decoders.cpp File Reference

#include <limits.h>
#include <SimplyAtomic.h>
#include "globals.h"
#include "decoders.h"
#include "scheduledIO.h"
#include "scheduler.h"
#include "crankMaths.h"
#include "timers.h"
#include "schedule_calcs.h"
#include "unit_testing.h"

Macros
#define	MJR   1
#define	secondaryToothLastCount   checkSyncToothCount
#define	renixSystemLastToothTime   toothLastToothRisingTime
#define	renixSystemLastMinusOneToothTime   toothLastSecToothRisingTime

Functions
void	nullTriggerHandler (void)
uint16_t	nullGetRPM (void)
int	nullGetCrankAngle (void)
static void	triggerRoverMEMSCommon (void)
	Pointer to the triggerSetEndTeeth function of each decoder.
static void	triggerRecordVVT1Angle (void)
static void	addToothLogEntry (unsigned long toothTime, byte whichTooth)
void	loggerPrimaryISR (void)
void	loggerSecondaryISR (void)
void	loggerTertiaryISR (void)
static uint16_t	timeToAngleIntervalTooth (uint32_t time)
static bool	IsCranking (const statuses &status)
bool	engineIsRunning (uint32_t curTime)
	Is the engine running?
void	resetDecoder (void)
	This function is called when the engine is stopped, or when the engine is started. It resets the decoder state and the tooth tracking variables.
static bool	SetRevolutionTime (uint32_t revTime)
static bool	UpdateRevolutionTimeFromTeeth (bool isCamTeeth)
static uint16_t	clampRpm (uint16_t rpm)
static uint16_t	RpmFromRevolutionTimeUs (uint32_t revTime)
static uint16_t	stdGetRPM (bool isCamTeeth)
static void	setFilter (unsigned long curGap)
static int	crankingGetRPM (byte totalTeeth, bool isCamTeeth)
static void	checkPerToothTiming (int16_t crankAngle, uint16_t currentTooth)
void	triggerSetup_missingTooth (void)
void	triggerPri_missingTooth (void)
void	triggerSec_missingTooth (void)
void	triggerThird_missingTooth (void)
uint16_t	getRPM_missingTooth (void)
int	getCrankAngle_missingTooth (void)
static uint16_t	clampToToothCount (int16_t toothNum, uint8_t toothAdder)
static uint16_t	clampToActualTeeth (uint16_t toothNum, uint8_t toothAdder)
static uint16_t	calcEndTeeth_missingTooth (int endAngle, uint8_t toothAdder)
void	triggerSetEndTeeth_missingTooth (void)
void	triggerSetup_DualWheel (void)
void	triggerPri_DualWheel (void)
void	triggerSec_DualWheel (void)
uint16_t	getRPM_DualWheel (void)
int	getCrankAngle_DualWheel (void)
static uint16_t	calcEndTeeth_DualWheel (int ignitionAngle, uint8_t toothAdder)
void	triggerSetEndTeeth_DualWheel (void)
void	triggerSetup_BasicDistributor (void)
void	triggerPri_BasicDistributor (void)
void	triggerSec_BasicDistributor (void)
uint16_t	getRPM_BasicDistributor (void)
int	getCrankAngle_BasicDistributor (void)
void	triggerSetEndTeeth_BasicDistributor (void)
void	triggerSetup_GM7X (void)
void	triggerPri_GM7X (void)
void	triggerSec_GM7X (void)
uint16_t	getRPM_GM7X (void)
int	getCrankAngle_GM7X (void)
void	triggerSetEndTeeth_GM7X (void)
void	triggerSetup_4G63 (void)
void	triggerPri_4G63 (void)
void	triggerSec_4G63 (void)
uint16_t	getRPM_4G63 (void)
int	getCrankAngle_4G63 (void)
void	triggerSetEndTeeth_4G63 (void)
void	triggerSetup_24X (void)
void	triggerPri_24X (void)
void	triggerSec_24X (void)
uint16_t	getRPM_24X (void)
int	getCrankAngle_24X (void)
void	triggerSetEndTeeth_24X (void)
void	triggerSetup_Jeep2000 (void)
void	triggerPri_Jeep2000 (void)
void	triggerSec_Jeep2000 (void)
uint16_t	getRPM_Jeep2000 (void)
int	getCrankAngle_Jeep2000 (void)
void	triggerSetEndTeeth_Jeep2000 (void)
void	triggerSetup_Audi135 (void)
void	triggerPri_Audi135 (void)
void	triggerSec_Audi135 (void)
uint16_t	getRPM_Audi135 (void)
int	getCrankAngle_Audi135 (void)
void	triggerSetEndTeeth_Audi135 (void)
void	triggerSetup_HondaD17 (void)
void	triggerPri_HondaD17 (void)
void	triggerSec_HondaD17 (void)
uint16_t	getRPM_HondaD17 (void)
int	getCrankAngle_HondaD17 (void)
void	triggerSetEndTeeth_HondaD17 (void)
void	triggerSetup_HondaJ32 (void)
void	triggerPri_HondaJ32 (void)
void	triggerSec_HondaJ32 (void)
uint16_t	getRPM_HondaJ32 (void)
int	getCrankAngle_HondaJ32 (void)
void	triggerSetEndTeeth_HondaJ32 (void)
void	triggerSetup_Miata9905 (void)
void	triggerPri_Miata9905 (void)
void	triggerSec_Miata9905 (void)
uint16_t	getRPM_Miata9905 (void)
int	getCrankAngle_Miata9905 (void)
int	getCamAngle_Miata9905 (void)
void	triggerSetEndTeeth_Miata9905 (void)
void	triggerSetup_MazdaAU (void)
void	triggerPri_MazdaAU (void)
void	triggerSec_MazdaAU (void)
uint16_t	getRPM_MazdaAU (void)
int	getCrankAngle_MazdaAU (void)
void	triggerSetEndTeeth_MazdaAU (void)
void	triggerSetup_non360 (void)
void	triggerPri_non360 (void)
void	triggerSec_non360 (void)
uint16_t	getRPM_non360 (void)
int	getCrankAngle_non360 (void)
void	triggerSetEndTeeth_non360 (void)
void	triggerSetup_Nissan360 (void)
void	triggerPri_Nissan360 (void)
void	triggerSec_Nissan360 (void)
uint16_t	getRPM_Nissan360 (void)
int	getCrankAngle_Nissan360 (void)
void	triggerSetEndTeeth_Nissan360 (void)
void	triggerSetup_Subaru67 (void)
void	triggerPri_Subaru67 (void)
void	triggerSec_Subaru67 (void)
uint16_t	getRPM_Subaru67 (void)
int	getCrankAngle_Subaru67 (void)
void	triggerSetEndTeeth_Subaru67 (void)
void	triggerSetup_Daihatsu (void)
void	triggerPri_Daihatsu (void)
void	triggerSec_Daihatsu (void)
uint16_t	getRPM_Daihatsu (void)
int	getCrankAngle_Daihatsu (void)
void	triggerSetEndTeeth_Daihatsu (void)
void	triggerSetup_Harley (void)
void	triggerPri_Harley (void)
void	triggerSec_Harley (void)
uint16_t	getRPM_Harley (void)
int	getCrankAngle_Harley (void)
void	triggerSetEndTeeth_Harley (void)
void	triggerSetup_ThirtySixMinus222 (void)
void	triggerPri_ThirtySixMinus222 (void)
void	triggerSec_ThirtySixMinus222 (void)
uint16_t	getRPM_ThirtySixMinus222 (void)
int	getCrankAngle_ThirtySixMinus222 (void)
void	triggerSetEndTeeth_ThirtySixMinus222 (void)
void	triggerSetup_ThirtySixMinus21 (void)
void	triggerPri_ThirtySixMinus21 (void)
void	triggerSec_ThirtySixMinus21 (void)
uint16_t	getRPM_ThirtySixMinus21 (void)
int	getCrankAngle_ThirtySixMinus21 (void)
void	triggerSetEndTeeth_ThirtySixMinus21 (void)
void	triggerSetup_420a (void)
void	triggerPri_420a (void)
void	triggerSec_420a (void)
uint16_t	getRPM_420a (void)
int	getCrankAngle_420a (void)
void	triggerSetEndTeeth_420a (void)
void	triggerPri_Webber (void)
void	triggerSec_Webber (void)
void	triggerSetup_FordST170 (void)
void	triggerSec_FordST170 (void)
uint16_t	getRPM_FordST170 (void)
int	getCrankAngle_FordST170 (void)
static uint16_t	calcSetEndTeeth_FordST170 (int ignitionAngle, uint8_t toothAdder)
void	triggerSetEndTeeth_FordST170 (void)
void	triggerSetup_DRZ400 (void)
void	triggerSec_DRZ400 (void)
void	triggerSetup_NGC (void)
void	triggerPri_NGC (void)
void	triggerSec_NGC4 (void)
void	triggerSec_NGC68 (void)
uint16_t	getRPM_NGC (void)
static uint16_t	calcSetEndTeeth_NGC_SkipMissing (uint16_t toothNum)
static uint16_t	calcSetEndTeeth_NGC (int ignitionAngle, uint8_t toothAdder)
void	triggerSetEndTeeth_NGC (void)
void	triggerSetup_Vmax (void)
void	triggerPri_Vmax (void)
void	triggerSec_Vmax (void)
uint16_t	getRPM_Vmax (void)
int	getCrankAngle_Vmax (void)
void	triggerSetEndTeeth_Vmax (void)
void	triggerSetup_Renix (void)
void	triggerPri_Renix (void)
static uint16_t	calcEndTeeth_Renix (int ignitionAngle, uint8_t toothAdder)
void	triggerSetEndTeeth_Renix (void)
void	triggerSetup_RoverMEMS ()
void	triggerPri_RoverMEMS ()
int	getCrankAngle_RoverMEMS ()
void	triggerSec_RoverMEMS ()
uint16_t	getRPM_RoverMEMS ()
void	triggerSetEndTeeth_RoverMEMS ()
void	triggerSetup_SuzukiK6A (void)
void	triggerPri_SuzukiK6A (void)
void	triggerSec_SuzukiK6A (void)
uint16_t	getRPM_SuzukiK6A (void)
int	getCrankAngle_SuzukiK6A (void)
static uint16_t	calcEndTeeth_SuzukiK6A (int ignitionAngle)
void	triggerSetEndTeeth_SuzukiK6A (void)

Variables
void(*	triggerHandler )(void) = nullTriggerHandler
void(*	triggerSecondaryHandler )(void) = nullTriggerHandler
	Pointer for the trigger function (Gets pointed to the relevant decoder)
void(*	triggerTertiaryHandler )(void) = nullTriggerHandler
	Pointer for the secondary trigger function (Gets pointed to the relevant decoder)
uint16_t(*	getRPM )(void) = nullGetRPM
	Pointer for the tertiary trigger function (Gets pointed to the relevant decoder)
int(*	getCrankAngle )(void) = nullGetCrankAngle
	Pointer to the getRPM function (Gets pointed to the relevant decoder)
void(*	triggerSetEndTeeth )(void) = triggerSetEndTeeth_missingTooth
	Pointer to the getCrank Angle function (Gets pointed to the relevant decoder)
volatile unsigned long	curTime
volatile unsigned long	curGap
volatile unsigned long	curTime2
volatile unsigned long	curGap2
volatile unsigned long	curTime3
volatile unsigned long	curGap3
volatile unsigned long	lastGap
volatile unsigned long	targetGap
TESTABLE_STATIC unsigned long	MAX_STALL_TIME = MICROS_PER_SEC/2U
volatile uint16_t	toothCurrentCount = 0
static volatile byte	toothSystemCount = 0
volatile unsigned long	toothSystemLastToothTime = 0
TESTABLE_STATIC volatile unsigned long	toothLastToothTime = 0
static volatile unsigned long	toothLastSecToothTime = 0
volatile unsigned long	toothLastThirdToothTime = 0
volatile unsigned long	toothLastMinusOneToothTime = 0
volatile unsigned long	toothLastMinusOneSecToothTime = 0
volatile unsigned long	toothLastToothRisingTime = 0
volatile unsigned long	toothLastSecToothRisingTime = 0
volatile unsigned long	targetGap2
volatile unsigned long	targetGap3
volatile unsigned long	toothOneTime = 0
volatile unsigned long	toothOneMinusOneTime = 0
volatile bool	revolutionOne = 0
volatile bool	revolutionLastOne = 0
static volatile unsigned int	secondaryToothCount
volatile unsigned int	secondaryLastToothCount = 0
volatile unsigned long	secondaryLastToothTime = 0
volatile unsigned long	secondaryLastToothTime1 = 0
volatile unsigned int	thirdToothCount
volatile unsigned long	thirdLastToothTime = 0
volatile unsigned long	thirdLastToothTime1 = 0
uint16_t	triggerActualTeeth
volatile unsigned long	triggerFilterTime
volatile unsigned long	triggerSecFilterTime
volatile unsigned long	triggerThirdFilterTime
volatile uint8_t	decoderState = 0
unsigned int	triggerSecFilterTime_duration
volatile uint16_t	triggerToothAngle
byte	checkSyncToothCount
unsigned long	elapsedTime
unsigned long	lastCrankAngleCalc
unsigned long	lastVVTtime
uint16_t	ignition1EndTooth = 0
uint16_t	ignition2EndTooth = 0
uint16_t	ignition3EndTooth = 0
uint16_t	ignition4EndTooth = 0
uint16_t	ignition5EndTooth = 0
uint16_t	ignition6EndTooth = 0
uint16_t	ignition7EndTooth = 0
uint16_t	ignition8EndTooth = 0
int16_t	toothAngles [24]
volatile unsigned long	roverMEMSTeethSeen = 0

Detailed Description

Crank and Cam decoders

This file contains the various crank and cam wheel decoder functions. Each decoder must have the following 4 functions (Where xxxx is the decoder name):

• triggerSetup_xxxx - Called once from within setup() and configures any required variables
• triggerPri_xxxx - Called each time the primary (No. 1) crank/cam signal is triggered (Called as an interrupt, so variables must be declared volatile)
• triggerSec_xxxx - Called each time the secondary (No. 2) crank/cam signal is triggered (Called as an interrupt, so variables must be declared volatile)
• getRPM_xxxx - Returns the current RPM, as calculated by the decoder
• getCrankAngle_xxxx - Returns the current crank angle, as calculated by the decoder
• getCamAngle_xxxx - Returns the current CAM angle, as calculated by the decoder

Each decoder must utilise at least the following variables:

• toothLastToothTime - The time (In uS) that the last primary tooth was 'seen'

Macro Definition Documentation

MJR

#define MJR   1

Function Documentation

nullGetCrankAngle()

int nullGetCrankAngle

(

void

)

nullGetRPM()

uint16_t nullGetRPM

(

void

)

nullTriggerHandler()

void nullTriggerHandler

(

void

)

triggerSec_DRZ400()

void triggerSec_DRZ400

(

void

)

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triggerSetup_DRZ400()

void triggerSetup_DRZ400

(

void

)

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Variable Documentation

checkSyncToothCount

byte checkSyncToothCount

curGap

volatile unsigned long curGap

curGap2

volatile unsigned long curGap2

curGap3

volatile unsigned long curGap3

curTime

volatile unsigned long curTime

curTime2

volatile unsigned long curTime2

curTime3

volatile unsigned long curTime3

decoderState

volatile uint8_t decoderState = 0

elapsedTime

unsigned long elapsedTime

getCrankAngle

int(* getCrankAngle) (void)

(

void

)

= nullGetCrankAngle

Pointer to the getRPM function (Gets pointed to the relevant decoder)

getRPM

uint16_t(* getRPM) (void)

(

void

)

= nullGetRPM

Pointer for the tertiary trigger function (Gets pointed to the relevant decoder)

ignition1EndTooth

uint16_t ignition1EndTooth = 0

ignition2EndTooth

uint16_t ignition2EndTooth = 0

ignition3EndTooth

uint16_t ignition3EndTooth = 0

ignition4EndTooth

uint16_t ignition4EndTooth = 0

ignition5EndTooth

uint16_t ignition5EndTooth = 0

ignition6EndTooth

uint16_t ignition6EndTooth = 0

ignition7EndTooth

uint16_t ignition7EndTooth = 0

ignition8EndTooth

uint16_t ignition8EndTooth = 0

lastCrankAngleCalc

unsigned long lastCrankAngleCalc

lastGap

volatile unsigned long lastGap

lastVVTtime

unsigned long lastVVTtime

MAX_STALL_TIME

TESTABLE_STATIC unsigned long MAX_STALL_TIME = MICROS_PER_SEC/2U

revolutionLastOne

volatile bool revolutionLastOne = 0

revolutionOne

volatile bool revolutionOne = 0

secondaryLastToothCount

volatile unsigned int secondaryLastToothCount = 0

secondaryLastToothTime

volatile unsigned long secondaryLastToothTime = 0

secondaryLastToothTime1

volatile unsigned long secondaryLastToothTime1 = 0

secondaryToothCount

volatile unsigned int secondaryToothCount

static

targetGap

volatile unsigned long targetGap

targetGap2

volatile unsigned long targetGap2

targetGap3

volatile unsigned long targetGap3

thirdLastToothTime

volatile unsigned long thirdLastToothTime = 0

thirdLastToothTime1

volatile unsigned long thirdLastToothTime1 = 0

thirdToothCount

volatile unsigned int thirdToothCount

toothAngles

int16_t toothAngles[24]

toothCurrentCount

volatile uint16_t toothCurrentCount = 0

toothLastMinusOneSecToothTime

volatile unsigned long toothLastMinusOneSecToothTime = 0

toothLastMinusOneToothTime

volatile unsigned long toothLastMinusOneToothTime = 0

toothLastSecToothRisingTime

volatile unsigned long toothLastSecToothRisingTime = 0

toothLastSecToothTime

volatile unsigned long toothLastSecToothTime = 0

static

toothLastThirdToothTime

volatile unsigned long toothLastThirdToothTime = 0

toothLastToothRisingTime

volatile unsigned long toothLastToothRisingTime = 0

toothLastToothTime

TESTABLE_STATIC volatile unsigned long toothLastToothTime = 0

toothOneMinusOneTime

volatile unsigned long toothOneMinusOneTime = 0

toothOneTime

volatile unsigned long toothOneTime = 0

toothSystemCount

volatile byte toothSystemCount = 0

static

toothSystemLastToothTime

volatile unsigned long toothSystemLastToothTime = 0

triggerActualTeeth

uint16_t triggerActualTeeth

triggerFilterTime

volatile unsigned long triggerFilterTime

triggerHandler

void(* triggerHandler) (void)

(

void

)

= nullTriggerHandler

triggerSecFilterTime

volatile unsigned long triggerSecFilterTime

triggerSecFilterTime_duration

unsigned int triggerSecFilterTime_duration

triggerSecondaryHandler

void(* triggerSecondaryHandler) (void)

(

void

)

= nullTriggerHandler

Pointer for the trigger function (Gets pointed to the relevant decoder)

triggerSetEndTeeth

void(* triggerSetEndTeeth) (void)

(

void

)

= triggerSetEndTeeth_missingTooth

Pointer to the getCrank Angle function (Gets pointed to the relevant decoder)

triggerTertiaryHandler

void(* triggerTertiaryHandler) (void)

(

void

)

= nullTriggerHandler

Pointer for the secondary trigger function (Gets pointed to the relevant decoder)

triggerThirdFilterTime

volatile unsigned long triggerThirdFilterTime

triggerToothAngle

volatile uint16_t triggerToothAngle