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PWM Output on RP2040 for high frequencies (#5204)
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@ -27,8 +27,12 @@ void RP2040PWM::setup_pwm_() {
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uint32_t clock = clock_get_hz(clk_sys);
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float divider = ceil(clock / (4096 * this->frequency_)) / 16.0f;
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if (divider < 1.0f) {
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divider = 1.0f;
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}
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uint16_t wrap = clock / divider / this->frequency_ - 1;
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this->wrap_ = wrap;
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ESP_LOGD(TAG, "divider=%.5f, wrap=%d, clock=%d", divider, wrap, clock);
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pwm_config_set_clkdiv(&config, divider);
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pwm_config_set_wrap(&config, wrap);
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