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/
Diff: Drivers/BSP/B-L475E-IOT01/stm32l475e_iot01.c
- Revision:
- 4:137bb367ba50
- Child:
- 5:0c70bc6d2dc0
diff -r c6b5944187d5 -r 137bb367ba50 Drivers/BSP/B-L475E-IOT01/stm32l475e_iot01.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Drivers/BSP/B-L475E-IOT01/stm32l475e_iot01.c Fri Apr 14 13:09:54 2017 +0200 @@ -0,0 +1,659 @@ +/** + ****************************************************************************** + * @file stm32l475e_iot01.c + * @author MCD Application Team + * @version V1.0.0 + * @date 17-March-2017 + * @brief STM32L475E-IOT01 board support package + ****************************************************************************** + * @attention + * + * <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V. + * All rights reserved.</center></h2> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted, provided that the following conditions are met: + * + * 1. Redistribution 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 other + * contributors to this software may be used to endorse or promote products + * derived from this software without specific written permission. + * 4. This software, including modifications and/or derivative works of this + * software, must execute solely and exclusively on microcontroller or + * microprocessor devices manufactured by or for STMicroelectronics. + * 5. Redistribution and use of this software other than as permitted under + * this license is void and will automatically terminate your rights under + * this license. + * + * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY + * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT + * SHALL STMICROELECTRONICS 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. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32l475e_iot01.h" +/** @defgroup BSP BSP + * @{ + */ + +/** @defgroup STM32L475E_IOT01 STM32L475E_IOT01 + * @{ + */ + +/** @defgroup STM32L475E_IOT01_LOW_LEVEL LOW LEVEL + * @{ + */ + +/** @defgroup STM32L475E_IOT01_LOW_LEVEL_Private_Defines LOW LEVEL Private Def + * @{ + */ +/** + * @brief STM32L475E IOT01 BSP Driver version number V1.0.0 + */ +#define __STM32L475E_IOT01_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */ +#define __STM32L475E_IOT01_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */ +#define __STM32L475E_IOT01_BSP_VERSION_SUB2 (0x00) /*!< [15:8] sub2 version */ +#define __STM32L475E_IOT01_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */ +#define __STM32L475E_IOT01_BSP_VERSION ((__STM32L475E_IOT01_BSP_VERSION_MAIN << 24)\ + |(__STM32L475E_IOT01_BSP_VERSION_SUB1 << 16)\ + |(__STM32L475E_IOT01_BSP_VERSION_SUB2 << 8 )\ + |(__STM32L475E_IOT01_BSP_VERSION_RC)) +/** + * @} + */ + +/** @defgroup STM32L475E_IOT01_LOW_LEVEL_Private_Variables LOW LEVEL Variables + * @{ + */ + +const uint32_t GPIO_PIN[LEDn] = {LED2_PIN}; + + +GPIO_TypeDef* GPIO_PORT[LEDn] = {LED2_GPIO_PORT}; + + +GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {USER_BUTTON_GPIO_PORT}; + +const uint16_t BUTTON_PIN[BUTTONn] = {USER_BUTTON_PIN}; + +const uint16_t BUTTON_IRQn[BUTTONn] = {USER_BUTTON_EXTI_IRQn}; + +USART_TypeDef* COM_USART[COMn] = {DISCOVERY_COM1}; + +GPIO_TypeDef* COM_TX_PORT[COMn] = {DISCOVERY_COM1_TX_GPIO_PORT}; + +GPIO_TypeDef* COM_RX_PORT[COMn] = {DISCOVERY_COM1_RX_GPIO_PORT}; + +const uint16_t COM_TX_PIN[COMn] = {DISCOVERY_COM1_TX_PIN}; + +const uint16_t COM_RX_PIN[COMn] = {DISCOVERY_COM1_RX_PIN}; + +const uint16_t COM_TX_AF[COMn] = {DISCOVERY_COM1_TX_AF}; + +const uint16_t COM_RX_AF[COMn] = {DISCOVERY_COM1_RX_AF}; + +I2C_HandleTypeDef hI2cHandler; +UART_HandleTypeDef hDiscoUart; +/** + * @} + */ +/** @defgroup STM32L475E_IOT01_LOW_LEVEL_Private_FunctionPrototypes LOW LEVEL Private Function Prototypes + * @{ + */ +static void I2Cx_MspInit(I2C_HandleTypeDef *i2c_handler); +static void I2Cx_MspDeInit(I2C_HandleTypeDef *i2c_handler); +static void I2Cx_Init(I2C_HandleTypeDef *i2c_handler); +static void I2Cx_DeInit(I2C_HandleTypeDef *i2c_handler); +static HAL_StatusTypeDef I2Cx_ReadMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length); +static HAL_StatusTypeDef I2Cx_WriteMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length); +static HAL_StatusTypeDef I2Cx_IsDeviceReady(I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials); +static void I2Cx_Error(I2C_HandleTypeDef *i2c_handler, uint8_t Addr); + +/* Sensors IO functions */ +void SENSOR_IO_Init(void); +void SENSOR_IO_DeInit(void); +void SENSOR_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value); +uint8_t SENSOR_IO_Read(uint8_t Addr, uint8_t Reg); +uint16_t SENSOR_IO_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length); +void SENSOR_IO_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length); +HAL_StatusTypeDef SENSOR_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials); +void SENSOR_IO_Delay(uint32_t Delay); + +/** + * @} + */ + +/** @defgroup STM32L475E_IOT01_LOW_LEVEL_Private_Functions LOW LEVEL Private Functions + * @{ + */ + +/** + * @brief This method returns the STM32L475E IOT01 BSP Driver revision + * @retval version: 0xXYZR (8bits for each decimal, R for RC) + */ +uint32_t BSP_GetVersion(void) +{ + return __STM32L475E_IOT01_BSP_VERSION; +} + +/** + * @brief Configures LEDs. + * @param Led: LED to be configured. + * This parameter can be one of the following values: + * @arg LED2 + */ +void BSP_LED_Init(Led_TypeDef Led) +{ + GPIO_InitTypeDef gpio_init_structure; + + LEDx_GPIO_CLK_ENABLE(Led); + /* Configure the GPIO_LED pin */ + gpio_init_structure.Pin = GPIO_PIN[Led]; + gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP; + gpio_init_structure.Pull = GPIO_NOPULL; + gpio_init_structure.Speed = GPIO_SPEED_FREQ_HIGH; + + HAL_GPIO_Init(GPIO_PORT[Led], &gpio_init_structure); +} + +/** + * @brief DeInit LEDs. + * @param Led: LED to be configured. + * This parameter can be one of the following values: + * @arg LED2 + */ +void BSP_LED_DeInit(Led_TypeDef Led) +{ + GPIO_InitTypeDef gpio_init_structure; + + /* DeInit the GPIO_LED pin */ + gpio_init_structure.Pin = GPIO_PIN[Led]; + + /* Turn off LED */ + HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET); + HAL_GPIO_DeInit(GPIO_PORT[Led], gpio_init_structure.Pin); +} + +/** + * @brief Turns selected LED On. + * @param Led: LED to be set on + * This parameter can be one of the following values: + * @arg LED2 + */ +void BSP_LED_On(Led_TypeDef Led) +{ + HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET); +} + +/** + * @brief Turns selected LED Off. + * @param Led: LED to be set off + * This parameter can be one of the following values: + * @arg LED2 + */ +void BSP_LED_Off(Led_TypeDef Led) +{ + HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET); +} + +/** + * @brief Toggles the selected LED. + * @param Led: LED to be toggled + * This parameter can be one of the following values: + * @arg LED2 + */ +void BSP_LED_Toggle(Led_TypeDef Led) +{ + HAL_GPIO_TogglePin(GPIO_PORT[Led], GPIO_PIN[Led]); +} + +/** + * @brief Configures button GPIO and EXTI Line. + * @param Button: Button to be configured + * This parameter can be one of the following values: + * @arg BUTTON_WAKEUP: Wakeup Push Button + * @param ButtonMode: Button mode + * This parameter can be one of the following values: + * @arg BUTTON_MODE_GPIO: Button will be used as simple IO + * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line + * with interrupt generation capability + */ +void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode) +{ + GPIO_InitTypeDef gpio_init_structure; + + /* Enable the BUTTON clock */ + USER_BUTTON_GPIO_CLK_ENABLE(); + + if(ButtonMode == BUTTON_MODE_GPIO) + { + /* Configure Button pin as input */ + gpio_init_structure.Pin = BUTTON_PIN[Button]; + gpio_init_structure.Mode = GPIO_MODE_INPUT; + gpio_init_structure.Pull = GPIO_PULLUP; + gpio_init_structure.Speed = GPIO_SPEED_FREQ_HIGH; + HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure); + } + + if(ButtonMode == BUTTON_MODE_EXTI) + { + /* Configure Button pin as input with External interrupt */ + gpio_init_structure.Pin = BUTTON_PIN[Button]; + gpio_init_structure.Pull = GPIO_PULLUP; + gpio_init_structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; + + gpio_init_structure.Mode = GPIO_MODE_IT_RISING; + + HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure); + + /* Enable and set Button EXTI Interrupt to the lowest priority */ + HAL_NVIC_SetPriority((IRQn_Type)(BUTTON_IRQn[Button]), 0x0F, 0x00); + HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button])); + } +} + +/** + * @brief Push Button DeInit. + * @param Button: Button to be configured + * This parameter can be one of the following values: + * @arg BUTTON_WAKEUP: Wakeup Push Button + * @note PB DeInit does not disable the GPIO clock + */ +void BSP_PB_DeInit(Button_TypeDef Button) +{ + GPIO_InitTypeDef gpio_init_structure; + + gpio_init_structure.Pin = BUTTON_PIN[Button]; + HAL_NVIC_DisableIRQ((IRQn_Type)(BUTTON_IRQn[Button])); + HAL_GPIO_DeInit(BUTTON_PORT[Button], gpio_init_structure.Pin); +} + + +/** + * @brief Returns the selected button state. + * @param Button: Button to be checked + * This parameter can be one of the following values: + * @arg BUTTON_WAKEUP: Wakeup Push Button + * @retval The Button GPIO pin value (GPIO_PIN_RESET = button pressed) + */ +uint32_t BSP_PB_GetState(Button_TypeDef Button) +{ + return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]); +} + +/** + * @brief Configures COM port. + * @param COM: COM port to be configured. + * This parameter can be one of the following values: + * @arg COM1 + * @param huart: Pointer to a UART_HandleTypeDef structure that contains the + * configuration information for the specified USART peripheral. + */ +void BSP_COM_Init(COM_TypeDef COM, UART_HandleTypeDef *huart) +{ + GPIO_InitTypeDef gpio_init_structure; + + /* Enable GPIO clock */ + DISCOVERY_COMx_TX_GPIO_CLK_ENABLE(COM); + DISCOVERY_COMx_RX_GPIO_CLK_ENABLE(COM); + + /* Enable USART clock */ + DISCOVERY_COMx_CLK_ENABLE(COM); + + /* Configure USART Tx as alternate function */ + gpio_init_structure.Pin = COM_TX_PIN[COM]; + gpio_init_structure.Mode = GPIO_MODE_AF_PP; + gpio_init_structure.Speed = GPIO_SPEED_FREQ_HIGH; + gpio_init_structure.Pull = GPIO_NOPULL; + gpio_init_structure.Alternate = COM_TX_AF[COM]; + HAL_GPIO_Init(COM_TX_PORT[COM], &gpio_init_structure); + + /* Configure USART Rx as alternate function */ + gpio_init_structure.Pin = COM_RX_PIN[COM]; + gpio_init_structure.Mode = GPIO_MODE_AF_PP; + gpio_init_structure.Alternate = COM_RX_AF[COM]; + HAL_GPIO_Init(COM_RX_PORT[COM], &gpio_init_structure); + + /* USART configuration */ + huart->Instance = COM_USART[COM]; + HAL_UART_Init(huart); +} + +/** + * @brief DeInit COM port. + * @param COM: COM port to be configured. + * This parameter can be one of the following values: + * @arg COM1 + * @param huart: Pointer to a UART_HandleTypeDef structure that contains the + * configuration information for the specified USART peripheral. + */ +void BSP_COM_DeInit(COM_TypeDef COM, UART_HandleTypeDef *huart) +{ + /* USART configuration */ + huart->Instance = COM_USART[COM]; + HAL_UART_DeInit(huart); + + /* Enable USART clock */ + DISCOVERY_COMx_CLK_DISABLE(COM); + + /* DeInit GPIO pins can be done in the application + (by surcharging this __weak function) */ + + /* GPIO pins clock, FMC clock and DMA clock can be shut down in the application + by surcharging this __weak function */ +} + + +/******************************************************************************* + BUS OPERATIONS +*******************************************************************************/ + +/******************************* I2C Routines *********************************/ +/** + * @brief Initializes I2C MSP. + * @param i2c_handler : I2C handler + * @retval None + */ +static void I2Cx_MspInit(I2C_HandleTypeDef *i2c_handler) +{ + GPIO_InitTypeDef gpio_init_structure; + + /*** Configure the GPIOs ***/ + /* Enable GPIO clock */ + DISCOVERY_I2Cx_SCL_SDA_GPIO_CLK_ENABLE(); + + /* Configure I2C Tx, Rx as alternate function */ + gpio_init_structure.Pin = DISCOVERY_I2Cx_SCL_PIN | DISCOVERY_I2Cx_SDA_PIN; + gpio_init_structure.Mode = GPIO_MODE_AF_OD; + gpio_init_structure.Pull = GPIO_PULLUP; + gpio_init_structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH; + gpio_init_structure.Alternate = DISCOVERY_I2Cx_SCL_SDA_AF; + HAL_GPIO_Init(DISCOVERY_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure); + + HAL_GPIO_Init(DISCOVERY_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure); + + /*** Configure the I2C peripheral ***/ + /* Enable I2C clock */ + DISCOVERY_I2Cx_CLK_ENABLE(); + + /* Force the I2C peripheral clock reset */ + DISCOVERY_I2Cx_FORCE_RESET(); + + /* Release the I2C peripheral clock reset */ + DISCOVERY_I2Cx_RELEASE_RESET(); + + /* Enable and set I2Cx Interrupt to a lower priority */ + HAL_NVIC_SetPriority(DISCOVERY_I2Cx_EV_IRQn, 0x0F, 0); + HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_EV_IRQn); + + /* Enable and set I2Cx Interrupt to a lower priority */ + HAL_NVIC_SetPriority(DISCOVERY_I2Cx_ER_IRQn, 0x0F, 0); + HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_ER_IRQn); +} + +/** + * @brief DeInitializes I2C MSP. + * @param i2c_handler : I2C handler + * @retval None + */ +static void I2Cx_MspDeInit(I2C_HandleTypeDef *i2c_handler) +{ + GPIO_InitTypeDef gpio_init_structure; + + /* Configure I2C Tx, Rx as alternate function */ + gpio_init_structure.Pin = DISCOVERY_I2Cx_SCL_PIN | DISCOVERY_I2Cx_SDA_PIN; + HAL_GPIO_DeInit(DISCOVERY_I2Cx_SCL_SDA_GPIO_PORT, gpio_init_structure.Pin); + /* Disable GPIO clock */ + DISCOVERY_I2Cx_SCL_SDA_GPIO_CLK_DISABLE(); + + /* Disable I2C clock */ + DISCOVERY_I2Cx_CLK_DISABLE(); +} + +/** + * @brief Initializes I2C HAL. + * @param i2c_handler : I2C handler + * @retval None + */ +static void I2Cx_Init(I2C_HandleTypeDef *i2c_handler) +{ + /* I2C configuration */ + i2c_handler->Instance = DISCOVERY_I2Cx; + i2c_handler->Init.Timing = DISCOVERY_I2Cx_TIMING; + i2c_handler->Init.OwnAddress1 = 0; + i2c_handler->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; + i2c_handler->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; + i2c_handler->Init.OwnAddress2 = 0; + i2c_handler->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; + i2c_handler->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; + + /* Init the I2C */ + I2Cx_MspInit(i2c_handler); + HAL_I2C_Init(i2c_handler); + + /**Configure Analogue filter */ + HAL_I2CEx_ConfigAnalogFilter(i2c_handler, I2C_ANALOGFILTER_ENABLE); +} + +/** + * @brief DeInitializes I2C HAL. + * @param i2c_handler : I2C handler + * @retval None + */ +static void I2Cx_DeInit(I2C_HandleTypeDef *i2c_handler) +{ /* DeInit the I2C */ + I2Cx_MspDeInit(i2c_handler); + HAL_I2C_DeInit(i2c_handler); +} + +/** + * @brief Reads multiple data. + * @param i2c_handler : I2C handler + * @param Addr: I2C address + * @param Reg: Reg address + * @param MemAddress: memory address + * @param Buffer: Pointer to data buffer + * @param Length: Length of the data + * @retval HAL status + */ +static HAL_StatusTypeDef I2Cx_ReadMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length) +{ + HAL_StatusTypeDef status = HAL_OK; + + status = HAL_I2C_Mem_Read(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000); + + /* Check the communication status */ + if(status != HAL_OK) + { + /* I2C error occured */ + I2Cx_Error(i2c_handler, Addr); + } + return status; +} + + +/** + * @brief Writes a value in a register of the device through BUS in using DMA mode. + * @param i2c_handler : I2C handler + * @param Addr: Device address on BUS Bus. + * @param Reg: The target register address to write + * @param MemAddress: memory address + * @param Buffer: The target register value to be written + * @param Length: buffer size to be written + * @retval HAL status + */ +static HAL_StatusTypeDef I2Cx_WriteMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length) +{ + HAL_StatusTypeDef status = HAL_OK; + + status = HAL_I2C_Mem_Write(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000); + + /* Check the communication status */ + if(status != HAL_OK) + { + /* Re-Initiaize the I2C Bus */ + I2Cx_Error(i2c_handler, Addr); + } + return status; +} + +/** + * @brief Checks if target device is ready for communication. + * @note This function is used with Memory devices + * @param i2c_handler : I2C handler + * @param DevAddress: Target device address + * @param Trials: Number of trials + * @retval HAL status + */ +static HAL_StatusTypeDef I2Cx_IsDeviceReady(I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials) +{ + return (HAL_I2C_IsDeviceReady(i2c_handler, DevAddress, Trials, 1000)); +} + +/** + * @brief Manages error callback by re-initializing I2C. + * @param i2c_handler : I2C handler + * @param Addr: I2C Address + * @retval None + */ +static void I2Cx_Error(I2C_HandleTypeDef *i2c_handler, uint8_t Addr) +{ + /* De-initialize the I2C communication bus */ + HAL_I2C_DeInit(i2c_handler); + + /* Re-Initialize the I2C communication bus */ + I2Cx_Init(i2c_handler); +} + +/** + * @} + */ + +/******************************************************************************* + LINK OPERATIONS +*******************************************************************************/ +/******************************** LINK Sensors ********************************/ + +/** + * @brief Initializes Sensors low level. + * @retval None + */ +void SENSOR_IO_Init(void) +{ + I2Cx_Init(&hI2cHandler); +} + +/** + * @brief DeInitializes Sensors low level. + * @retval None + */ +void SENSOR_IO_DeInit(void) +{ + I2Cx_DeInit(&hI2cHandler); +} + +/** + * @brief Writes a single data. + * @param Addr: I2C address + * @param Reg: Reg address + * @param Value: Data to be written + * @retval None + */ +void SENSOR_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value) +{ + I2Cx_WriteMultiple(&hI2cHandler, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT,(uint8_t*)&Value, 1); +} + +/** + * @brief Reads a single data. + * @param Addr: I2C address + * @param Reg: Reg address + * @retval Data to be read + */ +uint8_t SENSOR_IO_Read(uint8_t Addr, uint8_t Reg) +{ + uint8_t read_value = 0; + + I2Cx_ReadMultiple(&hI2cHandler, Addr, Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&read_value, 1); + + return read_value; +} + +/** + * @brief Reads multiple data with I2C communication + * channel from TouchScreen. + * @param Addr: I2C address + * @param Reg: Register address + * @param Buffer: Pointer to data buffer + * @param Length: Length of the data + * @retval HAL status + */ +uint16_t SENSOR_IO_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length) +{ + return I2Cx_ReadMultiple(&hI2cHandler, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length); +} + +/** + * @brief Writes multiple data with I2C communication + * channel from MCU to TouchScreen. + * @param Addr: I2C address + * @param Reg: Register address + * @param Buffer: Pointer to data buffer + * @param Length: Length of the data + * @retval None + */ +void SENSOR_IO_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length) +{ + I2Cx_WriteMultiple(&hI2cHandler, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length); +} + +/** + * @brief Checks if target device is ready for communication. + * @note This function is used with Memory devices + * @param DevAddress: Target device address + * @param Trials: Number of trials + * @retval HAL status + */ +HAL_StatusTypeDef SENSOR_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials) +{ + return (I2Cx_IsDeviceReady(&hI2cHandler, DevAddress, Trials)); +} + +/** + * @brief Delay function used in TouchScreen low level driver. + * @param Delay: Delay in ms + * @retval None + */ +void SENSOR_IO_Delay(uint32_t Delay) +{ + HAL_Delay(Delay); +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/