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-rw-r--r--examples/nrf/src/bin/twim.rs35
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1//! Example on how to read a 24C/24LC i2c eeprom.
2//!
3//! Connect SDA to P0.03, SCL to P0.04
4
5#![no_std]
6#![no_main]
7#![feature(min_type_alias_impl_trait)]
8#![feature(impl_trait_in_bindings)]
9#![feature(type_alias_impl_trait)]
10#![allow(incomplete_features)]
11
12#[path = "../example_common.rs"]
13mod example_common;
14
15use defmt::{panic, *};
16use embassy::executor::Spawner;
17use embassy_nrf::twim::{self, Twim};
18use embassy_nrf::{interrupt, Peripherals};
19
20const ADDRESS: u8 = 0x50;
21
22#[embassy::main]
23async fn main(_spawner: Spawner, p: Peripherals) {
24 info!("Initializing TWI...");
25 let config = twim::Config::default();
26 let irq = interrupt::take!(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0);
27 let mut twi = Twim::new(p.TWISPI0, irq, p.P0_03, p.P0_04, config);
28
29 info!("Reading...");
30
31 let mut buf = [0u8; 16];
32 twi.write_then_read(ADDRESS, &mut [0x00], &mut buf).unwrap();
33
34 info!("Read: {=[u8]:x}", buf);
35}