Add WIP Variant.

Author: SFE-Brudnerd

boards.txt

@@ -206,3 +206,51 @@ muxto.upload.maximum_size=262144
 muxto.upload.maximum_data_size=32768
 
 ##############################################################
+
+thingplus_ra6m5.name=SparkFun Thing Plus RA6M5
+thingplus_ra6m5.build.core=arduino
+thingplus_ra6m5.build.crossprefix=arm-none-eabi-
+thingplus_ra6m5.build.compiler_path={runtime.tools.arm-none-eabi-gcc-7-2017q4.path}/bin/
+
+thingplus_ra6m5.build.variant=THINGPLUS_RA6M5
+thingplus_ra6m5.build.mcu=cortex-m33
+thingplus_ra6m5.build.architecture=cortex-m33
+thingplus_ra6m5.build.fpu=-mfpu=fpv5-sp-d16
+thingplus_ra6m5.build.float-abi=-mfloat-abi=hard
+
+thingplus_ra6m5.build.board=THINGPLUS_RA6M5
+thingplus_ra6m5.build.defines=-DF_CPU=200000000
+thingplus_ra6m5.vid.0=0x1b4f
+thingplus_ra6m5.pid.0=0x0036
+thingplus_ra6m5.vid.1=0x1b4f
+thingplus_ra6m5.pid.1=0x0037
+thingplus_ra6m5.upload_port.0.vid=0x1b4f
+thingplus_ra6m5.upload_port.0.pid=0x0036
+thingplus_ra6m5.upload_port.1.vid=0x1b4f
+thingplus_ra6m5.upload_port.1.pid=0x0037
+
+thingplus_ra6m5.compiler.fsp.defines={build.variant.path}/defines.txt
+thingplus_ra6m5.compiler.fsp.ldflags={build.variant.path}/ldflags.txt
+thingplus_ra6m5.compiler.fsp.cflags=-mthumb "@{compiler.fsp.defines}"
+thingplus_ra6m5.compiler.fsp.cxxflags=-mthumb "@{compiler.fsp.defines}"
+thingplus_ra6m5.compiler.tinyusb.cflags=-DCFG_TUSB_MCU=OPT_MCU_RAXXX
+thingplus_ra6m5.compiler.tinyusb.cxxflags=-DCFG_TUSB_MCU=OPT_MCU_RAXXX
+thingplus_ra6m5.compiler.fsp.includes={build.variant.path}/includes.txt
+thingplus_ra6m5.compiler.fsp.extra_ldflags=-lstdc++ -lsupc++ -lm -lc -lgcc -lnosys
+thingplus_ra6m5.compiler.fsp="{build.variant.path}/libs/libfsp.a"
+
+thingplus_ra6m5.upload.tool=dfu-util
+thingplus_ra6m5.upload.tool.default=dfu-util
+thingplus_ra6m5.upload.protocol=
+thingplus_ra6m5.upload.transport=
+thingplus_ra6m5.upload.vid=0x1b4f
+thingplus_ra6m5.upload.pid=0x0036
+thingplus_ra6m5.upload.address=0x00010000
+thingplus_ra6m5.upload.interface=0
+thingplus_ra6m5.upload.use_1200bps_touch=false
+thingplus_ra6m5.upload.wait_for_upload_port=false
+thingplus_ra6m5.upload.native_usb=true
+thingplus_ra6m5.upload.maximum_size=2097152
+thingplus_ra6m5.upload.maximum_data_size=523624
+
+##############################################################

bootloaders/THINGPLUS_RA6M5/README.md

@@ -0,0 +1,27 @@
+:floppy_disk: `bootloaders/THINGPLUS_RA6M5`
+====================================
+Compiled with
+```bash
+git clone https://github.com/arduino/arduino-renesas-bootloader
+git clone https://github.com/hathach/tinyusb
+cd tinyusb
+# This step is temporary
+patch -p1 < ../arduino-renesas-bootloader/0001-fix-arduino-bootloaders.patch
+python tools/get_deps.py ra
+cd ..
+cd arduino-renesas-bootloader
+TINYUSB_ROOT=$PWD/../tinyusb make -f Makefile.thingplus
+```
+
+:rocket: `How to load bootloader`
+====================================
+
+Hold the boot button down and plug in the Thing Plus RA6M5.
+The board will enumerate as Renesas RA USB Boot.
+
+Then flash the bootloader with [`rfp-cli`](https://www.renesas.com/us/en/software-tool/renesas-flash-programmer-programming-gui#download)
+```
+rfp-cli -device ra -port $portname -p dfu_c33.hex
+```
+
+Otherwise, the same hex file can be loaded through the SWD port (using a Jlink for example)