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Remove LEDC_BASE_FREQ to calculate duty (#381)

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Max 2017-05-19 15:16:55 +07:00 committed by Me No Dev
parent d36e9bbfa9
commit 05a3de262a
1 changed files with 2 additions and 2 deletions
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libraries/ESP32/examples/AnalogOut/LEDCSoftwareFade/LEDCSoftwareFade.ino
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@ -28,8 +28,8 @@ int fadeAmount = 5; // how many points to fade the LED by
// Arduino like analogWrite // Arduino like analogWrite
// value has to be between 0 and valueMax // value has to be between 0 and valueMax
void ledcAnalogWrite(uint8_t channel, uint32_t value, uint32_t valueMax = 255) { void ledcAnalogWrite(uint8_t channel, uint32_t value, uint32_t valueMax = 255) {
// calculate duty // calculate duty, 8191 from 2 ^ 13 - 1
uint32_t duty = (LEDC_BASE_FREQ / valueMax) * min(value, valueMax); uint32_t duty = (8191 / valueMax) * min(value, valueMax);
// write duty to LEDC // write duty to LEDC
ledcWrite(channel, duty); ledcWrite(channel, duty);