ST / BSP_B-L475E-IOT01

Contains the BSP driver for the B-L475E-IOT01 board.

Dependents:   mbed-os-example-ble-Thermometer DISCO_L475VG_IOT01-Telegram-BOT DISCO_L475VG_IOT01-sche_cheveux DISCO_L475VG_IOT01-QSPI_FLASH_FILE_SYSTEM ... more

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stm32l475e_iot01_psensor.c

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00001 /**
00002   ******************************************************************************
00003   * @file    stm32l475e_iot01_psensor.c
00004   * @author  MCD Application Team
00005   * @brief   This file provides a set of functions needed to manage the pressure sensor
00006   ******************************************************************************
00007   * @attention
00008   *
00009   * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
00010   * All rights reserved.</center></h2>
00011   *
00012   * This software component is licensed by ST under BSD 3-Clause license,
00013   * the "License"; You may not use this file except in compliance with the
00014   * License. You may obtain a copy of the License at:
00015   *                        opensource.org/licenses/BSD-3-Clause
00016   *
00017   ******************************************************************************
00018   */
00019 
00020 /* Includes ------------------------------------------------------------------*/
00021 #include "stm32l475e_iot01_psensor.h"
00022 
00023 /** @addtogroup BSP
00024   * @{
00025   */ 
00026 
00027 /** @addtogroup STM32L475E_IOT01
00028   * @{
00029   */
00030 
00031 /** @defgroup STM32L475E_IOT01_PRESSURE PRESSURE
00032   * @{
00033   */
00034 
00035 /** @defgroup STM32L475E_IOT01_PRESSURE_Private_Variables PRESSURE Private Variables 
00036   * @{
00037   */ 
00038 static PSENSOR_DrvTypeDef *Psensor_drv;  
00039 /**
00040   * @}
00041   */
00042 
00043 /** @defgroup STM32L475E_IOT01_PRESSURE_Private_Functions PRESSURE Private Functions
00044   * @{
00045   */ 
00046 
00047 /**
00048   * @brief  Initializes peripherals used by the I2C Pressure Sensor driver.
00049   * @retval PSENSOR status
00050   */
00051 uint32_t BSP_PSENSOR_Init(void)
00052 {
00053   uint32_t ret;
00054    
00055   if(LPS22HB_P_Drv.ReadID(LPS22HB_I2C_ADDRESS) != LPS22HB_WHO_AM_I_VAL)
00056   {
00057     ret = PSENSOR_ERROR;
00058   }
00059   else
00060   {
00061      Psensor_drv = &LPS22HB_P_Drv;
00062      
00063     /* PSENSOR Init */   
00064     Psensor_drv->Init(LPS22HB_I2C_ADDRESS);
00065     ret = PSENSOR_OK;
00066   }
00067   
00068   return ret;
00069 }
00070 
00071 /**
00072   * @brief  Read ID of LPS22HB.
00073   * @retval LPS22HB ID value.
00074   */
00075 uint8_t BSP_PSENSOR_ReadID(void)
00076 { 
00077   return Psensor_drv->ReadID(LPS22HB_I2C_ADDRESS);
00078 }
00079 
00080 /**
00081   * @brief  Read Pressure register of LPS22HB.
00082   * @retval LPS22HB measured pressure value.
00083   */
00084 float BSP_PSENSOR_ReadPressure(void)
00085 { 
00086   return Psensor_drv->ReadPressure(LPS22HB_I2C_ADDRESS);
00087 }
00088 /**
00089   * @}
00090   */
00091 
00092 /**
00093   * @}
00094   */
00095 
00096 /**
00097   * @}
00098   */
00099 
00100 /**
00101   * @}
00102   */
00103 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/