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Provide frequency/duty_cycle API for PwmOut::begin(...). #204

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Merged
merged 1 commit into from
Dec 13, 2023
Merged

Provide frequency/duty_cycle API for PwmOut::begin(...). #204

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22 changes: 22 additions & 0 deletions cores/arduino/pwm.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,28 @@ bool PwmOut::begin(uint32_t period_width, uint32_t pulse_width, bool raw /*= fal
return _enabled;
}

/* -------------------------------------------------------------------------- */
bool PwmOut::begin(float freq_hz, float duty_perc) {
/* -------------------------------------------------------------------------- */
_enabled = true;
int max_index = PINS_COUNT;
_enabled &= cfg_pin(max_index);

if(_enabled) {
_enabled &= timer.begin(TIMER_MODE_PWM, (_is_agt) ? AGT_TIMER : GPT_TIMER, timer_channel, freq_hz, duty_perc);
}

if(_enabled) {
timer.add_pwm_extended_cfg();
timer.enable_pwm_channel(_pwm_channel);

_enabled &= timer.open();
_enabled &= timer.start();
}

return _enabled;
}

bool PwmOut::period(int ms) {
return timer.set_period_ms((double)ms);
}
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1 change: 1 addition & 0 deletions cores/arduino/pwm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ class PwmOut {
TIMER_SOURCE_DIV_256
TIMER_SOURCE_DIV_1024 */
bool begin(uint32_t period_usec, uint32_t pulse_usec, bool raw = false, timer_source_div_t sd = TIMER_SOURCE_DIV_1);
bool begin(float freq_hz, float duty_perc);
void end();
bool period(int ms);
bool pulseWidth(int ms);
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