28 lines
735 B
Rust
28 lines
735 B
Rust
#![no_std]
|
|
#![no_main]
|
|
|
|
use defmt::*;
|
|
use embassy_executor::Spawner;
|
|
use embassy_stm32::i2c::{Error, I2c};
|
|
use embassy_stm32::time::Hertz;
|
|
use {defmt_rtt as _, panic_probe as _};
|
|
|
|
const ADDRESS: u8 = 0x5F;
|
|
const WHOAMI: u8 = 0x0F;
|
|
|
|
#[embassy_executor::main]
|
|
async fn main(_spawner: Spawner) {
|
|
info!("Hello world!");
|
|
let p = embassy_stm32::init(Default::default());
|
|
|
|
let mut i2c = I2c::new_blocking(p.I2C2, p.PB10, p.PB11, Hertz(100_000), Default::default());
|
|
|
|
let mut data = [0u8; 1];
|
|
|
|
match i2c.blocking_write_read(ADDRESS, &[WHOAMI], &mut data) {
|
|
Ok(()) => info!("Whoami: {}", data[0]),
|
|
Err(Error::Timeout) => error!("Operation timed out"),
|
|
Err(e) => error!("I2c Error: {:?}", e),
|
|
}
|
|
}
|