fe310: support GPIO PinInput

aykevl · deadprogram · commit bcfe751f6230 · 2024-10-21T18:30:31.000+01:00
This is needed to support switching between input and output.
diff --git a/src/machine/machine_fe310.go b/src/machine/machine_fe310.go
@@ -26,6 +26,8 @@ const (
 func (p Pin) Configure(config PinConfig) {
 	sifive.GPIO0.INPUT_EN.SetBits(1 << uint8(p))
 	switch config.Mode {
+	case PinInput:
+		sifive.GPIO0.OUTPUT_EN.ClearBits(1 << uint8(p))
 	case PinOutput:
 		sifive.GPIO0.OUTPUT_EN.SetBits(1 << uint8(p))
 	case PinPWM:
