sensors.h

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#ifndef SENSORS_H
#define SENSORS_H
 
#include "timers.h"
#include "config_pages.h"
#include "statuses.h"
#include "table2d.h"
 
// The following are alpha values for the ADC filters.
// Their values are from 0 to 240, with 0 being no filtering and 240 being maximum
#define ADCFILTER_TPS_DEFAULT   50U
#define ADCFILTER_CLT_DEFAULT  180U
#define ADCFILTER_IAT_DEFAULT  180U
#define ADCFILTER_O2_DEFAULT   128U
#define ADCFILTER_BAT_DEFAULT  128U
#define ADCFILTER_MAP_DEFAULT   20U //This is only used on Instantaneous MAP readings and is intentionally very weak to allow for faster response
#define ADCFILTER_BARO_DEFAULT  64U
 
#define ADCFILTER_PSI_DEFAULT  150U //not currently configurable at runtime, used for misc pressure sensors, oil, fuel, etc.
 
#define FILTER_FLEX_DEFAULT     75U
 
#define VSS_GEAR_HYSTERESIS 10U
#define VSS_SAMPLES         4U //Must be a power of 2 and smaller than 255
 
extern volatile uint8_t flexCounter;
extern volatile uint32_t flexPulseWidth;
 
#define BIT_SENSORS_AUX_ENBL        0
#define BIT_SENSORS_BARO_SAVED      1
#define BIT_SENSORS_UNUSED2         2
#define BIT_SENSORS_UNUSED3         3
#define BIT_SENSORS_UNUSED4         4
#define BIT_SENSORS_UNUSED5         5
#define BIT_SENSORS_UNUSED6         6
#define BIT_SENSORS_UNUSED7         7
extern uint8_t statusSensors; //Uses the above status bits
 
void initialiseADC(void);
void flexPulse(void);
void initialiseFlexSensor(config2 &page2, statuses &current, uint8_t pin);
void knockPulse(void);
uint32_t vssGetPulseGap(byte toothHistoryIndex);
void vssPulse(void);
uint16_t readAuxanalog(uint8_t analogPin);
uint16_t readAuxdigital(uint8_t digitalPin);
 
void initialiseTPS(void);
 
void initialiseCLT(void);
 
#define TPS_READ_FREQUENCY  30 //ONLY VALID VALUES ARE 15 or 30!!!
 
#if TPS_READ_FREQUENCY==30
#define TPS_READ_TIMER_BIT BIT_TIMER_30HZ
#elif TPS_READ_FREQUENCY==15
#define TPS_READ_TIMER_BIT BIT_TIMER_15HZ
#else
#error
#endif
 
#define CLT_READ_TIMER_BIT BIT_TIMER_4HZ
 
#define IAT_READ_TIMER_BIT BIT_TIMER_4HZ
 
#define O2_READ_TIMER_BIT BIT_TIMER_30HZ
 
#define BAT_READ_TIMER_BIT BIT_TIMER_4HZ
 
#define BARO_READ_TIMER_BIT BIT_TIMER_1HZ
 
#define MAP_READ_TIMER_BIT BIT_TIMER_1KHZ
 
void readPolledSensors(byte loopTimer);
 
void initialiseMAPBaro(void);
void resetMAPcycleAndEvent(void);
 
uint8_t getAnalogKnock(void);
 
int16_t getMAPDelta(void);
 
uint32_t getMAPDeltaTime(void);
 
extern table2D_u16_u8_32 cltCalibrationTable;
extern table2D_u16_u8_32 iatCalibrationTable;
extern table2D_u16_u8_32 o2CalibrationTable; 
 
#endif // SENSORS_H