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//! Example of using async I2C
//!
//! This uses the virtual COM port provided on the LP-MSPM0G3507 board.
#![no_std]
#![no_main]
use defmt::*;
use embassy_executor::Spawner;
use embassy_mspm0::bind_interrupts;
use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c, InterruptHandler};
use embassy_mspm0::peripherals::I2C1;
use {defmt_rtt as _, panic_halt as _};
const ADDRESS: u8 = 0x6a;
bind_interrupts!(struct Irqs {
I2C1 => InterruptHandler<I2C1>;
});
#[embassy_executor::main]
async fn main(_spawner: Spawner) -> ! {
let p = embassy_mspm0::init(Default::default());
let instance = p.I2C1;
let scl = p.PB2;
let sda = p.PB3;
let mut config = Config::default();
config.clock_source = ClockSel::BusClk;
config.bus_speed = BusSpeed::FastMode;
let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, config));
let mut to_read = [0u8; 1];
let to_write: u8 = 0x0F;
match i2c.async_write_read(ADDRESS, &[to_write], &mut to_read).await {
Ok(()) => info!("Register {}: {}", to_write, to_read[0]),
Err(e) => error!("I2c Error: {:?}", e),
}
loop {}
}
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