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hack for STM32WL, rcc reset in case of seed error

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The STM32WL series has a more complicated rng device that gets stuck
when there is a seed error.
This commit is contained in:
Lucas Granberg 2023-02-08 17:57:37 +02:00
parent da6b1e8399
commit bab4277a86
1 changed files with 5 additions and 0 deletions
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5
embassy-stm32/src/rng.rs
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@ -32,6 +32,11 @@ impl<'d, T: Instance> Rng<'d, T> {
} }
pub fn reset(&mut self) { pub fn reset(&mut self) {
//stm32wl gets stuck if there is a seed error
#[cfg(stm32wl)]
if unsafe { T::regs().sr().read().seis()} {
T::reset();
}
unsafe { unsafe {
T::regs().cr().modify(|reg| { T::regs().cr().modify(|reg| {
reg.set_rngen(true); reg.set_rngen(true);