B-L475E-IOT01 BSP User Manual: stm32l475e_iot01_tsensor.c Source File

00001 /**
00002   ******************************************************************************
00003   * @file    stm32l475e_iot01_tsensor.c
00004   * @author  MCD Application Team
00005   * @version V1.0.0
00006   * @date    17-March-2017
00007   * @brief   This file provides a set of functions needed to manage the temperature sensor
00008   ******************************************************************************
00009   * @attention
00010   *
00011   * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics International N.V.
00012   * All rights reserved.</center></h2>
00013   *
00014   * Redistribution and use in source and binary forms, with or without
00015   * modification, are permitted, provided that the following conditions are met:
00016   *
00017   * 1. Redistribution of source code must retain the above copyright notice,
00018   *    this list of conditions and the following disclaimer.
00019   * 2. Redistributions in binary form must reproduce the above copyright notice,
00020   *    this list of conditions and the following disclaimer in the documentation
00021   *    and/or other materials provided with the distribution.
00022   * 3. Neither the name of STMicroelectronics nor the names of other
00023   *    contributors to this software may be used to endorse or promote products
00024   *    derived from this software without specific written permission.
00025   * 4. This software, including modifications and/or derivative works of this
00026   *    software, must execute solely and exclusively on microcontroller or
00027   *    microprocessor devices manufactured by or for STMicroelectronics.
00028   * 5. Redistribution and use of this software other than as permitted under
00029   *    this license is void and will automatically terminate your rights under
00030   *    this license.
00031   *
00032   * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
00033   * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
00034   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
00035   * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
00036   * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
00037   * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00038   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00039   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
00040   * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00041   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00042   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
00043   * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00044   *
00045   ******************************************************************************
00046   */
00047 
00048 /* Includes ------------------------------------------------------------------*/
00049 #include "stm32l475e_iot01_tsensor.h"
00050 
00051 /** @addtogroup BSP
00052   * @{
00053   */ 
00054 
00055 /** @addtogroup STM32L475E_IOT01
00056   * @{
00057   */
00058 
00059 /** @defgroup STM32L475E_IOT01_TEMPERATURE TEMPERATURE
00060   * @{
00061   */
00062 
00063 /** @defgroup STM32L475E_IOT01_TEMPERATURE_Private_Variables TEMPERATURE Private Variables 
00064   * @{
00065   */ 
00066 static TSENSOR_DrvTypeDef *tsensor_drv;  
00067 /**
00068   * @}
00069   */
00070 
00071 /** @defgroup STM32L475E_IOT01_TEMPERATURE_Private_Functions TEMPERATURE Private Functions
00072   * @{
00073   */
00074 
00075 /**
00076   * @brief  Initializes peripherals used by the I2C Temperature Sensor driver.
00077   * @retval TSENSOR status
00078   */
00079 uint32_t BSP_TSENSOR_Init(void)
00080 {  
00081   uint8_t ret = TSENSOR_ERROR;
00082 
00083 #ifdef USE_LPS22HB_TEMP
00084   tsensor_drv = &LPS22HB_T_Drv;
00085 #else /* USE_HTS221_TEMP */
00086   tsensor_drv = &HTS221_T_Drv; 
00087 #endif
00088 
00089   /* Low level init */
00090   SENSOR_IO_Init();
00091 
00092   /* TSENSOR Init */   
00093   tsensor_drv->Init(TSENSOR_I2C_ADDRESS, NULL);
00094 
00095   ret = TSENSOR_OK;
00096   
00097   return ret;
00098 }
00099 
00100 /**
00101   * @brief  Read Temperature register of TS751.
00102   * @retval STTS751 measured temperature value.
00103   */
00104 float BSP_TSENSOR_ReadTemp(void)
00105 { 
00106   return tsensor_drv->ReadTemp(TSENSOR_I2C_ADDRESS);
00107 }
00108 
00109 /**
00110   * @}
00111   */
00112 
00113 /**
00114   * @}
00115   */
00116 
00117 /**
00118   * @}
00119   */
00120 
00121 /**
00122   * @}
00123   */
00124 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/