2021-10-20 12:40:16 +00:00
|
|
|
#![no_std]
|
|
|
|
#![no_main]
|
|
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
|
2022-04-02 02:35:06 +00:00
|
|
|
use defmt_rtt as _; // global logger
|
|
|
|
use panic_probe as _;
|
2021-10-20 12:40:16 +00:00
|
|
|
|
2022-04-02 02:35:06 +00:00
|
|
|
use defmt::*;
|
2021-10-20 12:40:16 +00:00
|
|
|
use embassy::executor::Spawner;
|
|
|
|
use embassy_stm32::i2c::I2c;
|
|
|
|
use embassy_stm32::interrupt;
|
|
|
|
use embassy_stm32::time::Hertz;
|
|
|
|
use embassy_stm32::Peripherals;
|
|
|
|
|
|
|
|
const ADDRESS: u8 = 0x5F;
|
|
|
|
const WHOAMI: u8 = 0x0F;
|
|
|
|
|
|
|
|
#[embassy::main]
|
|
|
|
async fn main(_spawner: Spawner, p: Peripherals) -> ! {
|
|
|
|
let irq = interrupt::take!(I2C2_EV);
|
|
|
|
let mut i2c = I2c::new(
|
|
|
|
p.I2C2,
|
|
|
|
p.PB10,
|
|
|
|
p.PB11,
|
|
|
|
irq,
|
|
|
|
p.DMA1_CH4,
|
|
|
|
p.DMA1_CH5,
|
|
|
|
Hertz(100_000),
|
|
|
|
);
|
|
|
|
|
|
|
|
let mut data = [0u8; 1];
|
|
|
|
unwrap!(i2c.write_read(ADDRESS, &[WHOAMI], &mut data).await);
|
|
|
|
info!("Whoami: {}", data[0]);
|
|
|
|
}
|