fixup enableRegularConversionExternalTrigger

modm-io · Mar 31, 2023 · 8d240b9 · 8d240b9
1 parent b2ade4b
commit 8d240b9
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/modm/platform/adc/stm32/adc_impl.hpp.in b/src/modm/platform/adc/stm32/adc_impl.hpp.in
@@ -271,7 +271,8 @@ modm::platform::Adc{{ id }}::enableRegularConversionExternalTrigger(
 {
 	const auto externalTrigger =
 		(static_cast<uint32_t>(regularConversionExternalTrigger) << ADC_CR2_EXTSEL_Pos);
-	ADC{{ per }}->CR2 |= externalTrigger;
+	const auto mask = ADC_CR2_EXTSEL_Msk;
+	ADC{{ per }}->CR2 = (ADC{{ per }}->CR2 & ~mask) | externalTrigger;
 }
 %%else
 void
@@ -283,7 +284,8 @@ modm::platform::Adc{{ id }}::enableRegularConversionExternalTrigger(
 		(static_cast<uint32_t>(externalTriggerPolarity) << ADC_CR2_EXTEN_Pos);
 	const auto externalTrigger =
 		(static_cast<uint32_t>(regularConversionExternalTrigger) << ADC_CR2_EXTSEL_Pos);
-	ADC{{ per }}->CR2 |= ( polarity | externalTrigger);
+	const auto mask = ADC_CR2_EXTEN_Msk | ADC_CR2_EXTSEL_Msk;
+	ADC{{ per }}->CR2 = (ADC{{ per }}->CR2 & ~mask) | polarity | externalTrigger;
 }
 %%endif