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62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @addtogroup PIOS_BMP280 BMP280 Functions
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* @brief Hardware functions to deal with the altitude pressure sensor
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* @{
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*
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* @file pios_bmp280.h
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* @author The LibrePilot Team, http://www.librepilot.org Copyright (C) 2017.
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* @brief BMP280 functions header.
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PIOS_BMP280_H
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#define PIOS_BMP280_H
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#include <pios_sensors.h>
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#define BMP280_OVERSAMP_SKIPPED (0x00)
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#define BMP280_OVERSAMP_1X (0x01)
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#define BMP280_OVERSAMP_2X (0x02)
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#define BMP280_OVERSAMP_4X (0x03)
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#define BMP280_OVERSAMP_8X (0x04)
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#define BMP280_OVERSAMP_16X (0x05)
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#define BMP280_PRESSURE_OSR(x) (x << 2)
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#define BMP280_TEMPERATURE_OSR(x) (x << 5)
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#define BMP280_STANDARD_RESOLUTION (BMP280_PRESSURE_OSR(BMP280_OVERSAMP_4X) | BMP280_TEMPERATURE_OSR(BMP280_OVERSAMP_1X))
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#define BMP280_HIGH_RESOLUTION (BMP280_PRESSURE_OSR(BMP280_OVERSAMP_8X) | BMP280_TEMPERATURE_OSR(BMP280_OVERSAMP_1X))
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#define BMP280_ULTRA_HIGH_RESOLUTION (BMP280_PRESSURE_OSR(BMP280_OVERSAMP_16X) | BMP280_TEMPERATURE_OSR(BMP280_OVERSAMP_2X))
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struct pios_bmp280_cfg {
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uint8_t oversampling;
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};
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/* Public Functions */
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extern void PIOS_BMP280_Init(const struct pios_bmp280_cfg *cfg, uint32_t i2c_device);
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#endif /* PIOS_BMP280_H */
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/**
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* @}
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* @}
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*/
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