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Merge pull request #3468 from korken89/fix-can-hang

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This fixes 2 issues where STM32 BXCAN would hang
This commit is contained in:
Dario Nieuwenhuis 2024-10-27 18:19:56 +00:00 committed by GitHub
commit f0a2616dd6
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1 changed files with 7 additions and 3 deletions
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10
embassy-stm32/src/can/bxcan/mod.rs
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@ -893,7 +893,7 @@ impl RxMode {
RxFifo::Fifo0 => 0usize,
RxFifo::Fifo1 => 1usize,
};
T::regs().ier().write(|w| {
T::regs().ier().modify(|w| {
w.set_fmpie(fifo_idx, false);
});
waker.wake();
@ -936,18 +936,22 @@ impl RxMode {
Self::NonBuffered(_) => {
let registers = &info.regs;
if let Some(msg) = registers.receive_fifo(RxFifo::Fifo0) {
registers.0.ier().write(|w| {
registers.0.ier().modify(|w| {
w.set_fmpie(0, true);
});
Ok(msg)
} else if let Some(msg) = registers.receive_fifo(RxFifo::Fifo1) {
registers.0.ier().write(|w| {
registers.0.ier().modify(|w| {
w.set_fmpie(1, true);
});
Ok(msg)
} else if let Some(err) = registers.curr_error() {
Err(TryReadError::BusError(err))
} else {
registers.0.ier().modify(|w| {
w.set_fmpie(0, true);
w.set_fmpie(1, true);
});
Err(TryReadError::Empty)
}
}