From ca8be1c976b82a368622899fdf7192294bd81363 Mon Sep 17 00:00:00 2001
From: elagil <elagil@takanome.de>
Date: Sat, 29 Mar 2025 22:01:54 +0100
Subject: [PATCH] fix: stm32g4 calibration delays

---
 embassy-stm32/src/adc/g4.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/embassy-stm32/src/adc/g4.rs b/embassy-stm32/src/adc/g4.rs
index 6a00e788e..6b9182ad6 100644
--- a/embassy-stm32/src/adc/g4.rs
+++ b/embassy-stm32/src/adc/g4.rs
@@ -171,7 +171,7 @@ impl<'d, T: Instance> Adc<'d, T> {
             reg.set_advregen(true);
         });
 
-        blocking_delay_us(10);
+        blocking_delay_us(20);
     }
 
     fn configure_differential_inputs(&mut self) {
@@ -191,6 +191,8 @@ impl<'d, T: Instance> Adc<'d, T> {
 
         while T::regs().cr().read().adcal() {}
 
+        blocking_delay_us(20);
+
         T::regs().cr().modify(|w| {
             w.set_adcaldif(Adcaldif::DIFFERENTIAL);
         });
@@ -198,6 +200,8 @@ impl<'d, T: Instance> Adc<'d, T> {
         T::regs().cr().modify(|w| w.set_adcal(true));
 
         while T::regs().cr().read().adcal() {}
+
+        blocking_delay_us(20);
     }
 
     fn enable(&mut self) {