_ESP32S2   0
-#define BIN_FEATHER_ESP32S3   1
-
-#define BIN_FILES     BIN_FEATHER_ESP32S3 // select which bins to flash either Feather ESP32 S2 or S3
-
-struct {
-  uint32_t addr;
-  const char* fpath;
-} bin_files [] =
-{
-#if BIN_FILES == BIN_FEATHER_ESP32S2
-  { 0x1000  , "esp32s2/PID5000/esp32s2_feather_test.ino.bootloader.bin" },
-  { 0x8000  , "esp32s2/PID5000/esp32s2_feather_test.ino.partitions.bin" },
-  { 0xe000  , "esp32s2/PID5000/boot_app0.bin"                           },
-  { 0x10000 , "esp32s2/PID5000/esp32s2_feather_test.ino.bin"            },
-  { 0x2d0000, "esp32s2/PID5000/tinyuf2.bin"                             },
-#endif
-
-#if BIN_FILES == BIN_FEATHER_ESP32S3
-  { 0x0000  , "esp32s3/PID5477/esp32s3_feather_test.ino.bootloader.bin" },
-  { 0x8000  , "esp32s3/PID5477/esp32s3_feather_test.ino.partitions.bin" },
-  { 0xe000  , "esp32s3/PID5477/boot_app0.bin"                           },
-  { 0x10000 , "esp32s3/PID5477/esp32s3_feather_test.ino.bin"            },
-  { 0x2d0000, "esp32s3/PID5477/tinyuf2.bin"                             },
-#endif
-};
-
-enum {
-  BIN_FILES_COUNT = sizeof(bin_files)/sizeof(bin_files[0])
-};
-
-//--------------------------------------------------------------------+
-// Setup and Loop on Core0
-//--------------------------------------------------------------------+
-
-void prepare_sd(void) {
-  if (!Brain.SD_detected()) {
-    Brain.LCD_printf(0, "No SD Card");
-    while ( !Brain.SD_detected() ) delay(10);
-  }
-
-  if ( !Brain.SD_begin(SD_SCK_MHZ(16)) ) {
-    Brain.LCD_printf(0, "SD init failed");
-    while(1) delay(10);
-  }
-
-  Brain.LCD_printf(0, "SD mounted");
-
-  // Print out file on SD if Serial is connected
-  if (Serial) {
-    Serial.println();
-    Serial.println("SD Contents:");
-    Serial.printf("Card size = %0.1f GB\n", 0.000000512 * Brain.SD.card()->sectorCount());
-    Brain.SD.ls(LS_R | LS_DATE | LS_SIZE);
-  }
-}
-
-void print_speed(size_t count, uint32_t ms) {
-  Brain.LCD_printf(0, "%.01fKB %.01fs", count/1000.0F, ms / 1000.0F);
-
-  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
-  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
-}
-
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) delay(10);
-  Serial.println("Tester Brains: Programming ESP32 with UART!");
-
-  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
-  while (!Brain.inited()) delay(10);
-
-  // prepare SD Card
-  prepare_sd();
-
-  while ( !Brain.esp32_begin(&ESP32BootROM, ESP32_BAUDRATE) ) {
-  }
-
-  // Writing bin files
-  size_t total_bytes = 0;
-  uint32_t ms = millis();
-  for(size_t i=0; i<BIN_FILES_COUNT; i++) {
-    Brain.LCD_printf("Flashing file %u", i);
-    size_t wr_count = Brain.essp32_programFlash(bin_files[i].fpath, bin_files[i].addr);
-    total_bytes += wr_count;
-    if (!wr_count) {
-      Brain.LCD_printf_error("Failed to flash");
-    }
-  }
-  print_speed(total_bytes, millis() - ms);
-
-  Brain.esp32_end();
-
-  // reset ESP32 to run new firmware
-  Brain.targetReset();
-}
-
-void loop() {
-}
-
-//--------------------------------------------------------------------+
-// Setup and Loop on Core1
-//--------------------------------------------------------------------+
-
-// call usbh_begin() here to make pio usb background task run on core1
-// NOTE: Brain.begin() should be called here as well to prevent race condition
-void setup1() {
-  Brain.begin();
-  Brain.usbh_begin();
-
-  // Since we only support 1 CDC interface with Tester (also CFG_TUH_CDC = 1)
-  // the index will always be 0 for SerialHost
-  // SerialHost.setInterfaceIndex(0);
-  SerialHost.begin(115200);
-
-  Brain.LCD_printf(0, "No USB attached");
-  Brain.LCD_printf(1, "Plug your device");
-}
-
-// core1's loop: process usb host task on core1
-void loop1() {
-  Brain.USBHost.task();
-
-  // periodically flush SerialHost if connected
-  if ( SerialHost && SerialHost.connected() ) {
-    SerialHost.flush();
-  }
-}
-
-//--------------------------------------------------------------------+
-// TinyUSB Host callbacks
-// Note: running in the same core where Brain.USBHost.task() is called
-//--------------------------------------------------------------------+
-extern "C"  {
-
-// Invoked when device is mounted (configured)
-void tuh_mount_cb (uint8_t daddr)
-{
-  uint16_t vid, pid;
-  tuh_vid_pid_get(daddr, &vid, &pid);
-
-  Serial.printf("Device attached, address = %d\r\n", daddr);
-  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
-}
-
-/// Invoked when device is unmounted (bus reset/unplugged)
-void tuh_umount_cb(uint8_t dev_addr)
-{
-  (void) dev_addr;
-  Brain.LCD_printf(1, "No USB Device");
-}
-
-}

examples/Brain/program_esp32_uart/program_esp32_uart.ino

@@ -1,155 +0,0 @@
-// This sketch program ESP32 by flashing bin file from SD Card
-// Hardware wiring:
-// - Brain GPIO28 <-> ESP32 IO0
-// - Brain Reset  <-> ESP32 Enable
-// - Brain TX/RX  <-> ESP32 RX/TX
-
-// required for Host MSC block device
-#include "SdFat.h"
-
-// required for USB host
-#include "pio_usb.h"
-#include "Adafruit_TinyUSB.h"
-
-#include "Adafruit_TestBed_Brains.h"
-
-#define ESP32_RESET     27
-#define ESP32_IO0       28
-
-// false for ESP32 (default)
-// true for later chips such as S2, S3, H2, C3
-#define ESP32_SUPPORTS_ENCRYPTED_FLASH    false
-
-#define ESP32_BAUDRATE  921600
-// #define ESP32_BAUDRATE  115200
-
-// Bin files on SDCard to program
-// These files can be generated by any of Arduino sketches
-// The example use WiFiAccessPoint sketch, which we can verify its running image
-// by simply scan for existence of ssid "YourAP"
-struct {
-  uint32_t addr;
-  const char* fpath;
-} bin_files [] = {
-  { 0x1000  , "esp32/WiFiAccessPoint/WiFiAccessPoint.ino.bootloader.bin" },
-  { 0x8000  , "esp32/WiFiAccessPoint/WiFiAccessPoint.ino.partitions.bin" },
-  { 0xe000  , "esp32/WiFiAccessPoint/boot_app0.bin"                      },
-  { 0x10000 , "esp32/WiFiAccessPoint/WiFiAccessPoint.ino.bin"            },
-};
-
-enum {
-  BIN_FILES_COUNT = sizeof(bin_files)/sizeof(bin_files[0])
-};
-
-// Defined an boot rom object that use UART Serial1
-ESP32BootROMClass ESP32BootROM(Serial1, ESP32_IO0, ESP32_RESET, ESP32_SUPPORTS_ENCRYPTED_FLASH);
-
-//--------------------------------------------------------------------+
-// Setup and Loop on Core0
-//--------------------------------------------------------------------+
-
-void prepare_sd(void) {
-  if (!Brain.SD_detected()) {
-    Brain.LCD_printf(0, "No SD Card");
-    while ( !Brain.SD_detected() ) delay(10);
-  }
-
-  if ( !Brain.SD_begin(SD_SCK_MHZ(16)) ) {
-    Brain.LCD_printf(0, "SD init failed");
-    while(1) delay(10);
-  }
-
-  Brain.LCD_printf(0, "SD mounted");
-
-  // Print out file on SD if Serial is connected
-  if (Serial) {
-    Serial.println();
-    Serial.println("SD Contents:");
-    Serial.printf("Card size = %0.1f GB\n", 0.000000512 * Brain.SD.card()->sectorCount());
-    Brain.SD.ls(LS_R | LS_DATE | LS_SIZE);
-  }
-}
-
-void print_speed(size_t count, uint32_t ms) {
-  Brain.LCD_printf(0, "%.01fKB %.01fs", count/1000.0F, ms / 1000.0F);
-
-  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
-  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
-}
-
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) delay(10);
-  Serial.println("Tester Brains: Programming ESP32 with UART!");
-
-  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
-  while (!Brain.inited()) delay(10);
-
-  // prepare SD Card
-  prepare_sd();
-
-  while ( !Brain.esp32_begin(&ESP32BootROM, ESP32_BAUDRATE) ) {
-    // retry syncing
-    delay(1000);
-  }
-
-  // Writing bin files
-  size_t total_bytes = 0;
-  uint32_t ms = millis();
-  for(size_t i=0; i<BIN_FILES_COUNT; i++) {
-    Brain.LCD_printf("Flashing file %u", i);
-    size_t wr_count = Brain.essp32_programFlash(bin_files[i].fpath, bin_files[i].addr);
-    total_bytes += wr_count;
-    if (!wr_count) {
-      Brain.LCD_printf_error("Failed to flash");
-    }
-  }
-  print_speed(total_bytes, millis() - ms);
-
-  Brain.esp32_end();
-
-  // reset ESP32 to run new firmware
-  Brain.targetReset();
-}
-
-void loop() {
-}
-
-//--------------------------------------------------------------------+
-// Setup and Loop on Core1
-//--------------------------------------------------------------------+
-
-// call usbh_begin() here to make pio usb background task run on core1
-// NOTE: Brain.begin() should be called here as well to prevent race condition
-void setup1() {
-  Brain.begin();
-  Brain.usbh_begin();
-
-  Brain.LCD_printf(1, "No USB Device");
-}
-
-// core1's loop: process usb host task on core1
-void loop1() {
-  Brain.USBHost.task();
-}
-
-//--------------------------------------------------------------------+
-// TinyUSB Host callbacks
-// Note: running in the same core where Brain.USBHost.task() is called
-//--------------------------------------------------------------------+
-extern "C"  {
-
-// Invoked when device is mounted (configured)
-void tuh_mount_cb (uint8_t dev_addr)
-{
-  (void) dev_addr;
-}
-
-/// Invoked when device is unmounted (bus reset/unplugged)
-void tuh_umount_cb(uint8_t dev_addr)
-{
-  (void) dev_addr;
-  Brain.LCD_printf(1, "No USB Device");
-}
-
-}

examples/Brain/program_esp_cdc/esp_binaries.h

@@ -0,0 +1,151 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Ha Thach (tinyusb.org) for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef ESP_BINARIES_H_
+#define ESP_BINARIES_H_
+
+// Configuration: select which bins to flash
+#define BIN_FILES BIN_C6_BLINK_IO8
+
+//--------------------------------------------------------------------+
+// LIST OF BINARIES
+//--------------------------------------------------------------------+
+
+#define BIN_ESP32_NINA_1_7_4 0        // nina 1.7.4
+#define BIN_ESP32_WIFI_AP_SKETCH 1    // esp32 AP with ssdi "YourAP"
+#define BIN_FEATHER_ESP32_V2_BLINKY 2 // Feather esp32 v2 blinky sketch
+
+#define BIN_FEATHER_S2 10 // Feather esp32s2 factory firmware
+#define BIN_FEATHER_S3 11 // Feather esp32s3 factory firmware
+#define BIN_METRO_S2 12   // Metro esp32s2 factory firmware
+
+#define BIN_DEVKIT_S2 20 // Espressif s2 devkit
+#define BIN_DEVKIT_S3 21 // Espressif s3 devkit
+
+#define BIN_FEATHER_8266_BLINKY 30 // Feather esp8266 blinky sketch
+
+#define BIN_C6_BLINK_IO8 40 // Blink sketch for C6 with LED on IO8
+
+//--------------------------------------------------------------------+
+// Binaries include
+//--------------------------------------------------------------------+
+
+#if BIN_FILES == BIN_ESP32_WIFI_AP_SKETCH
+#include "esp_binaries/wifi_ap_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_ESP32_V2_BLINKY
+#include "esp_binaries/feather_esp32_v2_blinky_binaries.h"
+
+#elif BIN_FILES == BIN_NINA_1_7_4
+#include "esp_binaries/nina_1_7_4_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_S2
+#include "esp_binaries/feather_esp32s2_binaries.h"
+
+#elif BIN_FILES == BIN_METRO_S2
+#include "esp_binaries/metro_esp32s2_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_S3
+#include "esp_binaries/feather_esp32s3_binaries.h"
+
+#elif BIN_FILES == BIN_DEVKIT_S2
+#include "esp_binaries/esp32s2_devkit_binaries.h"
+
+#elif BIN_FILES == BIN_DEVKIT_S3
+#include "esp_binaries/esp32s3_devkit_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_8266_BLINKY
+#include "esp_binaries/feather_esp8266_blinky.h"
+
+#elif BIN_FILES == BIN_C6_BLINK_IO8
+#include "esp_binaries/c6_blink_io8.h"
+
+#else
+#error "Please select BIN_FILES in esp_binaries.h"
+
+#endif
+
+struct {
+  uint32_t addr;
+  esp32_zipfile_t const *zfile;
+} bin_files[] = {
+#if BIN_FILES == BIN_NINA_1_7_4
+    {0x00000, &NINA_W102_1_7_4},
+
+#elif BIN_FILES == BIN_FEATHER_ESP32_V2_BLINKY
+    {0x1000, &feather_esp32v2_blinky_bootloader},
+    {0x8000, &feather_esp32v2_blinky_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &feather_esp32v2_blinky},
+
+#elif BIN_FILES == BIN_FEATHER_S2
+    {0x1000, &esp32s2_feather_test_ino_bootloader},
+    {0x8000, &esp32s2_feather_test_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &esp32s2_feather_test_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_METRO_S2
+    {0x1000, &selftest_ino_bootloader},
+    {0x8000, &selftest_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &selftest_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_FEATHER_S3
+    {0x0000, &esp32s3_feather_test_ino_bootloader},
+    {0x8000, &esp32s3_feather_test_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &esp32s3_feather_test_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_DEVKIT_S2
+    {0x1000, &Blink_ino_bootloader},
+    {0x8000, &Blink_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &Blink_ino},
+
+#elif BIN_FILES == BIN_DEVKIT_S3
+    {0x0000, &Blink_ino_bootloader},
+    {0x8000, &Blink_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &Blink_ino},
+
+#elif BIN_FILES == BIN_FEATHER_8266_BLINKY
+    {0x0000, &Blink_ino},
+
+#elif BIN_FILES == BIN_C6_BLINK_IO8
+    {0x00000, &c6_blink_io8_bootloader},
+    {0x8000, &c6_blink_io8_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &c6_blink_io8},
+
+#else
+#error "Please select BIN_FILES in esp_binaries.h"
+#endif
+};
+
+enum { BIN_FILES_COUNT = sizeof(bin_files) / sizeof(bin_files[0]) };
+
+#endif

examples/Brain/program_esp_cdc/program_esp_cdc.ino

@@ -0,0 +1,181 @@
+// This sketch program ESP32 by flashing bin file via Serial Host.
+// Hardware wiring is a bit different between S2/S3 and ESP32 + USB-to-UART chip
+//   For S2/S3 with native USB
+//   - Brain GPIO28   <-> ESP32 IO0
+//   - Brain Reset    <-> ESP32 Enable
+//   - Brain USB Host <-> ESP32 native usb
+//   For ESP32 with USB-to-UART chip
+//   - Brain USB Host <-> ESP32 native usb
+//   - There is no need to connect IO0/Reset since we will use DTR/RTS to reset ESP32
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// Change BIN_FILES in esp_binaries.h header to select which binaries to flash
+// bin_files[] is defined accordingly
+#include "esp_binaries.h"
+
+// 1 if programming ESP32-S2/S3 via native USB
+// 0 if programming ESP32/8266 via USB-to-UART chip such as FTDI/CP210x/CH9102f
+#define ESP32_NATIVE_USB 1
+
+#define ESP32_RESET     27
+#define ESP32_IO0       28
+
+// Note: baudrate does not matter if programming S2/S3 native USB
+// But does matter if programming ESP32/8266 via USB-to-UART chip
+#define ESP32_BAUDRATE  (115200*8)
+
+// CDC Host object
+Adafruit_USBH_CDC SerialHost;
+
+#if ESP32_NATIVE_USB
+  // Declare BootROM with IO0 and Reset will use GPIO for bootloader reset
+  // This is typically for programming ESP32-S2/S3 via native USB
+  ESP32BootROMClass ESP32BootROM(SerialHost, ESP32_IO0, ESP32_RESET);
+#else
+  // Defined an boot rom object that use SerialHost
+  // Declare BootROM without IO0 and Reset will use SerialHost.setDtrRts() for bootloader reset
+  // This is for programming ESP32/8266 via USB-to-UART chip such as FTDI/CP210x/CH9102f
+  ESP32BootROMClass ESP32BootROM(SerialHost);
+#endif
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+void print_speed(size_t count, uint32_t ms) {
+  float count_k = count / 1000.0F;
+  float sec = ms / 1000.0F;
+  float speed = count_k / sec;
+  Brain.LCD_printf(0, "%.01fKB %.01fs", count_k, sec);
+  Brain.LCD_printf(1, "Spd: %.01f KB/s", speed);
+}
+
+// Reset using DTR/RTS
+void reset_with_dtr_rts(uint32_t ms) {
+  SerialHost.setDtrRts(false, true);
+  delay(ms);
+  SerialHost.setDtrRts(false, false);
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Tester Brains: Programming ESP32 with SerialHost!");
+
+  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.inited()) delay(10);
+
+  while (!Brain.esp32_begin(&ESP32BootROM, ESP32_BAUDRATE)) {
+    delay(100);
+  }
+
+  // Writing bin files
+  size_t total_bytes = 0;
+  uint32_t ms = millis();
+  for (size_t i = 0; i < BIN_FILES_COUNT; i++) {
+    Brain.LCD_printf("Flashing file %u", i);
+    Serial.printf("File %s\r\n", bin_files[i].zfile->name);
+    size_t wr_count = Brain.esp32_programFlashDefl(bin_files[i].zfile, bin_files[i].addr);
+    total_bytes += wr_count;
+    if (!wr_count) {
+      Brain.LCD_printf_error("Failed to flash");
+    }
+  }
+  print_speed(total_bytes, millis() - ms);
+
+  Brain.esp32_end();
+
+  // reset ESP32 to run new firmware
+  Brain.targetReset(); // reset using Reset pin GPIO27
+
+  // Reset using DTR if GPIO27 is not connected
+  reset_with_dtr_rts(20);
+}
+
+void loop() {
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+
+  // Since we only support 1 CDC interface with Tester (also CFG_TUH_CDC = 1)
+  // the index will always be 0 for SerialHost
+  SerialHost.begin(115200);
+
+  Brain.LCD_printf(0, "No USB attached");
+  Brain.LCD_printf(1, "Plug your device");
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  if (Brain.esp32_s3_inReset()) {
+    // Note: S3 has an USB-OTG errata
+    // https://www.espressif.com/sites/default/files/documentation/esp32-s3_errata_en.pdf
+    // which is walkarounded by idf/arduino-esp32 to always mux JTAG to USB for
+    // uploading and/or power on. Afterwards USB-OTG will be set up if selected
+    // so. However rp2040 USBH is running too fast and can actually retrieve
+    // device/configuration descriptor of JTAG before the OTG is fully setup.
+    // We delay a bit here
+    delay(500);
+
+    Brain.esp32_s3_clearReset();
+  }
+
+  Brain.USBHost.task();
+
+  // periodically flush SerialHost if connected
+  if (SerialHost && SerialHost.connected()) {
+    SerialHost.flush();
+  }
+
+  yield();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+extern "C" {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t daddr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(daddr, &vid, &pid);
+
+  Serial.printf("Device attached, address = %d\r\n", daddr);
+  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr) {
+  (void) dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+// Invoked when a device with CDC interface is mounted
+// idx is index of cdc interface in the internal pool.
+void tuh_cdc_mount_cb(uint8_t idx) {
+  // bind SerialHost object to this interface index
+  SerialHost.mount(idx);
+}
+
+// Invoked when a device with CDC interface is unmounted
+void tuh_cdc_umount_cb(uint8_t idx) {
+  // unbind SerialHost if this interface is unmounted
+  SerialHost.umount(idx);
+}
+}

examples/Brain/program_esp_uart/esp_binaries.h

@@ -0,0 +1,142 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Ha Thach (tinyusb.org) for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef ESP_BINARIES_H_
+#define ESP_BINARIES_H_
+
+// Configuration: select which bins to flash
+#define BIN_FILES BIN_C6_BLINK_IO8
+
+//--------------------------------------------------------------------+
+// LIST OF BINARIES
+//--------------------------------------------------------------------+
+
+#define BIN_ESP32_NINA_1_7_4 0     // nina 1.7.4
+#define BIN_ESP32_WIFI_AP_SKETCH 1 // esp32 AP with ssdi "YourAP"
+
+#define BIN_FEATHER_S2 10 // Feather esp32s2 factory firmware
+#define BIN_FEATHER_S3 11 // Feather esp32s3 factory firmware
+#define BIN_METRO_S2 12   // Metro esp32s2 factory firmware
+
+#define BIN_DEVKIT_S2 20 // Espressif s2 devkit
+#define BIN_DEVKIT_S3 21 // Espressif s3 devkit
+
+#define BIN_ESP8266 30 // Espressif esp8266
+
+#define BIN_C6_BLINK_IO8 40 // Blink sketch for C6 with LED on IO8
+
+//--------------------------------------------------------------------+
+// Binaries include
+//--------------------------------------------------------------------+
+
+#if BIN_FILES == BIN_ESP32_WIFI_AP_SKETCH
+#include "esp_binaries/wifi_ap_binaries.h"
+
+#elif BIN_FILES == BIN_NINA_1_7_4
+#include "esp_binaries/nina_1_7_4_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_S2
+#include "esp_binaries/feather_esp32s2_binaries.h"
+
+#elif BIN_FILES == BIN_METRO_S2
+#include "esp_binaries/metro_esp32s2_binaries.h"
+
+#elif BIN_FILES == BIN_FEATHER_S3
+#include "esp_binaries/feather_esp32s3_binaries.h"
+
+#elif BIN_FILES == BIN_DEVKIT_S2
+#include "esp_binaries/esp32s2_devkit_binaries.h"
+
+#elif BIN_FILES == BIN_DEVKIT_S3
+#include "esp_binaries/esp32s3_devkit_binaries.h"
+
+#elif BIN_FILES == BIN_ESP8266
+#include "esp_binaries/esp8266_binaries.h"
+
+#elif BIN_FILES == BIN_C6_BLINK_IO8
+#include "esp_binaries/c6_blink_io8.h"
+
+#else
+#error "Please select BIN_FILES in esp_binaries.h"
+
+#endif
+
+struct {
+  uint32_t addr;
+  esp32_zipfile_t const *zfile;
+} bin_files[] = {
+#if BIN_FILES == BIN_NINA_1_7_4
+    {0x00000, &NINA_W102_1_7_4},
+
+#elif BIN_FILES == BIN_FEATHER_S2
+    {0x1000, &esp32s2_feather_test_ino_bootloader},
+    {0x8000, &esp32s2_feather_test_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &esp32s2_feather_test_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_METRO_S2
+    {0x1000, &selftest_ino_bootloader},
+    {0x8000, &selftest_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &selftest_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_FEATHER_S3
+    {0x0000, &esp32s3_feather_test_ino_bootloader},
+    {0x8000, &esp32s3_feather_test_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &esp32s3_feather_test_ino},
+    {0x2d0000, &tinyuf2},
+
+#elif BIN_FILES == BIN_DEVKIT_S2
+    {0x1000, &Blink_ino_bootloader},
+    {0x8000, &Blink_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &Blink_ino},
+
+#elif BIN_FILES == BIN_DEVKIT_S3
+    {0x0000, &Blink_ino_bootloader},
+    {0x8000, &Blink_ino_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &Blink_ino},
+
+#elif BIN_FILES == BIN_ESP8266
+    {0x00000, &esp8266_blink_io0},
+
+#elif BIN_FILES == BIN_C6_BLINK_IO8
+    {0x00000, &c6_blink_io8_bootloader},
+    {0x8000, &c6_blink_io8_partitions},
+    {0xe000, &boot_app0},
+    {0x10000, &c6_blink_io8},
+
+#else
+#error "Please select BIN_FILES in esp_binaries.h"
+#endif
+
+};
+
+enum { BIN_FILES_COUNT = sizeof(bin_files) / sizeof(bin_files[0]) };
+
+#endif

examples/Brain/program_esp_uart/program_esp_uart.ino

@@ -0,0 +1,134 @@
+// This sketch program ESP32 by flashing bin file from on-flash (with .h header)
+// Supported/tested ESP MCU are: ESP32, ESP32-S2, ESP32-S3, ESP8266
+// Hardware wiring:
+// - Brain GPIO28 <-> ESP32 IO0
+// - Brain Reset  <-> ESP32 Enable
+// - Brain TX/RX  <-> ESP32 RX/TX
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// Change BIN_FILES in esp_binaries.h header to select which binaries to flash
+// bin_files[] is defined accordingly
+#include "esp_binaries.h"
+
+#define ESP32_RESET     27
+#define ESP32_IO0       28
+
+#define ESP32_BAUDRATE  2000000
+//#define ESP32_BAUDRATE  1500000
+//#define ESP32_BAUDRATE  921600
+//#define ESP32_BAUDRATE  115200
+
+
+// Defined an boot rom object that use UART Serial1
+ESP32BootROMClass ESP32BootROM(Serial1, ESP32_IO0, ESP32_RESET);
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+
+void print_speed(size_t count, uint32_t ms) {
+  float count_k = count / 1000.0F;
+  float sec = ms / 1000.0F;
+  float speed = count_k / sec;
+  Brain.LCD_printf(0, "%.01fKB %.01fs", count_k, sec);
+  Brain.LCD_printf(1, "Spd: %.01f KB/s", speed);
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Tester Brains: Programming ESP with UART!");
+
+  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.inited()) delay(10);
+  while (!Brain.esp32_begin(&ESP32BootROM, ESP32_BAUDRATE)) {
+    // retry syncing
+    delay(100);
+  }
+
+  // Writing bin files
+  size_t total_bytes = 0;
+  uint32_t ms = millis();
+  for (size_t i = 0; i < BIN_FILES_COUNT; i++) {
+    Brain.LCD_printf(0, "Flashing file %u", i);
+    Serial.printf("File: %s\r\n", bin_files[i].zfile->name);
+    size_t wr_count = Brain.esp32_programFlashDefl(bin_files[i].zfile, bin_files[i].addr);
+    total_bytes += wr_count;
+    if (!wr_count) {
+      Brain.LCD_printf_error("Failed to flash");
+    }
+  }
+  print_speed(total_bytes, millis() - ms);
+
+  Brain.esp32_end();
+
+  // reset ESP32 to run new firmware
+  Brain.targetReset();
+}
+
+void loop() {
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+
+  Brain.LCD_printf(0, "No USB attached");
+  Brain.LCD_printf(1, "Plug your device");
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  if (Brain.esp32_s3_inReset()) {
+    // Note: S3 has an USB-OTG errata
+    // https://www.espressif.com/sites/default/files/documentation/esp32-s3_errata_en.pdf
+    // which is walkarounded by idf/arduino-esp32 to always mux JTAG to USB for
+    // uploading and/or power on. Afterwards USB-OTG will be set up if selected
+    // so. However rp2040 USBH is running too fast and can actually retrieve
+    // device/configuration descriptor of JTAG before the OTG is fully setup.
+    // We delay a bit here
+    delay(500);
+
+    Brain.esp32_s3_clearReset();
+  }
+
+  Brain.USBHost.task();
+  yield();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+extern "C" {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t daddr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(daddr, &vid, &pid);
+
+  Serial.printf("Device attached, address = %d\r\n", daddr);
+  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr) {
+  (void) dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+}

examples/Brain/program_nrf52840/program_nrf52840.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"
@@ -17,11 +17,7 @@
 
 #include "Adafruit_TestBed_Brains.h"
 
-// RP2040 Boot VID/PID
-#define BOOT_VID   0x2e8a
-#define BOOT_PID   0x0003
-
-// file path on SDCard to prograom
+// file path on SDCard to program
 #define TEST_FILE_PATH "nrf/feather_nrf52840/bleblink.bin"
 
 // DAP interface for nRF5x
@@ -66,8 +62,10 @@ void setup() {
   // erase chip before programming
   Brain.dap_eraseChip();
 
+  // for nrf52840 don't use crc32 as it is not supported.
+  // Note: verify is with reading back increase programming time by 2x
   uint32_t ms = millis();
-  size_t copied_bytes = Brain.dap_programFlash(TEST_FILE_PATH, 0);
+  size_t copied_bytes = Brain.dap_programFlash(TEST_FILE_PATH, 0, true, false);
   ms = millis() - ms;
   print_speed(copied_bytes, ms);
 
@@ -110,9 +108,7 @@ void tuh_mount_cb (uint8_t dev_addr)
   uint16_t vid, pid;
   tuh_vid_pid_get(dev_addr, &vid, &pid);
 
-  if ( !(vid == BOOT_VID && pid == BOOT_PID) ) {
-    Brain.LCD_printf(1, "UnkDev %04x:%04x", vid, pid);
-  }
+  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
 }
 
 /// Invoked when device is unmounted (bus reset/unplugged)

examples/Brain/program_nrf52840_from_sdcard/program_nrf52840_from_sdcard.ino

@@ -0,0 +1,121 @@
+// This sketch program SAMD with bin file from SDCard using Adafruit_DAP
+// Hardware wiring:
+// - Brain's header Reset <-> Target Reset
+// - Brain's header SWDIO <-> Target SWDIO
+// - Brain's header SWCLK <-> Target SWCLK
+// - Brain's USB host to Target USB
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+// required for DAP programming
+#include "Adafruit_DAP.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// file path on SDCard to program
+#define TEST_FILE_PATH "nrf/feather_nrf52840/bleblink.bin"
+
+// DAP interface for nRF5x
+Adafruit_DAP_nRF5x dap;
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+
+void print_speed(size_t count, uint32_t ms) {
+  Brain.LCD_printf(0, "%.01fKB in %.01fs", count/1000.0F, ms / 1000.0F);
+
+  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
+  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Tester Brains: nRF52840 programming !");
+
+  // sync: wait for Brain.usbh_begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.usbh_inited()) delay(10);
+
+  Brain.SD_begin(SD_SCK_MHZ(16));
+
+  // Print out file on SD if Serial is connected
+  if (Serial) {
+    Serial.println();
+    Serial.println("SD Contents:");
+    Serial.printf("Card size = %0.1f GB\n", 0.000000512 * Brain.SD.card()->sectorCount());
+    Brain.SD.ls(LS_R | LS_SIZE);
+  }
+
+  Brain.targetReset();
+
+  Brain.dap_begin(&dap);
+  Brain.dap_connect();
+
+  Brain.dap_unprotectBoot();
+
+  // erase chip before programming
+  Brain.dap_eraseChip();
+
+  // for nrf52840 don't use crc32 as it is not supported.
+  // Note: verify is with reading back increase programming time by 2x
+  uint32_t ms = millis();
+  size_t copied_bytes = Brain.dap_programFlash(TEST_FILE_PATH, 0, true, false);
+  ms = millis() - ms;
+  print_speed(copied_bytes, ms);
+
+  Brain.dap_protectBoot();
+  Brain.dap_disconnect();
+
+  Brain.targetReset();
+
+}
+
+void loop() {
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  Brain.USBHost.task();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+extern "C"  {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb (uint8_t dev_addr)
+{
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr)
+{
+  (void) dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+}

examples/Brain/program_rp2/program_rp2.ino

@@ -0,0 +1,135 @@
+// This sketch program rp2040 by copying UF2 file from SDCard to
+// rp2040 bootrom
+// Hardware wiring:
+// - Brain's Target GPIO28 to RP2 bootsel
+// - Brain's Target Reset to RP2 Reset
+// - Brain's USB host to RP2040 USB interface
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// firmware.h is converted using tools/file2carray.py e.g
+//   python tools/file2carray.py cdc_msc.uf2
+// above command will generate cdc_msc.uf2.h with bindata, bindata_len
+#include "metro_rp2350_cdc_msc.uf2.h"
+
+// RP2040 Boot VID/PID
+#define BOOT_VID   0x2e8a
+#define BOOT_PID_RP2040   0x0003
+#define BOOT_PID_RP2350   0x000f
+
+// If USB filesystem is mounted
+volatile bool is_usbfs_mounted = false;
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+void print_speed(size_t count, uint32_t ms) {
+  Brain.LCD_printf(0, "%.01fKB %.01fs", count/1000.0F, ms / 1000.0F);
+
+  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
+  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Program RP2 by copy UF2 from Internal Flash to Bootloader!");
+
+  // sync: wait for Brain.begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.inited()) delay(10);
+
+  // wait for USB filesystem is mounted. USB host bit-banging and task is
+  // processed on core1
+  while (!is_usbfs_mounted) delay(10);
+
+  // Copy UF2 file
+  Brain.LCD_printf(0, "Copying firmware");
+  Serial.println("Copying UF2 from Flash to USBHFS");
+
+  uint32_t ms = millis();
+  size_t copied_bytes = Brain.rp2_programUF2(bindata, bindata_len);
+  print_speed(copied_bytes, millis() - ms);
+
+  // wait for rp2040 boot rom to reset
+  // while (is_usbfs_mounted) delay(10);
+}
+
+void loop() {
+  Serial.flush();
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+
+  Brain.LCD_printf(1, "No USB Device");
+
+  // reset rp2040 target into Boot Rom, default bootsel = 28, reset duration = 10 ms
+  Brain.rp2_targetResetBootRom();
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  Brain.USBHost.task();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+bool is_rp2_bootloader(uint16_t vid, uint16_t pid) {
+  return (vid == BOOT_VID && (pid == BOOT_PID_RP2040 || pid == BOOT_PID_RP2350));
+}
+
+extern "C"  {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb(uint8_t dev_addr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  if (!is_rp2_bootloader(vid, pid)) {
+    Brain.LCD_printf(1, "UnkDev %04x:%04x", vid, pid);
+  }
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr) {
+  (void)dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+// Invoked when a device with MassStorage interface is mounted
+void tuh_msc_mount_cb(uint8_t dev_addr) {
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  if (is_rp2_bootloader(vid, pid)) {
+    is_usbfs_mounted = Brain.usbh_mountFS(dev_addr);
+    if (is_usbfs_mounted) {
+      uint16_t rp2variant = (pid == BOOT_PID_RP2040 ? 2040 : 2350);
+      Brain.LCD_printf(1, "RP%u Bootldr", rp2variant);
+    }
+  }
+}
+
+// Invoked when a device with MassStorage interface is unmounted
+void tuh_msc_umount_cb(uint8_t dev_addr) {
+  is_usbfs_mounted = false;
+  Brain.usbh_umountFS(dev_addr);
+}
+
+}

examples/Brain/program_rp2_from_sdcard/program_rp2_from_sdcard.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to RP2040 USB interface
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"
@@ -60,11 +60,6 @@ void print_speed(size_t count, uint32_t ms) {
 }
 
 void setup() {
-  // For debugging tinyusb
-  if (CFG_TUSB_DEBUG) {
-    Serial1.begin(115200);
-  }
-
   Serial.begin(115200);
   while (!Serial) delay(10);
   Serial.println("Tester Brains: UF2 copy from SD to USBH FS test!");
@@ -75,7 +70,7 @@ void setup() {
   // prepare SD Card
   prepare_sd();
 
-  // wait for USB filesytem is mounted. USB host bit-banging and task is
+  // wait for USB filesystem is mounted. USB host bit-banging and task is
   // processed on core1
   while (!is_usbfs_mounted) delay(10);
 
@@ -84,7 +79,7 @@ void setup() {
   Serial.println("Copying from SD to USBHFS: " UF2_FILE_PATH);
 
   uint32_t ms = millis();
-  size_t copied_bytes = Brain.rp2040_programUF2(UF2_FILE_PATH);
+  size_t copied_bytes = Brain.rp2_programUF2(UF2_FILE_PATH);
 
   print_speed(copied_bytes, millis() - ms);
 
@@ -93,6 +88,7 @@ void setup() {
 }
 
 void loop() {
+  Serial.flush();
 }
 
 //--------------------------------------------------------------------+
@@ -108,7 +104,7 @@ void setup1() {
   Brain.LCD_printf(1, "No USB Device");
 
   // reset rp2040 target into Boot Rom, default bootsel = 28, reset duration = 10 ms
-  Brain.rp2040_targetResetBootRom();
+  Brain.rp2_targetResetBootRom();
 }
 
 // core1's loop: process usb host task on core1

examples/Brain/program_samd21/program_samd21.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_samd51/program_samd51.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/program_stm32f405/program_stm32f405.ino

@@ -6,7 +6,7 @@
 // - Brain's USB host to Target USB
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"

examples/Brain/read_nrf52840_to_sdcard/read_nrf52840_to_sdcard.ino

@@ -0,0 +1,112 @@
+// This sketch program SAMD with bin file from SDCard using Adafruit_DAP
+// Hardware wiring:
+// - Brain's header Reset <-> Target Reset
+// - Brain's header SWDIO <-> Target SWDIO
+// - Brain's header SWCLK <-> Target SWCLK
+// - Brain's USB host to Target USB
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+// required for DAP programming
+#include "Adafruit_DAP.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+// file path on SDCard to hold nrf52840 binary
+#define READ_FILE_PATH "nrf/readback.bin"
+#define READ_SIZE (1024u*1024u) // 1 MB
+
+// DAP interface for nRF5x
+Adafruit_DAP_nRF5x dap;
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+
+void print_speed(size_t count, uint32_t ms) {
+  Brain.LCD_printf(0, "%.01fKB in %.01fs", count/1000.0F, ms / 1000.0F);
+
+  Serial.printf("Completed %u bytes in %.02f seconds.\r\n", count, ms / 1000.0F);
+  Serial.printf("Speed : %.02f KB/s\r\n", (count / 1000.0F) / (ms / 1000.0F));
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("Tester Brains: Reading nRF52840 to SD Card!");
+
+  // sync: wait for Brain.usbh_begin() called in core1 before accessing SD or other peripherals
+  while (!Brain.usbh_inited()) delay(10);
+
+  Brain.SD_begin(SD_SCK_MHZ(16));
+
+  // Print out file on SD if Serial is connected
+  if (Serial) {
+    Serial.println();
+    Serial.println("SD Contents:");
+    Serial.printf("Card size = %0.1f GB\n", 0.000000512 * Brain.SD.card()->sectorCount());
+    Brain.SD.ls(LS_R | LS_SIZE);
+  }
+
+  Brain.targetReset();
+  Brain.dap_begin(&dap);
+  Brain.dap_connect();
+
+  uint32_t ms = millis();
+  size_t nbytes = Brain.dap_readFlash(READ_FILE_PATH, 0, READ_SIZE);
+  ms = millis() - ms;
+  print_speed(nbytes, ms);
+
+  Brain.dap_disconnect();
+  Brain.targetReset();
+
+}
+
+void loop() {
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() here to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Brain.begin();
+  Brain.usbh_begin();
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+// core1's loop: process usb host task on core1
+void loop1() {
+  Brain.USBHost.task();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+// Note: running in the same core where Brain.USBHost.task() is called
+//--------------------------------------------------------------------+
+extern "C"  {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb (uint8_t dev_addr)
+{
+  uint16_t vid, pid;
+  tuh_vid_pid_get(dev_addr, &vid, &pid);
+
+  Brain.LCD_printf("USBID %04x:%04x", vid, pid);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t dev_addr)
+{
+  (void) dev_addr;
+  Brain.LCD_printf(1, "No USB Device");
+}
+
+}

examples/Brain/usbh_hub_test/usbh_hub_test.ino

@@ -0,0 +1,115 @@
+// Testing USB host hardware on Brain by printing out VID/PID of attached device
+// to LCD. Also determine if device support MSC or HID
+
+// required for Host MSC block device
+#include "SdFat_Adafruit_Fork.h"
+
+// required for USB host
+#include "pio_usb.h"
+#include "Adafruit_TinyUSB.h"
+
+#include "Adafruit_TestBed_Brains.h"
+
+typedef struct {
+  uint16_t vid;
+  uint16_t pid;
+  bool mounted;
+} dev_info_t;
+
+// CFG_TUH_DEVICE_MAX is defined by tusb_config header
+dev_info_t dev_info[CFG_TUH_DEVICE_MAX] = { 0 };
+
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core0
+//--------------------------------------------------------------------+
+
+void setup() {
+}
+
+void loop() {
+  // Scan and print VID/PID
+  uint8_t dev_count = 0;
+  for(uint8_t daddr=1; daddr < CFG_TUH_DEVICE_MAX+1; daddr++) {
+    dev_info_t const* dev = &dev_info[daddr-1];
+
+    if ( dev->mounted ) {
+      dev_count++;
+      Brain.LCD_printf("[%u] %04X:%04X", daddr, dev->vid, dev->pid);
+    }
+
+    delay(1000);
+  }
+
+  if ( dev_count == 0 ) {
+    Brain.LCD_printf(0, "No USB attached");
+    Brain.LCD_printf(1, "Plug your device");
+  }else {
+    Brain.LCD_printf("Devices num: %u", dev_count);
+    delay(1000);
+  }
+}
+
+//--------------------------------------------------------------------+
+// Setup and Loop on Core1
+//--------------------------------------------------------------------+
+
+// call usbh_begin() hrere to make pio usb background task run on core1
+// NOTE: Brain.begin() should be called here as well to prevent race condition
+void setup1() {
+  Serial.begin(115200);
+  // while (!Serial) delay(10);
+
+  Serial.println("Tester Brains USB Host test!");
+
+  // Init Brain peripherals
+  Brain.begin();
+
+  // Init Brain USB Host
+  Brain.usbh_begin();
+
+  Brain.LCD_printf(0, "No USB attached");
+  Brain.LCD_printf(1, "Plug your device");
+}
+
+// core1's loop: process usb host task on core1
+void loop1()
+{
+  Brain.USBHost.task();
+}
+
+//--------------------------------------------------------------------+
+// TinyUSB Host callbacks
+//--------------------------------------------------------------------+
+extern "C"  {
+
+// Invoked when device is mounted (configured)
+void tuh_mount_cb (uint8_t daddr)
+{
+  dev_info_t* dev = &dev_info[daddr-1];
+  dev->mounted = true;
+
+  tuh_vid_pid_get(daddr, &dev->vid, &dev->pid);
+
+  Serial.printf("Device attached, address = %d\r\n", daddr);
+}
+
+/// Invoked when device is unmounted (bus reset/unplugged)
+void tuh_umount_cb(uint8_t daddr)
+{
+  dev_info_t* dev = &dev_info[daddr-1];
+  dev->mounted = false;
+
+  Serial.printf("Device removed, address = %d\r\n", daddr);
+}
+
+// Invoked when a device with CDC interface is mounted
+// idx is index of cdc interface in the internal pool.
+void tuh_cdc_mount_cb(uint8_t idx) {
+}
+
+// Invoked when a device with CDC interface is unmounted
+void tuh_cdc_umount_cb(uint8_t idx) {
+}
+
+}

examples/Brain/usbh_test/usbh_test.ino

@@ -2,7 +2,7 @@
 // to LCD. Also determine if device support MSC or HID
 
 // required for Host MSC block device
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 
 // required for USB host
 #include "pio_usb.h"
@@ -13,6 +13,11 @@
 // CDC Host object
 Adafruit_USBH_CDC  SerialHost;
 
+enum {
+  COLOR_NO_DEV = 0x00000ff,
+  COLOR_MOUNTED = 0x00ff00,
+};
+
 //--------------------------------------------------------------------+
 // Setup and Loop on Core0
 //--------------------------------------------------------------------+
@@ -57,9 +62,10 @@ void setup1() {
   // Init Brain USB Host
   Brain.usbh_begin();
 
+  Brain.setColor(COLOR_NO_DEV);
+
   // Since we only support 1 CDC interface with Tester (also CFG_TUH_CDC = 1)
   // the index will always be 0 for SerialHost
-  // SerialHost.setInterfaceIndex(0);
   SerialHost.begin(115200);
 
   Brain.LCD_printf(0, "No USB attached");
@@ -89,8 +95,8 @@ void tuh_mount_cb (uint8_t daddr)
   tuh_vid_pid_get(daddr, &vid, &pid);
 
   Serial.printf("Device attached, address = %d\r\n", daddr);
+  Brain.setColor(COLOR_MOUNTED);
   Brain.LCD_printf(0, "USBID %04x:%04x", vid, pid);
-
   Brain.LCD_printf(1, "MS %u HID %u CDC %u", tuh_msc_mounted(daddr), tuh_hid_instance_count(daddr), SerialHost.mounted());
 }
 
@@ -98,9 +104,22 @@ void tuh_mount_cb (uint8_t daddr)
 void tuh_umount_cb(uint8_t daddr)
 {
   Serial.printf("Device removed, address = %d\r\n", daddr);
+  Brain.setColor(COLOR_NO_DEV);
   Brain.LCD_printf(0, "No USB attached");
   Brain.LCD_printf(1, "Plug your device");
+}
 
+// Invoked when a device with CDC interface is mounted
+// idx is index of cdc interface in the internal pool.
+void tuh_cdc_mount_cb(uint8_t idx) {
+  // bind SerialHost object to this interface index
+  SerialHost.mount(idx);
+}
+
+// Invoked when a device with CDC interface is unmounted
+void tuh_cdc_umount_cb(uint8_t idx) {
+  // unbind SerialHost if this interface is unmounted
+  SerialHost.umount(idx);
 }
 
 }

examples/I2C_Scan/I2C_Scan.ino

@@ -7,9 +7,10 @@ extern Adafruit_TestBed TB;
 #if defined(ARDUINO_ARCH_RP2040) \
     || defined(ARDUINO_ADAFRUIT_QTPY_ESP32S2) \
     || defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3_NOPSRAM) \
-    || defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3) \
+    || defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3_N4R2) \
     || defined(ARDUINO_ADAFRUIT_QTPY_ESP32_PICO) \
-    || defined(ARDUINO_SAM_DUE)
+    || defined(ARDUINO_SAM_DUE) \
+    || defined(ARDUINO_ARCH_RENESAS_UNO)
   #define SECONDARY_I2C_PORT &Wire1
 #endif
 
@@ -25,7 +26,7 @@ void setup() {
 
 #if defined(ARDUINO_ADAFRUIT_QTPY_ESP32S2) || \
     defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3_NOPSRAM) || \
-    defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3) || \
+    defined(ARDUINO_ADAFRUIT_QTPY_ESP32S3_N4R2) || \
     defined(ARDUINO_ADAFRUIT_QTPY_ESP32_PICO)
   // ESP32 is kinda odd in that secondary ports must be manually
   // assigned their pins with setPins()!

examples/program_esp32_uart_from_sdcard/esp_binaries.h

@@ -0,0 +1,30 @@
+// Generated by tools/esp_compress.py
+#define ESP_BINARIES_COUNT (1)
+
+// const esp32_zipfile_t NINA_W102_1_7_5
+
+const esp32_zipfile_t NINA_W102_1_7_5 = {
+    .name = "NINA_W102-1.7.5.bin.gz",
+    .data = NULL,
+    .compressed_len = 634996,
+    .uncompressed_len = 1160192,
+    .md5 =
+        {
+            0x07,
+            0x7c,
+            0xec,
+            0x6d,
+            0xaa,
+            0x68,
+            0x13,
+            0xc5,
+            0xa4,
+            0x68,
+            0x0f,
+            0x45,
+            0xc9,
+            0xd8,
+            0x77,
+            0x6b,
+        },
+};

examples/program_esp32_uart_from_sdcard/program_esp32_uart_from_sdcard.ino

@@ -0,0 +1,146 @@
+/* This sketch run on SAMD21/SAMD51 to program ESP32 by flashing bin file from SD Card
+ * Supported/tested ESP MCU are: ESP32, ESP32-S2, ESP32-S3, ESP8266
+ * Hardware wiring:
+ * - TB D2    <-> ESP32 IO0
+ * - TB D3    <-> ESP32 Enable
+ * - TB TX/RX <-> ESP32 RX/TX
+ *
+ * How to run this example:
+ * 0. Define ESP32_RESET, ESP32_IO0, SD_CS, SD_DETECT in this sketch according to your hardware setup
+ * 1. Generate compressed binary and its metadata (len, md5 etc..) by running:
+ *    python3 tools/esp_compress.py --sd <directory_of_bin_files>
+ *    For example: python tools/esp_compress.py --sd .
+ * 2. .bin.gz (e.g NINA_W102-1.7.5.bin.gz) and esp_binaries.h will be generated in the same directory
+ * 3. Copy esp_binaries.h to this example directory
+ * 4. Copy .bin.gz files to SD Card within BIN_DIR (defined in this sketch)
+ * 5. Insert SD Card to board
+ * 6. Upload this sketch to board
+ *
+ * Note: for convenience, this example included generated 'NINA_W102-1.7.5.bin.gz' and 'esp_binaries.h'
+ * from https://github.com/adafruit/nina-fw/releases/tag/1.7.5 in this example directory.
+ */
+
+#include "SdFat_Adafruit_Fork.h"
+
+// #include "Adafruit_TinyUSB.h"
+#include "Adafruit_TestBed.h"
+
+//--------------------------------------------------------------------+
+// Hardware Configuration
+//--------------------------------------------------------------------+
+
+// These are defined in airlift-capable board such PyPortal, PyBadge, etc.
+#if defined(ESP32_GPIO0) && defined(ESP32_RESETN)
+  #define ESP32_RESET  ESP32_RESETN
+  #define ESP32_IO0    ESP32_GPIO0
+#else
+  #define ESP32_RESET  2
+  #define ESP32_IO0    3
+#endif
+
+#if defined(ARDUINO_PYPORTAL_M4)
+  #define SD_CS        32
+  #define SD_DETECT    33
+#else
+  #define SD_CS        4
+  #define SD_DETECT    5 // optional
+#endif
+
+#define ESP32_BAUDRATE  2000000
+//#define ESP32_BAUDRATE  1500000
+//#define ESP32_BAUDRATE  921600
+//#define ESP32_BAUDRATE  115200
+
+//--------------------------------------------------------------------+
+// Binaries and Path
+//--------------------------------------------------------------------+
+#define BIN_DIR "/" // SD card's directory that contains bin files
+#include "esp_binaries.h"
+
+struct {
+  uint32_t addr;
+  esp32_zipfile_t const *zfile;
+} bin_files[] = {
+ {0x00000, &NINA_W102_1_7_5}
+};
+
+enum { BIN_FILES_COUNT = sizeof(bin_files) / sizeof(bin_files[0]) };
+
+//--------------------------------------------------------------------+
+// Defined an boot rom object that use UART Serial1
+ESP32BootROMClass ESP32BootROM(Serial1, ESP32_IO0, ESP32_RESET);
+
+SdFat SD;
+File32 fbin;
+
+//--------------------------------------------------------------------+
+// Implementation
+//--------------------------------------------------------------------+
+
+void print_speed(size_t count, uint32_t ms) {
+  float count_k = count / 1000.0F;
+  float sec = ms / 1000.0F;
+  float speed = count_k / sec;
+
+  Serial.print(count_k); Serial.print("KB "); Serial.print(sec); Serial.println("s");
+  Serial.print("Spd: "); Serial.print(speed); Serial.println(" KB/s");
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+  Serial.println("TestBed: Programming ESP32 with UART!");
+
+#ifdef SD_DETECT
+  pinMode(SD_DETECT, INPUT_PULLUP);
+  if (digitalRead(SD_DETECT) == LOW) {
+    Serial.println("SD Card not inserted");
+    while (1) delay(10);
+  }
+#endif
+
+  if (!SD.begin(SD_CS, SD_SCK_MHZ(12))) {
+    Serial.println("SD Card init failed");
+    while (1) delay(10);
+  }
+  Serial.println("SD Card init OK");
+
+  TB.begin();
+  while ( !TB.esp32_begin(&ESP32BootROM, ESP32_BAUDRATE) ) {
+    // retry syncing
+    delay(100);
+  }
+
+  // Writing bin files
+  size_t total_bytes = 0;
+  uint32_t ms = millis();
+  for(size_t i=0; i<BIN_FILES_COUNT; i++) {
+    Serial.printf("Flashing file %u\r\n", i);
+    Serial.printf("File: %s\r\n", bin_files[i].zfile->name);
+
+    char bin_path[128] = BIN_DIR;
+    strcat(bin_path, bin_files[i].zfile->name);
+
+    fbin.open(&SD, bin_path);
+    if (!fbin) {
+      Serial.printf("Failed to open file %s\r\n", bin_files[i].zfile->name);
+      continue;
+    }
+
+    size_t wr_count = TB.esp32_programFlashDefl(bin_files[i].zfile, bin_files[i].addr, &fbin);
+    total_bytes += wr_count;
+    if (!wr_count) {
+      Serial.printf("Failed to flash");
+    }
+
+    fbin.close();
+  }
+  print_speed(total_bytes, millis() - ms);
+
+  TB.esp32_end();
+
+  // reset ESP32 to run new firmware
+  TB.targetReset();
+}
+void loop() {
+}

library.properties

@@ -1,5 +1,5 @@
 name=Adafruit TestBed
-version=1.7.0
+version=1.14.2
 author=Adafruit
 maintainer=Adafruit <info@adafruit.com>
 sentence=Adafruit's internal test bed code library

src/Adafruit_TestBed.cpp

@@ -1,10 +1,25 @@
 #include "Adafruit_TestBed.h"
 
+// change to 1 to skip pre-flash md5 check for testing
+#define SKIP_PRE_FLASH_MD5_CHECK 0
+
+static inline uint32_t div_ceil(uint32_t v, uint32_t d) {
+  return (v + d - 1) / d;
+}
+
 Adafruit_TestBed::Adafruit_TestBed(void) {
 #if defined(ADAFRUIT_METRO_M0_EXPRESS)
   neopixelPin = 40;
   neopixelNum = 1;
+#elif defined(ADAFRUIT_FEATHER_M0_EXPRESS)
+  neopixelPin = 8;
+  neopixelNum = 1;
 #endif
+
+  esp32boot = NULL;
+  _esp32_flash_defl = false;
+  _esp32_chip_detect = 0;
+  _esp32s3_in_reset = false;
 }
 
 /**************************************************************************/
@@ -33,6 +48,11 @@ void Adafruit_TestBed::begin(void) {
     digitalWrite(ledPin, LOW);
   }
 
+  if (targetResetPin >= 0) {
+    pinMode(targetResetPin, OUTPUT);
+    digitalWrite(targetResetPin, HIGH);
+  }
+
 #if defined(__AVR__)
   analogRef = 5.0;
 #elif defined(ARDUINO_ARCH_RP2040)
@@ -150,6 +170,23 @@ void Adafruit_TestBed::targetPowerCycle(uint16_t off_time) {
   targetPower(1);
 }
 
+void Adafruit_TestBed::targetReset(uint32_t reset_ms) {
+  digitalWrite(targetResetPin, LOW);
+  delay(reset_ms);
+  digitalWrite(targetResetPin, HIGH);
+
+  // Note: S3 has an USB-OTG errata
+  // https://www.espressif.com/sites/default/files/documentation/esp32-s3_errata_en.pdf
+  // which is walkarounded by idf/arduino-esp32 to always mux JTAG to USB for
+  // uploading and/or power on. Afterwards USB-OTG will be set up if selected
+  // so. However rp2040 USBH is running too fast and can actually retrieve
+  // device/configuration descriptor of JTAG before the OTG is fully setup.
+  // Mark this for application usage
+  if (_esp32_chip_detect == CHIP_DETECT_MAGIC_ESP32S3) {
+    _esp32s3_in_reset = true;
+  }
+}
+
 /**************************************************************************/
 /*!
     @brief  Read the ADC on a pin and convert it to a voltage
@@ -160,7 +197,7 @@ void Adafruit_TestBed::targetPowerCycle(uint16_t off_time) {
 /**************************************************************************/
 float Adafruit_TestBed::readAnalogVoltage(uint16_t pin, float multiplier) {
   float a = analogRead(pin);
-  theSerial->println(a);
+  // theSerial->println(a);
 
 #if defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_ADAFRUIT_QTPY_ESP32C3)
   if (a > 3000) {
@@ -184,11 +221,13 @@ float Adafruit_TestBed::readAnalogVoltage(uint16_t pin, float multiplier) {
     @param  name Human readable name for the pin
     @param  multiplier If there's a resistor divider, put the inverse here
     @param  value What voltage the pin should be
+    @param  error Percent of error permitted (10 is 10%)
     @return True if the pin voltage is within 10% of target
 */
 /**************************************************************************/
 bool Adafruit_TestBed::testAnalogVoltage(uint16_t pin, const char *name,
-                                         float multiplier, float value) {
+                                         float multiplier, float value,
+                                         uint8_t error) {
   float voltage = readAnalogVoltage(pin, multiplier);
   theSerial->print(name);
   theSerial->print(F(" output voltage: "));
@@ -196,11 +235,13 @@ bool Adafruit_TestBed::testAnalogVoltage(uint16_t pin, const char *name,
   theSerial->print(F(" V (should be "));
   theSerial->print(value);
   theSerial->print(" V)...");
-  if (abs(voltage - value) > (value / 10.0)) {
+  if (abs(voltage - value) > (value * error / 100.0)) {
     theSerial->println("Failed");
     return false;
   }
-  theSerial->println(F("OK within 10%"));
+  theSerial->print(F("OK within "));
+  theSerial->print(error);
+  theSerial->println("%");
 
   return true;
 }
@@ -380,7 +421,8 @@ void Adafruit_TestBed::beep(uint32_t freq, uint32_t duration) {
   if (piezoPin < 0)
     return;
   pinMode(piezoPin, OUTPUT);
-#if !defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_SAM_DUE)
+#if !defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_SAM_DUE) &&               \
+    !defined(ARDUINO_METRO_ESP32S2)
   tone(piezoPin, freq, duration);
 #else
   // suppress compiler warns
@@ -413,4 +455,203 @@ void Adafruit_TestBed::beepNblink(void) {
 #endif
 }
 
+/**************************************************************************/
+/*!
+    @brief light the LED for 500ms, if defined
+*/
+/**************************************************************************/
+void Adafruit_TestBed::blink(void) {
+  if (ledPin >= 0) {
+    pinMode(ledPin, OUTPUT);
+    digitalWrite(ledPin, HIGH);
+  }
+
+  delay(500);
+
+  if (ledPin >= 0) {
+    digitalWrite(ledPin, LOW);
+  }
+}
+
+//--------------------------------------------------------------------+
+// ESP32 Target
+//--------------------------------------------------------------------+
+
+bool Adafruit_TestBed::esp32_begin(ESP32BootROMClass *bootrom,
+                                   uint32_t baudrate) {
+  esp32boot = bootrom;
+
+  Serial.println("Syncing ESP32");
+  _esp32_chip_detect = esp32boot->begin(baudrate);
+
+  if (_esp32_chip_detect) {
+    setColor(0xFFFFFF);
+    Serial.println("Synced OK");
+    return true;
+  } else {
+    Serial.println("Sync failed!");
+    return false;
+  }
+}
+
+void Adafruit_TestBed::esp32_end(bool reset_esp) {
+  if (esp32boot->isRunningStub()) {
+    // skip sending flash_finish to ROM loader here,
+    // as it causes the loader to exit and run user code
+    esp32boot->beginFlash(0, 0, esp32boot->getFlashWriteSize());
+
+    if (_esp32_flash_defl) {
+      esp32boot->endFlashDefl(reset_esp);
+    } else {
+      esp32boot->endFlash(reset_esp);
+    }
+  }
+
+  esp32boot->end();
+}
+
+bool Adafruit_TestBed::esp32_s3_inReset(void) { return _esp32s3_in_reset; }
+
+void Adafruit_TestBed::esp32_s3_clearReset(void) { _esp32s3_in_reset = false; }
+
+static void print_buf(uint8_t const *buf, size_t len) {
+  for (size_t i = 0; i < len; i++) {
+    Serial.print(buf[i], HEX);
+  }
+  Serial.println();
+}
+
+size_t
+Adafruit_TestBed::_esp32_programFlashDefl_impl(const esp32_zipfile_t *zfile,
+                                               uint32_t addr, File32 *fsrc) {
+  if (!esp32boot) {
+    return 0;
+  }
+
+  // Check if MD5 matches to skip this file
+  uint8_t esp_md5[16];
+
+#if !SKIP_PRE_FLASH_MD5_CHECK
+  esp32boot->md5Flash(addr, zfile->uncompressed_len, esp_md5);
+  Serial.print("Flash MD5: ");
+  print_buf(esp_md5, 16);
+  if (0 == memcmp(zfile->md5, esp_md5, 16)) {
+    Serial.println("MD5 matched");
+    return zfile->uncompressed_len;
+  }
+#endif
+
+  // Write Size is different depending on ROM (1K) or Stub (16KB)
+  uint32_t const block_size = esp32boot->getFlashWriteSize();
+
+  uint8_t *buf = NULL;
+  bool const use_sdcard = (fsrc != NULL);
+
+  if (use_sdcard) {
+    buf = (uint8_t *)malloc(block_size);
+    if (!buf) {
+      Serial.print("No memory ");
+      Serial.println(block_size);
+      return 0;
+    }
+  }
+
+  Serial.print("Compressed ");
+  Serial.print(zfile->uncompressed_len);
+  Serial.print(" bytes to ");
+  Serial.println(zfile->compressed_len);
+
+  if (!esp32boot->beginFlashDefl(addr, zfile->uncompressed_len,
+                                 zfile->compressed_len)) {
+    Serial.println("beginFlash failed!");
+    if (buf) {
+      free(buf);
+    }
+    return 0;
+  }
+
+  _esp32_flash_defl = true;
+
+  //------------- Flashing  -------------//
+  uint32_t written = 0;
+
+  uint32_t const block_num = div_ceil(zfile->compressed_len, block_size);
+  for (uint32_t i = 0; i < block_num; i++) {
+    setLED(HIGH);
+    // Serial.print("Pckt %lu/%lu", i + 1, block_num);
+    Serial.print("Packet ");
+    Serial.print(i + 1);
+    Serial.print("/");
+    Serial.println(block_num);
+
+    uint32_t const remain = zfile->compressed_len - written;
+    uint32_t const wr_count = (remain < block_size) ? remain : block_size;
+
+    uint8_t const *data;
+    if (!use_sdcard) {
+      // file contents is stored in internal flash (e.g rp2040)
+      data = zfile->data + written;
+    } else {
+      // file contents is stored in sdcard
+      memset(buf, 0xff, block_size); // empty it out
+      if (wr_count != fsrc->read(buf, wr_count)) {
+        Serial.println("File contents does not matched with compressed_len");
+        free(buf);
+        return 0;
+      }
+
+      data = buf;
+    }
+
+    // Note: flash deflat does not need padding
+    if (!esp32boot->dataFlashDefl(data, wr_count)) {
+      Serial.println("Failed to flash");
+      break;
+    }
+
+    written += wr_count;
+    setLED(LOW);
+  }
+  Serial.println();
+
+  // Stub only writes each block to flash after 'ack'ing the receive,
+  // so do a final dummy operation which will not be 'ack'ed
+  // until the last block has actually been written out to flash
+  if (esp32boot->isRunningStub()) {
+    Serial.println("Dummy read chip detect after final block");
+    (void)esp32boot->read_chip_detect();
+  }
+
+  //------------- MD5 verification -------------//
+  Serial.println("Verifying MD5");
+  esp32boot->md5Flash(addr, zfile->uncompressed_len, esp_md5);
+
+  if (0 == memcmp(zfile->md5, esp_md5, 16)) {
+    Serial.println("MD5 matched");
+  } else {
+    Serial.println("MD5 mismatched!!");
+
+    Serial.print("File: ");
+    print_buf(zfile->md5, 16);
+
+    Serial.print("ESP : ");
+    print_buf(esp_md5, 16);
+  }
+
+  if (buf) {
+    free(buf);
+  }
+
+  return zfile->uncompressed_len;
+}
+size_t Adafruit_TestBed::esp32_programFlashDefl(const esp32_zipfile_t *zfile,
+                                                uint32_t addr) {
+  return _esp32_programFlashDefl_impl(zfile, addr, NULL);
+}
+
+size_t Adafruit_TestBed::esp32_programFlashDefl(const esp32_zipfile_t *zfile,
+                                                uint32_t addr, File32 *fsrc) {
+  return _esp32_programFlashDefl_impl(zfile, addr, fsrc);
+}
+
 Adafruit_TestBed TB;

src/Adafruit_TestBed.h

@@ -5,6 +5,9 @@
 #include "Arduino.h"
 #include "Wire.h"
 
+#include "ESP32BootROM.h"
+#include "SdFat_Adafruit_Fork.h"
+
 #define RED 0xFF0000
 #define YELLOW 0xFFFF00
 #define GREEN 0x00FF00
@@ -13,6 +16,14 @@
 #define PURPLE 0xFF00FF
 #define WHITE 0xFFFFFF
 
+typedef struct {
+  const char *name;
+  const uint8_t *data;
+  const uint32_t compressed_len;
+  const uint32_t uncompressed_len;
+  const uint8_t md5[16];
+} esp32_zipfile_t;
+
 /**************************************************************************/
 /*!
     @brief A helper class for making test beds and functions. Lots of handy lil
@@ -33,9 +44,11 @@ public:
   void targetPower(bool on);
   void targetPowerCycle(uint16_t off_time = 10);
 
+  void targetReset(uint32_t reset_ms = 20);
+
   float readAnalogVoltage(uint16_t pin, float multiplier = 1);
   bool testAnalogVoltage(uint16_t pin, const char *name, float multiplier,
-                         float value);
+                         float value, uint8_t error = 10);
 
   bool testpins(uint8_t a, uint8_t b, uint8_t *allpins, uint8_t num_allpins);
 
@@ -46,10 +59,29 @@ public:
 
   void beep(uint32_t freq, uint32_t duration);
   void beepNblink(void);
+  void blink(void);
 
   uint32_t timestamp(void);
   void printTimeTaken(bool restamp = false);
 
+  //--------------------------------------------------------------------+
+  // ESP32 Target
+  //--------------------------------------------------------------------+
+  bool esp32_begin(ESP32BootROMClass *bootrom, uint32_t baudrate);
+  void esp32_end(bool reset_esp = false);
+
+  // program esp32 target with compressed data stored in internal flash
+  size_t esp32_programFlashDefl(const esp32_zipfile_t *zfile, uint32_t addr);
+
+  // program esp32 target with compressed file from SDCard
+  size_t esp32_programFlashDefl(const esp32_zipfile_t *zfile, uint32_t addr,
+                                File32 *fsrc);
+
+  bool esp32_s3_inReset(void);
+  void esp32_s3_clearReset(void);
+
+  ESP32BootROMClass *esp32boot; // ESP32 ROM
+
   //////////////////
   TwoWire *theWire = &Wire;    ///< The I2C port used in scanning
   Stream *theSerial = &Serial; ///< The Serial port used for debugging
@@ -60,6 +92,8 @@ public:
   int16_t targetPowerPin = -1;     ///< Set to a target power pin if used
   bool targetPowerPolarity = HIGH; ///< What to set the power pin to, for ON
 
+  int targetResetPin = -1; ///< Set to target reset pin if used
+
   int16_t neopixelPin = -1; ///< The neopixel connected pin if any
   uint8_t neopixelNum = 0;  ///< How many neopixels are on board, if any
   Adafruit_NeoPixel *pixels =
@@ -70,6 +104,15 @@ public:
 
 private:
   uint32_t millis_timestamp = 0; ///< A general purpose timestamp
+
+  bool _esp32_flash_defl;
+  uint32_t _esp32_chip_detect;
+  bool _esp32s3_in_reset;
+
+  size_t _esp32_programFlashDefl_impl(const esp32_zipfile_t *zfile,
+                                      uint32_t addr, File32 *fsrc);
 };
 
+extern Adafruit_TestBed TB;
+
 #endif

src/Adafruit_TestBed_Brains.cpp

@@ -22,9 +22,9 @@
  * THE SOFTWARE.
  */
 
-#ifdef ARDUINO_RASPBERRY_PI_PICO
+#ifdef ARDUINO_ARCH_RP2040
 
-#include "SdFat.h"
+#include "SdFat_Adafruit_Fork.h"
 #include "pio_usb.h"
 
 #include "Adafruit_DAP.h"
@@ -34,8 +34,16 @@
 
 #define USBHOST_RHPORT 1
 
+// Workaround force F_CPU to 240MHz for programming RP2350 due to handshake
+// timeout
+#if F_CPU != 120000000L && F_CPU != 240000000L
+#error "F_CPU must be set to either 120Mhz or 240Mhz for pio-usb host"
+#endif
+
 Adafruit_TestBed_Brains Brain;
 
+volatile bool LCD_semaphore = false;
+
 // Simple and low code CRC calculation (copied from PicoOTA)
 class BrainCRC32 {
 public:
@@ -88,12 +96,11 @@ Adafruit_TestBed_Brains::Adafruit_TestBed_Brains() {
   _usbh_dp_pin = 20; // USB Host D+
   _vbus_en_pin = 22; // USB Host VBus enable
 
-  _target_rst = 27;
+  targetResetPin = 27;
   _target_swdio = 2;
   _target_swdclk = 3;
 
   dap = NULL;
-  esp32boot = NULL;
 }
 
 void Adafruit_TestBed_Brains::begin(void) {
@@ -105,8 +112,8 @@ void Adafruit_TestBed_Brains::begin(void) {
   neopixelNum = 1;
   pinMode(neopixelPin, OUTPUT);
 
-  pinMode(_target_rst, OUTPUT);
-  digitalWrite(_target_rst, HIGH);
+  pinMode(targetResetPin, OUTPUT);
+  digitalWrite(targetResetPin, HIGH);
 
   pinMode(_sd_detect_pin, INPUT_PULLUP);
   pinMode(_vbus_en_pin, OUTPUT);
@@ -128,20 +135,13 @@ void Adafruit_TestBed_Brains::begin(void) {
 
 bool Adafruit_TestBed_Brains::inited(void) { return _inited; }
 
-void Adafruit_TestBed_Brains::targetReset(uint32_t reset_ms) {
-  digitalWrite(_target_rst, LOW);
-  delay(reset_ms);
-  digitalWrite(_target_rst, HIGH);
-}
-
 //--------------------------------------------------------------------+
 // RP2040 Target
 //--------------------------------------------------------------------+
 
-void Adafruit_TestBed_Brains::rp2040_targetResetBootRom(int bootsel_pin,
-                                                        uint32_t reset_ms) {
+void Adafruit_TestBed_Brains::rp2_targetResetBootRom(int bootsel_pin,
+                                                     uint32_t reset_ms) {
   pinMode(bootsel_pin, OUTPUT);
-
   digitalWrite(bootsel_pin, LOW);
 
   targetReset(reset_ms);
@@ -152,7 +152,41 @@ void Adafruit_TestBed_Brains::rp2040_targetResetBootRom(int bootsel_pin,
   pinMode(bootsel_pin, INPUT);
 }
 
-size_t Adafruit_TestBed_Brains::rp2040_programUF2(const char *fpath) {
+size_t Adafruit_TestBed_Brains::rp2_programUF2(const uint8_t *buffer,
+                                               size_t bufsize) {
+  size_t copied_bytes = 0;
+  const char *dst_name = "FIRMWARE.UF2";
+  File32 fdst = USBH_FS.open(dst_name, O_WRONLY | O_CREAT);
+
+  if (!fdst) {
+    Serial.printf("USBH_FS: cannot create file: %s\r\n", dst_name);
+  } else {
+    while (copied_bytes < bufsize) {
+      size_t count = bufsize - copied_bytes;
+      if (count > 4096) {
+        count = 4096; // write 1 sector each
+      }
+
+      setLED(HIGH);
+      size_t wr_count = fdst.write(buffer, count);
+      setLED(LOW);
+
+      buffer += wr_count;
+      copied_bytes += wr_count;
+
+      if (wr_count != count) {
+        Serial.println("USBH_FS: Failed to write file");
+        break;
+      }
+    }
+  }
+
+  fdst.close();
+
+  return copied_bytes;
+}
+
+size_t Adafruit_TestBed_Brains::rp2_programUF2(const char *fpath) {
   File32 fsrc = SD.open(fpath);
   if (!fsrc) {
     Serial.printf("SD: cannot open file: %s\r\n", fpath);
@@ -160,7 +194,6 @@ size_t Adafruit_TestBed_Brains::rp2040_programUF2(const char *fpath) {
   }
 
   size_t copied_bytes = 0;
-
   const char *dst_name = "FIRMWARE.UF2";
   File32 fdst = USBH_FS.open(dst_name, O_WRONLY | O_CREAT);
 
@@ -219,17 +252,17 @@ bool Adafruit_TestBed_Brains::dap_begin(Adafruit_DAP *dp) {
 
   dap = dp;
 
-  return dap->begin(_target_swdclk, _target_swdio, _target_rst,
+  return dap->begin(_target_swdclk, _target_swdio, targetResetPin,
                     dap_err_hanlder);
 }
 
-bool Adafruit_TestBed_Brains::dap_connect(void) {
+bool Adafruit_TestBed_Brains::dap_connect(uint32_t swj_clock) {
   if (!dap) {
     return false;
   }
 
   LCD_printf("Connecting...");
-  if (!dap->targetConnect()) {
+  if (!dap->targetConnect(swj_clock)) {
     return false;
   }
 
@@ -239,10 +272,6 @@ bool Adafruit_TestBed_Brains::dap_connect(void) {
     LCD_printf(0, "Unknown MCU");
     LCD_printf(1, "ID = %08X", dsu_did);
 
-    while (1) {
-      delay(1);
-    }
-
     return false;
   }
 
@@ -251,9 +280,9 @@ bool Adafruit_TestBed_Brains::dap_connect(void) {
           ? (dap->target_device.flash_size / dap->target_device.n_pages)
           : 0;
 
-  Serial.printf("Found Target: %s, ID = %08X\n", dap->target_device.name,
+  Serial.printf("Found Target: %s, ID = %08lX\n", dap->target_device.name,
                 dsu_did);
-  Serial.printf("Flash size: %u, Page Num: %u, Page Size: %u\n",
+  Serial.printf("Flash size: %lu, Page Num: %lu, Page Size: %lu\n",
                 dap->target_device.flash_size, dap->target_device.n_pages,
                 page_size);
 
@@ -272,9 +301,9 @@ bool Adafruit_TestBed_Brains::dap_unprotectBoot(void) {
     return false;
   }
 
-  LCD_printf("Unlock chip...");
+  Serial.println("Unlock chip...");
   bool ret = dap->unprotectBoot();
-  LCD_printf(ret ? "OK" : "Failed");
+  Serial.println(ret ? "OK" : "Failed");
   return ret;
 }
 
@@ -283,9 +312,9 @@ bool Adafruit_TestBed_Brains::dap_protectBoot(void) {
     return false;
   }
 
-  LCD_printf("Lock chip...");
+  Serial.println("Lock chip...");
   bool ret = dap->protectBoot();
-  LCD_printf(ret ? "OK" : "Failed");
+  Serial.println(ret ? "OK" : "Failed");
   return ret;
 }
 
@@ -306,14 +335,15 @@ bool Adafruit_TestBed_Brains::dap_eraseChip(void) {
     dap->erase();
 
     ms = millis() - ms;
-    LCD_printf("done in %.02fs", ms / 1000.0F);
+    LCD_printf("Erased in %.02fs", ms / 1000.0F);
   }
 
   return true;
 }
 
 size_t Adafruit_TestBed_Brains::dap_programFlash(const char *fpath,
-                                                 uint32_t addr) {
+                                                 uint32_t addr, bool do_verify,
+                                                 bool do_crc32) {
   if (!dap) {
     return 0;
   }
@@ -356,7 +386,8 @@ size_t Adafruit_TestBed_Brains::dap_programFlash(const char *fpath,
     return 0;
   }
 
-  LCD_printf("Programming..");
+  LCD_printf("Programming...");
+  uint32_t ms = millis();
 
   BrainCRC32 crc32;
   dap->program_start(addr, fsize);
@@ -364,22 +395,42 @@ size_t Adafruit_TestBed_Brains::dap_programFlash(const char *fpath,
   uint32_t addr_tmp = addr;
   while (fsrc.available()) {
     memset(buf, 0xff, bufsize); // empty it out
-
     uint32_t rd_count = fsrc.read(buf, bufsize);
 
     setLED(HIGH);
-    dap->programBlock(addr_tmp, buf, bufsize);
-    crc32.add(buf, rd_count);
-    setLED(LOW);
+
+    // don't verify each write if we use crc32
+    if (!dap->programFlash(addr_tmp, buf, bufsize, !do_crc32 && do_verify)) {
+      Serial.printf("Failed to program block at %08lX\n", addr_tmp);
+      free(buf);
+      fsrc.close();
+      return addr_tmp - addr;
+    }
+
+    if (do_crc32) {
+      crc32.add(buf, rd_count);
+    }
 
     addr_tmp += bufsize;
+
+    setLED(LOW);
   }
 
-  uint32_t target_crc = dap->computeFlashCRC32(addr, fsize);
+  Serial.printf("Programming end, t = %lu ms\r\n", millis(), millis() - ms);
 
-  if (target_crc != crc32.get()) {
-    LCD_printf("CRC Failed");
-    Serial.printf("CRC mismtached: %08X != %08X\n", crc32.get(), target_crc);
+  if (do_crc32) {
+    ms = millis();
+    Serial.printf("CRC32 start\r\n", ms);
+    uint32_t target_crc = dap->computeFlashCRC32(addr, fsize);
+    Serial.printf("CRC32 end, t = %lu ms\r\n", millis(), millis() - ms);
+
+    if (target_crc != crc32.get()) {
+      LCD_printf("CRC Failed");
+      Serial.printf("CRC mismtached: %08lX != %08lX\n", crc32.get(),
+                    target_crc);
+    } else {
+      LCD_printf("Done!");
+    }
   } else {
     LCD_printf("Done!");
   }
@@ -390,112 +441,47 @@ size_t Adafruit_TestBed_Brains::dap_programFlash(const char *fpath,
   return fsize;
 }
 
-//--------------------------------------------------------------------+
-// ESP32 Target
-//--------------------------------------------------------------------+
-
-bool Adafruit_TestBed_Brains::esp32_begin(ESP32BootROMClass *bootrom,
-                                          uint32_t baudrate) {
-  esp32boot = bootrom;
-
-  LCD_printf("Syncing ESP32");
-  bool ret = esp32boot->begin(baudrate);
-
-  if (ret) {
-    LCD_printf("Synced OK");
-  } else {
-    LCD_printf_error("Sync failed!");
-  }
-
-  return ret;
-}
-
-void Adafruit_TestBed_Brains::esp32_end(void) {
-  esp32boot->endFlash(false);
-  esp32boot->end();
-}
-
-size_t Adafruit_TestBed_Brains::essp32_programFlash(const char *fpath,
-                                                    uint32_t addr) {
-  if (!esp32boot) {
+size_t Adafruit_TestBed_Brains::dap_readFlash(const char *fpath, uint32_t addr,
+                                              size_t size) {
+  if (!dap) {
     return 0;
   }
 
-  enum { MAX_PAYLOAD_SIZE = 1024 };
-
-  uint8_t *buf = (uint8_t *)malloc(MAX_PAYLOAD_SIZE);
+  size_t bufsize = 4096;
+  uint8_t *buf = (uint8_t *)malloc(bufsize);
   if (!buf) {
-    LCD_printf_error("No memory %u\n", MAX_PAYLOAD_SIZE);
     return 0;
   }
 
-  File32 fsrc = SD.open(fpath);
+  File32 fsrc = SD.open(fpath, O_CREAT | O_WRONLY);
   if (!fsrc) {
     Serial.printf("SD: cannot open file: %s\r\n", fpath);
     return 0;
   }
-  uint32_t fsize = fsrc.fileSize();
-  uint32_t total_count = 0;
 
-  if (!esp32boot->beginFlash(addr, fsize, MAX_PAYLOAD_SIZE)) {
-    LCD_printf_error("beginFlash failed!");
-  } else {
-    LCD_printf("#Packets %u", fsize / MAX_PAYLOAD_SIZE);
+  LCD_printf("Reading...");
 
-    MD5Builder md5;
-    md5.begin();
+  size_t remain = size;
+  while (remain) {
+    uint32_t count = min(remain, bufsize);
 
-    //------------- Flashing  -------------//
-    while (fsrc.available()) {
-      memset(buf, 0xff, MAX_PAYLOAD_SIZE); // empty it out
-      uint32_t rd_count = fsrc.read(buf, MAX_PAYLOAD_SIZE);
-
-      setLED(HIGH);
-      Serial.printf("#");
-      if (!esp32boot->dataFlash(buf, MAX_PAYLOAD_SIZE)) {
-        LCD_printf_error("Failed to flash");
-        break;
-      }
-      setLED(LOW);
-
-      md5.add(buf, rd_count);
-      total_count += rd_count;
+    setLED(HIGH);
+    if (!dap->dap_read_block(addr, buf, (int)count)) {
+      Serial.printf("Failed to read block at %08lX\n", addr);
+      break;
     }
-    Serial.println();
+    setLED(LOW);
 
-    //------------- MD5 verification -------------//
-    md5.calculate();
-    Serial.printf("md5 = %s\r\n", md5.toString().c_str());
-
-    uint8_t file_md5[16];
-    md5.getBytes(file_md5);
-
-    uint8_t esp_md5[16];
-    esp32boot->md5Flash(addr, fsize, esp_md5);
-
-    if (0 == memcmp(file_md5, esp_md5, 16)) {
-      LCD_printf("MD5 matched");
-    } else {
-      LCD_printf_error("MD5 mismatched!!");
-
-      Serial.printf("File: ");
-      for (size_t i = 0; i < 16; i++) {
-        Serial.printf("%02X ", file_md5[i]);
-      }
-      Serial.println();
-
-      Serial.printf("ESP : ");
-      for (size_t i = 0; i < 16; i++) {
-        Serial.printf("%02X ", esp_md5[i]);
-      }
-      Serial.println();
-    }
+    fsrc.write(buf, count);
+    LCD_printf("%d remaining", remain);
+    addr += count;
+    remain -= count;
   }
 
-  free(buf);
   fsrc.close();
+  LCD_printf("Done!");
 
-  return total_count;
+  return size - remain;
 }
 
 //--------------------------------------------------------------------+
@@ -528,16 +514,225 @@ bool Adafruit_TestBed_Brains::SD_begin(uint32_t max_clock) {
 //--------------------------------------------------------------------+
 // LCD
 //--------------------------------------------------------------------+
+#define NOP1 __asm volatile("nop");
+#define NOP2 NOP1 NOP1
+#define NOP3 NOP2 NOP1
+#define NOP4 NOP2 NOP2
+#define NOP5 NOP4 NOP1
+#define NOP6 NOP4 NOP2
+#define NOP7 NOP4 NOP3
+#define NOP8 NOP4 NOP4
+#define NOP9 NOP8 NOP1
+#define NOP10 NOP8 NOP2
+#define NOP11 NOP8 NOP3
+#define NOP12 NOP8 NOP4
+#define NOP13 NOP8 NOP5
+#define NOP14 NOP8 NOP6
+#define NOP15 NOP8 NOP7
+#define NOP16 NOP8 NOP8
+#define NOP17 NOP16 NOP1
+#define NOP18 NOP16 NOP2
+#define NOP19 NOP16 NOP3
+#define NOP20 NOP16 NOP4
+#define NOP21 NOP16 NOP5
+#define NOP22 NOP16 NOP6
+#define NOP23 NOP16 NOP7
+#define NOP24 NOP16 NOP8
+#define NOP25 NOP16 NOP9
+#define NOP26 NOP16 NOP10
+#define NOP27 NOP16 NOP11
+#define NOP28 NOP16 NOP12
+#define NOP29 NOP16 NOP13
+#define NOP30 NOP16 NOP14
+#define NOP31 NOP16 NOP15
+#define NOP32 NOP16 NOP16
+#define NOP33 NOP32 NOP1
+#define NOP34 NOP32 NOP2
+#define NOP35 NOP32 NOP3
+#define NOP36 NOP32 NOP4
+#define NOP37 NOP32 NOP5
+#define NOP38 NOP32 NOP6
+#define NOP39 NOP32 NOP7
+#define NOP40 NOP32 NOP8
+#define NOP41 NOP32 NOP9
+#define NOP42 NOP32 NOP10
+#define NOP43 NOP32 NOP11
+#define NOP44 NOP32 NOP12
+#define NOP45 NOP32 NOP13
+#define NOP46 NOP32 NOP14
+#define NOP47 NOP32 NOP15
+#define NOP48 NOP32 NOP16
+#define NOP49 NOP48 NOP1
+#define NOP50 NOP48 NOP2
+#define NOP51 NOP48 NOP3
+#define NOP52 NOP48 NOP4
+#define NOP53 NOP48 NOP5
+#define NOP54 NOP48 NOP6
+#define NOP55 NOP48 NOP7
+#define NOP56 NOP48 NOP8
+#define NOP57 NOP48 NOP9
+#define NOP58 NOP48 NOP10
+#define NOP59 NOP48 NOP11
+#define NOP60 NOP48 NOP12
+#define NOP61 NOP48 NOP13
+#define NOP62 NOP48 NOP14
+#define NOP63 NOP48 NOP15
+#define NOP64 NOP48 NOP16
+#define NOP65 NOP64 NOP1
+#define NOP66 NOP64 NOP2
+#define NOP67 NOP64 NOP3
+#define NOP68 NOP64 NOP4
+#define NOP69 NOP64 NOP5
+#define NOP70 NOP64 NOP6
+#define NOP71 NOP64 NOP7
+#define NOP72 NOP64 NOP8
+#define NOP73 NOP64 NOP9
+#define NOP74 NOP64 NOP10
+#define NOP75 NOP64 NOP11
+#define NOP76 NOP64 NOP12
+#define NOP77 NOP64 NOP13
+#define NOP78 NOP64 NOP14
+#define NOP79 NOP64 NOP15
+#define NOP80 NOP64 NOP16
+#define NOP81 NOP80 NOP1
+#define NOP82 NOP80 NOP2
+#define NOP83 NOP80 NOP3
+#define NOP84 NOP80 NOP4
+#define NOP85 NOP80 NOP5
+#define NOP86 NOP80 NOP6
+#define NOP87 NOP80 NOP7
+#define NOP88 NOP80 NOP8
+#define NOP89 NOP80 NOP9
+#define NOP90 NOP80 NOP10
+#define NOP91 NOP80 NOP11
+#define NOP92 NOP80 NOP12
+#define NOP93 NOP80 NOP13
+#define NOP94 NOP80 NOP14
+#define NOP95 NOP80 NOP15
+#define NOP96 NOP80 NOP16
+#define NOP97 NOP96 NOP1
+#define NOP98 NOP96 NOP2
+#define NOP99 NOP96 NOP3
+#define NOP100 NOP96 NOP4
+#define NOP101 NOP100 NOP1
+#define NOP102 NOP100 NOP2
+#define NOP103 NOP100 NOP3
+#define NOP104 NOP100 NOP4
+#define NOP105 NOP100 NOP5
+#define NOP106 NOP100 NOP6
+#define NOP107 NOP100 NOP7
+#define NOP108 NOP100 NOP8
+#define NOP109 NOP100 NOP9
+#define NOP110 NOP100 NOP10
+#define NOP111 NOP100 NOP11
+#define NOP112 NOP100 NOP12
+#define NOP113 NOP100 NOP13
+#define NOP114 NOP100 NOP14
+#define NOP115 NOP100 NOP15
+#define NOP116 NOP100 NOP16
+#define NOP117 NOP116 NOP1
+#define NOP118 NOP116 NOP2
+#define NOP119 NOP116 NOP3
+#define NOP120 NOP116 NOP4
+#define NOP121 NOP116 NOP5
+#define NOP122 NOP116 NOP6
+#define NOP123 NOP116 NOP7
+#define NOP124 NOP116 NOP8
+#define NOP125 NOP116 NOP9
+#define NOP126 NOP116 NOP10
+#define NOP127 NOP116 NOP11
+#define NOP128 NOP116 NOP12
+#define NOP129 NOP128 NOP1
+#define NOP130 NOP128 NOP2
+#define NOP131 NOP128 NOP3
+#define NOP132 NOP128 NOP4
+#define NOP133 NOP128 NOP5
+#define NOP134 NOP128 NOP6
+#define NOP135 NOP128 NOP7
+#define NOP136 NOP128 NOP8
+#define NOP137 NOP128 NOP9
+#define NOP138 NOP128 NOP10
+#define NOP139 NOP128 NOP11
+#define NOP140 NOP128 NOP12
+#define NOP141 NOP128 NOP13
+#define NOP142 NOP128 NOP14
+#define NOP143 NOP128 NOP15
+#define NOP144 NOP128 NOP16
+#define NOP145 NOP144 NOP1
+#define NOP146 NOP144 NOP2
+#define NOP147 NOP144 NOP3
+#define NOP148 NOP144 NOP4
+#define NOP149 NOP144 NOP5
+#define NOP150 NOP144 NOP6
+#define NOP151 NOP144 NOP7
+#define NOP152 NOP144 NOP8
+#define NOP153 NOP144 NOP9
+#define NOP154 NOP144 NOP10
+#define NOP155 NOP144 NOP11
+#define NOP156 NOP144 NOP12
+#define NOP157 NOP144 NOP13
+#define NOP158 NOP144 NOP14
+#define NOP159 NOP144 NOP15
+#define NOP160 NOP144 NOP16
+#define NOP161 NOP160 NOP1
+#define NOP162 NOP160 NOP2
+#define NOP163 NOP160 NOP3
+#define NOP164 NOP160 NOP4
+#define NOP165 NOP160 NOP5
+#define NOP166 NOP160 NOP6
+#define NOP167 NOP160 NOP7
+#define NOP168 NOP160 NOP8
+#define NOP169 NOP160 NOP9
+#define NOP170 NOP160 NOP10
+#define NOP171 NOP160 NOP11
+#define NOP172 NOP160 NOP12
+#define NOP173 NOP160 NOP13
+#define NOP174 NOP160 NOP14
+#define NOP175 NOP160 NOP15
+#define NOP176 NOP160 NOP16
+#define NOP177 NOP176 NOP1
+#define NOP178 NOP176 NOP2
+#define NOP179 NOP176 NOP3
+#define NOP180 NOP176 NOP4
+#define NOP181 NOP176 NOP5
+#define NOP182 NOP176 NOP6
+#define NOP183 NOP176 NOP7
+#define NOP184 NOP176 NOP8
+#define NOP185 NOP176 NOP9
+#define NOP186 NOP176 NOP10
+#define NOP187 NOP176 NOP11
+#define NOP188 NOP176 NOP12
+#define NOP189 NOP176 NOP13
+#define NOP190 NOP176 NOP14
+#define NOP191 NOP176 NOP15
+#define NOP192 NOP176 NOP16
+#define NOP193 NOP192 NOP1
+#define NOP194 NOP192 NOP2
+#define NOP195 NOP192 NOP3
+#define NOP196 NOP192 NOP4
+#define NOP197 NOP192 NOP5
+#define NOP198 NOP192 NOP6
+#define NOP199 NOP192 NOP7
+#define NOP200 NOP192 NOP8
 
-// 1s = 1.000.000 us --> 120.000.000 nop
-// 1 us -> 120 nop
-// full frame, 1.25 us -> 150 nop
-//  - T1H 0,76 us -> 91 nop
-//  - T0H 0,36 us -> 43 nop
+#define _NOP_COUNT(n) NOP##n
+#define NOP_COUNT(n) _NOP_COUNT(n)
+
+void __no_inline_not_in_flash_func(Adafruit_TestBed_Brains::setColor)(
+    uint32_t color) {
+  static uint32_t end_us = 0;
+  static uint32_t last_color = 0x123456;
+
+  if (last_color == color) {
+    // no need to update
+    return;
+  }
+  last_color = color;
+
+  uint8_t r = (uint8_t)(color >> 16); // red
+  uint8_t g = (uint8_t)(color >> 8);  // green
+  uint8_t b = (uint8_t)color;         // blue
 
-void Adafruit_TestBed_Brains::setColor(uint32_t color) {
-  uint8_t r = (uint8_t)(color >> 16), g = (uint8_t)(color >> 8),
-          b = (uint8_t)color;
   uint8_t buf[3] = {r, g, b};
 
   uint8_t *ptr, *end, p, bitMask;
@@ -548,65 +743,107 @@ void Adafruit_TestBed_Brains::setColor(uint32_t color) {
   p = *ptr++;
   bitMask = 0x80;
 
-  // 800 KHz
-  for (;;) {
+  // wait for previous frame to finish
+  enum { FRAME_TIME_US = 300 };
+
+  uint32_t now = end_us;
+  while (now - end_us < FRAME_TIME_US) {
+    now = micros();
+    if (now < end_us) {
+      // micros() overflow
+      end_us = now;
+    }
+  }
+
+  uint32_t const isr_context = save_and_disable_interrupts();
+
+  /* Neopixel is 800 KHz, 1T = 1.25 us = 150 nop (120Mhz), 300 nop (240Mhz)
+     - T1H = 0.8 us, T1L = 0.45 us
+     - T0H = 0.4 us, T0L = 0.85 us
+     If F_CPU is 120 MHz: 120 nop = 1us -> 1 nop = 8.33 ns
+     - T1H = 0.8 us = 96 nop, T1L = 0.45 us = 54 nop
+     - T0H = 0.4 us = 48 nop, T0L = 0.85 us = 102 nop
+     If F_CPU is 240 MHz: 240 nop = 1us -> 1 nop = 4.17 ns
+     - T1H = 0.8 us = 192 nop, T1L = 0.45 us = 108 nop
+     - T0H = 0.4 us = 96 nop, T0L = 0.85 us = 204 nop
+     Due to overhead the number of NOP is actually smaller, also M33 run faster
+     (higher IPC) therefore these are hand tuned,
+  */
+#if defined(ARDUINO_RASPBERRY_PI_PICO)
+// value for rp2040 at 120MHz
+#define T1H_CYCLE 90
+#define T1L_CYCLE 39
+#define T0H_CYCLE 42
+#define T0L_CYCLE 84
+#define LOOP_OVERHEAD_CYCLE 10 // overhead for if/else and loop
+#elif defined(ARDUINO_RASPBERRY_PI_PICO_2)
+// value for rp2350 at 120MHz
+#define T1H_CYCLE 190
+#define T1L_CYCLE 90
+#define T0H_CYCLE 88
+#define T0L_CYCLE 180
+#define LOOP_OVERHEAD_CYCLE 5
+#endif
+
+  while (1) {
     if (p & bitMask) {
-      // T1H 0,76 us -> 91 nop
+      // T1H 0.8 us = 96 nop (without overhead)
       sio_hw->gpio_set = pinMask;
-      asm("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop;");
+      NOP_COUNT(T1H_CYCLE);
+#if F_CPU == 240000000L
+      NOP_COUNT(T1H_CYCLE);
+#endif
 
-      // 150 - 91 = 59 nop
+      // T1L 0.45 = 54 - 10 (ifelse) - 5 (overhead) = 44 nop
       sio_hw->gpio_clr = pinMask;
-      asm("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop;");
+      NOP_COUNT(T1L_CYCLE);
+#if F_CPU == 240000000L
+      NOP_COUNT(T1L_CYCLE);
+#endif
+
     } else {
-      // T0H 0,36 us -> 43 nop
+      // T0H 0.4 us = 48 cycles
       sio_hw->gpio_set = pinMask;
-      asm("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop;");
+      NOP_COUNT(T0H_CYCLE);
+#if F_CPU == 240000000L
+      NOP_COUNT(T0H_CYCLE);
+#endif
 
-      // 150 - 43 = 107 nop
+      // T0L 0.85 us = 102 - 10 (ifelse) - 5 (overhead) = 87 nop
       sio_hw->gpio_clr = pinMask;
-      asm("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
-          "nop; nop; nop; nop; nop; nop; nop;");
+      NOP_COUNT(T0L_CYCLE);
+#if F_CPU == 240000000L
+      NOP_COUNT(T0L_CYCLE);
+#endif
     }
 
-    // if a full byte is sent, next to another byte
-    if (0 == (bitMask >>= 1)) {
-      if (ptr >= end)
+    if (bitMask >>= 1) {
+      // not full byte, shift to next bit
+      NOP_COUNT(LOOP_OVERHEAD_CYCLE);
+    } else {
+      // probably take 10 nops
+      // if a full byte is sent, next to another byte
+      if (ptr >= end) {
         break;
+      }
       p = *ptr++;
       bitMask = 0x80;
     }
+#if F_CPU == 240000000L
+    NOP_COUNT(LOOP_OVERHEAD_CYCLE);
+#endif
   }
+
+  restore_interrupts(isr_context);
+
+  end_us = micros();
 }
 
 void Adafruit_TestBed_Brains::lcd_write(uint8_t linenum, char linebuf[17]) {
+  // wait for semaphore to release
+  while (LCD_semaphore)
+    yield();
+  LCD_semaphore = true;
   // fill the rest with spaces
   memset(linebuf + strlen(linebuf), ' ', 16 - strlen(linebuf));
   linebuf[16] = 0;
@@ -618,6 +855,7 @@ void Adafruit_TestBed_Brains::lcd_write(uint8_t linenum, char linebuf[17]) {
   Serial.flush();
 
   _lcd_line = 1 - linenum;
+  LCD_semaphore = false;
 }
 
 #define _LCD_PRINTF(_line, _format)                                            \
@@ -656,7 +894,9 @@ void Adafruit_TestBed_Brains::LCD_info(const char *msg1, const char *msg2) {
 void Adafruit_TestBed_Brains::LCD_error(const char *errmsg1,
                                         const char *errmsg2) {
   setColor(0xFF0000);
-  LCD_printf(0, errmsg1);
+  if (errmsg1) {
+    LCD_printf(0, errmsg1);
+  }
   if (errmsg2) {
     LCD_printf(1, errmsg2);
   }
@@ -673,16 +913,14 @@ void Adafruit_TestBed_Brains::usbh_setVBus(bool en) {
 bool Adafruit_TestBed_Brains::usbh_begin(void) {
   // Check for CPU frequency, must be multiple of 120Mhz for bit-banging USB
   uint32_t cpu_hz = clock_get_hz(clk_sys);
-  if (cpu_hz != 120000000UL && cpu_hz != 240000000UL) {
+  if (cpu_hz % 12000000UL) {
     while (!Serial) {
       delay(10); // wait for native usb
     }
-    Serial.printf("Error: CPU Clock = %u, PIO USB require CPU clock must be "
-                  "multiple of 120 Mhz\r\n",
-                  cpu_hz);
-    Serial.printf("Change your CPU Clock to either 120 or 240 Mhz in Menu->CPU "
-                  "Speed \r\n",
+    Serial.printf("Error: CPU Clock = %lu, PIO USB require CPU clock must be "
+                  "multiple of 12 Mhz\r\n",
                   cpu_hz);
+    Serial.println("Change your CPU Clock to 12*n Mhz in Menu->CPU Speed");
     while (1) {
       delay(1);
     }

src/Adafruit_TestBed_Brains.h

@@ -1,18 +1,16 @@
 #ifndef ADAFRUIT_TESTBED_BRAINS_H
 #define ADAFRUIT_TESTBED_BRAINS_H
 
-#ifdef ARDUINO_RASPBERRY_PI_PICO
+#ifdef ARDUINO_ARCH_RP2040
+
+#include "SdFat_Adafruit_Fork.h"
 
 #include "Adafruit_TestBed.h"
-#include "SdFat.h"
 #include <LiquidCrystal.h>
 
 #include "Adafruit_DAP.h"
 #include "Adafruit_TinyUSB.h"
 
-#include "ESP32BootROM.h"
-#include "MD5Builder.h"
-
 /**************************************************************************/
 /*!
     @brief A helper class for making RP2040 "Tester Brains"
@@ -51,24 +49,31 @@ public:
   bool usbh_mountFS(uint8_t dev_addr);
   bool usbh_umountFS(uint8_t dev_addr);
 
-  // Target
-  void targetReset(uint32_t reset_ms = 20);
-
+  //--------------------------------------------------------------------+1
+  // RP2 (rp2040 and rp2350) Target
   //--------------------------------------------------------------------+
-  // RP2040 Target
-  //--------------------------------------------------------------------+
-  // reset rp2040 target to Boot ROM
-  void rp2040_targetResetBootRom(int bootsel_pin = 28, uint32_t reset_ms = 20);
+  // reset rp2 target to Boot ROM
+  void rp2_targetResetBootRom(int bootsel_pin = 28, uint32_t reset_ms = 20);
 
-  // program rp2040 target by copying UF2 file from SDCard
+  // program rp2 target by copying UF2 file stored in flash
+  size_t rp2_programUF2(const uint8_t *buffer, size_t bufsize);
+
+  // program rp2 target by copying UF2 file from SDCard
   // return number of copied bytes (typically uf2 file size)
-  size_t rp2040_programUF2(const char *fpath);
+  size_t rp2_programUF2(const char *fpath);
+
+  // backward compatibility
+  void rp2040_targetResetBootRom(int bootsel_pin = 28, uint32_t reset_ms = 20) {
+    rp2_targetResetBootRom(bootsel_pin, reset_ms);
+  }
+
+  size_t rp2040_programUF2(const char *fpath) { return rp2_programUF2(fpath); }
 
   //--------------------------------------------------------------------+
   // DAP (samd21/51, nrf5x, stm32f4 etc..) Target
   //--------------------------------------------------------------------+
   bool dap_begin(Adafruit_DAP *dp);
-  bool dap_connect(void);
+  bool dap_connect(uint32_t swj_clock = 50);
   void dap_disconnect(void);
 
   bool dap_unprotectBoot(void);
@@ -78,18 +83,12 @@ public:
 
   // program dap target with file from SDCard
   // return number of programmed bytes
-  size_t dap_programFlash(const char *fpath, uint32_t addr);
+  // Note: if do_crc32 is false, we will verify each write by reading back
+  size_t dap_programFlash(const char *fpath, uint32_t addr,
+                          bool do_verify = true, bool do_crc32 = true);
 
-  //--------------------------------------------------------------------+
-  // ESP32 Target
-  //--------------------------------------------------------------------+
-
-  bool esp32_begin(ESP32BootROMClass *bootrom, uint32_t baudrate);
-  void esp32_end(void);
-
-  // program esp32 target with file from SDCard
-  // return number of programmed bytes
-  size_t essp32_programFlash(const char *fpath, uint32_t addr);
+  // read dap target flash to file on SDCard
+  size_t dap_readFlash(const char *fpath, uint32_t addr, size_t size);
 
   //--------------------------------------------------------------------+
   // Public Variables
@@ -109,9 +108,6 @@ public:
   // Dap
   Adafruit_DAP *dap;
 
-  // ESP32 ROM
-  ESP32BootROMClass *esp32boot;
-
 private:
   bool _inited;
   uint8_t _lcd_line;
@@ -121,7 +117,6 @@ private:
   int _vbus_en_pin;
   int _usbh_dp_pin;
 
-  int _target_rst;
   int _target_swdio;
   int _target_swdclk;
 

src/ESP32BootROM.h

@@ -18,54 +18,103 @@
   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 ESP32_BOOTROM_H
+#define ESP32_BOOTROM_H
 
 #include <Arduino.h>
 
 #define ESP32_DEFAULT_TIMEOUT 3000
 
+enum {
+  CHIP_DETECT_MAGIC_ESP32 = 0x00F01D83,
+  CHIP_DETECT_MAGIC_ESP32S2 = 0x000007C6,
+  CHIP_DETECT_MAGIC_ESP32S3 = 0x9,
+  CHIP_DETECT_MAGIC_ESP8266 = 0xFFF0C101,
+  CHIP_DETECT_MAGIC_ESP32C6 = 0x2CE0806F,
+};
+
+typedef struct {
+  uint32_t chip_detect;
+  uint32_t entry;
+  uint32_t text_start;
+  uint32_t text_length;
+  const uint8_t *text;
+  uint32_t data_start;
+  uint32_t data_length;
+  const uint8_t *data;
+  const char *chip_name;
+} esp32_stub_loader_t;
+
 class ESP32BootROMClass {
 public:
-  // supportsEncryptedFlash must be set to
-  // - false for ESP32 (default)
-  // - true for later chips such as S2, S3, H2, C3
-  ESP32BootROMClass(HardwareSerial &hwSerial, int gpio0Pin, int resetnPin,
-                    bool supportsEncryptedFlash = false);
+  ESP32BootROMClass(HardwareSerial &hwSerial, int gpio0Pin = -1,
+                    int resetnPin = -1);
 
-  int begin(unsigned long baudrate);
+  // return chip detect magic if success, otherwise 0
+  uint32_t begin(unsigned long baudrate);
   void end();
 
-  bool read_reg(uint32_t regAddr, uint32_t *regValue, uint32_t timeout_ms=ESP32_DEFAULT_TIMEOUT);
-  bool read_MAC(uint8_t mac[6]);
+  bool isRunningStub(void);
+  uint32_t getFlashWriteSize(void);
 
-  int beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize);
-  int dataFlash(const void *data, uint32_t length);
-  int endFlash(uint32_t reboot);
-  int md5Flash(uint32_t offset, uint32_t size, uint8_t *result);
+  // High Level commands
+  bool read_reg(uint32_t regAddr, uint32_t *regValue,
+                uint32_t timeout_ms = ESP32_DEFAULT_TIMEOUT);
+  bool read_MAC(uint8_t mac[6]);
+  uint32_t read_chip_detect(void);
+
+  // uncompressed
+  bool beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize);
+  bool dataFlash(const void *data, uint32_t length);
+  bool endFlash(uint32_t reboot);
+
+  // compressed
+  bool beginFlashDefl(uint32_t offset, uint32_t size, uint32_t zip_size);
+  bool dataFlashDefl(const void *data, uint32_t len);
+  bool endFlashDefl(uint32_t reboot);
+
+  bool md5Flash(uint32_t offset, uint32_t size, uint8_t *result);
 
 private:
-  int sync();
-  int changeBaudrate(unsigned long baudrate);
-  int spiAttach();
+  void init();
+  void resetBootloader(void);
+  bool sync();
+  bool uploadStub(const esp32_stub_loader_t *stub);
+  bool syncStub(uint32_t timeout_ms);
 
-  void command(uint8_t opcode, const void *data, uint16_t length);
-  int response(uint8_t opcode, uint32_t timeout_ms, void *body = NULL, uint16_t maxlen = 4);
+  // Command and Response
+  void command(uint8_t opcode, const void *data, uint16_t length,
+               const void *data2 = NULL, uint16_t len2 = 0);
+  int response(uint8_t opcode, uint32_t timeout_ms, void *body = NULL);
 
-  void writeEscapedBytes(const uint8_t *data, uint16_t length);
+  bool sendCommandGetResponse(uint8_t opcode, const void *data, uint16_t length,
+                              const void *data2 = NULL, uint16_t len2 = 0,
+                              uint32_t timeout_ms = ESP32_DEFAULT_TIMEOUT,
+                              void *body = NULL);
+
+  // High Level commands
+  bool changeBaudrate(uint32_t baudrate);
+  bool spiAttach();
 
   bool beginMem(uint32_t offset, uint32_t size, uint32_t chunkSize);
   bool dataMem(const void *data, uint32_t length);
   bool endMem(uint32_t entry);
 
-  // only needed for ESP32
-  bool uploadStub(void);
-  bool syncStub(void);
+  // read and write packets
+  uint16_t readBytes(void *buf, uint16_t length, uint32_t timeout_ms);
+  bool readSLIP(uint32_t timeout_ms);
+  void writeEscapedBytes(const uint8_t *data, uint16_t length);
 
-private:
   HardwareSerial *_serial;
   int _gpio0Pin;
   int _resetnPin;
+
   bool _supports_encrypted_flash;
+  bool _stub_running;
+  bool _rom_8266_running;
+  uint32_t _chip_detect;
 
   uint32_t _flashSequenceNumber;
-  uint32_t _chunkSize;
 };
+
+#endif

src/stub.py

@@ -1,91 +0,0 @@
-import base64
-import string
-from samba.dcerpc.dcerpc import payload
-
-'''
-stub = {
-    "entry": 1074521560,
-    "text": "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",
-    "text_start": 1074520064,
-    "data": "GOv8P9jnC0Bx6AtA8+wLQO3oC0CP6AtA7egLQEnpC0AG6gtAeOoLQCHqC0CB5wtAo+kLQPjpC0Bn6QtAmuoLQI7pC0Ca6gtAXegLQLPoC0Dt6AtASekLQHfoC0BM6wtAs+wLQKXmC0DX7AtApeYLQKXmC0Cl5gtApeYLQKXmC0Cl5gtApeYLQKXmC0Dz6gtApeYLQM3rC0Cz7AtA",
-    "data_start": 1073605544
-}
-'''
-
-# from esptool.py v4.4
-stub = {
-    "entry": 1074521516,
-    "text": "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",
-    "text_start": 1074520064,
-    "data": "CMD8Pw==",
-    "data_start": 1073605544
-}
-
-def print_array(payload):
-    i = 0;
-    for x in payload:
-        if i == 0:
-            print("  ", end='')
-        print("0x%02x, " % x, end="")
-        i += 1
-        if i == 16:
-            i = 0
-            print("")
-    print()        
-    print("};");
-    print()
-
-data = base64.b64decode(stub["data"])
-text = base64.b64decode(stub["text"])
-
-print("const uint32_t stub_esp32_entry = 0x%08x;" % stub["entry"])
-print()
-
-print("const uint32_t stub_esp32_text_start = 0x%08x;" % stub["text_start"])
-print("const uint32_t stub_esp32_text_length = %d;" % len(text))
-print()
-
-print("const uint32_t stub_esp32_data_start = 0x%08x;" % stub["data_start"])
-print("const uint32_t stub_esp32_data_length = %d;" % len(data))
-print()
-
-print ("const uint8_t stub_esp32_data[%d] = {" % len(data))
-print_array(data)
-
-print ("const uint8_t stub_esp32_text[%d] = {" % len(text))
-print_array(text)
-
-# For comparing with esptool.py --trace data
-'''
-def hexify(s, uppercase=True):
-    format_str = "%02X" if uppercase else "%02x"
-    return "".join(format_str % c for c in s)
-
-def HexFormatter(_s):
-    if len(_s) > 16:
-        result = ""
-        s = _s
-        while len(s) > 0:
-            line = s[:16]
-            ascii_line = "".join(
-                c
-                if (
-                    c == " "
-                    or (c in string.printable and c not in string.whitespace)
-                )
-                else "."
-                for c in line.decode("ascii", "replace")
-            )
-            s = s[16:]
-            result += "\n    %-16s %-16s | %s" % (
-                hexify(line[:8], False),
-                hexify(line[8:], False),
-                ascii_line,
-            )
-        return result
-    else:
-        return hexify(_s, False)
-        
-text = base64.b64decode(stub["text"])
-print(HexFormatter(text))
-'''

src/stub_esp32.h

@@ -1,230 +0,0 @@
-const uint32_t stub_esp32_entry = 0x400be5ac;
-
-const uint32_t stub_esp32_text_start = 0x400be000;
-const uint32_t stub_esp32_text_length = 3432;
-
-const uint32_t stub_esp32_data_start = 0x3ffdeba8;
-const uint32_t stub_esp32_data_length = 4;
-
-const uint8_t stub_esp32_data[4] = {
-  0x08, 0xc0, 0xfc, 0x3f, 
-};
-
-const uint8_t stub_esp32_text[3432] = {
-  0x08, 0x00, 0xf4, 0x3f, 0x1c, 0x00, 0xf4, 0x3f, 0x00, 0x00, 0xf4, 0x3f, 0xa4, 0xeb, 0xfd, 0x3f, 
-  0x10, 0x00, 0xf4, 0x3f, 0x36, 0x41, 0x00, 0x21, 0xfa, 0xff, 0xc0, 0x20, 0x00, 0x38, 0x02, 0x41, 
-  0xf9, 0xff, 0xc0, 0x20, 0x00, 0x28, 0x04, 0x20, 0x20, 0x74, 0x9c, 0xe2, 0x06, 0x05, 0x00, 0x00, 
-  0x00, 0x41, 0xf5, 0xff, 0x81, 0xf6, 0xff, 0xc0, 0x20, 0x00, 0xa8, 0x04, 0x88, 0x08, 0xa0, 0xa0, 
-  0x74, 0xe0, 0x08, 0x00, 0x0b, 0x22, 0x66, 0x02, 0xe7, 0x86, 0xf4, 0xff, 0x21, 0xf1, 0xff, 0xc0, 
-  0x20, 0x00, 0x39, 0x02, 0x1d, 0xf0, 0x00, 0x00, 0xf8, 0x20, 0xf4, 0x3f, 0xf8, 0x30, 0xf4, 0x3f, 
-  0x36, 0x41, 0x00, 0x91, 0xfd, 0xff, 0xc0, 0x20, 0x00, 0x88, 0x09, 0x80, 0x80, 0x24, 0x56, 0x48, 
-  0xff, 0x91, 0xfa, 0xff, 0xc0, 0x20, 0x00, 0x88, 0x09, 0x80, 0x80, 0x24, 0x56, 0x48, 0xff, 0x1d, 
-  0xf0, 0x00, 0x00, 0x00, 0x10, 0x20, 0xf4, 0x3f, 0x00, 0x20, 0xf4, 0x3f, 0x00, 0x00, 0x00, 0x08, 
-  0x36, 0x41, 0x00, 0xe5, 0xfc, 0xff, 0x21, 0xfb, 0xff, 0x0c, 0x08, 0xc0, 0x20, 0x00, 0x89, 0x02, 
-  0x91, 0xfb, 0xff, 0x81, 0xf9, 0xff, 0xc0, 0x20, 0x00, 0x92, 0x68, 0x00, 0xc0, 0x20, 0x00, 0x98, 
-  0x08, 0x56, 0x79, 0xff, 0xc0, 0x20, 0x00, 0x88, 0x02, 0x7c, 0xf2, 0x80, 0x22, 0x30, 0x20, 0x20, 
-  0x04, 0x1d, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x40, 0x36, 0x41, 0x00, 0x65, 0xfc, 0xff, 0x16, 0x9a, 
-  0xff, 0x81, 0xed, 0xff, 0x91, 0xfc, 0xff, 0xc0, 0x20, 0x00, 0x99, 0x08, 0xc0, 0x20, 0x00, 0x98, 
-  0x08, 0x56, 0x79, 0xff, 0x1d, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x01, 
-  0x98, 0xc0, 0xfd, 0x3f, 0xff, 0xff, 0xff, 0x00, 0x04, 0x20, 0xf4, 0x3f, 0x36, 0x41, 0x00, 0x21, 
-  0xfc, 0xff, 0x38, 0x42, 0x16, 0x23, 0x06, 0xa5, 0xf8, 0xff, 0x16, 0xca, 0x05, 0x88, 0x42, 0x0c, 
-  0xf9, 0x0c, 0x03, 0x87, 0xa9, 0x0c, 0x88, 0x22, 0x90, 0x88, 0x10, 0x0c, 0x19, 0x80, 0x39, 0x83, 
-  0x30, 0x30, 0x74, 0x65, 0xfa, 0xff, 0xa5, 0xf3, 0xff, 0x88, 0x22, 0x91, 0xf2, 0xff, 0x40, 0x88, 
-  0x11, 0x87, 0x39, 0x1f, 0x91, 0xed, 0xff, 0xcc, 0x13, 0x91, 0xec, 0xff, 0xa1, 0xef, 0xff, 0xc0, 
-  0x20, 0x00, 0x89, 0x0a, 0x81, 0xd1, 0xff, 0xc0, 0x20, 0x00, 0x99, 0x08, 0xc0, 0x20, 0x00, 0x98, 
-  0x08, 0x56, 0x79, 0xff, 0x1c, 0x09, 0x0c, 0x18, 0x30, 0x89, 0x93, 0x3d, 0x08, 0x88, 0x42, 0x30, 
-  0x88, 0xc0, 0x89, 0x42, 0x88, 0x22, 0x3a, 0x38, 0x39, 0x22, 0x1d, 0xf0, 0x90, 0xc0, 0xfd, 0x3f, 
-  0x08, 0x40, 0xfd, 0x3f, 0x80, 0x80, 0x00, 0x00, 0x84, 0x80, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 
-  0x48, 0x80, 0xfd, 0x3f, 0x94, 0xc0, 0xfd, 0x3f, 0x36, 0x41, 0x00, 0xb1, 0xf8, 0xff, 0x20, 0xa0, 
-  0x74, 0xa5, 0xb7, 0x00, 0x96, 0xea, 0x05, 0x81, 0xf6, 0xff, 0x91, 0xf6, 0xff, 0xa0, 0xa0, 0x74, 
-  0x90, 0x98, 0x80, 0xc0, 0x20, 0x00, 0xb2, 0x29, 0x00, 0x91, 0xf3, 0xff, 0x90, 0x88, 0x80, 0xc0, 
-  0x20, 0x00, 0x92, 0x18, 0x00, 0x90, 0x90, 0xf4, 0x1b, 0xc9, 0xc0, 0xc0, 0xf4, 0xc0, 0x20, 0x00, 
-  0xc2, 0x58, 0x00, 0x9a, 0x9b, 0xc0, 0x20, 0x00, 0xa2, 0x49, 0x00, 0xc0, 0x20, 0x00, 0x92, 0x18, 
-  0x00, 0x81, 0xea, 0xff, 0x90, 0x90, 0xf4, 0x80, 0x80, 0xf4, 0x87, 0x99, 0x46, 0x81, 0xe4, 0xff, 
-  0x91, 0xe5, 0xff, 0xa1, 0xe8, 0xff, 0x9a, 0x98, 0xc0, 0x20, 0x00, 0xc8, 0x09, 0xb1, 0xe4, 0xff, 
-  0x87, 0x9c, 0x19, 0x46, 0x02, 0x00, 0x7c, 0xe8, 0x87, 0x1a, 0xe1, 0x46, 0x09, 0x00, 0x00, 0x00, 
-  0xc0, 0x20, 0x00, 0x89, 0x0a, 0xc0, 0x20, 0x00, 0xb9, 0x09, 0x46, 0x02, 0x00, 0xc0, 0x20, 0x00, 
-  0xb9, 0x0a, 0xc0, 0x20, 0x00, 0x89, 0x09, 0x91, 0xd8, 0xff, 0x9a, 0x88, 0x0c, 0x09, 0xc0, 0x20, 
-  0x00, 0x92, 0x58, 0x00, 0x1d, 0xf0, 0x00, 0x00, 0x50, 0x2d, 0x06, 0x40, 0x36, 0x41, 0x00, 0x41, 
-  0xb0, 0xff, 0x58, 0x34, 0x50, 0x33, 0x63, 0x16, 0xf3, 0x03, 0x58, 0x14, 0x5a, 0x53, 0x50, 0x5c, 
-  0x41, 0x86, 0x00, 0x00, 0x65, 0xeb, 0xff, 0x88, 0x44, 0xa6, 0x18, 0x04, 0x88, 0x24, 0x87, 0xa5, 
-  0xf2, 0xe5, 0xe3, 0xff, 0x16, 0x9a, 0xff, 0xa8, 0x14, 0xcd, 0x03, 0xbd, 0x02, 0x81, 0xf2, 0xff, 
-  0xe0, 0x08, 0x00, 0xa0, 0xa0, 0x74, 0x8c, 0x3a, 0x22, 0xa0, 0xc4, 0x29, 0x54, 0x28, 0x14, 0x3a, 
-  0x22, 0x29, 0x14, 0x28, 0x34, 0x30, 0x32, 0xc0, 0x39, 0x34, 0x1d, 0xf0, 0x08, 0x20, 0xf4, 0x3f, 
-  0x00, 0x00, 0x40, 0x00, 0x70, 0xe2, 0xfa, 0x3f, 0x48, 0x24, 0x06, 0x40, 0xf0, 0x22, 0x06, 0x40, 
-  0x36, 0x61, 0x00, 0xe5, 0xdc, 0xff, 0xad, 0x01, 0x81, 0xfc, 0xff, 0xe0, 0x08, 0x00, 0x3d, 0x0a, 
-  0x0c, 0x12, 0xec, 0xea, 0x88, 0x01, 0x92, 0xa2, 0x00, 0x90, 0x88, 0x10, 0x89, 0x01, 0xa5, 0xe1, 
-  0xff, 0x91, 0xf2, 0xff, 0xa1, 0xf3, 0xff, 0xc0, 0x20, 0x00, 0x88, 0x09, 0xa0, 0x88, 0x20, 0xc0, 
-  0x20, 0x00, 0x82, 0x69, 0x00, 0xb2, 0x21, 0x00, 0xa1, 0xef, 0xff, 0x81, 0xf0, 0xff, 0xe0, 0x08, 
-  0x00, 0xa0, 0x23, 0x83, 0x1d, 0xf0, 0x00, 0x00, 0xff, 0x0f, 0x00, 0x00, 0x36, 0x41, 0x00, 0x81, 
-  0x84, 0xff, 0x92, 0xa0, 0x01, 0x92, 0x48, 0x00, 0x30, 0x9c, 0x41, 0x92, 0x68, 0x02, 0x91, 0xfa, 
-  0xff, 0x32, 0x68, 0x01, 0x29, 0x38, 0x30, 0x30, 0xb4, 0x9a, 0x22, 0x2a, 0x33, 0x30, 0x3c, 0x41, 
-  0x0c, 0x02, 0x29, 0x58, 0x39, 0x48, 0xa5, 0xf8, 0xff, 0x2d, 0x0a, 0x8c, 0x1a, 0x22, 0xa0, 0xc5, 
-  0x1d, 0xf0, 0x00, 0x00, 0x2c, 0x92, 0x00, 0x40, 0x36, 0x41, 0x00, 0x82, 0xa0, 0xc0, 0xad, 0x02, 
-  0x87, 0x92, 0x0e, 0xa2, 0xa0, 0xdb, 0x81, 0xfb, 0xff, 0xe0, 0x08, 0x00, 0xa2, 0xa0, 0xdc, 0x86, 
-  0x03, 0x00, 0x82, 0xa0, 0xdb, 0x87, 0x92, 0x08, 0x81, 0xf7, 0xff, 0xe0, 0x08, 0x00, 0xa2, 0xa0, 
-  0xdd, 0x81, 0xf4, 0xff, 0xe0, 0x08, 0x00, 0x1d, 0xf0, 0x00, 0x00, 0x00, 0x36, 0x41, 0x00, 0x3a, 
-  0x32, 0x06, 0x02, 0x00, 0x00, 0xa2, 0x02, 0x00, 0x1b, 0x22, 0xe5, 0xfb, 0xff, 0x37, 0x92, 0xf4, 
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-};
-

tools/esp_compress.py

@@ -0,0 +1,81 @@
+import zlib
+import hashlib
+from pathlib import Path
+import click
+
+def print_carray(f, payload):
+    while len(payload) > 0:
+        f.write('\n    ')
+        f.write(', '.join('0x{:02x}'.format(x) for x in payload[0:16]))
+        f.write(',')
+        payload = payload[16:]
+    f.write('\n')
+
+
+@click.command()
+@click.argument('dpath', type=click.Path(exists=True), default='.')
+@click.option('--sd', is_flag=True, default=False, help='Generate header for using with SDCard')
+def main(dpath, sd):
+    """
+    This script takes a directory path (default is current directory) and
+    create compressed .bin.gz file along 'esp_binaries.h' containing metadata in esp32_zipfile_t struct.
+    Which can be used to program ESP32 with TestBed or Brain.
+    If '--sd' option is specified, it will skip generating C array data for gz file.
+    """
+    output_header = 'esp_binaries.h'
+    with open(output_header, 'w') as fc:
+        # print typedef struct
+        fc.write('// Generated by tools/esp_compress.py\n')
+        file_list = sorted(Path(dpath).glob('*.bin'))
+        fc.write(f'#define ESP_BINARIES_COUNT ({len(file_list)})\n\n')
+
+        # print list of struct first
+        for fname in file_list:
+            var = fname.stem
+            var = var.replace('.', '_')
+            var = var.replace('-', '_')
+            fc.write(f'// const esp32_zipfile_t {var}\n')
+        fc.write('\n')
+
+        for fname in file_list:
+            with open(fname, 'rb') as fi:
+                image = fi.read()
+                zimage = zlib.compress(image, 9)
+                fzname = fname.with_suffix('.bin.gz')
+                md5 = hashlib.md5(image)
+
+                # write .gz file
+                with open(fzname, 'wb') as fz:
+                    fz.write(zimage)
+
+                # write to c header file
+                var = fname.stem
+                var = var.replace('.', '_')
+                var = var.replace('-', '_')
+
+                # bin gz contents
+                if not sd:
+                    fc.write(f'const uint8_t _{var}_gz[{len(zimage)}] = {{')
+                    print_carray(fc, zimage)
+                    fc.write('};\n\n')
+
+                fc.write(f'const esp32_zipfile_t {var} = {{\n')
+                fc.write(f'  .name = "{fzname}",\n')
+                if sd:
+                    fc.write(f'  .data = NULL,\n')
+                else:
+                    fc.write(f'  .data = _{var}_gz,\n')
+                fc.write(f'  .compressed_len = {len(zimage)},\n')
+                fc.write(f'  .uncompressed_len = {len(image)},\n')
+                fc.write('  .md5 = {')
+                print_carray(fc, md5.digest())
+                fc.write('  },\n')
+                fc.write('};\n')
+                fc.write('\n')
+
+                deflation = 100*(1-len(zimage)/len(image))
+                print(f"Compressed {var}: {len(image)} to {len(zimage)} bytes, deflation: {deflation:.2f}%")
+
+
+if __name__ == '__main__':
+    main()

tools/file2carray.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+import argparse
+import random
+import os
+import sys
+import time
+import subprocess
+from pathlib import Path
+from multiprocessing import Pool
+from weakref import finalize
+
+
+def print_carray(f, payload):
+    while len(payload) > 0:
+        f.write('\n    ')
+        f.write(', '.join('0x{:02x}'.format(x) for x in payload[0:16]))
+        f.write(',')
+        payload = payload[16:]
+    f.write('\n')
+
+
+def main():
+    parser = argparse.ArgumentParser(description='Convert binary files to C array format')
+    parser.add_argument('files', nargs='+', help='Binary files to convert')
+    args = parser.parse_args()
+
+    files = args.files
+    for fin_name in files:
+        if not os.path.isfile(fin_name):
+            print(f"File {fin_name} does not exist")
+            continue
+
+        with open(fin_name, 'rb') as fin:
+            contents = fin.read()
+            fout_name = fin_name + '.h'
+            with open(fout_name, 'w') as fout:
+                print(f"Converting {fin_name} to {fout_name}")
+                fout.write(f'const size_t bindata_len = {len(contents)};\n')
+                fout.write(f'const uint8_t bindata[] __attribute__((aligned(16))) = {{')
+                print_carray(fout, contents)
+                fout.write('};\n')
+
+
+if __name__ == '__main__':
+    sys.exit(main())