77 lines
2.4 KiB
Rust
77 lines
2.4 KiB
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(type_alias_impl_trait)]
|
|
|
|
#[path = "../example_common.rs"]
|
|
mod example_common;
|
|
use defmt::assert_eq;
|
|
use embassy_executor::Spawner;
|
|
use embassy_stm32::dma::NoDma;
|
|
use embassy_stm32::spi::{self, Spi};
|
|
use embassy_stm32::time::Hertz;
|
|
use example_common::*;
|
|
|
|
#[embassy_executor::main]
|
|
async fn main(_spawner: Spawner) {
|
|
let p = embassy_stm32::init(config());
|
|
info!("Hello World!");
|
|
|
|
#[cfg(feature = "stm32f103c8")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PA7, p.PA6);
|
|
#[cfg(feature = "stm32f429zi")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PA7, p.PA6);
|
|
#[cfg(feature = "stm32h755zi")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PB5, p.PA6);
|
|
#[cfg(feature = "stm32g491re")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PA7, p.PA6);
|
|
#[cfg(feature = "stm32g071rb")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PA7, p.PA6);
|
|
#[cfg(feature = "stm32wb55rg")]
|
|
let (sck, mosi, miso) = (p.PA5, p.PA7, p.PA6);
|
|
#[cfg(feature = "stm32u585ai")]
|
|
let (sck, mosi, miso) = (p.PE13, p.PE15, p.PE14);
|
|
|
|
let mut spi = Spi::new(
|
|
p.SPI1,
|
|
sck, // Arduino D13
|
|
mosi, // Arduino D11
|
|
miso, // Arduino D12
|
|
NoDma,
|
|
NoDma,
|
|
Hertz(1_000_000),
|
|
spi::Config::default(),
|
|
);
|
|
|
|
let data: [u8; 9] = [0x00, 0xFF, 0xAA, 0x55, 0xC0, 0xFF, 0xEE, 0xC0, 0xDE];
|
|
|
|
// Arduino pins D11 and D12 (MOSI-MISO) are connected together with a 1K resistor.
|
|
// so we should get the data we sent back.
|
|
let mut buf = data;
|
|
spi.blocking_transfer(&mut buf, &data).unwrap();
|
|
assert_eq!(buf, data);
|
|
|
|
spi.blocking_transfer_in_place(&mut buf).unwrap();
|
|
assert_eq!(buf, data);
|
|
|
|
// Check read/write don't hang. We can't check they transfer the right data
|
|
// without fancier test mechanisms.
|
|
spi.blocking_write(&buf).unwrap();
|
|
spi.blocking_read(&mut buf).unwrap();
|
|
spi.blocking_write(&buf).unwrap();
|
|
spi.blocking_read(&mut buf).unwrap();
|
|
spi.blocking_write(&buf).unwrap();
|
|
|
|
// Check transfer doesn't break after having done a write, due to garbage in the FIFO
|
|
spi.blocking_transfer(&mut buf, &data).unwrap();
|
|
assert_eq!(buf, data);
|
|
|
|
// Check zero-length operations, these should be noops.
|
|
spi.blocking_transfer::<u8>(&mut [], &[]).unwrap();
|
|
spi.blocking_transfer_in_place::<u8>(&mut []).unwrap();
|
|
spi.blocking_read::<u8>(&mut []).unwrap();
|
|
spi.blocking_write::<u8>(&[]).unwrap();
|
|
|
|
info!("Test OK");
|
|
cortex_m::asm::bkpt();
|
|
}
|