https://github.com/birkenfeld/stm_freqctr

https://github.com/birkenfeld/stm_freqctr

Last synced: about 1 month ago
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• Host: GitHub
• URL: https://github.com/birkenfeld/stm_freqctr
• Owner: birkenfeld
• Created: 2019-05-19T09:27:25.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2021-05-31T13:58:06.000Z (over 3 years ago)
• Last Synced: 2024-10-31T10:43:04.803Z (3 months ago)
• Language: Rust
• Homepage:
• Size: 17.6 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## Frequency counter on a STM32F303

Uses PA0 as the input pin, which triggers counting on TIM2.

Writes output to USART2 on pins PA2/PA3, which are connected

to the USB-ACM port if using a Nucleo board.

The user-LED on PA5 toggles every second to show operation.

### Build

Using nightly Rust and cargo, just do a `cargo build --release`.

### Flash

The default method uses openocd and GDB.  Start openocd using a config

matching your programming adapter (the provided `openocd.cfg` assumes

ST-Link v2).  Then `cargo run --release` runs GDB, flashes and runs the

image.  `openocd` should just keep running in the background.

An alternate way is to use the `st-flash` utility.  To use this from

`cargo run --release`, change the runner in `.cargo/config`.