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machine: refactor PWM support

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This commit refactors PWM support in the machine package to be more
flexible. The new API can be used to produce tones at a specific
frequency and control servos in a portable way, by abstracting over
counter widths and prescalers.
This commit is contained in:
Ayke van Laethem
2020-05-19 22:30:46 +02:00
committed by Ron Evans
parent f880950c3e
commit 72acda22b0
20 changed files with 1565 additions and 758 deletions
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src/examples/pwm/arduino.go
+12
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@@ -0,0 +1,12 @@
// +build arduino
package main
import "machine"
var (
// Configuration on an Arduino Uno.
pwm = machine.Timer2
pinA = machine.PB3 // pin 11 on the Uno
pinB = machine.PD3 // pin 3 on the Uno
)