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Update DHT22 receive to use runtime/interrupt

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Fixes #483 by updating the DHT22 device to use runtime/interrupt instead
of machine.UART1 for interrupt disabling while receiving signals from the
device.
This commit is contained in:
Jason Del Ponte
2022-12-08 17:15:27 -08:00
committed by Ron Evans
parent ea944c8933
commit 789bbbd89f
1 changed files with 3 additions and 2 deletions
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dht/thermometer.go
+3 -2
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@@ -11,6 +11,7 @@ package dht // import "tinygo.org/x/drivers/dht"
import ( import (
"machine" "machine"
"runtime/interrupt"
"time" "time"
) )
@@ -160,8 +161,8 @@ func (t *device) read() error {
// interrupts // interrupts
func receiveSignals(pin machine.Pin, result []counter) { func receiveSignals(pin machine.Pin, result []counter) {
i := uint8(0) i := uint8(0)
machine.UART1.Interrupt.Disable() mask := interrupt.Disable()
defer machine.UART1.Interrupt.Enable() defer interrupt.Restore(mask)
for ; i < 40; i++ { for ; i < 40; i++ {
result[i*2] = expectChange(pin, false) result[i*2] = expectChange(pin, false)
result[i*2+1] = expectChange(pin, true) result[i*2+1] = expectChange(pin, true)