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#![no_std]
#![no_main]
use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::i2c::{Error, I2c};
use embassy_stm32::{bind_interrupts, i2c, peripherals};
use {defmt_rtt as _, panic_probe as _};
const ADDRESS: u8 = 0x5F;
const WHOAMI: u8 = 0x0F;
bind_interrupts!(struct Irqs {
I2C2_EV => i2c::EventInterruptHandler<peripherals::I2C2>;
I2C2_ER => i2c::ErrorInterruptHandler<peripherals::I2C2>;
});
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello world!");
let p = embassy_stm32::init(Default::default());
let mut i2c = I2c::new(
p.I2C2,
p.PB10,
p.PB11,
Irqs,
p.GPDMA1_CH4,
p.GPDMA1_CH5,
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),
}
}
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