GReX Frontend Module

You'll need:

• Rust
• ARM Rust toolchain
  • rustup target add thumbv7em-none-eabihf
• just
  • cargo install just
• cross (which requires either Docker or Podman)
  • cargo install cross --git https://github.com/cross-rs/cross
• probe-rs
  • cargo install probe-rs --features cli,ftdi

Hardware

For assembly, access the interactive BOM here

Software

Building

Build for the current architecture

just build-cli

For the RPi in the box

just build-cli-pi

The resulting binary is in target/armv7-unknown-linux-musleabihf/release/cli which you can copy to the Pi, chmod +x if you need, and run.

Firmware

Building

just build-firmware

The resulting binary (elf) is in target/thumbv6m-none-eabi/release/firmware

Flashing

Using a JLink in CMSIS-DAP mode

just flash-firmware