swaits
18b509344c
- build.rs discovers boards by content (implements LoRaBoard), not exclusion lists - build.rs auto-discovers helper modules by scanning board files for use super::<helper> - Jinja template dynamically generates cfg gates for helpers - Updated PORTING.md for new architecture (hal/, driver/, BoardParts, associated types) - Zero manual template editing needed when adding boards to existing MCU families
DongLoRa Firmware
Embedded Rust firmware for DongLoRa boards. Exposes the LoRa radio over USB CDC-ACM using a COBS-framed binary protocol.
Building
just setup # one-time toolchain install
just build heltec_v4 # build for a specific board
just flash heltec_v4 # build + flash
just check-all # compile-check all boards
just clippy heltec_v4 # lint
just test # host-side protocol unit tests
All commands are run from the firmware/ directory.
Supported Boards
| Board | MCU | Radio | Target |
|---|---|---|---|
| Heltec V3 | ESP32-S3 | SX1262 | xtensa-esp32s3-none-elf |
| Heltec V4 | ESP32-S3 | SX1262 | xtensa-esp32s3-none-elf |
| RAK WisBlock 4631 | nRF52840 | SX1262 | thumbv7em-none-eabihf |
Adding a Board
See src/board/PORTING.md.
Protocol
See PROTOCOL.md for the complete wire format specification.