m5stamp-c3wamr

This repository demonstrates the use of WebAssembly Micro Runtime (WAMR) on M5Stamp C3 to run WebAssembly applications.

🎥 Demo Movie

Require

• Setup ESF-IDF release/v5.1

get_idf or (Windows) ESP-IDF command prompt

# Linux or macOS ->
$ alias get_idf='. $HOME/esp/esp-idf/export.sh'
$ get_idf
# <-

Detecting the Python interpreter
... snip ...
Done! You can now compile ESP-IDF projects.
Go to the project directory and run:

  idf.py build

$ echo ${IDF_PATH}
/home/hiromasa/devel/toolchain/esp/esp-idf

$ riscv32-esp-elf-gcc -v
Using built-in specs.
COLLECT_GCC=riscv32-esp-elf-gcc
... snip ...
gcc version 12.2.0 (crosstool-NG esp-12.2.0_20230208)

Build

1. git clone and build (Please add --recursive)

git clone --recursive https://github.com/h1romas4/m5stamp-c3warm
cd m5stamp-c3warm
idf.py build

2. Write Partition table

idf.py partition-table-flash

3. Write WebAssembly(.wasm) to SPIFFS

parttool.py write_partition --partition-name=wasm --partition-subtype=spiffs --input resources/spiffs_wasm.bin

4. Write main program to go!

idf.py flash monitor

Note

Create SPIFFS partition file from file system

python ${IDF_PATH}/components/spiffs/spiffsgen.py 0x20000 resources/wasm resources/spiffs_wasm.bin

$ cat partitions.csv | grep spiffs
wasm,     data, spiffs,  0x310000, 0x20000

Build (.wasm to .aot)

(WIP) This repository does not yet support loading of riscv32 AOT file.

$ wamrc --version
wamrc 2.1.1
$ cd resources/wasm/
$ wamrc --target=riscv32 -o 3dcube-riscv32.aot 3dcube.wasm
Create AoT compiler with:
  target:        riscv32
  target cpu:
  target triple: riscv32-pc-linux-ilp32d
  cpu features:  +d
  opt level:     3
  size level:    3
  output format: AoT file
Compile success, file 3dcube-riscv32.aot was generated.

Schematic

https://github.com/h1romas4/m5stamp-c3dev

M5Stack Core2 (ESP32/Xtensa) version

https://github.com/h1romas4/m5stamp-c3wamr/tree/target-m5stack

Dependencies

Thanks for all the open source.

Name	Version	License
esp-idf	release/v5.1	BSD License
arduino-esp32	3.0.2	LGPL-2.1 License
WebAssembly Micro Runtime (WAMR)	2.1.1	Apache-2.0 License
AssemblyScript	0.27.29	Apache-2.0 License
Adafruit_GFX	1.11.9	BSD License
Adafruit_BusIO	1.14.5	MIT License
Adafruit-ST7735-Library	1.10.3	MIT License

License

MIT License