embassy/examples/nrf/src/bin/twim.rs
Dario Nieuwenhuis de016e8456 Remove trait_alias, allow(incomplete_features).
trait_alias seems unused. no idea why it's there.
2021-09-03 17:00:58 +02:00

33 lines
812 B
Rust

//! Example on how to read a 24C/24LC i2c eeprom.
//!
//! Connect SDA to P0.03, SCL to P0.04
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
#[path = "../example_common.rs"]
mod example_common;
use defmt::{panic, *};
use embassy::executor::Spawner;
use embassy_nrf::twim::{self, Twim};
use embassy_nrf::{interrupt, Peripherals};
const ADDRESS: u8 = 0x50;
#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
info!("Initializing TWI...");
let config = twim::Config::default();
let irq = interrupt::take!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
let mut twi = Twim::new(p.TWISPI0, irq, p.P0_03, p.P0_04, config);
info!("Reading...");
let mut buf = [0u8; 16];
unwrap!(twi.write_then_read(ADDRESS, &mut [0x00], &mut buf));
info!("Read: {=[u8]:x}", buf);
}