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Dependencies: HC_SR04_Ultrasonic_Library Servo mbed
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Diff: Sensor_Shield/lps25h.h
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Sensor_Shield/lps25h.h Tue May 19 16:53:44 2015 +0000 @@ -0,0 +1,551 @@ +/** + ****************************************************************************** + * @file lps25h.h + * @author MEMS Application Team + * @version V1.0.0 + * @date 30-July-2014 + * @brief This file contains definitions for the lps25h.c + * firmware driver. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> + * + * 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 of STMicroelectronics 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 HOLDER 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. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __LPS25H_H +#define __LPS25H_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "pressure.h" + +/** @addtogroup BSP + * @{ + */ + +/** @addtogroup LPS25H + * @{ + */ + +/** @defgroup LPS25H_Exported_Constants + * @{ + */ + +/******************************************************************************/ +/*************************** START REGISTER MAPPING **************************/ +/******************************************************************************/ + + +/** + * @brief Reference pressure (LSB data) + * \code + * Read/write + * Default value: 0x00 + * 7:0 REF7-ODR0: Lower part of the reference pressure that + * is sum to the sensor output pressure. + * \endcode + */ +#define LPS25H_REF_P_XL_ADDR 0x08 + +/** + * @brief Reference pressure (middle part) + * \code + * Read/write + * Default value: 0x00 + * 7:0 REF15-ODR8: Middle part of the reference pressure that + * is sum to the sensor output pressure. + * \endcode + */ +#define LPS25H_REF_P_L_ADDR 0x09 + +/** + * @brief Reference pressure (MSB part) + * \code + * Read/write + * Default value: 0x00 + * 7:0 REF15-ODR8: Higher part of the reference pressure that + * is sum to the sensor output pressure. + * \endcode + */ +#define LPS25H_REF_P_H_ADDR 0x0A + +/** + * @brief Device identifier register. + * \code + * Read + * Default value: 0xBD + * 7:0 This read-only register contains the device identifier that, + for LPS25H, is set to 0xCA. + * \endcode + */ +#define LPS25H_WHO_AM_I_ADDR 0x0F + +/** + * @brief Pressure and temperature resolution mode register. + * \code + * Read + * Default value: 0x05 + * [7:4] Reserved + * [3:2] AVGP1-0: select the pressure internal average. + * [1:0] AVGT1-0: select the temperature internal average. + * \endcode + */ +#define LPS25H_RES_CONF_ADDR 0x10 + +/** + * @brief Pressure sensor control register 1 + * \code + * Read/write + * Default value: 0x00 + * 7 PD: power down control. 0 - disable; 1 - enable + * 6:4 ODR2, ODR1, ODR0: output data rate selection. + * ODR2 | ODR1 | ODR0 | Pressure output data-rate(Hz) | Temperature output data-rate(Hz) + * ---------------------------------------------------------------------------------- + * 0 | 0 | 0 | one shot | one shot + * 0 | 0 | 1 | 1 | 1 + * 0 | 1 | 0 | 7 | 7 + * 0 | 1 | 1 | 12.5 | 12.5 + * 1 | 0 | 0 | 25 | 25 + * 1 | 0 | 1 | Reserved | Reserved + * 1 | 1 | 0 | Reserved | Reserved + * 1 | 1 | 1 | Reserved | Reserved + * + * 3 DIFF_EN: Interrupt circuit. 0 - disable; 1 - enable + * 2 BDU: block data update. 0 - disable; 1 - enable + * 1 DELTA_EN: delta pressure. 0 - disable; 1 - enable + * 1 RESET_AZ: reset AutoZero. 0 - disable; 1 - enable ///////ALE REVIEW + * 0 SIM: SPI Serial Interface Mode selection. 0 - SPI 4-wire; 1 - SPI 3-wire ///////ALE REVIEW + * \endcode + */ +#define LPS25H_CTRL_REG1_ADDR 0x20 + +/** + * @brief Pressure sensor control register 2 + * \code + * Read/write + * Default value: 0x00 + * 7 BOOT: Reboot memory content. 0: normal mode; 1: reboot memory content + * 6 FIFO_EN: FIFO. 0: disable; 1: enable + * 5 WTM_EN: FIFO Watermark level use. 0: disable; 1: enable + * 4:3 Reserved. keep these bits at 0 + * 2 SWRESET: Software reset. 0: normal mode; 1: SW reset. + * 1 AUTO_ZERO: Autozero enable. 0: normal mode; 1: autozero enable. + * 0 ONE_SHOT: One shot enable. 0: waiting for start of conversion; 1: start for a new dataset + * \endcode + */ +#define LPS25H_CTRL_REG2_ADDR 0x21 + +/** + * @brief Pressure sensor control register 3 + * \code + * Read/write + * Default value: 0x00 + * 7 INT_H_L: Interrupt. 0:active high; 1: active low. + * 6 PP_OD: Push-Pull/OpenDrain selection on interrupt pads. 0: Push-pull; 1: open drain. + * 5 Reserved + * 4:3 INT2_S2, INT2_S1: INT2 output signal selection control bits. // TO DO + * 1:0 INT1_S2, INT1_S1: data signal on INT1 pad control bits. + * INT1(2)_S2 | INT1(2)_S1 | INT1(2) pin + * ------------------------------------------------------ + * 0 | 0 | Data signal + * 0 | 1 | Pressure high (P_high) + * 1 | 0 | Pressure low (P_low) + * 1 | 1 | P_low OR P_high + + + * \endcode + */ +#define LPS25H_CTRL_REG3_ADDR 0x22 + +/** + * @brief Pressure sensor control register 4 + * \code + * Read/write + * Default value: 0x00 + * 7 P2_EMPTY: Empty Signal on INT2 pin. + * 6 P2_WTM: Watermark Signal on INT2 pin. + * 5 P2_Overrun:Overrun Signal on INT2 pin. + * 4 P2_DRDY: Data Ready Signal on INT2 pin. + * 3 P1_EMPTY: Empty Signal on INT1 pin. + * 2 P1_WTM: Watermark Signal on INT1 pin. + * 1 P1_Overrunn:Overrun Signal on INT1 pin. + * 0 P1_DRDY: Data Ready Signal on INT1 pin. + * \endcode + */ +#define LPS25H_CTRL_REG4_ADDR 0x23 + +/** + * @brief Interrupt configuration Register + * \code + * Read/write + * Default value: 0x00. + * 7:3 Reserved. + * 2 LIR: Latch Interrupt request into INT_SOURCE register. 0 - disable; 1 - enable + * 1 PL_E: Enable interrupt generation on differential pressure low event. 0 - disable; 1 - enable + * 0 PH_E: Enable interrupt generation on differential pressure high event. 0 - disable; 1 - enable + * \endcode + */ +#define LPS25H_INT_CFG_REG_ADDR 0x24 + +/** + * @brief Interrupt source Register + * \code + * Read + * Default value: 0x00. + * 7:3 0. + * 2 IA: Interrupt Active.0: no interrupt has been generated; 1: one or more interrupt events have been generated. + * 1 PL: Differential pressure Low. 0: no interrupt has been generated; 1: Low differential pressure event has occurred. + * 0 PH: Differential pressure High. 0: no interrupt has been generated; 1: High differential pressure event has occurred. + * \endcode + */ +#define LPS25H_INT_SOURCE_REG_ADDR 0x25 + +/** + * @brief Threshold pressure (LSB) + * \code + * Read + * Default value: 0x00. + * 7:0 THS7-THS0: Low part of threshold value for pressure interrupt + * generation. The complete threshold value is given by THS_P_H & THS_P_L and is + * expressed as unsigned number. P_ths(mbar)=(THS_P_H & THS_P_L)[dec]/16. + * \endcode + */ +#define LPS25H_THS_P_LOW_REG_ADDR 0x30 + +/** + * @brief Threshold pressure (MSB) + * \code + * Read + * Default value: 0x00. + * 7:0 THS15-THS8: High part of threshold value for pressure interrupt + * generation. The complete threshold value is given by THS_P_H & THS_P_L and is + * expressed as unsigned number. P_ths(mbar)=(THS_P_H & THS_P_L)[dec]/16. + * \endcode + */ +#define LPS25H_THS_P_HIGH_REG_ADDR 0x31 + +/** + * @brief Status Register + * \code + * Read + * Default value: 0x00 + * 7:6 0 + * 5 P_OR: Pressure data overrun. 0: no overrun has occurred; 1: new data for pressure has overwritten the previous one. + * 4 T_OR: Temperature data overrun. 0: no overrun has occurred; 1: a new data for temperature has overwritten the previous one. + * 3:2 0 + * 1 P_DA: Pressure data available. 0: new data for pressure is not yet available; 1: new data for pressure is available. + * 0 T_DA: Temperature data available. 0: new data for temperature is not yet available; 1: new data for temperature is available. + * \endcode + */ +#define LPS25H_STATUS_REG_ADDR 0x27 + +/** + * @brief Pressure data (LSB). + * \code + * Read + * Default value: 0x00. + * POUT7 - POUT0: Pressure data LSB (2's complement). + * Pressure output data: Pout(mbar)=(PRESS_OUT_H & PRESS_OUT_L & + * PRESS_OUT_XL)[dec]/4096. + * \endcode + */ +#define LPS25H_PRESS_POUT_XL_ADDR 0x28 + +/** + * @brief Pressure data (Middle part). + * \code + * Read + * Default value: 0x80. + * POUT15 - POUT8: Pressure data middle part (2's complement). + * Pressure output data: Pout(mbar)=(PRESS_OUT_H & PRESS_OUT_L & + * PRESS_OUT_XL)[dec]/4096. + * \endcode + */ +#define LPS25H_PRESS_OUT_L_ADDR 0x29 + +/** + * @brief Pressure data (MSB). + * \code + * Read + * Default value: 0x2F. + * POUT23 - POUT16: Pressure data MSB (2's complement). + * Pressure output data: Pout(mbar)=(PRESS_OUT_H & PRESS_OUT_L & + * PRESS_OUT_XL)[dec]/4096. + * \endcode + */ +#define LPS25H_PRESS_OUT_H_ADDR 0x2A + +/** + * @brief Temperature data (LSB). + * \code + * Read + * Default value: 0x00. + * TOUT7 - TOUT0: temperature data LSB. + * T(degC) = 42.5 + (Temp_OUTH & TEMP_OUT_L)[dec]/480. + * \endcode + */ +#define LPS25H_TEMP_OUT_L_ADDR 0x2B + +/** + * @brief Temperature data (MSB). + * \code + * Read + * Default value: 0x00. + * TOUT15 - TOUT8: temperature data MSB. + * T(degC) = 42.5 + (Temp_OUTH & TEMP_OUT_L)[dec]/480. + * \endcode + */ +#define LPS25H_TEMP_OUT_H_ADDR 0x2C + +/** + * @brief FIFO control register + * \code + * Read/write + * Default value: 0x00 + * 7:5 F_MODE2, F_MODE1, F_MODE0: FIFO mode selection. + * FM2 | FM1 | FM0 | FIFO MODE + * --------------------------------------------------- + * 0 | 0 | 0 | BYPASS MODE + * 0 | 0 | 1 | FIFO MODE. Stops collecting data when full + * 0 | 1 | 0 | STREAM MODE: Keep the newest measurements in the FIFO + * 0 | 1 | 1 | STREAM MODE until trigger deasserted, then change to FIFO MODE + * 1 | 0 | 0 | BYPASS MODE until trigger deasserted, then STREAM MODE + * 1 | 0 | 1 | Reserved + * 1 | 1 | 0 | FIFO_MEAN MODE: Fifo is used to generate a running average filtered pressure + * 1 | 1 | 1 | BYPASS mode until trigger deasserted, then FIFO MODE + * + * 4:0 FIFO Mean Mode Sample size + * WTM_POINT4 | WTM_POINT4 | WTM_POINT4 | WTM_POINT4 | WTM_POINT4 | Sample Size + * ---------------------------------------------------------------------------------- + * 0 | 0 | 0 | 0 | 1 | 2 + * 0 | 0 | 0 | 1 | 1 | 4 + * 0 | 0 | 1 | 1 | 1 | 8 + * 0 | 1 | 1 | 1 | 1 | 16 + * 1 | 1 | 1 | 1 | 1 | 32 + * other values operation not guaranteed + * \endcode + */ +#define LPS25H_CTRL_FIFO_ADDR 0x2E + +/** + * @brief FIFO Status register + * \code + * Read/write + * Default value: 0x00 + * 7 WTM_FIFO: Watermark status. 0:FIFO filling is lower than watermark level; 1: FIFO is equal or higher than watermark level. + * 6 FULL_FIFO: Overrun bit status. 0 - FIFO not full; 1 -FIFO is full. + * 5 EMPTY_FIFO: Empty FIFO bit. 0 - FIFO not empty; 1 -FIFO is empty. + * 4:0 DIFF_POINT4...0: FIFOsStored data level. + * \endcode + */ +#define LPS25H_STATUS_FIFO_ADDR 0x2F + +/** + * @brief Pressure offset register + * \code + * Read/write + * Default value: 0x00 + * 7:0 RPDS15...8:Pressure Offset for 1 point calibration after soldering. + * \endcode + */ +#define LPS25H_RPDS_TRIM_L_ADDR 0x39 + +/** + * @brief Pressure offset register + * \code + * Read/write + * Default value: 0x00 + * 7:0 RPDS23...16:Pressure Offset for 1 point calibration after soldering. + * \endcode + */ +#define LPS25H_RPDS_TRIM_H_ADDR 0x3A + +/******************************************************************************/ +/**************************** END REGISTER MAPPING ***************************/ +/******************************************************************************/ + +/** + * @brief Device Address + */ +#define LPS25H_ADDRESS_LOW 0xB8 +#define LPS25H_ADDRESS_HIGH 0xBA + + +/** + * @brief Device Identifier. Default value of the WHO_AM_I register. + */ +#define I_AM_LPS25H ((uint8_t)0xBD) + +/** @defgroup Power_Mode_selection CTRL_REG1 + * @{ + */ +#define LPS25H_MODE_POWERDOWN ((uint8_t)0x00) +#define LPS25H_MODE_ACTIVE ((uint8_t)0x80) + +#define LPS25H_MODE_MASK ((uint8_t)0x80) +/** + * @} + */ + +/** @defgroup LPS25H Output Data Rate selection CTRL_REG1 + * @{ + */ +#define LPS25H_ODR_ONE_SHOT ((uint8_t)0x00) /*!< Output Data Rate: P - one shot, T - one shot */ +#define LPS25H_ODR_1Hz ((uint8_t)0x10) /*!< Output Data Rate: P - 1Hz, T - 1Hz */ +#define LPS25H_ODR_7Hz ((uint8_t)0x20) /*!< Output Data Rate: P - 7Hz, T - 7Hz */ +#define LPS25H_ODR_12_5Hz ((uint8_t)0x30) /*!< Output Data Rate: P - 12.5Hz, T - 12.5Hz */ +#define LPS25H_ODR_25Hz ((uint8_t)0x40) /*!< Output Data Rate: P - 25Hz, T - 25Hz */ + +#define LPS25H_ODR_MASK ((uint8_t)0x70) +/** + * @} + */ + +/** @defgroup LPS25H Interrupt circuit enable CTRL_REG1 + * @{ + */ +#define LPS25H_DIFF_DISABLE ((uint8_t)0x00) /*!< interrupt circuit enabled */ +#define LPS25H_DIFF_ENABLE ((uint8_t)0x08) /*!< interrupt generation disabled */ + +#define LPS25H_DIFF_EN_MASK ((uint8_t)0x08) +/** + * @} + */ + +/** @defgroup LPS25H block data update CTRL_REG1 + * @{ + */ +#define LPS25H_BDU_CONT ((uint8_t)0x00) /*!< continuous update */ +#define LPS25H_BDU_READ ((uint8_t)0x04) /*!< output registers not updated until MSB and LSB reading */ + +#define LPS25H_BDU_MASK ((uint8_t)0x04) +/** + * @} + */ + +/** @defgroup LPS25H SPI Serial Interface Mode selection CTRL_REG1 + * @{ + */ +#define LPS25H_SPI_SIM_4W ((uint8_t)0x00) /*!< 4-wire interface */ +#define LPS25H_SPI_SIM_3W ((uint8_t)0x01) /*!< 3-wire interface */ + +#define LPS25H_SPI_SIM_MASK ((uint8_t)0x01) +/** + * @} + */ + +/** @defgroup LPS25H o refresh the content of the internal registers stored in the Flash memory +block CTRL_REG2 + * @{ + */ +#define LPS25H_NORMAL_MODE ((uint8_t)0x00) +#define LPS25H_RESET_MEMORY ((uint8_t)0x80) + +#define LPS25H_RESET_MEMORY_MASK ((uint8_t)0x80) +/** + * @} + */ + +/** @defgroup LPS25H Pressure resolution selection RES_CONF + * @{ + */ +#define LPS25H_P_RES_AVG_8 ((uint8_t)0x00) +#define LPS25H_P_RES_AVG_32 ((uint8_t)0x01) +#define LPS25H_P_RES_AVG_128 ((uint8_t)0x02) +#define LPS25H_P_RES_AVG_512 ((uint8_t)0x03) + +#define LPS25H_P_RES_MASK ((uint8_t)0x03) +/** + * @} + */ + +/** @defgroup LPS25H Temperature resolution RES_CONF + * @{ + */ +#define LPS25H_T_RES_AVG_8 ((uint8_t)0x00) +#define LPS25H_T_RES_AVG_16 ((uint8_t)0x04) +#define LPS25H_T_RES_AVG_32 ((uint8_t)0x08) +#define LPS25H_T_RES_AVG_64 ((uint8_t)0x0C) + +#define LPS25H_T_RES_MASK ((uint8_t)0x0C) +/** + * @} + */ + +#define LPS25H_SA0_LOW ((uint8_t)0x00) +#define LPS25H_SA0_HIGH ((uint8_t)0x01) + +/** + * @} + */ + +/** @defgroup LPS25H_Exported_Functions + * @{ + */ +/* Sensor Configuration Functions */ +void LPS25H_Init(PRESSURE_InitTypeDef *LPS25H_Init); +uint8_t LPS25H_ReadID(void); +void LPS25H_RebootCmd(void); +void LPS25H_GetPressure(float* pfData); +void LPS25H_GetTemperature(float* pfData); +void LPS25H_PowerOff(void); +void LPS25H_SlaveAddrRemap(uint8_t); + +/* Pressure sensor driver structure */ +extern PRESSURE_DrvTypeDef LPS25HDrv; + +/* Pressure sensor IO functions */ +void PRESSURE_IO_Init(void); +void PRESSURE_IO_Write(uint8_t* pBuffer, uint8_t DeviceAddr, uint8_t WriteAddr, + uint16_t NumByteToWrite); +void PRESSURE_IO_Read(uint8_t* pBuffer, uint8_t DeviceAddr, + uint8_t RegisterAddr, uint16_t NumByteToRead); + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __LPS25H_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +