From 127557d27ea6e40e7cc6231c6d6bc7f9b8a07392 Mon Sep 17 00:00:00 2001
From: Roman Grudzinski <grudzinski@gmail.com>
Date: Thu, 16 Jan 2025 13:25:33 +0300
Subject: [PATCH] Fix ADC channel selecting and ADC value reading

---
 src/machine/machine_stm32_adc_f1.go | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/machine/machine_stm32_adc_f1.go b/src/machine/machine_stm32_adc_f1.go
index dedfea869..7076bdd8f 100644
--- a/src/machine/machine_stm32_adc_f1.go
+++ b/src/machine/machine_stm32_adc_f1.go
@@ -24,7 +24,7 @@ func InitADC() {
 	enableAltFuncClock(unsafe.Pointer(stm32.ADC1))
 
 	// enable
-	stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON)
+	stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON | stm32.ADC_CR2_ALIGN)
 
 	return
 }
@@ -49,7 +49,7 @@ func (a ADC) Configure(ADCConfig) {
 func (a ADC) Get() uint16 {
 	// set rank
 	ch := uint32(a.getChannel())
-	stm32.ADC1.SQR3.SetBits(ch)
+	stm32.ADC1.SetSQR3_SQ1(ch)
 
 	// start conversion
 	stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON)
@@ -59,9 +59,7 @@ func (a ADC) Get() uint16 {
 	}
 
 	// read result as 16 bit value
-	result := uint16(stm32.ADC1.DR.Get()) << 4
-
-	return result
+	return uint16(stm32.ADC1.DR.Get())
 }
 
 func (a ADC) getChannel() uint8 {