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LibrePilot/flight/pios/inc/pios_ms5611.h

82 lines
2.4 KiB
C

/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_MS5611 MS5611 Functions
* @brief Hardware functions to deal with the altitude pressure sensor
* @{
*
* @file pios_ms5611.h
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
* @brief MS5611 functions header.
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PIOS_MS5611_H
#define PIOS_MS5611_H
/* BMP085 Addresses */
#define MS5611_I2C_ADDR 0x77
#define MS5611_RESET 0x1E
#define MS5611_CALIB_ADDR 0xA2 /* First sample is factory stuff */
#define MS5611_CALIB_LEN 16
#define MS5611_ADC_READ 0x00
#define MS5611_PRES_ADDR 0x40
#define MS5611_TEMP_ADDR 0x50
#define MS5611_ADC_MSB 0xF6
#define MS5611_P0 101.3250f
/* Local Types */
typedef struct {
uint16_t C[6];
} MS5611CalibDataTypeDef;
typedef enum {
PressureConv,
TemperatureConv
} ConversionTypeTypeDef;
struct pios_ms5611_cfg {
uint32_t oversampling;
};
enum pios_ms5611_osr {
MS5611_OSR_256 = 0,
MS5611_OSR_512 = 2,
MS5611_OSR_1024 = 4,
MS5611_OSR_2048 = 6,
MS5611_OSR_4096 = 8,
};
/* Public Functions */
extern void PIOS_MS5611_Init(const struct pios_ms5611_cfg *cfg, int32_t i2c_device);
extern int32_t PIOS_MS5611_StartADC(ConversionTypeTypeDef Type);
extern int32_t PIOS_MS5611_ReadADC(void);
extern float PIOS_MS5611_GetTemperature(void);
extern float PIOS_MS5611_GetPressure(void);
extern int32_t PIOS_MS5611_Test();
extern int32_t PIOS_MS5611_GetDelay();
#endif /* PIOS_MS5611_H */
/**
* @}
* @}
*/