This is a procedural macro (originally a constexpr function (const fn)) to calculate CAN bus timings for different STM32 MCUs bxcan module. It can be useful to calculate timings for different MCUs, but one should write a function formatting the calculated values into appropriate register value.
This project is based on a similar piece of code from modm project. You can find out more on bit timings here
```rust
use canbustimings::cantimingsbxcan;
const fn can0timings() -> u32{ cantimings_bxcan!(10.mhz(), 1.mhz()) }
fn main(){ // ... CAN hardware initialization can0_timings(); } ```