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stm32/spi: restrict txonly_nosck to SPIv1, it hangs in other versions.

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This commit is contained in:
Dario Nieuwenhuis 2024-05-31 22:16:30 +02:00
parent 7baa14371b
commit 339dd85968
5 changed files with 94 additions and 46 deletions
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2
embassy-stm32/src/spi/mod.rs
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@ -465,6 +465,7 @@ impl<'d> Spi<'d, Blocking> {
/// Create a new SPI driver, in TX-only mode, without SCK pin.
///
/// This can be useful for bit-banging non-SPI protocols.
#[cfg(any(spi_v1, spi_f1))] // no SCK pin causes it to hang on spiv2+ for unknown reasons.
pub fn new_blocking_txonly_nosck<T: Instance>(
peri: impl Peripheral<P = T> + 'd,
mosi: impl Peripheral<P = impl MosiPin<T>> + 'd,
@ -549,6 +550,7 @@ impl<'d> Spi<'d, Async> {
/// Create a new SPI driver, in TX-only mode, without SCK pin.
///
/// This can be useful for bit-banging non-SPI protocols.
#[cfg(any(spi_v1, spi_f1))] // no SCK pin causes it to hang on spiv2+ for unknown reasons.
pub fn new_txonly_nosck<T: Instance>(
peri: impl Peripheral<P = T> + 'd,
mosi: impl Peripheral<P = impl MosiPin<T>> + 'd,

2
examples/stm32g0/src/bin/spi_neopixel.rs
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@ -76,7 +76,7 @@ async fn main(_spawner: Spawner) {
let mut config = Config::default();
config.frequency = Hertz(4_000_000);
let mut spi = Spi::new_txonly_nosck(p.SPI1, p.PB5, p.DMA1_CH3, config);
let mut spi = Spi::new_txonly(p.SPI1, p.PB3, p.PB5, p.DMA1_CH3, config); // SCK is unused.
let mut neopixels = Ws2812::new();

30
tests/stm32/Cargo.toml
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@ -7,34 +7,36 @@ autobins = false
[features]
stm32c031c6 = ["embassy-stm32/stm32c031c6", "cm0", "not-gpdma"]
stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]
stm32f207zg = ["embassy-stm32/stm32f207zg", "chrono", "not-gpdma", "eth", "rng"]
stm32f103c8 = ["embassy-stm32/stm32f103c8", "spi-v1", "not-gpdma"]
stm32f207zg = ["embassy-stm32/stm32f207zg", "spi-v1", "chrono", "not-gpdma", "eth", "rng"]
stm32f303ze = ["embassy-stm32/stm32f303ze", "chrono", "not-gpdma"]
stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac", "rng"]
stm32f446re = ["embassy-stm32/stm32f446re", "chrono", "stop", "can", "not-gpdma", "dac", "sdmmc"]
stm32f429zi = ["embassy-stm32/stm32f429zi", "spi-v1", "chrono", "eth", "stop", "can", "not-gpdma", "dac", "rng"]
stm32f446re = ["embassy-stm32/stm32f446re", "spi-v1", "chrono", "stop", "can", "not-gpdma", "dac", "sdmmc"]
stm32f767zi = ["embassy-stm32/stm32f767zi", "chrono", "not-gpdma", "eth", "rng"]
stm32g071rb = ["embassy-stm32/stm32g071rb", "cm0", "not-gpdma", "dac", "ucpd"]
stm32g491re = ["embassy-stm32/stm32g491re", "chrono", "stop", "not-gpdma", "rng", "fdcan", "cordic"]
stm32h563zi = ["embassy-stm32/stm32h563zi", "chrono", "eth", "rng", "fdcan", "hash", "cordic", "stop"]
stm32h753zi = ["embassy-stm32/stm32h753zi", "chrono", "not-gpdma", "eth", "rng", "fdcan", "hash", "cryp"]
stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac", "rng", "fdcan", "hash", "cryp"]
stm32h7a3zi = ["embassy-stm32/stm32h7a3zi", "not-gpdma", "rng", "fdcan"]
stm32h563zi = ["embassy-stm32/stm32h563zi", "spi-v345", "chrono", "eth", "rng", "fdcan", "hash", "cordic", "stop"]
stm32h753zi = ["embassy-stm32/stm32h753zi", "spi-v345", "chrono", "not-gpdma", "eth", "rng", "fdcan", "hash", "cryp"]
stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "spi-v345", "chrono", "not-gpdma", "eth", "dac", "rng", "fdcan", "hash", "cryp"]
stm32h7a3zi = ["embassy-stm32/stm32h7a3zi", "spi-v345", "not-gpdma", "rng", "fdcan"]
stm32l073rz = ["embassy-stm32/stm32l073rz", "cm0", "not-gpdma", "rng"]
stm32l152re = ["embassy-stm32/stm32l152re", "chrono", "not-gpdma"]
stm32l152re = ["embassy-stm32/stm32l152re", "spi-v1", "chrono", "not-gpdma"]
stm32l496zg = ["embassy-stm32/stm32l496zg", "not-gpdma", "rng"]
stm32l4a6zg = ["embassy-stm32/stm32l4a6zg", "chrono", "not-gpdma", "rng", "hash"]
stm32l4r5zi = ["embassy-stm32/stm32l4r5zi", "chrono", "not-gpdma", "rng"]
stm32l552ze = ["embassy-stm32/stm32l552ze", "not-gpdma", "rng", "hash"]
stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono", "rng", "hash", "cordic"]
stm32u5a5zj = ["embassy-stm32/stm32u5a5zj", "chrono", "rng", "hash"] # FIXME: cordic test cause it crash
stm32u585ai = ["embassy-stm32/stm32u585ai", "spi-v345", "chrono", "rng", "hash", "cordic"]
stm32u5a5zj = ["embassy-stm32/stm32u5a5zj", "spi-v345", "chrono", "rng", "hash"] # FIXME: cordic test cause it crash
stm32wb55rg = ["embassy-stm32/stm32wb55rg", "chrono", "not-gpdma", "ble", "mac" , "rng"]
stm32wba52cg = ["embassy-stm32/stm32wba52cg", "chrono", "rng", "hash"]
stm32wba52cg = ["embassy-stm32/stm32wba52cg", "spi-v345", "chrono", "rng", "hash"]
stm32wl55jc = ["embassy-stm32/stm32wl55jc-cm4", "not-gpdma", "rng", "chrono"]
stm32f091rc = ["embassy-stm32/stm32f091rc", "cm0", "not-gpdma", "chrono"]
stm32h503rb = ["embassy-stm32/stm32h503rb", "rng", "stop"]
stm32h7s3l8 = ["embassy-stm32/stm32h7s3l8", "rng", "cordic", "hash"] # TODO: fdcan crashes, cryp dma hangs.
stm32h503rb = ["embassy-stm32/stm32h503rb", "spi-v345", "rng", "stop"]
stm32h7s3l8 = ["embassy-stm32/stm32h7s3l8", "spi-v345", "rng", "cordic", "hash"] # TODO: fdcan crashes, cryp dma hangs.
stm32u083rc = ["embassy-stm32/stm32u083rc", "cm0", "rng", "chrono"]
spi-v1 = []
spi-v345 = []
cryp = []
hash = []
eth = ["embassy-executor/task-arena-size-16384"]

50
tests/stm32/src/bin/spi.rs
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@ -62,27 +62,49 @@ async fn main(_spawner: Spawner) {
// Assert the RCC bit gets disabled on drop.
#[cfg(feature = "stm32f429zi")]
{
defmt::assert!(embassy_stm32::pac::RCC.apb2enr().read().spi1en());
drop(spi);
defmt::assert!(!embassy_stm32::pac::RCC.apb2enr().read().spi1en());
}
#[cfg(not(feature = "stm32f429zi"))]
core::mem::drop(spi);
defmt::assert!(embassy_stm32::pac::RCC.apb2enr().read().spi1en());
drop(spi);
#[cfg(feature = "stm32f429zi")]
defmt::assert!(!embassy_stm32::pac::RCC.apb2enr().read().spi1en());
// test rx-only configuration
let mut spi = Spi::new_blocking_rxonly(&mut spi_peri, &mut sck, &mut miso, spi_config);
let mut mosi = Output::new(&mut mosi, Level::Low, Speed::VeryHigh);
mosi.set_high();
let mut mosi_out = Output::new(&mut mosi, Level::Low, Speed::VeryHigh);
mosi_out.set_high();
spi.blocking_read(&mut buf).unwrap();
assert_eq!(buf, [0xff; 9]);
mosi.set_low();
mosi_out.set_low();
spi.blocking_read(&mut buf).unwrap();
assert_eq!(buf, [0x00; 9]);
drop(mosi_out);
drop(spi);
// Test tx-only. Just check it doesn't hang, not much else we can do without using SPI slave.
let mut spi = Spi::new_blocking_txonly(&mut spi_peri, &mut sck, &mut mosi, spi_config);
spi.blocking_transfer(&mut buf, &data).unwrap();
spi.blocking_transfer_in_place(&mut buf).unwrap();
spi.blocking_write(&buf).unwrap();
spi.blocking_read(&mut buf).unwrap();
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();
drop(spi);
// Test tx-only nosck.
#[cfg(feature = "spi-v1")]
{
let mut spi = Spi::new_blocking_txonly_nosck(&mut spi_peri, &mut mosi, spi_config);
spi.blocking_transfer(&mut buf, &data).unwrap();
spi.blocking_transfer_in_place(&mut buf).unwrap();
spi.blocking_write(&buf).unwrap();
spi.blocking_read(&mut buf).unwrap();
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();
drop(spi);
}
info!("Test OK");
cortex_m::asm::bkpt();

56
tests/stm32/src/bin/spi_dma.rs
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@ -88,31 +88,53 @@ async fn main(_spawner: Spawner) {
&mut sck,
&mut miso,
// SPIv1/f1 requires txdma even if rxonly.
#[cfg(not(any(
feature = "stm32h503rb",
feature = "stm32h563zi",
feature = "stm32h753zi",
feature = "stm32h755zi",
feature = "stm32h7a3zi",
feature = "stm32h7s3l8",
feature = "stm32u585ai",
feature = "stm32u5a5zj",
feature = "stm32wba52cg",
)))]
#[cfg(not(feature = "spi-v345"))]
&mut tx_dma,
&mut rx_dma,
spi_config,
);
let mut mosi = Output::new(&mut mosi, Level::Low, Speed::VeryHigh);
mosi.set_high();
let mut mosi_out = Output::new(&mut mosi, Level::Low, Speed::VeryHigh);
mosi_out.set_high();
spi.read(&mut buf).await.unwrap();
assert_eq!(buf, [0xff; 9]);
mosi.set_low();
spi.blocking_read(&mut buf).unwrap();
assert_eq!(buf, [0xff; 9]);
spi.read(&mut buf).await.unwrap();
assert_eq!(buf, [0xff; 9]);
spi.read(&mut buf).await.unwrap();
assert_eq!(buf, [0xff; 9]);
spi.blocking_read(&mut buf).unwrap();
assert_eq!(buf, [0xff; 9]);
spi.blocking_read(&mut buf).unwrap();
assert_eq!(buf, [0xff; 9]);
mosi_out.set_low();
spi.read(&mut buf).await.unwrap();
assert_eq!(buf, [0x00; 9]);
drop(mosi_out);
drop(spi);
// Test tx-only. Just check it doesn't hang, not much else we can do without using SPI slave.
let mut spi = Spi::new_txonly(&mut spi_peri, &mut sck, &mut mosi, &mut tx_dma, spi_config);
spi.blocking_write(&buf).unwrap();
spi.write(&buf).await.unwrap();
spi.blocking_write(&buf).unwrap();
spi.blocking_write(&buf).unwrap();
spi.write(&buf).await.unwrap();
spi.write(&buf).await.unwrap();
drop(spi);
// Test tx-only nosck.
#[cfg(feature = "spi-v1")]
{
let mut spi = Spi::new_txonly_nosck(&mut spi_peri, &mut mosi, &mut tx_dma, spi_config);
spi.blocking_write(&buf).unwrap();
spi.write(&buf).await.unwrap();
spi.blocking_write(&buf).unwrap();
spi.blocking_write(&buf).unwrap();
spi.write(&buf).await.unwrap();
spi.write(&buf).await.unwrap();
drop(spi);
}
info!("Test OK");
cortex_m::asm::bkpt();