81 lines
2.7 KiB
Rust
81 lines
2.7 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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#[path = "../common.rs"]
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mod common;
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use common::*;
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use defmt::assert_eq;
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use embassy_executor::Spawner;
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use embassy_stm32::dma::NoDma;
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use embassy_stm32::spi::{self, Spi};
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use embassy_stm32::time::Hertz;
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let p = embassy_stm32::init(config());
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info!("Hello World!");
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#[cfg(feature = "stm32f103c8")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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#[cfg(feature = "stm32f429zi")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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#[cfg(feature = "stm32h755zi")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PB5, p.PA6);
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#[cfg(feature = "stm32g491re")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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#[cfg(feature = "stm32g071rb")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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#[cfg(feature = "stm32wb55rg")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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#[cfg(feature = "stm32u585ai")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PE13, p.PE15, p.PE14);
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#[cfg(feature = "stm32h563zi")]
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let (spi, sck, mosi, miso) = (p.SPI4, p.PE12, p.PE14, p.PE13);
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#[cfg(feature = "stm32c031c6")]
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let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
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let mut spi = Spi::new(
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spi,
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sck, // Arduino D13
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mosi, // Arduino D11
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miso, // Arduino D12
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NoDma,
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NoDma,
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Hertz(1_000_000),
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spi::Config::default(),
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);
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let data: [u8; 9] = [0x00, 0xFF, 0xAA, 0x55, 0xC0, 0xFF, 0xEE, 0xC0, 0xDE];
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// Arduino pins D11 and D12 (MOSI-MISO) are connected together with a 1K resistor.
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// so we should get the data we sent back.
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let mut buf = [0; 9];
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spi.blocking_transfer(&mut buf, &data).unwrap();
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assert_eq!(buf, data);
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spi.blocking_transfer_in_place(&mut buf).unwrap();
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assert_eq!(buf, data);
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// Check read/write don't hang. We can't check they transfer the right data
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// without fancier test mechanisms.
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spi.blocking_write(&buf).unwrap();
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spi.blocking_read(&mut buf).unwrap();
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spi.blocking_write(&buf).unwrap();
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spi.blocking_read(&mut buf).unwrap();
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spi.blocking_write(&buf).unwrap();
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// Check transfer doesn't break after having done a write, due to garbage in the FIFO
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spi.blocking_transfer(&mut buf, &data).unwrap();
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assert_eq!(buf, data);
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// Check zero-length operations, these should be noops.
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spi.blocking_transfer::<u8>(&mut [], &[]).unwrap();
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spi.blocking_transfer_in_place::<u8>(&mut []).unwrap();
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spi.blocking_read::<u8>(&mut []).unwrap();
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spi.blocking_write::<u8>(&[]).unwrap();
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info!("Test OK");
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cortex_m::asm::bkpt();
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}
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