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This is just some STM32F4DISCOVERY demo application written in Rust.
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README.md

stm32f4disc-demo

This is just some STM32F4DISCOVERY demo application using Rust. It has a simple serial command-interface for controlling (via GPIO) what the LED ring does: cycle clock-wise, counter clock-wise, or follow the accelerometer. The accelerometer is accessed via SPI.

The project also shows how to do unit testing and how to use GitLab CI.

Serial interface

The serial interface is configured on USART 2 and can be accessed using, for example, an USB-to-serial cable connected to a ground pin, and RX to PA2 and TX to PA3.

The interface will output the following lines:

  • init after initialization has finished
  • button when the user button has been pressed
  • level when the board is being held in a perfect level position (when in acceleration mode)

The following lines can be given as commands:

  • on to turn all the leds on (and disable accelerometer/cycle mode)
  • off to turn all the leds off (and disable accelerometer/cycle mode)
  • accel to switch to accelerometer mode
  • cycle to switch to cycle mode
  • stop to freeze the LEDs in the current position

License

0-clause BSD license.