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Merge #1057

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1057: stm32g0: Fix ADC for channels above 14 r=Dirbaio a=jaxter184

using the CHSELR register in sequence mode does not support ADC channels above 14. Also, it seems like the sequencer itself wasn't being used anyway, so I turned it off (maybe the whole block from L72..L76 could be removed?) and used a bit shift.

Co-authored-by: Jaxter Kim <jaxter.kim@elektron.se>
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bors[bot] 2022-11-21 23:58:28 +00:00 committed by GitHub
commit b8f51c6496
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1 changed files with 2 additions and 2 deletions
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embassy-stm32/src/adc/v3.rs
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@ -71,7 +71,7 @@ impl<'d, T: Instance> Adc<'d, T> {
#[cfg(adc_g0)]
T::regs().cfgr1().modify(|reg| {
reg.set_chselrmod(true);
reg.set_chselrmod(false);
});
}
@ -200,7 +200,7 @@ impl<'d, T: Instance> Adc<'d, T> {
#[cfg(not(stm32g0))]
T::regs().sqr1().write(|reg| reg.set_sq(0, pin.channel()));
#[cfg(stm32g0)]
T::regs().chselr().write(|reg| reg.set_chsel(pin.channel() as u32));
T::regs().chselr().write(|reg| reg.set_chsel(1 << pin.channel()));
// Some models are affected by an erratum:
// If we perform conversions slower than 1 kHz, the first read ADC value can be