embassy/examples/nrf52840/src/bin/spis.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use defmt::info;
use embassy_executor::Spawner;
use embassy_nrf::interrupt;
use embassy_nrf::spis::{Config, Spis};
use {defmt_rtt as _, panic_probe as _};

#[embassy_executor::main]
async fn main(_spawner: Spawner) {
    let p = embassy_nrf::init(Default::default());
    info!("Running!");

    let irq = interrupt::take!(SPIM2_SPIS2_SPI2);
    let mut spis = Spis::new(p.SPI2, irq, p.P0_31, p.P0_29, p.P0_28, p.P0_30, Config::default());

    loop {
        let mut rx_buf = [0_u8; 64];
        let tx_buf = [1_u8, 2, 3, 4, 5, 6, 7, 8];
        if let Ok((n_rx, n_tx)) = spis.transfer(&mut rx_buf, &tx_buf).await {
            info!("RX: {:?}", rx_buf[..n_rx]);
            info!("TX: {:?}", tx_buf[..n_tx]);
        }
    }
}