Function releaseChannel

src/fl/system/pin.cpp.hpp:205–219

Release a channel and cleanup

// Release a channel and cleanup
void releaseChannel(PwmPinState* ch) {
    if (!ch || ch->pin < 0) return;

    fl::digitalWrite(ch->pin, fl::PinValue::Low);

    {
        fl::isr::critical_section cs;
        ch->pin = -1;
        ch->backend = PwmBackend::None;
        ch->frequency_hz = 0;
        ch->duty_cycle = 0;
    }

    maybeShutdownIsr();
}

}  // namespace pwm_state