Merge pull request #3735 from IvanLi-CN/feat/Calibrating-Differential-ADC-for-G4

feat: Calibrating Differential Inputs ADC for G4

1 files changed, 8 insertions, 0 deletions

diff --git a/embassy-stm32/src/adc/g4.rs b/embassy-stm32/src/adc/g4.rs
index 555a91d17..0291ef4de 100644
--- a/embassy-stm32/src/adc/g4.rs
+++ b/embassy-stm32/src/adc/g4.rs
@@ -191,6 +191,14 @@ impl<'d, T: Instance> Adc<'d, T> {
         T::regs().cr().modify(|w| w.set_adcal(true));
 
         while T::regs().cr().read().adcal() {}
+
+        T::regs().cr().modify(|w| {
+            w.set_adcaldif(Adcaldif::DIFFERENTIAL);
+        });
+
+        T::regs().cr().modify(|w| w.set_adcal(true));
+
+        while T::regs().cr().read().adcal() {}
     }
 
     fn enable(&mut self) {