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I/O: Another filename fix for PWM

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gohai
2015-10-19 20:52:26 +02:00
parent 5c5d0ce8d8
commit 4bfe0feea5
1 changed files with 3 additions and 1 deletions
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4
java/libraries/io/src/processing/io/PWM.java
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@@ -157,17 +157,19 @@ public class PWM {
public void set(int period, float duty) {
// set period
String fn = fn = String.format("/sys/class/pwm/%s/pwm%d/period", chip, channel);
// convert to nanoseconds
int ret = NativeInterface.writeFile(fn, String.format("%d", (int)(1000000000 / period)));
if (ret < 0) {
throw new RuntimeException(fn + ": " + NativeInterface.getError(ret));
}
// set duty cycle
fn = fn = String.format("/sys/class/pwm/%s/pwm%d/duty", chip, channel);
fn = fn = String.format("/sys/class/pwm/%s/pwm%d/duty_cycle", chip, channel);
if (duty < 0.0 || 1.0 < duty) {
System.err.println("Duty cycle must be between 0.0 and 1.0.");
throw new IllegalArgumentException("Illegal argument");
}
// convert to nanoseconds
ret = NativeInterface.writeFile(fn, String.format("%d", (int)((1000000000 * duty) / period)));
if (ret < 0) {
throw new RuntimeException(fn + ": " + NativeInterface.getError(ret));