mirror of https://github.com/rusefi/rusefi-1.git
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
#include "pch.h"
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#include "vr_pwm.h"
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static OutputPin pins[VR_THRESHOLD_COUNT];
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static SimplePwm pwms[VR_THRESHOLD_COUNT];
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static void updateVrPwm(int rpm, size_t index) {
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auto& cfg = engineConfiguration->vrThreshold[index];
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if (!isBrainPinValid(cfg.pin)) {
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return;
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}
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float thresholdVoltage = interpolate2d(rpm, cfg.rpmBins, cfg.values);
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// 0v threshold voltage = 3.3v output from mcu = 100% duty
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// 2.5v threshold voltage = 0v output from mcu = 0% duty
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float duty = interpolateClamped(0, 1, 2.5f, 0, thresholdVoltage);
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pwms[index].setSimplePwmDutyCycle(duty);
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}
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void updateVrPwm() {
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auto rpm = Sensor::getOrZero(SensorType::Rpm);
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for (size_t i = 0; i < efi::size(engineConfiguration->vrThreshold); i++) {
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updateVrPwm(rpm, i);
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}
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}
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void initVrPwm() {
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for (size_t i = 0; i < efi::size(engineConfiguration->vrThreshold); i++) {
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auto& cfg = engineConfiguration->vrThreshold[i];
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if (!isBrainPinValid(cfg.pin)) {
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continue;
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}
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startSimplePwmHard(&pwms[i], "VR PWM",
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&engine->executor,
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cfg.pin,
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&pins[i],
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10000, // it's guaranteed to be hardware PWM, the faster the PWM, the less noise makes it through
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0
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);
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}
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}
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