sensors.h File Reference

#include "globals.h"

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Macros
#define	ADCFILTER_TPS_DEFAULT   50
#define	ADCFILTER_CLT_DEFAULT   180
#define	ADCFILTER_IAT_DEFAULT   180
#define	ADCFILTER_O2_DEFAULT   128
#define	ADCFILTER_BAT_DEFAULT   128
#define	ADCFILTER_MAP_DEFAULT   20
#define	ADCFILTER_BARO_DEFAULT   64
#define	ADCFILTER_PSI_DEFAULT   150
#define	FILTER_FLEX_DEFAULT   75
#define	BARO_MIN   65
#define	BARO_MAX   108
#define	VSS_GEAR_HYSTERESIS   10
#define	VSS_SAMPLES   4
#define	TPS_READ_FREQUENCY   30
#define	READ_FLEX()   digitalRead(pinFlex)
#define	ADMUX_DEFAULT_CONFIG   0x40
#define	ADC_FILTER(input, alpha, prior)   (((long)input * (256 - alpha) + ((long)prior * alpha))) >> 8
	Simple low pass IIR filter macro for the analog inputs This is effectively implementing the smooth filter from playground.arduino.cc/Main/Smooth But removes the use of floats and uses 8 bits of fixed precision.

Functions
void	initialiseADC (void)
void	readTPS (bool useFilter=true)
void	readO2_2 (void)
void	flexPulse (void)
void	knockPulse (void)
uint32_t	vssGetPulseGap (byte toothHistoryIndex)
	Returns the VSS pulse gap for a given history point.
void	vssPulse (void)
	The ISR function for VSS pulses.
uint16_t	getSpeed (void)
byte	getGear (void)
byte	getFuelPressure (void)
byte	getOilPressure (void)
uint16_t	readAuxanalog (uint8_t analogPin)
uint16_t	readAuxdigital (uint8_t digitalPin)
void	readCLT (bool useFilter=true)
void	readIAT (void)
void	readO2 (void)
void	readBat (void)
void	readBaro (void)
void	readMAP (void)
void	instanteneousMAPReading (void)
uint8_t	getAnalogKnock (void)

Variables
volatile byte	flexCounter
volatile unsigned long	flexStartTime
volatile unsigned long	flexPulseWidth
unsigned int	MAPcount
uint32_t	MAPcurRev
bool	auxIsEnabled
uint16_t	MAPlast
unsigned long	MAP_time
unsigned long	MAPlast_time

Macro Definition Documentation

ADC_FILTER

#define ADC_FILTER	(		input,
			alpha,
			prior
	)		(((long)input * (256 - alpha) + ((long)prior * alpha))) >> 8

Simple low pass IIR filter macro for the analog inputs This is effectively implementing the smooth filter from playground.arduino.cc/Main/Smooth But removes the use of floats and uses 8 bits of fixed precision.

ADCFILTER_BARO_DEFAULT

#define ADCFILTER_BARO_DEFAULT   64

ADCFILTER_BAT_DEFAULT

#define ADCFILTER_BAT_DEFAULT   128

ADCFILTER_CLT_DEFAULT

#define ADCFILTER_CLT_DEFAULT   180

ADCFILTER_IAT_DEFAULT

#define ADCFILTER_IAT_DEFAULT   180

ADCFILTER_MAP_DEFAULT

#define ADCFILTER_MAP_DEFAULT   20

ADCFILTER_O2_DEFAULT

#define ADCFILTER_O2_DEFAULT   128

ADCFILTER_PSI_DEFAULT

#define ADCFILTER_PSI_DEFAULT   150

ADCFILTER_TPS_DEFAULT

#define ADCFILTER_TPS_DEFAULT   50

ADMUX_DEFAULT_CONFIG

#define ADMUX_DEFAULT_CONFIG   0x40

BARO_MAX

#define BARO_MAX   108

BARO_MIN

#define BARO_MIN   65

FILTER_FLEX_DEFAULT

#define FILTER_FLEX_DEFAULT   75

READ_FLEX

#define READ_FLEX

(

)

digitalRead(pinFlex)

TPS_READ_FREQUENCY

#define TPS_READ_FREQUENCY   30

VSS_GEAR_HYSTERESIS

#define VSS_GEAR_HYSTERESIS   10

VSS_SAMPLES

#define VSS_SAMPLES   4

Function Documentation

flexPulse()

void flexPulse

(

void

)

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getAnalogKnock()

uint8_t getAnalogKnock

(

void

)

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getFuelPressure()

byte getFuelPressure

(

void

)

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getGear()

byte getGear

(

void

)

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getOilPressure()

byte getOilPressure

(

void

)

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getSpeed()

uint16_t getSpeed

(

void

)

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initialiseADC()

void initialiseADC

(

void

)

Init all ADC conversions by setting resolutions, etc.

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instanteneousMAPReading()

void instanteneousMAPReading

(

void

)

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knockPulse()

void knockPulse

(

void

)

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readAuxanalog()

uint16_t readAuxanalog

(

uint8_t

analogPin

)

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readAuxdigital()

uint16_t readAuxdigital

(

uint8_t

digitalPin

)

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readBaro()

void readBaro

(

void

)

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readBat()

void readBat

(

void

)

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readCLT()

void readCLT

(

bool

useFilter = true

)

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readIAT()

void readIAT

(

void

)

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readMAP()

void readMAP

(

void

)

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readO2()

void readO2

(

void

)

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readO2_2()

void readO2_2

(

void

)

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readTPS()

void readTPS

(

bool

useFilter = true

)

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vssGetPulseGap()

uint32_t vssGetPulseGap

(

byte

historyIndex

)

Returns the VSS pulse gap for a given history point.

Parameters

historyIndex

The gap number that is wanted. EG: historyIndex = 0 = Latest entry historyIndex = 1 = 2nd entry entry

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vssPulse()

void vssPulse

(

void

)

The ISR function for VSS pulses.

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Variable Documentation

auxIsEnabled

bool auxIsEnabled

extern

flexCounter

volatile byte flexCounter

extern

flexPulseWidth

volatile unsigned long flexPulseWidth

extern

flexStartTime

volatile unsigned long flexStartTime

extern

MAP_time

unsigned long MAP_time

extern

MAPcount

unsigned int MAPcount

extern

MAPcurRev

uint32_t MAPcurRev

extern

MAPlast

uint16_t MAPlast

extern

The previous MAP reading

MAPlast_time

unsigned long MAPlast_time

extern