From c953b9045b40fd3ece546ef94714fa2f108e0c25 Mon Sep 17 00:00:00 2001
From: Torin Cooper-Bennun <tcbennun@maxiluxsystems.com>
Date: Fri, 5 Apr 2024 13:00:33 +0100
Subject: [PATCH] stm32: adc: v3: [h5] set OR.OP0 to 1 when ADCx_INP0 is
selected, per RM
---
embassy-stm32/src/adc/v3.rs | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/embassy-stm32/src/adc/v3.rs b/embassy-stm32/src/adc/v3.rs
index 8c9b47197..e25630be2 100644
--- a/embassy-stm32/src/adc/v3.rs
+++ b/embassy-stm32/src/adc/v3.rs
@@ -222,6 +222,13 @@ impl<'d, T: Instance> Adc<'d, T> {
// spin
}
+ // RM0492, RM0481, etc.
+ // "This option bit must be set to 1 when ADCx_INP0 or ADCx_INN1 channel is selected."
+ #[cfg(adc_h5)]
+ if pin.channel() == 0 {
+ T::regs().or().modify(|reg| reg.set_op0(true));
+ }
+
// Configure channel
Self::set_channel_sample_time(pin.channel(), self.sample_time);
@@ -244,6 +251,13 @@ impl<'d, T: Instance> Adc<'d, T> {
T::regs().cr().modify(|reg| reg.set_addis(true));
+ // RM0492, RM0481, etc.
+ // "This option bit must be set to 1 when ADCx_INP0 or ADCx_INN1 channel is selected."
+ #[cfg(adc_h5)]
+ if pin.channel() == 0 {
+ T::regs().or().modify(|reg| reg.set_op0(false));
+ }
+
val
}