Subversion Repositories FlightCtrl

#ifndef _ANALOG_H

#define _ANALOG_H

#include <inttypes.h>

extern volatile uint16_t MeasurementCounter;

extern volatile int16_t UBat;

extern volatile int16_t AdValueGyroNick, AdValueGyroRoll, AdValueGyroYaw;

#define HIRES_GYRO_AMPLIFY 8 // the offset corrected HiResGyro values are a factor of 8 scaled to the AdValues

extern volatile int16_t HiResGyroNick, HiResGyroRoll;

extern volatile int16_t FilterHiResGyroNick, FilterHiResGyroRoll;

extern volatile int16_t AdValueAccRoll, AdValueAccNick, AdValueAccTop, AdValueAccZ;

#define AIR_PRESSURE_SCALE 18 // 1 ADC counts corresponds approx. to 18 cm

#define SM_FILTER 16

extern volatile int32_t SumHeight;                      // filter for variometer

extern volatile int32_t AirPressure;            // gets less with growing height

extern volatile int32_t StartAirPressure;       // air pressure at ground

extern volatile int32_t ReadingHeight;          // height according to air pressure (altimeter in steps of 1cm)

extern volatile int16_t ReadingVario;

extern volatile int16_t AdAirPressure;  // ADC value of air pressure measurement

#define EXPANDBARO_OPA_OFFSET_STEP 10

#define EXPANDBARO_ADC_SHIFT (-523)                     // adc shift per EXPANDBARO_OPA_OFFSET_STEP

extern uint8_t PressureSensorOffset;

extern int8_t ExpandBaro;

extern volatile uint8_t ADReady;

extern uint8_t DacOffsetGyroNick, DacOffsetGyroRoll, DacOffsetGyroYaw;

#define AIR_PRESSURE_SEARCH 800

#define AIR_PRESSURE_SEARCH_MIN 750

#define AIR_PRESSURE_SEARCH_MAX 950

void SearchAirPressureOffset(void);

void SearchDacGyroOffset(void);

void ADC_Init(void);

// clear ADC enable & ADC Start Conversion & ADC Interrupt Enable bit

#define ADC_Disable() (ADCSRA &= ~((1<<ADEN)|(1<<ADSC)|(1<<ADIE)))

// set ADC enable & ADC Start Conversion & ADC Interrupt Enable bit

#define ADC_Enable() (ADCSRA |= (1<<ADEN)|(1<<ADSC)|(1<<ADIE))

#endif //_ANALOG_H