Setup Nix on macOS: https://zero-to-nix.com/start/install
| Command | Description |
|---|---|
nix build .#rtthread.bsp.wch.risc-v.ch32v208w-r0 |
Builds the ch32v208w-r0 example project using the MRS Toolchain for macOS |
nix run .#wchisp.flash |
Flash a board connected via USB-C and in download mode |
nix run .#wch-link.flash |
Flash a board connected via WCH Link and in download mode |
- Build, flash, and blink onboard LED with example application using the Nix interface
- Configure RT-Thread with
menuconfigusing the Nix interface- Enable ESP module for wifi connectivity
- Enable Arduino compatability mode
- Build blink project using
zig cc - Port blink to
main.zigand build withbuild.zig - Implement I2C OLED binary clock
This project started with the intention to build a simple binary clock using RT-Thread and Zig. Due in part to its first-class C interop, Zig was chosen to evaluate its tooling, build system, and its ease of use as a drop-in gcc replacement.
Though, after spending significant time setting up tooling, piecing together documentation, and verifying board health/features, focus shifted more to developer experience than on project implementation.
Once receiving a CH32V208WBU6 development board from WCH as part of the RT-Thread hackathon/competition, my first todo was to verify the board was healthy. This was met with difficulty in building provided example applications, configuring multiple IDEs: RT-Thread Studio and MounRiver Studio, and finding the necessary tools to flash/debug the dev board.
There was also a separate interest in developing on a Macbook Pro M1 with VSCode instead of Windows 10 with Eclipse-based IDEs. This lead to the setup of a Nix project to aid in managing tools, environments, and any cross-building needs that may surface.