Pierre Bizouard
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Dependents: DISCO-F429ZI_LCDTS_demo_richard
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BSP_DISCO_F429ZI
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ST
Diff: Drivers/BSP/STM32F429I-Discovery/stm32f429i_discovery.c
- Revision:
- 1:2371382139dd
- Child:
- 2:53d9067a4feb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Drivers/BSP/STM32F429I-Discovery/stm32f429i_discovery.c Tue May 16 10:50:25 2017 +0200
@@ -0,0 +1,1172 @@
+/**
+ ******************************************************************************
+ * @file stm32f429i_discovery.c
+ * @author MCD Application Team
+ * @version V2.1.5
+ * @date 27-January-2017
+ * @brief This file provides set of firmware functions to manage Leds and
+ * push-button available on STM32F429I-Discovery Kit from STMicroelectronics.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions 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 its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 "stm32f429i_discovery.h"
+#include "cmsis_nvic.h" // // Added for mbed
+
+// Added for mbed. This function replaces HAL_Delay()
+void wait_ms(int ms);
+
+/** @defgroup BSP BSP
+ * @{
+ */
+
+/** @defgroup STM32F429I_DISCOVERY STM32F429I DISCOVERY
+ * @{
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL STM32F429I DISCOVERY LOW LEVEL
+ * @brief This file provides set of firmware functions to manage Leds and push-button
+ * available on STM32F429I-Discovery Kit from STMicroelectronics.
+ * @{
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_TypesDefinitions STM32F429I DISCOVERY LOW LEVEL Private TypesDefinitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_Defines STM32F429I DISCOVERY LOW LEVEL Private Defines
+ * @{
+ */
+
+ /**
+ * @brief STM32F429I DISCO BSP Driver version number V2.1.5
+ */
+#define __STM32F429I_DISCO_BSP_VERSION_MAIN (0x02) /*!< [31:24] main version */
+#define __STM32F429I_DISCO_BSP_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */
+#define __STM32F429I_DISCO_BSP_VERSION_SUB2 (0x05) /*!< [15:8] sub2 version */
+#define __STM32F429I_DISCO_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
+#define __STM32F429I_DISCO_BSP_VERSION ((__STM32F429I_DISCO_BSP_VERSION_MAIN << 24)\
+ |(__STM32F429I_DISCO_BSP_VERSION_SUB1 << 16)\
+ |(__STM32F429I_DISCO_BSP_VERSION_SUB2 << 8 )\
+ |(__STM32F429I_DISCO_BSP_VERSION_RC))
+/**
+ * @}
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_Macros STM32F429I DISCOVERY LOW LEVEL Private Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_Variables STM32F429I DISCOVERY LOW LEVEL Private Variables
+ * @{
+ */
+GPIO_TypeDef* GPIO_PORT[LEDn] = {LED3_GPIO_PORT,
+ LED4_GPIO_PORT};
+
+const uint16_t GPIO_PIN[LEDn] = {LED3_PIN,
+ LED4_PIN};
+
+GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {KEY_BUTTON_GPIO_PORT};
+const uint16_t BUTTON_PIN[BUTTONn] = {KEY_BUTTON_PIN};
+const uint8_t BUTTON_IRQn[BUTTONn] = {KEY_BUTTON_EXTI_IRQn};
+
+uint32_t I2cxTimeout = I2Cx_TIMEOUT_MAX; /*<! Value of Timeout when I2C communication fails */
+uint32_t SpixTimeout = SPIx_TIMEOUT_MAX; /*<! Value of Timeout when SPI communication fails */
+
+I2C_HandleTypeDef EEP_I2cHandle;
+static SPI_HandleTypeDef SpiHandle;
+static uint8_t Is_LCD_IO_Initialized = 0;
+
+/**
+ * @}
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_FunctionPrototypes STM32F429I DISCOVERY LOW LEVEL Private FunctionPrototypes
+ * @{
+ */
+/* I2Cx bus function */
+static void I2Cx_Init(void);
+static void I2Cx_ITConfig(void);
+static void I2Cx_WriteData(uint8_t Addr, uint8_t Reg, uint8_t Value);
+static void I2Cx_WriteBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length);
+static uint8_t I2Cx_ReadData(uint8_t Addr, uint8_t Reg);
+static uint8_t I2Cx_ReadBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length);
+static void I2Cx_Error(void);
+static void I2Cx_MspInit(I2C_HandleTypeDef *hi2c);
+#ifdef EE_M24LR64
+static HAL_StatusTypeDef I2Cx_WriteBufferDMA(uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length);
+static HAL_StatusTypeDef I2Cx_ReadBufferDMA(uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length);
+static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
+static void EEPROM_I2C_DMA_TX_IRQHandler(void);
+static void EEPROM_I2C_DMA_RX_IRQHandler(void);
+#endif /* EE_M24LR64 */
+
+/* SPIx bus function */
+static void SPIx_Init(void);
+static void SPIx_Write(uint16_t Value);
+static uint32_t SPIx_Read(uint8_t ReadSize);
+static uint8_t SPIx_WriteRead(uint8_t Byte);
+static void SPIx_Error(void);
+static void SPIx_MspInit(SPI_HandleTypeDef *hspi);
+
+/* Link function for LCD peripheral */
+void LCD_IO_Init(void);
+void LCD_IO_WriteData(uint16_t RegValue);
+void LCD_IO_WriteReg(uint8_t Reg);
+uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize);
+void LCD_Delay(uint32_t delay);
+
+/* IOExpander IO functions */
+void IOE_Init(void);
+void IOE_ITConfig(void);
+void IOE_Delay(uint32_t Delay);
+void IOE_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
+uint8_t IOE_Read(uint8_t Addr, uint8_t Reg);
+uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length);
+void IOE_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length);
+
+/* Link function for GYRO peripheral */
+void GYRO_IO_Init(void);
+void GYRO_IO_Write(uint8_t* pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite);
+void GYRO_IO_Read(uint8_t* pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead);
+
+#ifdef EE_M24LR64
+/* Link function for I2C EEPROM peripheral */
+void EEPROM_IO_Init(void);
+HAL_StatusTypeDef EEPROM_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
+HAL_StatusTypeDef EEPROM_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
+HAL_StatusTypeDef EEPROM_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
+#endif /* EE_M24LR64 */
+
+/**
+ * @}
+ */
+
+/** @defgroup STM32F429I_DISCOVERY_LOW_LEVEL_Private_Functions STM32F429I DISCOVERY LOW LEVEL Private Functions
+ * @{
+ */
+
+/**
+ * @brief This method returns the STM32F429I DISCO BSP Driver revision
+ * @retval version: 0xXYZR (8bits for each decimal, R for RC)
+ */
+uint32_t BSP_GetVersion(void)
+{
+ return __STM32F429I_DISCO_BSP_VERSION;
+}
+
+/**
+ * @brief Configures LED GPIO.
+ * @param Led: Specifies the Led to be configured.
+ * This parameter can be one of following parameters:
+ * @arg LED3
+ * @arg LED4
+ */
+void BSP_LED_Init(Led_TypeDef Led)
+{
+ GPIO_InitTypeDef GPIO_InitStruct;
+
+ /* Enable the GPIO_LED Clock */
+ LEDx_GPIO_CLK_ENABLE(Led);
+
+ /* Configure the GPIO_LED pin */
+ GPIO_InitStruct.Pin = GPIO_PIN[Led];
+ GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
+
+ HAL_GPIO_Init(GPIO_PORT[Led], &GPIO_InitStruct);
+
+ HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
+}
+
+/**
+ * @brief Turns selected LED On.
+ * @param Led: Specifies the Led to be set on.
+ * This parameter can be one of following parameters:
+ * @arg LED3
+ * @arg LED4
+ */
+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: Specifies the Led to be set off.
+ * This parameter can be one of following parameters:
+ * @arg LED3
+ * @arg LED4
+ */
+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: Specifies the Led to be toggled.
+ * This parameter can be one of following parameters:
+ * @arg LED3
+ * @arg LED4
+ */
+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: Specifies the Button to be configured.
+ * This parameter should be: BUTTON_KEY
+ * @param ButtonMode: Specifies Button mode.
+ * This parameter can be one of following parameters:
+ * @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_InitStruct;
+
+ /* Enable the BUTTON Clock */
+ BUTTONx_GPIO_CLK_ENABLE(Button);
+
+ if (ButtonMode == BUTTON_MODE_GPIO)
+ {
+ /* Configure Button pin as input */
+ GPIO_InitStruct.Pin = BUTTON_PIN[Button];
+ GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
+ HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
+ }
+
+ if (ButtonMode == BUTTON_MODE_EXTI)
+ {
+ /* Configure Button pin as input with External interrupt */
+ GPIO_InitStruct.Pin = BUTTON_PIN[Button];
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
+ HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct);
+
+ /* 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 Returns the selected Button state.
+ * @param Button: Specifies the Button to be checked.
+ * This parameter should be: BUTTON_KEY
+ * @retval The Button GPIO pin value.
+ */
+uint32_t BSP_PB_GetState(Button_TypeDef Button)
+{
+ return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
+}
+
+/*******************************************************************************
+ BUS OPERATIONS
+*******************************************************************************/
+
+/******************************* I2C Routines *********************************/
+
+/**
+ * @brief I2Cx MSP Initialization
+ * @param hi2c: I2C handle
+ */
+static void I2Cx_MspInit(I2C_HandleTypeDef *hi2c)
+{
+ GPIO_InitTypeDef GPIO_InitStruct;
+#ifdef EE_M24LR64
+ static DMA_HandleTypeDef hdma_tx;
+ static DMA_HandleTypeDef hdma_rx;
+
+ I2C_HandleTypeDef* pI2cHandle;
+ pI2cHandle = &EEP_I2cHandle;
+#endif /* EE_M24LR64 */
+
+ if (hi2c->Instance == DISCOVERY_I2Cx)
+ {
+ /* Configure the GPIOs ---------------------------------------------------*/
+ /* Enable GPIO clock */
+ DISCOVERY_I2Cx_SDA_GPIO_CLK_ENABLE();
+ DISCOVERY_I2Cx_SCL_GPIO_CLK_ENABLE();
+
+ /* Configure I2C Tx as alternate function */
+ GPIO_InitStruct.Pin = DISCOVERY_I2Cx_SCL_PIN;
+ GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
+ GPIO_InitStruct.Alternate = DISCOVERY_I2Cx_SCL_SDA_AF;
+ HAL_GPIO_Init(DISCOVERY_I2Cx_SCL_GPIO_PORT, &GPIO_InitStruct);
+
+ /* Configure I2C Rx as alternate function */
+ GPIO_InitStruct.Pin = DISCOVERY_I2Cx_SDA_PIN;
+ HAL_GPIO_Init(DISCOVERY_I2Cx_SDA_GPIO_PORT, &GPIO_InitStruct);
+
+
+ /* Configure the Discovery I2Cx peripheral -------------------------------*/
+ /* Enable I2C3 clock */
+ DISCOVERY_I2Cx_CLOCK_ENABLE();
+
+ /* Force the I2C Peripheral Clock Reset */
+ DISCOVERY_I2Cx_FORCE_RESET();
+
+ /* Release the I2C Peripheral Clock Reset */
+ DISCOVERY_I2Cx_RELEASE_RESET();
+
+ /* Enable and set Discovery I2Cx Interrupt to the lowest priority */
+ HAL_NVIC_SetPriority(DISCOVERY_I2Cx_EV_IRQn, 0x0F, 0);
+ HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_EV_IRQn);
+
+ /* Enable and set Discovery I2Cx Interrupt to the lowest priority */
+ HAL_NVIC_SetPriority(DISCOVERY_I2Cx_ER_IRQn, 0x0F, 0);
+ HAL_NVIC_EnableIRQ(DISCOVERY_I2Cx_ER_IRQn);
+
+#ifdef EE_M24LR64
+ /* I2C DMA TX and RX channels configuration */
+ /* Enable the DMA clock */
+ EEPROM_I2C_DMA_CLK_ENABLE();
+
+ /* Configure the DMA stream for the EE I2C peripheral TX direction */
+ /* Configure the DMA Stream */
+ hdma_tx.Instance = EEPROM_I2C_DMA_STREAM_TX;
+ /* Set the parameters to be configured */
+ hdma_tx.Init.Channel = EEPROM_I2C_DMA_CHANNEL;
+ hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+ hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+ hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
+ hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+ hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+ hdma_tx.Init.Mode = DMA_NORMAL;
+ hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
+ hdma_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
+ hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
+ hdma_tx.Init.MemBurst = DMA_MBURST_SINGLE;
+ hdma_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
+
+ /* Associate the initilalized hdma_tx handle to the the pI2cHandle handle */
+ __HAL_LINKDMA(pI2cHandle, hdmatx, hdma_tx);
+
+ /* Configure the DMA Stream */
+ HAL_DMA_Init(&hdma_tx);
+
+ // Added for mbed
+ /* Configure and enable I2C DMA TX Channel interrupt */
+ //HAL_NVIC_SetPriority((IRQn_Type)(EEPROM_I2C_DMA_TX_IRQn), EEPROM_I2C_DMA_PREPRIO, 0);
+ //HAL_NVIC_EnableIRQ((IRQn_Type)(EEPROM_I2C_DMA_TX_IRQn));
+ // Enable interrupt
+ IRQn_Type irqn = (IRQn_Type)(EEPROM_I2C_DMA_TX_IRQn);
+ NVIC_ClearPendingIRQ(irqn);
+ NVIC_DisableIRQ(irqn);
+ NVIC_SetPriority(irqn, EEPROM_I2C_DMA_PREPRIO);
+ NVIC_SetVector(irqn, (uint32_t)EEPROM_I2C_DMA_TX_IRQHandler);
+ NVIC_EnableIRQ(irqn);
+
+ /* Configure the DMA stream for the EE I2C peripheral TX direction */
+ /* Configure the DMA Stream */
+ hdma_rx.Instance = EEPROM_I2C_DMA_STREAM_RX;
+ /* Set the parameters to be configured */
+ hdma_rx.Init.Channel = EEPROM_I2C_DMA_CHANNEL;
+ hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+ hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+ hdma_rx.Init.MemInc = DMA_MINC_ENABLE;
+ hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+ hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+ hdma_rx.Init.Mode = DMA_NORMAL;
+ hdma_rx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
+ hdma_rx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
+ hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
+ hdma_rx.Init.MemBurst = DMA_MBURST_SINGLE;
+ hdma_rx.Init.PeriphBurst = DMA_PBURST_SINGLE;
+
+ /* Associate the initilalized hdma_rx handle to the the pI2cHandle handle*/
+ __HAL_LINKDMA(pI2cHandle, hdmarx, hdma_rx);
+
+ /* Configure the DMA Stream */
+ HAL_DMA_Init(&hdma_rx);
+
+ // Added for mbed
+ /* Configure and enable I2C DMA RX Channel interrupt */
+ //HAL_NVIC_SetPriority((IRQn_Type)(EEPROM_I2C_DMA_RX_IRQn), EEPROM_I2C_DMA_PREPRIO, 0);
+ //HAL_NVIC_EnableIRQ((IRQn_Type)(EEPROM_I2C_DMA_RX_IRQn));
+ // Enable interrupt
+ irqn = (IRQn_Type)(EEPROM_I2C_DMA_RX_IRQn);
+ NVIC_ClearPendingIRQ(irqn);
+ NVIC_DisableIRQ(irqn);
+ NVIC_SetPriority(irqn, EEPROM_I2C_DMA_PREPRIO);
+ NVIC_SetVector(irqn, (uint32_t)EEPROM_I2C_DMA_RX_IRQHandler);
+ NVIC_EnableIRQ(irqn);
+
+#endif /* EE_M24LR64 */
+ }
+}
+
+/**
+ * @brief I2Cx Bus initialization.
+ */
+static void I2Cx_Init(void)
+{
+ if(HAL_I2C_GetState(&EEP_I2cHandle) == HAL_I2C_STATE_RESET)
+ {
+ EEP_I2cHandle.Instance = DISCOVERY_I2Cx;
+ EEP_I2cHandle.Init.ClockSpeed = BSP_I2C_SPEED;
+ EEP_I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2;
+ EEP_I2cHandle.Init.OwnAddress1 = 0;
+ EEP_I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+ EEP_I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
+ EEP_I2cHandle.Init.OwnAddress2 = 0;
+ EEP_I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
+ EEP_I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
+
+ /* Init the I2C */
+ I2Cx_MspInit(&EEP_I2cHandle);
+ HAL_I2C_Init(&EEP_I2cHandle);
+ }
+}
+
+/**
+ * @brief Configures Interruption pin for I2C communication.
+ */
+static void I2Cx_ITConfig(void)
+{
+ GPIO_InitTypeDef GPIO_InitStruct;
+
+ /* Enable the GPIO EXTI Clock */
+ STMPE811_INT_CLK_ENABLE();
+
+ GPIO_InitStruct.Pin = STMPE811_INT_PIN;
+ GPIO_InitStruct.Pull = GPIO_PULLUP;
+ GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
+ GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
+ HAL_GPIO_Init(STMPE811_INT_GPIO_PORT, &GPIO_InitStruct);
+
+ /* Enable and set GPIO EXTI Interrupt to the highest priority */
+ HAL_NVIC_SetPriority((IRQn_Type)(STMPE811_INT_EXTI), 0x0F, 0x00);
+ HAL_NVIC_EnableIRQ((IRQn_Type)(STMPE811_INT_EXTI));
+}
+
+/**
+ * @brief Writes a value in a register of the device through BUS.
+ * @param Addr: Device address on BUS Bus.
+ * @param Reg: The target register address to write
+ * @param Value: The target register value to be written
+ */
+static void I2Cx_WriteData(uint8_t Addr, uint8_t Reg, uint8_t Value)
+ {
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Write(&EEP_I2cHandle, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, I2cxTimeout);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+ }
+}
+
+/**
+ * @brief Writes a value in a register of the device through BUS.
+ * @param Addr: Device address on BUS Bus.
+ * @param Reg: The target register address to write
+ * @param pBuffer: The target register value to be written
+ * @param Length: buffer size to be written
+ */
+static void I2Cx_WriteBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
+ {
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Write(&EEP_I2cHandle, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, pBuffer, Length, I2cxTimeout);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+ }
+}
+
+/**
+ * @brief Reads a register of the device through BUS.
+ * @param Addr: Device address on BUS Bus.
+ * @param Reg: The target register address to write
+ * @retval Data read at register address
+ */
+static uint8_t I2Cx_ReadData(uint8_t Addr, uint8_t Reg)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+ uint8_t value = 0;
+
+ status = HAL_I2C_Mem_Read(&EEP_I2cHandle, Addr, Reg, I2C_MEMADD_SIZE_8BIT, &value, 1, I2cxTimeout);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+
+ }
+ return value;
+}
+
+/**
+ * @brief Reads multiple data on the BUS.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @param pBuffer: pointer to read data buffer
+ * @param Length: length of the data
+ * @retval 0 if no problems to read multiple data
+ */
+static uint8_t I2Cx_ReadBuffer(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Read(&EEP_I2cHandle, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, pBuffer, Length, I2cxTimeout);
+
+ /* Check the communication status */
+ if(status == HAL_OK)
+ {
+ return 0;
+ }
+ else
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+
+ return 1;
+ }
+}
+
+#ifdef EE_M24LR64
+/**
+ * @brief Writes a value in a register of the device through BUS in using DMA mode.
+ * @param Addr: Device address on BUS Bus.
+ * @param Reg: The target register address to write
+ * @param pBuffer: The target register value to be written
+ * @param Length: buffer size to be written
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef I2Cx_WriteBufferDMA(uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length)
+ {
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Write_DMA(&EEP_I2cHandle, Addr, Reg, I2C_MEMADD_SIZE_16BIT, pBuffer, Length);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+ }
+
+ return status;
+}
+
+/**
+ * @brief Reads multiple data on the BUS in using DMA mode.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @param pBuffer: pointer to read data buffer
+ * @param Length: length of the data
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef I2Cx_ReadBufferDMA(uint8_t Addr, uint16_t Reg, uint8_t *pBuffer, uint16_t Length)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Read_DMA(&EEP_I2cHandle, Addr, Reg, I2C_MEMADD_SIZE_16BIT, pBuffer, Length);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ I2Cx_Error();
+ }
+
+ return status;
+}
+
+/**
+* @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
+*/
+static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials)
+{
+ return (HAL_I2C_IsDeviceReady(&EEP_I2cHandle, DevAddress, Trials, I2cxTimeout));
+}
+#endif /* EE_M24LR64 */
+
+/**
+ * @brief I2Cx error treatment function
+ */
+static void I2Cx_Error(void)
+{
+ /* De-initialize the I2C communication BUS */
+ HAL_I2C_DeInit(&EEP_I2cHandle);
+
+ /* Re-Initialize the I2C communication BUS */
+ I2Cx_Init();
+}
+
+/******************************* SPI Routines *********************************/
+
+/**
+ * @brief SPIx Bus initialization
+ */
+static void SPIx_Init(void)
+{
+ if(HAL_SPI_GetState(&SpiHandle) == HAL_SPI_STATE_RESET)
+ {
+ /* SPI configuration -----------------------------------------------------*/
+ SpiHandle.Instance = DISCOVERY_SPIx;
+ /* SPI baudrate is set to 5.6 MHz (PCLK2/SPI_BaudRatePrescaler = 90/16 = 5.625 MHz)
+ to verify these constraints:
+ - ILI9341 LCD SPI interface max baudrate is 10MHz for write and 6.66MHz for read
+ - l3gd20 SPI interface max baudrate is 10MHz for write/read
+ - PCLK2 frequency is set to 90 MHz
+ */
+ SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
+
+ /* On STM32F429I-Discovery, LCD ID cannot be read then keep a common configuration */
+ /* for LCD and GYRO (SPI_DIRECTION_2LINES) */
+ /* Note: To read a register a LCD, SPI_DIRECTION_1LINE should be set */
+ SpiHandle.Init.Direction = SPI_DIRECTION_2LINES;
+ SpiHandle.Init.CLKPhase = SPI_PHASE_1EDGE;
+ SpiHandle.Init.CLKPolarity = SPI_POLARITY_LOW;
+ SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
+ SpiHandle.Init.CRCPolynomial = 7;
+ SpiHandle.Init.DataSize = SPI_DATASIZE_8BIT;
+ SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB;
+ SpiHandle.Init.NSS = SPI_NSS_SOFT;
+ SpiHandle.Init.TIMode = SPI_TIMODE_DISABLED;
+ SpiHandle.Init.Mode = SPI_MODE_MASTER;
+
+ SPIx_MspInit(&SpiHandle);
+ HAL_SPI_Init(&SpiHandle);
+ }
+}
+
+/**
+ * @brief Reads 4 bytes from device.
+ * @param ReadSize: Number of bytes to read (max 4 bytes)
+ * @retval Value read on the SPI
+ */
+static uint32_t SPIx_Read(uint8_t ReadSize)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+ uint32_t readvalue;
+
+ status = HAL_SPI_Receive(&SpiHandle, (uint8_t*) &readvalue, ReadSize, SpixTimeout);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ SPIx_Error();
+ }
+
+ return readvalue;
+}
+
+/**
+ * @brief Writes a byte to device.
+ * @param Value: value to be written
+ */
+static void SPIx_Write(uint16_t Value)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_SPI_Transmit(&SpiHandle, (uint8_t*) &Value, 1, SpixTimeout);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initialize the BUS */
+ SPIx_Error();
+ }
+}
+
+/**
+ * @brief Sends a Byte through the SPI interface and return the Byte received
+ * from the SPI bus.
+ * @param Byte: Byte send.
+ * @retval The received byte value
+ */
+static uint8_t SPIx_WriteRead(uint8_t Byte)
+{
+ uint8_t receivedbyte = 0;
+
+ /* Send a Byte through the SPI peripheral */
+ /* Read byte from the SPI bus */
+ if(HAL_SPI_TransmitReceive(&SpiHandle, (uint8_t*) &Byte, (uint8_t*) &receivedbyte, 1, SpixTimeout) != HAL_OK)
+ {
+ SPIx_Error();
+ }
+
+ return receivedbyte;
+}
+
+/**
+ * @brief SPIx error treatment function.
+ */
+static void SPIx_Error(void)
+{
+ /* De-initialize the SPI communication BUS */
+ HAL_SPI_DeInit(&SpiHandle);
+
+ /* Re- Initialize the SPI communication BUS */
+ SPIx_Init();
+}
+
+/**
+ * @brief SPI MSP Init.
+ * @param hspi: SPI handle
+ */
+static void SPIx_MspInit(SPI_HandleTypeDef *hspi)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Enable SPIx clock */
+ DISCOVERY_SPIx_CLK_ENABLE();
+
+ /* Enable DISCOVERY_SPI GPIO clock */
+ DISCOVERY_SPIx_GPIO_CLK_ENABLE();
+
+ /* configure SPI SCK, MOSI and MISO */
+ GPIO_InitStructure.Pin = (DISCOVERY_SPIx_SCK_PIN | DISCOVERY_SPIx_MOSI_PIN | DISCOVERY_SPIx_MISO_PIN);
+ GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
+ GPIO_InitStructure.Pull = GPIO_PULLDOWN;
+ GPIO_InitStructure.Speed = GPIO_SPEED_MEDIUM;
+ GPIO_InitStructure.Alternate = DISCOVERY_SPIx_AF;
+ HAL_GPIO_Init(DISCOVERY_SPIx_GPIO_PORT, &GPIO_InitStructure);
+}
+
+/********************************* LINK LCD ***********************************/
+
+/**
+ * @brief Configures the LCD_SPI interface.
+ */
+void LCD_IO_Init(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ if(Is_LCD_IO_Initialized == 0)
+ {
+ Is_LCD_IO_Initialized = 1;
+
+ /* Configure NCS in Output Push-Pull mode */
+ LCD_WRX_GPIO_CLK_ENABLE();
+ GPIO_InitStructure.Pin = LCD_WRX_PIN;
+ GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStructure.Pull = GPIO_NOPULL;
+ GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
+ HAL_GPIO_Init(LCD_WRX_GPIO_PORT, &GPIO_InitStructure);
+
+ LCD_RDX_GPIO_CLK_ENABLE();
+ GPIO_InitStructure.Pin = LCD_RDX_PIN;
+ GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStructure.Pull = GPIO_NOPULL;
+ GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
+ HAL_GPIO_Init(LCD_RDX_GPIO_PORT, &GPIO_InitStructure);
+
+ /* Configure the LCD Control pins ----------------------------------------*/
+ LCD_NCS_GPIO_CLK_ENABLE();
+
+ /* Configure NCS in Output Push-Pull mode */
+ GPIO_InitStructure.Pin = LCD_NCS_PIN;
+ GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStructure.Pull = GPIO_NOPULL;
+ GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
+ HAL_GPIO_Init(LCD_NCS_GPIO_PORT, &GPIO_InitStructure);
+
+ /* Set or Reset the control line */
+ LCD_CS_LOW();
+ LCD_CS_HIGH();
+
+ SPIx_Init();
+ }
+}
+
+/**
+ * @brief Writes register value.
+ */
+void LCD_IO_WriteData(uint16_t RegValue)
+{
+ /* Set WRX to send data */
+ LCD_WRX_HIGH();
+
+ /* Reset LCD control line(/CS) and Send data */
+ LCD_CS_LOW();
+ SPIx_Write(RegValue);
+
+ /* Deselect: Chip Select high */
+ LCD_CS_HIGH();
+}
+
+/**
+ * @brief Writes register address.
+ */
+void LCD_IO_WriteReg(uint8_t Reg)
+{
+ /* Reset WRX to send command */
+ LCD_WRX_LOW();
+
+ /* Reset LCD control line(/CS) and Send command */
+ LCD_CS_LOW();
+ SPIx_Write(Reg);
+
+ /* Deselect: Chip Select high */
+ LCD_CS_HIGH();
+}
+
+/**
+ * @brief Reads register value.
+ * @param RegValue Address of the register to read
+ * @param ReadSize Number of bytes to read
+ * @retval Content of the register value
+ */
+uint32_t LCD_IO_ReadData(uint16_t RegValue, uint8_t ReadSize)
+{
+ uint32_t readvalue = 0;
+
+ /* Select: Chip Select low */
+ LCD_CS_LOW();
+
+ /* Reset WRX to send command */
+ LCD_WRX_LOW();
+
+ SPIx_Write(RegValue);
+
+ readvalue = SPIx_Read(ReadSize);
+
+ /* Set WRX to send data */
+ LCD_WRX_HIGH();
+
+ /* Deselect: Chip Select high */
+ LCD_CS_HIGH();
+
+ return readvalue;
+}
+
+/**
+ * @brief Wait for loop in ms.
+ * @param Delay in ms.
+ */
+void LCD_Delay(uint32_t Delay)
+{
+ //HAL_Delay(Delay);
+ wait_ms(Delay);
+}
+
+/*******************************************************************************
+ LINK OPERATIONS
+*******************************************************************************/
+
+/********************************* LINK IOE ***********************************/
+
+/**
+ * @brief IOE Low Level Initialization.
+ */
+void IOE_Init(void)
+{
+ I2Cx_Init();
+}
+
+/**
+ * @brief IOE Low Level Interrupt configuration.
+ */
+void IOE_ITConfig(void)
+{
+ I2Cx_ITConfig();
+}
+
+/**
+ * @brief IOE Writes single data operation.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @param Value: Data to be written
+ */
+void IOE_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+ I2Cx_WriteData(Addr, Reg, Value);
+}
+
+/**
+ * @brief IOE Reads single data.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @retval The read data
+ */
+uint8_t IOE_Read(uint8_t Addr, uint8_t Reg)
+{
+ return I2Cx_ReadData(Addr, Reg);
+}
+
+/**
+ * @brief IOE Writes multiple data.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @param pBuffer: pointer to data buffer
+ * @param Length: length of the data
+ */
+void IOE_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
+{
+ I2Cx_WriteBuffer(Addr, Reg, pBuffer, Length);
+}
+
+/**
+ * @brief IOE Reads multiple data.
+ * @param Addr: I2C Address
+ * @param Reg: Reg Address
+ * @param pBuffer: pointer to data buffer
+ * @param Length: length of the data
+ * @retval 0 if no problems to read multiple data
+ */
+uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *pBuffer, uint16_t Length)
+{
+ return I2Cx_ReadBuffer(Addr, Reg, pBuffer, Length);
+}
+
+/**
+ * @brief IOE Delay.
+ * @param Delay in ms
+ */
+void IOE_Delay(uint32_t Delay)
+{
+ //HAL_Delay(Delay);
+ wait_ms(Delay);
+}
+
+/********************************* LINK GYROSCOPE *****************************/
+
+/**
+ * @brief Configures the Gyroscope SPI interface.
+ */
+void GYRO_IO_Init(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Configure the Gyroscope Control pins ------------------------------------*/
+ /* Enable CS GPIO clock and Configure GPIO PIN for Gyroscope Chip select */
+ GYRO_CS_GPIO_CLK_ENABLE();
+ GPIO_InitStructure.Pin = GYRO_CS_PIN;
+ GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
+ GPIO_InitStructure.Pull = GPIO_NOPULL;
+ GPIO_InitStructure.Speed = GPIO_SPEED_MEDIUM;
+ HAL_GPIO_Init(GYRO_CS_GPIO_PORT, &GPIO_InitStructure);
+
+ /* Deselect: Chip Select high */
+ GYRO_CS_HIGH();
+
+ /* Enable INT1, INT2 GPIO clock and Configure GPIO PINs to detect Interrupts */
+ GYRO_INT_GPIO_CLK_ENABLE();
+ GPIO_InitStructure.Pin = GYRO_INT1_PIN | GYRO_INT2_PIN;
+ GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
+ GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
+ GPIO_InitStructure.Pull= GPIO_NOPULL;
+ HAL_GPIO_Init(GYRO_INT_GPIO_PORT, &GPIO_InitStructure);
+
+ SPIx_Init();
+}
+
+/**
+ * @brief Writes one byte to the Gyroscope.
+ * @param pBuffer: Pointer to the buffer containing the data to be written to the Gyroscope.
+ * @param WriteAddr: Gyroscope's internal address to write to.
+ * @param NumByteToWrite: Number of bytes to write.
+ */
+void GYRO_IO_Write(uint8_t* pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite)
+{
+ /* Configure the MS bit:
+ - When 0, the address will remain unchanged in multiple read/write commands.
+ - When 1, the address will be auto incremented in multiple read/write commands.
+ */
+ if(NumByteToWrite > 0x01)
+ {
+ WriteAddr |= (uint8_t)MULTIPLEBYTE_CMD;
+ }
+ /* Set chip select Low at the start of the transmission */
+ GYRO_CS_LOW();
+
+ /* Send the Address of the indexed register */
+ SPIx_WriteRead(WriteAddr);
+
+ /* Send the data that will be written into the device (MSB First) */
+ while(NumByteToWrite >= 0x01)
+ {
+ SPIx_WriteRead(*pBuffer);
+ NumByteToWrite--;
+ pBuffer++;
+ }
+
+ /* Set chip select High at the end of the transmission */
+ GYRO_CS_HIGH();
+}
+
+/**
+ * @brief Reads a block of data from the Gyroscope.
+ * @param pBuffer: Pointer to the buffer that receives the data read from the Gyroscope.
+ * @param ReadAddr: Gyroscope's internal address to read from.
+ * @param NumByteToRead: Number of bytes to read from the Gyroscope.
+ */
+void GYRO_IO_Read(uint8_t* pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead)
+{
+ if(NumByteToRead > 0x01)
+ {
+ ReadAddr |= (uint8_t)(READWRITE_CMD | MULTIPLEBYTE_CMD);
+ }
+ else
+ {
+ ReadAddr |= (uint8_t)READWRITE_CMD;
+ }
+ /* Set chip select Low at the start of the transmission */
+ GYRO_CS_LOW();
+
+ /* Send the Address of the indexed register */
+ SPIx_WriteRead(ReadAddr);
+
+ /* Receive the data that will be read from the device (MSB First) */
+ while(NumByteToRead > 0x00)
+ {
+ /* Send dummy byte (0x00) to generate the SPI clock to Gyroscope (Slave device) */
+ *pBuffer = SPIx_WriteRead(DUMMY_BYTE);
+ NumByteToRead--;
+ pBuffer++;
+ }
+
+ /* Set chip select High at the end of the transmission */
+ GYRO_CS_HIGH();
+}
+
+
+#ifdef EE_M24LR64
+
+/******************************** LINK I2C EEPROM *****************************/
+
+/**
+ * @brief Initializes peripherals used by the I2C EEPROM driver.
+ */
+void EEPROM_IO_Init(void)
+{
+ I2Cx_Init();
+}
+
+/**
+ * @brief Writes data to I2C EEPROM driver in using DMA channel.
+ * @param DevAddress: Target device address
+ * @param MemAddress: Internal memory address
+ * @param pBuffer: Pointer to data buffer
+ * @param BufferSize: Amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef EEPROM_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize)
+{
+ return (I2Cx_WriteBufferDMA(DevAddress, MemAddress, pBuffer, BufferSize));
+}
+
+/**
+ * @brief Reads data from I2C EEPROM driver in using DMA channel.
+ * @param DevAddress: Target device address
+ * @param MemAddress: Internal memory address
+ * @param pBuffer: Pointer to data buffer
+ * @param BufferSize: Amount of data to be read
+ * @retval HAL status
+ */
+HAL_StatusTypeDef EEPROM_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize)
+{
+ return (I2Cx_ReadBufferDMA(DevAddress, MemAddress, pBuffer, BufferSize));
+}
+
+/**
+* @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 EEPROM_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials)
+{
+ return (I2Cx_IsDeviceReady(DevAddress, Trials));
+}
+
+// Added for mbed
+/**
+ * @brief This function handles sEE DMA TX interrupt request.
+ * @param None
+ * @retval None
+ */
+static void EEPROM_I2C_DMA_TX_IRQHandler(void)
+{
+ HAL_DMA_IRQHandler(EEP_I2cHandle.hdmatx);
+}
+
+/**
+ * @brief This function handles sEE DMA RX interrupt request.
+ * @param None
+ * @retval None
+ */
+static void EEPROM_I2C_DMA_RX_IRQHandler(void)
+{
+ HAL_DMA_IRQHandler(EEP_I2cHandle.hdmarx);
+}
+
+#endif /* EE_M24LR64 */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/