BMP180.h

/*
 * BMP180.h
 *
 *  Created on: Apr 28, 2012
 *      Author: sapan
 */

#ifndef BMP180_H_
#define BMP180_H_

//#include "plutoconf.h"
#include "stdint.h"
#include "hal.h"

#define BMP_ADDR	0b1110111
#define I2C_BMP		I2CD2

#define BOSCH_CTL				0xF4 // Measurement Control Register.
#define BOSCH_ADC_MSB			0xF6 // Read Only Register. Contains Output Data.
#define BOSCH_ADC_LSB			0xF7 // Read Only Register. Contains Output Data.
#define BOSCH_ADC_XLSB			0xF8 // Read Only Register. Contains Output Data.
#define BOSCH_ID				0xD0 // Read Only Register. Value is 0x55 can be used to check communication.
#define SOFT_RESET				0xE0 // Write Only Register. If sets to 0xB6 performs same sequence as power on reset

#define BOSCH_TEMP				0x2E // Value of Control Register for temperature measurment
#define BOSCH_OSS0				0x34 // Value of Control Register for Conversion time 4.5ms
#define BOSCH_OSS1				0x74 // Value of Control Register for Conversion time 7.5ms
#define BOSCH_OSS2				0xB4 // Value of Control Register for Conversion time 13.5ms
#define BOSCH_OSS3				0xF4 // Value of Control Register for Conversion time 25.5ms

#define BOSCH_PRES  			0xF4 // pressure with OSRS=3 (page 17 in manual)

#define ULTRA_LOW_POWER 		0
#define STANDARD				1
#define HIGH_RESOLUTION			2
#define ULTRA_HIGH_RESOLUTION	3

extern int16_t delay_bmp180, delay_bmp180_temperature, reg1[8] ;
extern uint8_t oss, measurement_mode ;
extern uint16_t reg2[3] ;

typedef struct {
	uint8_t OSS ;
	int16_t DELAY_PRESSURE ;
	int16_t DELAY_TEMP ;
	int16_t MEASUREMENT_MODE ;
	int16_t AC1 ;
	int16_t AC2 ;
	int16_t AC3 ;
	uint16_t AC4 ;
	uint16_t AC5 ;
	uint16_t AC6 ;
	int16_t B1  ;
	int16_t B2  ;
	int16_t MB  ;
	int16_t MC  ;
	int16_t MD  ;
	float PRESSURE ;
	float TEMP ;
}BaroData;

extern BaroData BD1 ;

void initialize_bmp180(BaroData *baro, uint8_t operating_mode) ;
void read_bmp180_coefficient(BaroData *baro) ;

#endif /* BMP180_H_ */