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stm32/spi: add new_txonly_nosck constructor, for neopixels, with an example in the stm32g0 directory.

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anton smeenk
2023-04-18 20:56:57 +02:00
committed by Dario Nieuwenhuis
parent 2080d8bb6d
commit 3260f6b2af
2 changed files with 118 additions and 0 deletions
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17
embassy-stm32/src/spi/mod.rs
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@ -177,6 +177,23 @@ impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
)
}
pub fn new_txonly_nosck(
peri: impl Peripheral<P = T> + 'd,
mosi: impl Peripheral<P = impl MosiPin<T>> + 'd,
txdma: impl Peripheral<P = Tx> + 'd,
rxdma: impl Peripheral<P = Rx> + 'd, // TODO: remove
freq: Hertz,
config: Config,
) -> Self {
into_ref!(mosi);
unsafe {
mosi.set_as_af_pull(mosi.af_num(), AFType::OutputPushPull, Pull::Down);
mosi.set_speed(crate::gpio::Speed::Medium);
}
Self::new_inner(peri, None, Some(mosi.map_into()), None, txdma, rxdma, freq, config)
}
/// Useful for on chip peripherals like SUBGHZ which are hardwired.
/// The bus can optionally be exposed externally with `Spi::new()` still.
#[allow(dead_code)]