mirror of https://github.com/rusefi/rusefi-1.git
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* @file tachometer.cpp
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* @brief This is about driving external analog tachometers
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*
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* This implementation produces one pulse per engine cycle
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*
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* todo: these is a bit of duplication with dizzySparkOutputPin
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*
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* @date Aug 18, 2015
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* @author Andrey Belomutskiy, (c) 2012-2017
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*/
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#include "tachometer.h"
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#include "trigger_central.h"
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EXTERN_ENGINE;
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static scheduling_s tachTurnSignalOff;
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static void turnTachPinLow(void) {
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enginePins.tachOut.setLow();
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}
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static void tachSignalCallback(trigger_event_e ckpSignalType,
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uint32_t index DECLARE_ENGINE_PARAMETER_S) {
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if (index != engineConfiguration->tachPulseTriggerIndex) {
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return;
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}
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enginePins.tachOut.setHigh();
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scheduleTask(&tachTurnSignalOff, (int)MS2US(engineConfiguration->tachPulseDuractionMs), (schfunc_t) &turnTachPinLow, NULL);
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}
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void initTachometer(void) {
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if (boardConfiguration->tachOutputPin == GPIO_UNASSIGNED) {
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return;
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}
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enginePins.tachOut.initPin("analog tach output", boardConfiguration->tachOutputPin, &boardConfiguration->tachOutputPinMode);
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addTriggerEventListener(tachSignalCallback, "tach", engine);
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}
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