Clone

.clang-format

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+BasedOnStyle: LLVM
+IndentWidth: 4
+UseTab: Never
+ColumnLimit: 100
+SortIncludes: false

.gdbinit

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+target extended-remote localhost:3333

.gitmodules

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+[submodule "lib/uf2"]
+	path = lib/uf2
+	url = https://github.com/Microsoft/uf2.git

.travis.yml

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+language: node_js
+sudo: false
+node_js:
+  - "5.7.0"
+notifications:
+  email:
+    - [email protected]
+addons:
+  apt:
+    packages:
+      - libc6-i386
+
+node_js:
+  - "6"
+
+cache:
+  directories:
+    - $HOME/gcc-arm-none-eabi-6-2017-q1-update
+
+install:
+  - export GCC_DIR=$HOME/gcc-arm-none-eabi-6-2017-q1-update
+  - export GCC_ARCHIVE=$HOME/gcc-arm-none-eabi-6-2017-q1-update-linux.tar.bz2
+  - export GCC_URL=https://developer.arm.com/-/media/Files/downloads/gnu-rm/6_1-2017q1/gcc-arm-none-eabi-6-2017-q1-update-linux.tar.bz2?product=GNU%20ARM%20Embedded%20Toolchain,64-bit,,Linux,6-2017-q1-update
+  - if [ ! -e $GCC_DIR/bin/arm-none-eabi-g++ ]; then wget $GCC_URL -O $GCC_ARCHIVE; tar xfj $GCC_ARCHIVE -C $HOME; fi
+  - export PATH=$PATH:$GCC_DIR/bin
+
+script:
+    - make all-boards

.vscode/launch.json

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+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "C++ Attach",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceRoot}/uf2-bootloader.elf",
+            "cwd": "${workspaceRoot}",
+            "logging": {
+                "moduleLoad": true,
+                "trace": true,
+                "exceptions": true,
+                "programOutput": true,
+                "engineLogging": true,
+                "traceResponse": true
+            },
+            "targetArchitecture": "arm",
+            "stopAtEntry": true,
+            "customLaunchSetupCommands": [
+                {
+                    "text": "cd ${workspaceRoot}",
+                    "description": "attach",
+                    "ignoreFailures": false
+                },
+                {
+                    "text": "file ${workspaceRoot}/uf2-bootloader.elf",
+                    "description": "attach",
+                    "ignoreFailures": false
+                },
+                {
+                    "text": "target extended-remote localhost:3333",
+                    "description": "attach",
+                    "ignoreFailures": false
+                }
+            ],
+            "linux": {
+                "MIMode": "gdb"
+            },
+            "osx": {
+                "miDebuggerPath": "/usr/local/bin/arm-none-eabi-gdb",
+                "MIMode": "gdb"
+            },
+            "windows": {
+                "MIMode": "gdb"
+            },
+        }
+    ]
+}

.vscode/settings.json

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+{
+    "files.associations": {}
+}

.vscode/tasks.json

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+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "0.1.0",
+    "command": "make",
+    "isShellCommand": true,
+    "args": [],
+    "showOutput": "always"
+}

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) Microsoft
+
+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.
+
+Third Party Programs: The software may include third party programs that
+Microsoft, not the third party, licenses to you under this agreement.
+Notices, if any, for the third party programs are included for your
+information only.
+
+
+
+Otherwise, where noted:
+
+/* ----------------------------------------------------------------------------
+ *         SAM Software Package License
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2011-2014, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following condition is met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+

Makefile

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+BOARD=dragoninjector
+-include Makefile.user
+include boards/$(BOARD)/board.mk
+CC=arm-none-eabi-gcc
+ifeq ($(CHIP_FAMILY), samd21)
+COMMON_FLAGS = -mthumb -mcpu=cortex-m0plus -Os -g -DSAMD21
+endif
+ifeq ($(CHIP_FAMILY), samd51)
+COMMON_FLAGS = -mthumb -mcpu=cortex-m4 -O2 -g -DSAMD51
+endif
+WFLAGS = \
+-Werror -Wall -Wstrict-prototypes \
+-Werror-implicit-function-declaration -Wpointer-arith -std=gnu99 \
+-ffunction-sections -fdata-sections -Wchar-subscripts -Wcomment -Wformat=2 \
+-Wimplicit-int -Wmain -Wparentheses -Wsequence-point -Wreturn-type -Wswitch \
+-Wtrigraphs -Wunused -Wuninitialized -Wunknown-pragmas -Wfloat-equal -Wno-undef \
+-Wbad-function-cast -Wwrite-strings -Waggregate-return \
+-Wformat -Wmissing-format-attribute \
+-Wno-deprecated-declarations -Wpacked -Wredundant-decls -Wnested-externs \
+-Wlong-long -Wunreachable-code -Wcast-align \
+-Wno-missing-braces -Wno-overflow -Wno-shadow -Wno-attributes -Wno-packed -Wno-pointer-sign
+CFLAGS = $(COMMON_FLAGS) \
+-x c -c -pipe -nostdlib \
+--param max-inline-insns-single=500 \
+-fno-strict-aliasing -fdata-sections -ffunction-sections \
+-D__$(CHIP_VARIANT)__ \
+$(WFLAGS)
+
+UF2_VERSION_BASE = $(shell git describe --dirty --always --tags)
+
+ifeq ($(CHIP_FAMILY), samd21)
+LINKER_SCRIPT=scripts/samd21j18a.ld
+BOOTLOADER_SIZE=8192
+SELF_LINKER_SCRIPT=scripts/samd21j18a_self.ld
+endif
+
+ifeq ($(CHIP_FAMILY), samd51)
+LINKER_SCRIPT=scripts/samd51j19a.ld
+BOOTLOADER_SIZE=16384
+SELF_LINKER_SCRIPT=scripts/samd51j19a_self.ld
+endif
+
+LDFLAGS= $(COMMON_FLAGS) \
+-Wall -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--unresolved-symbols=report-all -Wl,--warn-common \
+-Wl,--warn-section-align \
+-save-temps -nostartfiles \
+--specs=nano.specs --specs=nosys.specs
+BUILD_PATH=build/$(BOARD)
+INCLUDES = -I. -I./inc -I./inc/preprocessor
+INCLUDES += -I./boards/$(BOARD) -Ilib/cmsis/CMSIS/Include -Ilib/usb_msc
+INCLUDES += -I$(BUILD_PATH)
+
+
+ifeq ($(CHIP_FAMILY), samd21)
+INCLUDES += -Ilib/samd21/samd21a/include/
+endif
+
+ifeq ($(CHIP_FAMILY), samd51)
+ifeq ($(findstring SAME54,$(CHIP_VARIANT)),SAME54)
+INCLUDES += -Ilib/same54/include/
+else
+INCLUDES += -Ilib/samd51/include/
+endif
+endif
+
+COMMON_SRC = \
+	src/flash_$(CHIP_FAMILY).c \
+	src/init_$(CHIP_FAMILY).c \
+	src/startup_$(CHIP_FAMILY).c \
+	src/usart_sam_ba.c \
+	src/screen.c \
+	src/images.c \
+	src/utils.c
+
+SOURCES = $(COMMON_SRC) \
+	src/cdc_enumerate.c \
+	src/fat.c \
+	src/main.c \
+	src/msc.c \
+	src/sam_ba_monitor.c \
+	src/uart_driver.c \
+	src/hid.c \
+
+SELF_SOURCES = $(COMMON_SRC) \
+	src/selfmain.c
+
+OBJECTS = $(patsubst src/%.c,$(BUILD_PATH)/%.o,$(SOURCES))
+SELF_OBJECTS = $(patsubst src/%.c,$(BUILD_PATH)/%.o,$(SELF_SOURCES)) $(BUILD_PATH)/selfdata.o
+
+NAME=$(DI_BOOTLOADER_VERSION)
+EXECUTABLE=$(BUILD_PATH)/$(NAME).bin
+SELF_EXECUTABLE=$(BUILD_PATH)/Update_$(NAME).uf2
+SELF_EXECUTABLE_INO=$(BUILD_PATH)/Update_$(NAME).ino
+
+SUBMODULES = lib/uf2/README.md
+
+all: $(SUBMODULES) dirs $(EXECUTABLE) $(SELF_EXECUTABLE)
+
+r: run
+b: burn
+l: logs
+
+burn: all
+	node scripts/dbgtool.js fuses
+	node scripts/dbgtool.js $(BUILD_PATH)/$(NAME).bin
+
+run: burn wait logs
+
+# This currently only works on macOS with a BMP debugger attached.
+# It's meant to flash the bootloader in a loop.
+BMP = $(shell ls -1 /dev/cu.usbmodem* | head -1)
+BMP_ARGS = --nx -ex "set mem inaccessible-by-default off" -ex "set confirm off" -ex "target extended-remote $(BMP)" -ex "mon tpwr enable" -ex "mon swdp_scan" -ex "attach 1"
+GDB = arm-none-eabi-gdb
+
+bmp-flash: $(BUILD_PATH)/$(NAME).bin
+	@test "X$(BMP)" != "X"
+	$(GDB) $(BMP_ARGS) -ex "load" -ex "quit" $(BUILD_PATH)/$(NAME).elf | tee build/flash.log
+	@grep -q "Transfer rate" build/flash.log
+
+bmp-flashone:
+	while : ; do $(MAKE) bmp-flash && exit 0 ; sleep 1 ; done
+	afplay /System/Library/PrivateFrameworks/ScreenReader.framework/Versions/A/Resources/Sounds/Error.aiff
+
+bmp-loop:
+	while : ; do $(MAKE) bmp-flashone ; sleep 5 ; done
+
+bmp-gdb: $(BUILD_PATH)/$(NAME).bin
+	$(GDB) $(BMP_ARGS) $(BUILD_PATH)/$(NAME).elf
+
+$(BUILD_PATH)/flash.jlink: $(BUILD_PATH)/$(NAME).bin
+	echo " \n\
+r \n\
+h \n\
+loadbin \"$(BUILD_PATH)/$(NAME).bin\", 0x0 \n\
+verifybin \"$(BUILD_PATH)/$(NAME).bin\", 0x0 \n\
+r \n\
+qc \n\
+" > $(BUILD_PATH)/flash.jlink
+
+jlink-flash: $(BUILD_PATH)/$(NAME).bin $(BUILD_PATH)/flash.jlink
+	jlinkexe -if swd -device AT$(CHIP_VARIANT) -speed 4000 -CommanderScript $(BUILD_PATH)/flash.jlink
+
+wait:
+	sleep 5
+
+logs:
+	node scripts/dbgtool.js $(BUILD_PATH)/$(NAME).map
+
+selflogs:
+	node scripts/dbgtool.js $(BUILD_PATH)/Update_$(NAME).map
+
+dirs:
+	@echo "Building $(BOARD)"
+	-@mkdir -p $(BUILD_PATH)
+
+$(EXECUTABLE): $(OBJECTS)
+	$(CC) -L$(BUILD_PATH) $(LDFLAGS) \
+		 -T$(LINKER_SCRIPT) \
+		 -Wl,-Map,$(BUILD_PATH)/$(NAME).map -o $(BUILD_PATH)/$(NAME).elf $(OBJECTS)
+	arm-none-eabi-objcopy -O binary $(BUILD_PATH)/$(NAME).elf $@
+	@echo
+	-@arm-none-eabi-size $(BUILD_PATH)/$(NAME).elf | awk '{ s=$$1+$$2; print } END { print ""; print "Space left: " ($(BOOTLOADER_SIZE)-s) }'
+	@echo
+
+$(BUILD_PATH)/uf2_version.h: Makefile
+	echo "#define UF2_VERSION_BASE \"$(UF2_VERSION_BASE)\""> $@
+
+$(SELF_EXECUTABLE): $(SELF_OBJECTS)
+	$(CC) -L$(BUILD_PATH) $(LDFLAGS) \
+		 -T$(SELF_LINKER_SCRIPT) \
+		 -Wl,-Map,$(BUILD_PATH)/Update_$(NAME).map -o $(BUILD_PATH)/Update_$(NAME).elf $(SELF_OBJECTS)
+	arm-none-eabi-objcopy -O binary $(BUILD_PATH)/Update_$(NAME).elf $(BUILD_PATH)/Update_$(NAME).bin
+	python2 lib/uf2/utils/uf2conv.py -b $(BOOTLOADER_SIZE) -c -o $@ $(BUILD_PATH)/Update_$(NAME).bin
+
+$(BUILD_PATH)/%.o: src/%.c $(wildcard inc/*.h boards/*/*.h) $(BUILD_PATH)/uf2_version.h
+	echo "$<"
+	$(CC) $(CFLAGS) $(BLD_EXTA_FLAGS) $(INCLUDES) $< -o $@
+
+$(BUILD_PATH)/%.o: $(BUILD_PATH)/%.c
+	$(CC) $(CFLAGS) $(BLD_EXTA_FLAGS) $(INCLUDES) $< -o $@
+
+$(BUILD_PATH)/selfdata.c: $(EXECUTABLE) scripts/gendata.py src/sketch.cpp
+	python2 scripts/gendata.py $(BOOTLOADER_SIZE) $(EXECUTABLE)
+
+clean:
+	rm -rf build
+
+gdb:
+	arm-none-eabi-gdb $(BUILD_PATH)/$(NAME).elf
+
+tui:
+	arm-none-eabi-gdb -tui $(BUILD_PATH)/$(NAME).elf
+
+%.asmdump: %.o
+	arm-none-eabi-objdump -d $< > $@
+
+applet0: $(BUILD_PATH)/flash.asmdump
+	node scripts/genapplet.js $< flash_write
+
+applet1: $(BUILD_PATH)/utils.asmdump
+	node scripts/genapplet.js $< resetIntoApp
+
+drop-board: all
+	@echo "*** Copy files for $(BOARD)"
+	mkdir -p build/drop
+	rm -rf build/drop/$(BOARD)
+	mkdir -p build/drop/$(BOARD)
+	cp $(SELF_EXECUTABLE) build/drop/$(BOARD)/
+	cp $(EXECUTABLE) build/drop/$(BOARD)/
+	cp $(SELF_EXECUTABLE_INO) build/drop/$(BOARD)/
+	cp boards/$(BOARD)/board_config.h build/drop/$(BOARD)/
+
+drop-pkg:
+	mv build/drop build/uf2-samd21-$(UF2_VERSION_BASE)
+	cp bin-README.md build/uf2-samd21-$(UF2_VERSION_BASE)/README.md
+	cd build; 7z a uf2-samd21-$(UF2_VERSION_BASE).zip uf2-samd21-$(UF2_VERSION_BASE)
+	rm -rf build/uf2-samd21-$(UF2_VERSION_BASE)
+
+all-boards:
+	for f in `cd boards; ls` ; do "$(MAKE)" BOARD=$$f drop-board || break; done
+
+drop: all-boards drop-pkg
+
+$(SUBMODULES):
+	git submodule update --init --recursive