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

https://os.mbed.com/platforms/ST-Discovery-L475E-IOT01A/

Drivers/BSP/B-L475E-IOT01/stm32l475e_iot01_hsensor.c@6:9dfa42666f03, 2018-01-19 (annotated)

Committer:
bcostm
Date:
Fri Jan 19 14:27:51 2018 +0100
Revision:
6:9dfa42666f03
Parent:
5:0c70bc6d2dc0
Child:
7:bfe8272ced90
Update BSP files with STM32Cube L4 V1.11.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bcostm 3:c6b5944187d5 1 /**
bcostm 3:c6b5944187d5 2 ******************************************************************************
bcostm 3:c6b5944187d5 3 * @file stm32l475e_iot01_hsensor.c
bcostm 3:c6b5944187d5 4 * @author MCD Application Team
bcostm 3:c6b5944187d5 5 * @brief This file provides a set of functions needed to manage the humidity sensor
bcostm 3:c6b5944187d5 6 ******************************************************************************
bcostm 3:c6b5944187d5 7 * @attention
bcostm 3:c6b5944187d5 8 *
bcostm 3:c6b5944187d5 9 * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics International N.V.
bcostm 3:c6b5944187d5 10 * All rights reserved.</center></h2>
bcostm 3:c6b5944187d5 11 *
bcostm 3:c6b5944187d5 12 * Redistribution and use in source and binary forms, with or without
bcostm 3:c6b5944187d5 13 * modification, are permitted, provided that the following conditions are met:
bcostm 3:c6b5944187d5 14 *
bcostm 3:c6b5944187d5 15 * 1. Redistribution of source code must retain the above copyright notice,
bcostm 3:c6b5944187d5 16 * this list of conditions and the following disclaimer.
bcostm 3:c6b5944187d5 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
bcostm 3:c6b5944187d5 18 * this list of conditions and the following disclaimer in the documentation
bcostm 3:c6b5944187d5 19 * and/or other materials provided with the distribution.
bcostm 3:c6b5944187d5 20 * 3. Neither the name of STMicroelectronics nor the names of other
bcostm 3:c6b5944187d5 21 * contributors to this software may be used to endorse or promote products
bcostm 3:c6b5944187d5 22 * derived from this software without specific written permission.
bcostm 3:c6b5944187d5 23 * 4. This software, including modifications and/or derivative works of this
bcostm 3:c6b5944187d5 24 * software, must execute solely and exclusively on microcontroller or
bcostm 3:c6b5944187d5 25 * microprocessor devices manufactured by or for STMicroelectronics.
bcostm 3:c6b5944187d5 26 * 5. Redistribution and use of this software other than as permitted under
bcostm 3:c6b5944187d5 27 * this license is void and will automatically terminate your rights under
bcostm 3:c6b5944187d5 28 * this license.
bcostm 3:c6b5944187d5 29 *
bcostm 3:c6b5944187d5 30 * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
bcostm 3:c6b5944187d5 31 * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
bcostm 3:c6b5944187d5 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
bcostm 3:c6b5944187d5 33 * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
bcostm 3:c6b5944187d5 34 * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
bcostm 3:c6b5944187d5 35 * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
bcostm 3:c6b5944187d5 36 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
bcostm 3:c6b5944187d5 37 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
bcostm 3:c6b5944187d5 38 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
bcostm 3:c6b5944187d5 39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
bcostm 3:c6b5944187d5 40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
bcostm 3:c6b5944187d5 41 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bcostm 3:c6b5944187d5 42 *
bcostm 3:c6b5944187d5 43 ******************************************************************************
bcostm 3:c6b5944187d5 44 */
bcostm 3:c6b5944187d5 45
bcostm 3:c6b5944187d5 46 /* Includes ------------------------------------------------------------------*/
bcostm 3:c6b5944187d5 47 #include "stm32l475e_iot01_hsensor.h"
bcostm 3:c6b5944187d5 48
bcostm 3:c6b5944187d5 49 /** @addtogroup BSP
bcostm 3:c6b5944187d5 50 * @{
bcostm 3:c6b5944187d5 51 */
bcostm 3:c6b5944187d5 52
bcostm 3:c6b5944187d5 53 /** @addtogroup STM32L475E_IOT01
bcostm 3:c6b5944187d5 54 * @{
bcostm 3:c6b5944187d5 55 */
bcostm 3:c6b5944187d5 56
bcostm 3:c6b5944187d5 57 /** @defgroup STM32L475E_IOT01_HUMIDITY HUMIDITY
bcostm 3:c6b5944187d5 58 * @{
bcostm 3:c6b5944187d5 59 */
bcostm 3:c6b5944187d5 60
bcostm 3:c6b5944187d5 61 /** @defgroup STM32L475E_IOT01_HUMIDITY_Private_Variables HUMIDITY Private Variables
bcostm 3:c6b5944187d5 62 * @{
bcostm 3:c6b5944187d5 63 */
bcostm 3:c6b5944187d5 64 static HSENSOR_DrvTypeDef *Hsensor_drv;
bcostm 3:c6b5944187d5 65 /**
bcostm 3:c6b5944187d5 66 * @}
bcostm 3:c6b5944187d5 67 */
bcostm 3:c6b5944187d5 68
bcostm 3:c6b5944187d5 69 /** @defgroup STM32L475E_IOT01_HUMIDITY_Private_Functions HUMIDITY Private Functions
bcostm 3:c6b5944187d5 70 * @{
bcostm 3:c6b5944187d5 71 */
bcostm 3:c6b5944187d5 72
bcostm 3:c6b5944187d5 73 /**
bcostm 3:c6b5944187d5 74 * @brief Initializes peripherals used by the I2C Humidity Sensor driver.
bcostm 3:c6b5944187d5 75 * @retval HSENSOR status
bcostm 3:c6b5944187d5 76 */
bcostm 3:c6b5944187d5 77 uint32_t BSP_HSENSOR_Init(void)
bcostm 3:c6b5944187d5 78 {
bcostm 3:c6b5944187d5 79 uint32_t ret;
bcostm 3:c6b5944187d5 80
bcostm 3:c6b5944187d5 81 if(HTS221_H_Drv.ReadID(HTS221_I2C_ADDRESS) != HTS221_WHO_AM_I_VAL)
bcostm 3:c6b5944187d5 82 {
bcostm 3:c6b5944187d5 83 ret = HSENSOR_ERROR;
bcostm 3:c6b5944187d5 84 }
bcostm 3:c6b5944187d5 85 else
bcostm 3:c6b5944187d5 86 {
bcostm 3:c6b5944187d5 87 Hsensor_drv = &HTS221_H_Drv;
bcostm 3:c6b5944187d5 88 /* HSENSOR Init */
bcostm 3:c6b5944187d5 89 Hsensor_drv->Init(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 90 ret = HSENSOR_OK;
bcostm 3:c6b5944187d5 91 }
bcostm 3:c6b5944187d5 92
bcostm 3:c6b5944187d5 93 return ret;
bcostm 3:c6b5944187d5 94 }
bcostm 3:c6b5944187d5 95
bcostm 3:c6b5944187d5 96 /**
bcostm 3:c6b5944187d5 97 * @brief Read ID of HTS221.
bcostm 3:c6b5944187d5 98 * @retval HTS221 ID value.
bcostm 3:c6b5944187d5 99 */
bcostm 3:c6b5944187d5 100 uint8_t BSP_HSENSOR_ReadID(void)
bcostm 3:c6b5944187d5 101 {
bcostm 3:c6b5944187d5 102 return Hsensor_drv->ReadID(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 103 }
bcostm 3:c6b5944187d5 104
bcostm 3:c6b5944187d5 105 /**
bcostm 3:c6b5944187d5 106 * @brief Read Humidity register of HTS221.
bcostm 3:c6b5944187d5 107 * @retval HTS221 measured humidity value.
bcostm 3:c6b5944187d5 108 */
bcostm 3:c6b5944187d5 109 float BSP_HSENSOR_ReadHumidity(void)
bcostm 3:c6b5944187d5 110 {
bcostm 3:c6b5944187d5 111 return Hsensor_drv->ReadHumidity(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 112 }
bcostm 3:c6b5944187d5 113 /**
bcostm 3:c6b5944187d5 114 * @}
bcostm 3:c6b5944187d5 115 */
bcostm 3:c6b5944187d5 116
bcostm 3:c6b5944187d5 117 /**
bcostm 3:c6b5944187d5 118 * @}
bcostm 3:c6b5944187d5 119 */
bcostm 3:c6b5944187d5 120
bcostm 3:c6b5944187d5 121 /**
bcostm 3:c6b5944187d5 122 * @}
bcostm 3:c6b5944187d5 123 */
bcostm 3:c6b5944187d5 124
bcostm 3:c6b5944187d5 125 /**
bcostm 3:c6b5944187d5 126 * @}
bcostm 3:c6b5944187d5 127 */
bcostm 3:c6b5944187d5 128 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/