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machine/samd51: correct channel init and pin map for ADC based on ItsyBitsy-M4

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Signed-off-by: Ron Evans <ron@hybridgroup.com>
This commit is contained in:
Ron Evans
2019-10-28 10:09:17 +01:00
committed by Ayke
parent 3ec94a06ed
commit 41df9648a8
2 changed files with 3 additions and 6 deletions
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src/machine/machine_atsamd51.go
+2 -5
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@@ -386,11 +386,8 @@ func (a ADC) Get() uint16 {
for bus.SYNCBUSY.HasBits(sam.ADC_SYNCBUSY_INPUTCTRL) {
}
// Selection for the positive ADC input
bus.INPUTCTRL.ClearBits(sam.ADC_INPUTCTRL_MUXPOS_Msk)
for bus.SYNCBUSY.HasBits(sam.ADC_SYNCBUSY_ENABLE) {
}
bus.INPUTCTRL.SetBits(uint16(ch << sam.ADC_INPUTCTRL_MUXPOS_Pos))
// Selection for the positive ADC input channel
bus.INPUTCTRL.SetBits((uint16(ch) & sam.ADC_INPUTCTRL_MUXPOS_Msk) << sam.ADC_INPUTCTRL_MUXPOS_Pos)
for bus.SYNCBUSY.HasBits(sam.ADC_SYNCBUSY_ENABLE) {
}