i2c-tools Business Card

This project is inspired by I2CDetect Business Card.

In this project, we are using a RISC-V based CH32V203 MCU to scan the I2C bus. With a USB device controller, we can develop PC-side software to enable additional applications, such as i2ctransfer, and more.

TODO

• Basic one-time scan
• Continuous scan
• refactor and build leds lib
• PC-side software support
• linux usb to i2c adapter driver
• linux MFD (Multi-Function Device) driver (GPIO/I2C/SPI/UART)

Build

install dependencies

rustup target add riscv32imac-unknown-none-elf

cargo install --locked wlink

cargo build -r

Flash firmware

With a WCH-Link(E) probe connected to your target and then:

cargo run -r

Run examples

see examples dir

cargo run -r --example i2c-ssd1306