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rp2: disable digital input for analog inputs

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This is what the Pico SDK does[0] and may fix #4936.

[0] https://github.com/raspberrypi/pico-sdk/blob/ee68c78d0afae2b69c03ae1a72bf5cc267a2d94c/src/rp2_common/hardware_adc/include/hardware/adc.h#L101
This commit is contained in:
Elias Naur
2025-06-27 20:14:56 +02:00
committed by Ron Evans
parent df1d639deb
commit 536deaa00a
1 changed files with 2 additions and 0 deletions
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src/machine/machine_rp2_2350.go
+2
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@@ -150,6 +150,8 @@ func (p Pin) Configure(config PinConfig) {
case PinAnalog: case PinAnalog:
p.setFunc(fnNULL) p.setFunc(fnNULL)
p.pulloff() p.pulloff()
// Disable digital input.
p.padCtrl().ClearBits(rp.PADS_BANK0_GPIO0_IE)
case PinUART: case PinUART:
p.setFunc(fnUART) p.setFunc(fnUART)
case PinPWM: case PinPWM: