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@7:bfe8272ced90, 2019-09-24 (annotated)

Committer:
jeromecoutant
Date:
Tue Sep 24 15:30:09 2019 +0200
Revision:
7:bfe8272ced90
Parent:
6:9dfa42666f03 
Update BSP files with STM32Cube L4 V1.14.0

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 *
jeromecoutant 7:bfe8272ced90 9 * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
bcostm 3:c6b5944187d5 10 * All rights reserved.</center></h2>
bcostm 3:c6b5944187d5 11 *
jeromecoutant 7:bfe8272ced90 12 * This software component is licensed by ST under BSD 3-Clause license,
jeromecoutant 7:bfe8272ced90 13 * the "License"; You may not use this file except in compliance with the
jeromecoutant 7:bfe8272ced90 14 * License. You may obtain a copy of the License at:
jeromecoutant 7:bfe8272ced90 15 * opensource.org/licenses/BSD-3-Clause
bcostm 3:c6b5944187d5 16 *
bcostm 3:c6b5944187d5 17 ******************************************************************************
bcostm 3:c6b5944187d5 18 */
bcostm 3:c6b5944187d5 19
bcostm 3:c6b5944187d5 20 /* Includes ------------------------------------------------------------------*/
bcostm 3:c6b5944187d5 21 #include "stm32l475e_iot01_hsensor.h"
bcostm 3:c6b5944187d5 22
bcostm 3:c6b5944187d5 23 /** @addtogroup BSP
bcostm 3:c6b5944187d5 24 * @{
bcostm 3:c6b5944187d5 25 */
bcostm 3:c6b5944187d5 26
bcostm 3:c6b5944187d5 27 /** @addtogroup STM32L475E_IOT01
bcostm 3:c6b5944187d5 28 * @{
bcostm 3:c6b5944187d5 29 */
bcostm 3:c6b5944187d5 30
bcostm 3:c6b5944187d5 31 /** @defgroup STM32L475E_IOT01_HUMIDITY HUMIDITY
bcostm 3:c6b5944187d5 32 * @{
bcostm 3:c6b5944187d5 33 */
bcostm 3:c6b5944187d5 34
bcostm 3:c6b5944187d5 35 /** @defgroup STM32L475E_IOT01_HUMIDITY_Private_Variables HUMIDITY Private Variables
bcostm 3:c6b5944187d5 36 * @{
bcostm 3:c6b5944187d5 37 */
bcostm 3:c6b5944187d5 38 static HSENSOR_DrvTypeDef *Hsensor_drv;
bcostm 3:c6b5944187d5 39 /**
bcostm 3:c6b5944187d5 40 * @}
bcostm 3:c6b5944187d5 41 */
bcostm 3:c6b5944187d5 42
bcostm 3:c6b5944187d5 43 /** @defgroup STM32L475E_IOT01_HUMIDITY_Private_Functions HUMIDITY Private Functions
bcostm 3:c6b5944187d5 44 * @{
bcostm 3:c6b5944187d5 45 */
bcostm 3:c6b5944187d5 46
bcostm 3:c6b5944187d5 47 /**
bcostm 3:c6b5944187d5 48 * @brief Initializes peripherals used by the I2C Humidity Sensor driver.
bcostm 3:c6b5944187d5 49 * @retval HSENSOR status
bcostm 3:c6b5944187d5 50 */
bcostm 3:c6b5944187d5 51 uint32_t BSP_HSENSOR_Init(void)
bcostm 3:c6b5944187d5 52 {
bcostm 3:c6b5944187d5 53 uint32_t ret;
bcostm 3:c6b5944187d5 54
bcostm 3:c6b5944187d5 55 if(HTS221_H_Drv.ReadID(HTS221_I2C_ADDRESS) != HTS221_WHO_AM_I_VAL)
bcostm 3:c6b5944187d5 56 {
bcostm 3:c6b5944187d5 57 ret = HSENSOR_ERROR;
bcostm 3:c6b5944187d5 58 }
bcostm 3:c6b5944187d5 59 else
bcostm 3:c6b5944187d5 60 {
bcostm 3:c6b5944187d5 61 Hsensor_drv = &HTS221_H_Drv;
bcostm 3:c6b5944187d5 62 /* HSENSOR Init */
bcostm 3:c6b5944187d5 63 Hsensor_drv->Init(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 64 ret = HSENSOR_OK;
bcostm 3:c6b5944187d5 65 }
bcostm 3:c6b5944187d5 66
bcostm 3:c6b5944187d5 67 return ret;
bcostm 3:c6b5944187d5 68 }
bcostm 3:c6b5944187d5 69
bcostm 3:c6b5944187d5 70 /**
bcostm 3:c6b5944187d5 71 * @brief Read ID of HTS221.
bcostm 3:c6b5944187d5 72 * @retval HTS221 ID value.
bcostm 3:c6b5944187d5 73 */
bcostm 3:c6b5944187d5 74 uint8_t BSP_HSENSOR_ReadID(void)
bcostm 3:c6b5944187d5 75 {
bcostm 3:c6b5944187d5 76 return Hsensor_drv->ReadID(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 77 }
bcostm 3:c6b5944187d5 78
bcostm 3:c6b5944187d5 79 /**
bcostm 3:c6b5944187d5 80 * @brief Read Humidity register of HTS221.
bcostm 3:c6b5944187d5 81 * @retval HTS221 measured humidity value.
bcostm 3:c6b5944187d5 82 */
bcostm 3:c6b5944187d5 83 float BSP_HSENSOR_ReadHumidity(void)
bcostm 3:c6b5944187d5 84 {
bcostm 3:c6b5944187d5 85 return Hsensor_drv->ReadHumidity(HTS221_I2C_ADDRESS);
bcostm 3:c6b5944187d5 86 }
bcostm 3:c6b5944187d5 87 /**
bcostm 3:c6b5944187d5 88 * @}
bcostm 3:c6b5944187d5 89 */
bcostm 3:c6b5944187d5 90
bcostm 3:c6b5944187d5 91 /**
bcostm 3:c6b5944187d5 92 * @}
bcostm 3:c6b5944187d5 93 */
bcostm 3:c6b5944187d5 94
bcostm 3:c6b5944187d5 95 /**
bcostm 3:c6b5944187d5 96 * @}
bcostm 3:c6b5944187d5 97 */
bcostm 3:c6b5944187d5 98
bcostm 3:c6b5944187d5 99 /**
bcostm 3:c6b5944187d5 100 * @}
bcostm 3:c6b5944187d5 101 */
bcostm 3:c6b5944187d5 102 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/