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/****************************************************************************
*
* Copyright (C) 2012-2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file ms5611.h
*
* Shared defines for the ms5611 driver.
*/
#define ADDR_RESET_CMD 0x1E /* write to this address to reset chip */
#define ADDR_CMD_CONVERT_D1 0x48 /* write to this address to start temperature conversion */
#define ADDR_CMD_CONVERT_D2 0x58 /* write to this address to start pressure conversion */
#define ADDR_DATA 0x00 /* address of 3 bytes / 32bit pressure data */
#define ADDR_PROM_SETUP 0xA0 /* address of 8x 2 bytes factory and calibration data */
#define ADDR_PROM_C1 0xA2 /* address of 6x 2 bytes calibration data */
/* interface ioctls */
#define IOCTL_RESET 2
#define IOCTL_MEASURE 3
namespace ms5611
{
/**
* Calibration PROM as reported by the device.
*/
#pragma pack(push,1)
struct prom_s {
uint16_t factory_setup;
uint16_t c1_pressure_sens;
uint16_t c2_pressure_offset;
uint16_t c3_temp_coeff_pres_sens;
uint16_t c4_temp_coeff_pres_offset;
uint16_t c5_reference_temp;
uint16_t c6_temp_coeff_temp;
uint16_t serial_and_crc;
};
/**
* Grody hack for crc4()
*/
union prom_u {
uint16_t c[8];
prom_s s;
};
#pragma pack(pop)
extern bool crc4(uint16_t *n_prom);
} /* namespace */
/* interface factories */
extern device::Device *MS5611_spi_interface(ms5611::prom_u &prom_buf, bool external_bus) weak_function;
extern device::Device *MS5611_i2c_interface(ms5611::prom_u &prom_buf) weak_function;
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