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Fix ADC channel selecting and ADC value reading

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This commit is contained in:
Roman Grudzinski
2025-01-16 13:25:33 +03:00
committed by Ron Evans
parent fd89e9b83a
commit 127557d27e
1 changed files with 3 additions and 5 deletions
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src/machine/machine_stm32_adc_f1.go
+3 -5
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@@ -24,7 +24,7 @@ func InitADC() {
enableAltFuncClock(unsafe.Pointer(stm32.ADC1)) enableAltFuncClock(unsafe.Pointer(stm32.ADC1))
// enable // enable
stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON) stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON | stm32.ADC_CR2_ALIGN)
return return
} }
@@ -49,7 +49,7 @@ func (a ADC) Configure(ADCConfig) {
func (a ADC) Get() uint16 { func (a ADC) Get() uint16 {
// set rank // set rank
ch := uint32(a.getChannel()) ch := uint32(a.getChannel())
stm32.ADC1.SQR3.SetBits(ch) stm32.ADC1.SetSQR3_SQ1(ch)
// start conversion // start conversion
stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON) stm32.ADC1.CR2.SetBits(stm32.ADC_CR2_ADON)
@@ -59,9 +59,7 @@ func (a ADC) Get() uint16 {
} }
// read result as 16 bit value // read result as 16 bit value
result := uint16(stm32.ADC1.DR.Get()) << 4 return uint16(stm32.ADC1.DR.Get())
return result
} }
func (a ADC) getChannel() uint8 { func (a ADC) getChannel() uint8 {