Add board: Seeed XIAO BLE

.github/workflows/build.yml

@@ -39,7 +39,7 @@ jobs:
     strategy:
       # devices to build for
       matrix:
-        board: [LINUX, ESP32, ESP8266_BOARD, ESP8266_4MB, MICROBIT1, MICROBIT2, ESP32C3_IDF4]
+        board: [LINUX, ESP32, ESP8266_BOARD, ESP8266_4MB, MICROBIT1, MICROBIT2, ESP32C3_IDF4, XIAOBLE]
       # try and build for all devices even if one fails
       fail-fast: false 
     steps:
@@ -62,6 +62,7 @@ jobs:
         name: ${{ matrix.board }}
         path: |
           bin/*.bin
+          bin/*.uf2
           bin/*.hex
           bin/*.tgz
           bin/*.zip

ChangeLog

@@ -9,6 +9,9 @@
             Bangle.js: Ensure fake LED1/LED2 remember state
             Ensure E.setComparator is added to the build for nRF52
             Bangle.js2: Update test to use accelerometer to test vibration motor
+            Build: Allow creating UF2 images
+            XiaoBLE: Add board: Seeed XIAO BLE
+            nRF5x: Allow entering UF2 bootloader mode by calling E.rebootToDFU() (on boards that have such a bootloader)
 
      2v25 : ESP32C3: Get analogRead working correctly
             Graphics: Adjust image alignment when rotating images to avoid cropping (fix #2535)

Makefile

@@ -891,6 +891,8 @@ clean:
 	$(Q)rm -f $(PROJ_NAME).bin
 	$(Q)rm -f $(PROJ_NAME).srec
 	$(Q)rm -f $(PROJ_NAME).lst
+	$(Q)rm -f $(PROJ_NAME).app_hex
+	$(Q)rm -f $(PROJ_NAME).uf2
 	$(Q)rm -f $(BINDIR)/espruino_embedded.h
 	$(Q)rm -f $(BINDIR)/espruino_embedded.c
 	$(Q)rm -f $(BINDIR)/jstypes.h

README_BuildProcess.md

@@ -148,6 +148,7 @@ This is a partial list of definitions that can be added in a `BOARD.py` file's `
 * `ESPR_LCD_MANUAL_BACKLIGHT` - STM32/FSMC: Don't turn the backlight on and leave code to do this manually
 * `ESPR_DISABLE_KICKWATCHDOG_PIN=BTN1_PININDEX` - If this pin is 1, skip kickWatchdog calls (which would eventually force a reboot if WDT enabled)
 * `ESPR_TERMNINAL_NO_SCROLL` - disable scrolling in the onscreen terminal (once we get to the end, we just clear the screen and start at the top)
+* `ESPR_HAS_BOOTLOADER_UF2` - nRF5x: Allow entering UF2 bootloader mode by calling E.rebootToDFU()
 
 
 There are some specifically that are useful for cutting a few bytes out of the build:

boards/XIAOBLE.py

@@ -0,0 +1,177 @@
+#!/bin/false
+# This file is part of Espruino, a JavaScript interpreter for Microcontrollers
+#
+# Copyright (C) 2013 Gordon Williams <[email protected]>
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# ----------------------------------------------------------------------------------------
+# This file contains information for a specific board - the available pins, and where LEDs,
+# Buttons, and other in-built peripherals are. It is used to build documentation as well
+# as various source and header files for Espruino.
+# ----------------------------------------------------------------------------------------
+
+# To build and flash run:
+"""
+source ./scripts/provision.sh XIAOBLE
+make clean && BOARD=XIAOBLE RELEASE=1 make
+"""
+# Then connect the board to your computer and press the reset button twice.
+# You should now see a USB storage device called "XIAO-SENSE" (no matter which version you have).
+# Copy the "espruino_*_xiaoble.uf2" file from the "bin" folder to that drive.
+# The board should automatically disconnect after copying is finished, and reboot into Espruino,
+# which turns on the red led for a short time after starting up.
+
+# If you accidentally put some stuff in .boot0 that prevents you from interacting with Espruino:
+# Pull pin D1 to 3.3 V / high (important: make sure you use 3.3 V; higher voltages may cause damage) and reset the board,
+# by either pressing the reset button or cutting the power and powering it up again.
+# This behaviour is archived by configuring pin D1 as BTN1.
+
+import pinutils
+info = {
+    "name": "Seeed Xiao BLE",
+    "link": ["https://www.seeedstudio.com/Seeed-XIAO-BLE-nRF52840-p-5201.html"],
+    "default_console": "EV_USBSERIAL",
+    "variables": 14000,  # How many variables are allocated for Espruino to use. RAM will be overflowed if this number is too high and code won't compile.
+    "binary_name": "espruino_%v_xiaoble.uf2",
+    "build": {
+        "optimizeflags": "-Os",
+        "libraries": [
+            "BLUETOOTH",
+            # "GRAPHICS",
+            "CRYPTO","SHA256","SHA512",
+            "AES_CCM",
+            # "NFC",
+            # "TENSORFLOW",
+            "NEOPIXEL",
+            "JIT",
+        ],
+        "makefile": [
+            "DEFINES += -DESPR_LSE_ENABLE",  # Ensure low speed external osc enabled
+            "DEFINES += -DCONFIG_GPIO_AS_PINRESET",  # Allow the reset pin to work
+            "DEFINES += -DNRF_USB=1 -DUSB",
+            "DEFINES += -DNEOPIXEL_SCK_PIN=33 -DNEOPIXEL_LRCK_PIN=34",  # nRF52840 needs LRCK pin defined for neopixel
+            "DEFINES += -DBLUETOOTH_NAME_PREFIX='\"XIAOBLE\"'",
+            "DEFINES += -DSPIFLASH_READ2X",  # Read SPI flash at 2x speed using MISO and MOSI for IO
+            "DEFINES += -DESPR_UNICODE_SUPPORT=1",
+            "DEFINES += -DNRF_SDH_BLE_GATT_MAX_MTU_SIZE=131",  # 23+x*27 rule as per https://devzone.nordicsemi.com/f/nordic-q-a/44825/ios-mtu-size-why-only-185-bytes
+            # 'DEFINES += -DPIN_NAMES_DIRECT=1', # Package skips out some pins, so we can't assume each port starts from 0
+            "LDFLAGS += -Xlinker --defsym=LD_APP_RAM_BASE=0x2ec0",  # set RAM base to match MTU
+            'DEFINES += -DESPR_BLE_PRIVATE_ADDRESS_SUPPORT',
+            'DEFINES += -DESPR_HAS_BOOTLOADER_UF2',
+            'NRF_SDK15=1',
+        ],
+    },
+}
+
+chip = {
+    "part": "NRF52840",
+    "family": "NRF52",
+    "package": "AQFN73",
+    "ram": 256,
+    "flash": 1024,
+    "speed": 64,
+    "usart": 1,
+    "spi": 1,
+    "i2c": 2,
+    "adc": 1,
+    "dac": 0,
+    "saved_code": {
+        "address": 0x60000000, # put this in external spiflash (see below)
+        "page_size": 4096,
+        "pages": 512, # Entire 2 MB of external flash
+        "flash_available": 1024 - ((38 + 7 + 12 + 1) * 4) - 780,
+        # Softdevice 140 uses 38 pages of flash, user data 7, bootloader 12, plus 1 page of padding (because I'm paranoid and really don't want to overwrite the bootloader).
+        # Each page is 4 KB.
+    },
+}
+
+devices = {
+    "LED1": {"pin": "D11"},
+    "LED2": {"pin": "D13"},
+    "LED3": {"pin": "D12"},
+    "BTN1": {"pin": "D1", "pinstate" : "IN_PULLDOWN"},
+    "BAT": {
+        "pin_charging": "D23",
+        "pin_voltage": "D32",
+    },
+    "NFC": {"pin_a": "D30", "pin_b": "D31"},
+    # accelerometer is only present on the "sense" variant (Seeed XIAO BLE nRF52840 Sense)
+    #"ACCEL" : {
+    #    # device is actually a LSM6DS3TR-C, not sure if this would even work
+    #    "device" : "LSM6DSL", "addr" : 0x6b,
+    #    "pin_sda" : "D17",
+    #    "pin_scl" : "D16"
+    #},
+    "SPIFLASH": {
+        "pin_cs": "D25",
+        "pin_sck": "D24",
+        "pin_mosi": "D26",
+        "pin_miso": "D27",
+        "pin_wp": "D28",
+        "pin_rst": "D29",
+        "size": 4096 * 512,  # 2 MB
+        "memmap_base": 0x60000000,  # map into the address space (in software)
+    },
+}
+
+# left-right, or top-bottom order
+board = {}
+
+# schematic at https://files.seeedstudio.com/wiki/XIAO-BLE/Seeed-Studio-XIAO-nRF52840-Sense-v1.1.pdf
+# pinout sheet https://files.seeedstudio.com/wiki/XIAO-BLE/XIAO-nRF52840-pinout_sheet.xlsx
+# see also https://github.com/Seeed-Studio/Adafruit_nRF52_Arduino/blob/master/variants/Seeed_XIAO_nRF52840/variant.h
+# and https://github.com/Seeed-Studio/Adafruit_nRF52_Arduino/blob/master/variants/Seeed_XIAO_nRF52840/variant.cpp
+def get_pins():
+    pins = [
+      { "name": "PD0", "sortingname": "D00", "port": "D", "num": "2", "functions": { "ADC1_IN0": 0 } },
+      { "name": "PD1", "sortingname": "D01", "port": "D", "num": "3", "functions": { "ADC1_IN1": 0 } },
+      { "name": "PD2", "sortingname": "D02", "port": "D", "num": "28", "functions": { "ADC1_IN4": 0 } },
+      { "name": "PD3", "sortingname": "D03", "port": "D", "num": "29", "functions": { "ADC1_IN5": 0 } },
+      { "name": "PD4", "sortingname": "D04", "port": "D", "num": "4", "functions": { "ADC1_IN2": 0 } },
+      { "name": "PD5", "sortingname": "D05", "port": "D", "num": "5", "functions": { "ADC1_IN3": 0 } },
+      { "name": "PD6", "sortingname": "D06", "port": "D", "num": "43", "functions": {} },
+      { "name": "PD7", "sortingname": "D07", "port": "D", "num": "44", "functions": {} },
+      { "name": "PD8", "sortingname": "D08", "port": "D", "num": "45", "functions": {} },
+      { "name": "PD9", "sortingname": "D09", "port": "D", "num": "46", "functions": {} },
+      { "name": "PD10", "sortingname": "D10", "port": "D", "num": "47", "functions": {} },
+      { "name": "PD11", "sortingname": "D11", "port": "D", "num": "26", "functions": { "NEGATED": 0, "LED_RED": 0 } },
+      { "name": "PD12", "sortingname": "D12", "port": "D", "num": "6", "functions": { "NEGATED": 0, "LED_BLUE": 0 } },
+      { "name": "PD13", "sortingname": "D13", "port": "D", "num": "30", "functions": { "ADC1_IN6": 0, "NEGATED": 0, "LED_GREEN": 0 } },
+      { "name": "PD14", "sortingname": "D14", "port": "D", "num": "14", "functions": { "NEGATED": 0, "VBAT_ENABLE": 0 } },
+      { "name": "PD15", "sortingname": "D15", "port": "D", "num": "40", "functions": { "6D_PWR": 0 } },
+      { "name": "PD16", "sortingname": "D16", "port": "D", "num": "27", "functions": { "6D_I2C_SCL": 0 } },
+      { "name": "PD17", "sortingname": "D17", "port": "D", "num": "7", "functions": { "6D_I2C_SDA": 0 } },
+      { "name": "PD18", "sortingname": "D18", "port": "D", "num": "11", "functions": { "6D_INT1": 0 } },
+      { "name": "PD19", "sortingname": "D19", "port": "D", "num": "42", "functions": { "MIC_PWR": 0 } },
+      { "name": "PD20", "sortingname": "D20", "port": "D", "num": "32", "functions": { "PDM_CLK": 0 } },
+      { "name": "PD21", "sortingname": "D21", "port": "D", "num": "16", "functions": { "PDM_DATA": 0 } },
+      { "name": "PD22", "sortingname": "D22", "port": "D", "num": "13", "functions": { "HICHG": 0 } },
+      { "name": "PD23", "sortingname": "D23", "port": "D", "num": "17", "functions": { "NEGATED": 0, "CHG": 0 } },
+      { "name": "PD24", "sortingname": "D24", "port": "D", "num": "21", "functions": { "QSPI_SCK": 0 } },
+      { "name": "PD25", "sortingname": "D25", "port": "D", "num": "25", "functions": { "QSPI_CSN": 0 } },
+      { "name": "PD26", "sortingname": "D26", "port": "D", "num": "20", "functions": { "QSPI_DI": 0 } },
+      { "name": "PD27", "sortingname": "D27", "port": "D", "num": "24", "functions": { "QSPI_DO": 0 } },
+      { "name": "PD28", "sortingname": "D28", "port": "D", "num": "22", "functions": { "QSPI_WP": 0 } },
+      { "name": "PD29", "sortingname": "D29", "port": "D", "num": "23", "functions": { "QSPI_HOLD": 0 } },
+      { "name": "PD30", "sortingname": "D30", "port": "D", "num": "9", "functions": { "NFC1": 0 } },
+      { "name": "PD31", "sortingname": "D31", "port": "D", "num": "10", "functions": { "NFC2": 0 } },
+      { "name": "PD32", "sortingname": "D32", "port": "D", "num": "31", "functions": { "ADC1_IN7": 0, "VBAT": 0 } },
+    ]
+    # D23 CHG
+    # get charge state via digitalRead(D23)
+    # HIGH: charging, LOW: not charging
+    # D22 HICHG / PIN_CHARGING_CURRENT
+    # battery charging current see https://wiki.seeedstudio.com/XIAO_BLE/#battery-charging-current
+    # HIGH: 100mA, LOW: 50mA
+    # D14 VBAT_ENABLE
+    # enable battery voltage reading by digitalWrite(D14, true)
+    # D32 VBAT
+    # battery voltage; remember to enable voltage reading if you want to use this
+
+    # everything is non-5v tolerant
+    for pin in pins:
+        pin["functions"]["3.3"] = 0
+    return pins

make/common/NRF5X.make

@@ -527,6 +527,9 @@ $(PROJ_NAME).hex: $(PROJ_NAME).app_hex
 	python scripts/hexmerge.py $(SOFTDEVICE) $(PROJ_NAME).app_hex -o $(PROJ_NAME).hex
  endif # USE_BOOTLOADER
 
+$(PROJ_NAME).uf2: $(PROJ_NAME).hex
+	@echo Creating UF2
+	python3 scripts/uf2/uf2conv.py $(PROJ_NAME).hex -c -f $(CHIP) -o $(PROJ_NAME).uf2
 
 $(PROJ_NAME).zip: $(PROJ_NAME).app_hex
 ifdef NRF5X_SDK_11 # SDK11 requires non-secure DFU that the adafruit tools support
@@ -561,11 +564,10 @@ partflash: all
 
 ifdef DFU_UPDATE_BUILD_WITH_HEX
 proj: $(PROJ_NAME).hex $(PROJ_NAME).zip
-else
-ifdef DFU_UPDATE_BUILD
+else ifdef DFU_UPDATE_BUILD
 proj: $(PROJ_NAME).zip
+else ifdef CREATE_UF2
+proj: $(PROJ_NAME).uf2
 else
 proj: $(PROJ_NAME).hex
 endif
-endif
-

scripts/get_makefile_decls.py

@@ -53,6 +53,9 @@
     binaryName = binaryName[:binaryName.find('.bin')]
 if binaryName.find('.hex')>=0:
     binaryName = binaryName[:binaryName.find('.hex')]
+if binaryName.find('.uf2')>=0:
+    binaryName = binaryName[:binaryName.find('.uf2')]
+    print("CREATE_UF2=1")
 print("PROJ_NAME=$(BINDIR)/"+binaryName)
 
 if board.chip["family"]!="LINUX":

scripts/uf2/LICENSE.txt

@@ -0,0 +1,25 @@
+Microsoft UF2
+
+The MIT License (MIT)
+
+Copyright (c) Microsoft Corporation
+
+All rights reserved.
+
+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.