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Diff: stm32469i_discovery/stm32469i_discovery.c
- Revision:
- 0:0002c86c2220
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32469i_discovery/stm32469i_discovery.c Fri Dec 18 07:32:01 2015 +0000
@@ -0,0 +1,948 @@
+/**
+ ******************************************************************************
+ * @file stm32469i_discovery.c
+ * @author MCD Application Team
+ * @version V1.0.1
+ * @date 29-September-2015
+ * @brief This file provides a set of firmware functions to manage LEDs,
+ * push-buttons, external SDRAM, external QSPI Flash, RF EEPROM,
+ * available on STM32469I-Discovery
+ * board (MB1189) RevA/B from STMicroelectronics.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 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 "stm32469i_discovery.h"
+
+/** @addtogroup BSP
+ * @{
+ */
+
+/** @addtogroup STM32469I_Discovery
+ * @{
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL STM32469I-Discovery LOW LEVEL
+ * @{
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_TypesDefinitions STM32469I Discovery Low Level Private Typedef
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_Defines LOW_LEVEL Private Defines
+ * @{
+ */
+/**
+ * @brief STM32469I Discovery BSP Driver version number V1.0.1
+ */
+#define __STM32469I_DISCOVERY_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */
+#define __STM32469I_DISCOVERY_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
+#define __STM32469I_DISCOVERY_BSP_VERSION_SUB2 (0x01) /*!< [15:8] sub2 version */
+#define __STM32469I_DISCOVERY_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
+#define __STM32469I_DISCOVERY_BSP_VERSION ((__STM32469I_DISCOVERY_BSP_VERSION_MAIN << 24)\
+ |(__STM32469I_DISCOVERY_BSP_VERSION_SUB1 << 16)\
+ |(__STM32469I_DISCOVERY_BSP_VERSION_SUB2 << 8 )\
+ |(__STM32469I_DISCOVERY_BSP_VERSION_RC))
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_Macros LOW_LEVEL Private Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_Variables LOW_LEVEL Private Variables
+ * @{
+ */
+uint32_t GPIO_PIN[LEDn] = {LED1_PIN,
+ LED2_PIN,
+ LED3_PIN,
+ LED4_PIN};
+
+GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT,
+ LED2_GPIO_PORT,
+ LED3_GPIO_PORT,
+ LED4_GPIO_PORT};
+
+GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT };
+
+const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN };
+
+const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn };
+
+
+static I2C_HandleTypeDef heval_I2c1;
+static I2C_HandleTypeDef heval_I2c2;
+
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_FunctionPrototypes LOW_LEVEL Private FunctionPrototypes
+ * @{
+ */
+static void I2C1_MspInit(void);
+static void I2C2_MspInit(void);
+static void I2C1_Init(void);
+static void I2C2_Init(void);
+
+#if defined(USE_IOEXPANDER)
+static void I2C1_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
+static uint8_t I2C1_Read(uint8_t Addr, uint8_t Reg);
+#endif /* USE_IOEXPANDER */
+static HAL_StatusTypeDef I2C1_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
+static HAL_StatusTypeDef I2C2_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
+static HAL_StatusTypeDef I2C1_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
+static HAL_StatusTypeDef I2C2_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
+static HAL_StatusTypeDef I2C1_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
+static void I2C1_Error(uint8_t Addr);
+static void I2C2_Error(uint8_t Addr);
+
+/* AUDIO IO functions */
+void AUDIO_IO_Init(void);
+void AUDIO_IO_DeInit(void);
+void AUDIO_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
+uint8_t AUDIO_IO_Read(uint8_t Addr, uint8_t Reg);
+void AUDIO_IO_Delay(uint32_t Delay);
+
+
+/* I2C EEPROM IO function */
+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);
+
+/* TouchScreen (TS) IO functions */
+void TS_IO_Init(void);
+void TS_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
+uint8_t TS_IO_Read(uint8_t Addr, uint8_t Reg);
+uint16_t TS_IO_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
+void TS_IO_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length);
+void TS_IO_Delay(uint32_t Delay);
+void OTM8009A_IO_Delay(uint32_t Delay);
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_BSP_Public_Functions BSP Public Functions
+ * @{
+ */
+
+ /**
+ * @brief This method returns the STM32469I Discovery BSP Driver revision
+ * @retval version: 0xXYZR (8bits for each decimal, R for RC)
+ */
+uint32_t BSP_GetVersion(void)
+{
+ return __STM32469I_DISCOVERY_BSP_VERSION;
+}
+
+/**
+ * @brief Configures LED GPIO.
+ * @param Led: LED to be configured.
+ * This parameter can be one of the following values:
+ * @arg LED1
+ * @arg LED2
+ * @arg LED3
+ * @arg LED4
+ * @retval None
+ */
+void BSP_LED_Init(Led_TypeDef Led)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ if (Led <= DISCO_LED4)
+ {
+ /* 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_PULLUP;
+ gpio_init_structure.Speed = GPIO_SPEED_HIGH;
+
+ switch(Led)
+ {
+ case DISCO_LED1 :
+ LED1_GPIO_CLK_ENABLE();
+ break;
+ case DISCO_LED2 :
+ LED2_GPIO_CLK_ENABLE();
+ break;
+ case DISCO_LED3 :
+ LED3_GPIO_CLK_ENABLE();
+ break;
+ case DISCO_LED4 :
+ LED4_GPIO_CLK_ENABLE();
+ break;
+ default :
+ break;
+
+ } /* end switch */
+
+ HAL_GPIO_Init(GPIO_PORT[Led], &gpio_init_structure);
+
+ /* By default, turn off LED by setting a high level on corresponding GPIO */
+ HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET);
+
+ } /* of if (Led <= LED4) */
+
+}
+
+
+/**
+ * @brief DeInit LEDs.
+ * @param Led: LED to be configured.
+ * This parameter can be one of the following values:
+ * @arg LED1
+ * @arg LED2
+ * @arg LED3
+ * @arg LED4
+ * @note Led DeInit does not disable the GPIO clock nor disable the Mfx
+ * @retval None
+ */
+void BSP_LED_DeInit(Led_TypeDef Led)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ if (Led <= DISCO_LED4)
+ {
+ /* 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_SET);
+ 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 LED1
+ * @arg LED2
+ * @arg LED3
+ * @arg LED4
+ * @retval None
+ */
+void BSP_LED_On(Led_TypeDef Led)
+{
+ if (Led <= DISCO_LED4)
+ {
+ HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_RESET);
+ }
+
+}
+
+/**
+ * @brief Turns selected LED Off.
+ * @param Led: LED to be set off
+ * This parameter can be one of the following values:
+ * @arg LED1
+ * @arg LED2
+ * @arg LED3
+ * @arg LED4
+ * @retval None
+ */
+void BSP_LED_Off(Led_TypeDef Led)
+{
+ if (Led <= DISCO_LED4)
+ {
+ HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET);
+ }
+}
+
+/**
+ * @brief Toggles the selected LED.
+ * @param Led: LED to be toggled
+ * This parameter can be one of the following values:
+ * @arg LED1
+ * @arg LED2
+ * @arg LED3
+ * @arg LED4
+ * @retval None
+ */
+void BSP_LED_Toggle(Led_TypeDef Led)
+{
+ if (Led <= DISCO_LED4)
+ {
+ 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
+ * @arg BUTTON_USER: User Push Button
+ * @param Button_Mode: 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
+ * @retval None
+ */
+void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ /* Enable the BUTTON clock */
+ BUTTON_GPIO_CLK_ENABLE();
+
+ if(Button_Mode == 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_NOPULL;
+ gpio_init_structure.Speed = GPIO_SPEED_FAST;
+ HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
+ }
+
+ if(Button_Mode == BUTTON_MODE_EXTI)
+ {
+ /* Configure Button pin as input with External interrupt */
+ gpio_init_structure.Pin = BUTTON_PIN[Button];
+ gpio_init_structure.Pull = GPIO_NOPULL;
+ gpio_init_structure.Speed = GPIO_SPEED_FAST;
+
+ 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
+ * @arg BUTTON_USER: User Push Button
+ * @note PB DeInit does not disable the GPIO clock
+ * @retval None
+ */
+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
+ * @arg BUTTON_USER: User Push Button
+ * @retval The Button GPIO pin value
+ */
+uint32_t BSP_PB_GetState(Button_TypeDef Button)
+{
+ return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup STM32469I_Discovery_LOW_LEVEL_Private_Functions STM32469I_Discovery_LOW_LEVEL Private Functions
+ * @{
+ */
+
+
+/*******************************************************************************
+ BUS OPERATIONS
+*******************************************************************************/
+
+/******************************* I2C Routines *********************************/
+/**
+ * @brief Initializes I2C MSP.
+ */
+static void I2C1_MspInit(void)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ /*** Configure the GPIOs ***/
+ /* Enable GPIO clock */
+ DISCO_I2C1_SCL_SDA_GPIO_CLK_ENABLE();
+
+ /* Configure I2C Tx as alternate function */
+ gpio_init_structure.Pin = DISCO_I2C1_SCL_PIN;
+ gpio_init_structure.Mode = GPIO_MODE_AF_OD;
+ gpio_init_structure.Pull = GPIO_NOPULL;
+ gpio_init_structure.Speed = GPIO_SPEED_FAST;
+ gpio_init_structure.Alternate = DISCO_I2C1_SCL_SDA_AF;
+ HAL_GPIO_Init(DISCO_I2C1_SCL_SDA_GPIO_PORT, &gpio_init_structure);
+
+ /* Configure I2C Rx as alternate function */
+ gpio_init_structure.Pin = DISCO_I2C1_SDA_PIN;
+ HAL_GPIO_Init(DISCO_I2C1_SCL_SDA_GPIO_PORT, &gpio_init_structure);
+
+ /*** Configure the I2C peripheral ***/
+ /* Enable I2C clock */
+ DISCO_I2C1_CLK_ENABLE();
+
+ /* Force the I2C peripheral clock reset */
+ DISCO_I2C1_FORCE_RESET();
+
+ /* Release the I2C peripheral clock reset */
+ DISCO_I2C1_RELEASE_RESET();
+
+ /* Enable and set I2C1 Interrupt to a lower priority */
+ HAL_NVIC_SetPriority(DISCO_I2C1_EV_IRQn, 0x05, 0);
+ HAL_NVIC_EnableIRQ(DISCO_I2C1_EV_IRQn);
+
+ /* Enable and set I2C1 Interrupt to a lower priority */
+ HAL_NVIC_SetPriority(DISCO_I2C1_ER_IRQn, 0x05, 0);
+ HAL_NVIC_EnableIRQ(DISCO_I2C1_ER_IRQn);
+}
+
+/**
+ * @brief Initializes I2C MSP.
+ */
+static void I2C2_MspInit(void)
+{
+ GPIO_InitTypeDef gpio_init_structure;
+
+ /*** Configure the GPIOs ***/
+ /* Enable GPIO clock */
+ DISCO_I2C2_SCL_SDA_GPIO_CLK_ENABLE();
+
+ /* Configure I2C Tx as alternate function */
+ gpio_init_structure.Pin = DISCO_I2C2_SCL_PIN;
+ gpio_init_structure.Mode = GPIO_MODE_AF_OD;
+ gpio_init_structure.Pull = GPIO_NOPULL;
+ gpio_init_structure.Speed = GPIO_SPEED_FAST;
+ gpio_init_structure.Alternate = DISCO_I2C2_SCL_SDA_AF;
+ HAL_GPIO_Init(DISCO_I2C2_SCL_SDA_GPIO_PORT, &gpio_init_structure);
+
+ /* Configure I2C Rx as alternate function */
+ gpio_init_structure.Pin = DISCO_I2C2_SDA_PIN;
+ HAL_GPIO_Init(DISCO_I2C2_SCL_SDA_GPIO_PORT, &gpio_init_structure);
+
+ /*** Configure the I2C peripheral ***/
+ /* Enable I2C clock */
+ DISCO_I2C2_CLK_ENABLE();
+
+ /* Force the I2C peripheral clock reset */
+ DISCO_I2C2_FORCE_RESET();
+
+ /* Release the I2C peripheral clock reset */
+ DISCO_I2C2_RELEASE_RESET();
+
+ /* Enable and set I2C1 Interrupt to a lower priority */
+ HAL_NVIC_SetPriority(DISCO_I2C2_EV_IRQn, 0x05, 0);
+ HAL_NVIC_EnableIRQ(DISCO_I2C2_EV_IRQn);
+
+ /* Enable and set I2C1 Interrupt to a lower priority */
+ HAL_NVIC_SetPriority(DISCO_I2C2_ER_IRQn, 0x05, 0);
+ HAL_NVIC_EnableIRQ(DISCO_I2C2_ER_IRQn);
+}
+
+/**
+ * @brief Initializes I2C HAL.
+ */
+static void I2C1_Init(void)
+{
+ if(HAL_I2C_GetState(&heval_I2c1) == HAL_I2C_STATE_RESET)
+ {
+ heval_I2c1.Instance = I2C1;
+ heval_I2c1.Init.ClockSpeed = I2C1_SCL_FREQ_KHZ;
+ heval_I2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
+ heval_I2c1.Init.OwnAddress1 = 0;
+ heval_I2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+ heval_I2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+ heval_I2c1.Init.OwnAddress2 = 0;
+ heval_I2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+ heval_I2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+
+ /* Init the I2C */
+ I2C1_MspInit();
+ HAL_I2C_Init(&heval_I2c1);
+ }
+}
+
+/**
+ * @brief Initializes I2C HAL.
+ */
+static void I2C2_Init(void)
+{
+ if(HAL_I2C_GetState(&heval_I2c2) == HAL_I2C_STATE_RESET)
+ {
+ heval_I2c2.Instance = I2C2;
+ heval_I2c2.Init.ClockSpeed = I2C2_SCL_FREQ_KHZ;
+ heval_I2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
+ heval_I2c2.Init.OwnAddress1 = 0;
+ heval_I2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+ heval_I2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+ heval_I2c2.Init.OwnAddress2 = 0;
+ heval_I2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+ heval_I2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+
+ /* Init the I2C */
+ I2C2_MspInit();
+ HAL_I2C_Init(&heval_I2c2);
+ }
+}
+
+/**
+ * @brief Writes a single data.
+ * @param Addr: I2C address
+ * @param Reg: Register address
+ * @param Value: Data to be written
+ */
+static void I2C1_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ status = HAL_I2C_Mem_Write(&heval_I2c1,
+ Addr,
+ (uint16_t)Reg,
+ I2C_MEMADD_SIZE_8BIT,
+ &Value,
+ 1,
+ 100);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Execute user timeout callback */
+ I2C1_Error(Addr);
+ }
+}
+
+/**
+ * @brief Reads a single data.
+ * @param Addr: I2C address
+ * @param Reg: Register address
+ * @retval Read data
+ */
+static uint8_t I2C1_Read(uint8_t Addr, uint8_t Reg)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+ uint8_t Value = 0;
+
+ status = HAL_I2C_Mem_Read(&heval_I2c1,
+ Addr,
+ Reg,
+ I2C_MEMADD_SIZE_8BIT,
+ &Value,
+ 1,
+ 1000);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Execute user timeout callback */
+ I2C1_Error(Addr);
+ }
+ return Value;
+}
+
+/**
+ * @brief Reads multiple data.
+ * @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 I2C1_ReadMultiple(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(&heval_I2c1,
+ Addr,
+ (uint16_t)Reg,
+ MemAddress,
+ Buffer,
+ Length,
+ 1000);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* I2C error occured */
+ I2C1_Error(Addr);
+ }
+ return status;
+}
+
+static HAL_StatusTypeDef I2C2_ReadMultiple(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(&heval_I2c2,
+ Addr,
+ (uint16_t)Reg,
+ MemAddress,
+ Buffer,
+ Length,
+ 1000);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* I2C2 error occured */
+ I2C2_Error(Addr);
+ }
+ return status;
+}
+
+/**
+ * @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 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 I2C1_WriteMultiple(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(&heval_I2c1,
+ Addr,
+ (uint16_t)Reg,
+ MemAddress,
+ Buffer,
+ Length,
+ 1000);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initiaize the I2C Bus */
+ I2C1_Error(Addr);
+ }
+ return status;
+}
+
+static HAL_StatusTypeDef I2C2_WriteMultiple(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(&heval_I2c2,
+ Addr,
+ (uint16_t)Reg,
+ MemAddress,
+ Buffer,
+ Length,
+ 1000);
+
+ /* Check the communication status */
+ if(status != HAL_OK)
+ {
+ /* Re-Initiaize the I2C2 Bus */
+ I2C2_Error(Addr);
+ }
+ 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 I2C1_IsDeviceReady(uint16_t DevAddress, uint32_t Trials)
+{
+ return (HAL_I2C_IsDeviceReady(&heval_I2c1, DevAddress, Trials, 1000));
+}
+
+/**
+ * @brief Manages error callback by re-initializing I2C.
+ * @param Addr: I2C Address
+ * @retval None
+ */
+static void I2C1_Error(uint8_t Addr)
+{
+ /* De-initialize the I2C comunication bus */
+ HAL_I2C_DeInit(&heval_I2c1);
+
+ /* Re-Initiaize the I2C comunication bus */
+ I2C1_Init();
+}
+
+static void I2C2_Error(uint8_t Addr)
+{
+ /* De-initialize the I2C2 comunication bus */
+ HAL_I2C_DeInit(&heval_I2c2);
+
+ /* Re-Initiaize the I2C2 comunication bus */
+ I2C2_Init();
+}
+
+/**
+ * @}
+ */
+
+/*******************************************************************************
+ LINK OPERATIONS
+*******************************************************************************/
+
+/********************************* LINK AUDIO *********************************/
+
+/**
+ * @brief Initializes Audio low level.
+ */
+void AUDIO_IO_Init(void)
+{
+ I2C2_Init();
+}
+
+/**
+ * @brief DeInitializes Audio low level.
+ */
+void AUDIO_IO_DeInit(void)
+{
+
+}
+
+/**
+ * @brief Writes a single data.
+ * @param Addr: I2C address
+ * @param Reg: Reg address
+ * @param Value: Data to be written
+ */
+void AUDIO_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+ I2C2_WriteMultiple(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 AUDIO_IO_Read(uint8_t Addr, uint8_t Reg)
+{
+ uint8_t read_value = 0;
+
+ I2C2_ReadMultiple(Addr, (uint16_t) Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&read_value, 1);
+
+ return read_value;
+}
+
+/**
+ * @brief AUDIO Codec delay
+ * @param Delay: Delay in ms
+ */
+void AUDIO_IO_Delay(uint32_t Delay)
+{
+ //HAL_Delay(Delay);
+ wait_ms(Delay);
+}
+
+/******************************** LINK I2C EEPROM *****************************/
+
+/**
+ * @brief Initializes peripherals used by the I2C EEPROM driver.
+ */
+void EEPROM_IO_Init(void)
+{
+ I2C1_Init();
+}
+
+/**
+ * @brief Write 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 (I2C1_WriteMultiple(DevAddress, MemAddress, I2C_MEMADD_SIZE_16BIT, pBuffer, BufferSize));
+}
+
+/**
+ * @brief Read 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 (I2C1_ReadMultiple(DevAddress, MemAddress, I2C_MEMADD_SIZE_16BIT, 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 (I2C1_IsDeviceReady(DevAddress, Trials));
+}
+
+/******************************** LINK TS (TouchScreen) ***********************/
+
+/**
+ * @brief Initialize I2C communication
+ * channel from MCU to TouchScreen (TS).
+ */
+void TS_IO_Init(void)
+{
+ I2C1_Init();
+}
+
+/**
+ * @brief Writes single data with I2C communication
+ * channel from MCU to TouchScreen.
+ * @param Addr: I2C address
+ * @param Reg: Register address
+ * @param Value: Data to be written
+ */
+void TS_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
+{
+ I2C1_Write(Addr, Reg, Value);
+}
+
+/**
+ * @brief Reads single data with I2C communication
+ * channel from TouchScreen.
+ * @param Addr: I2C address
+ * @param Reg: Register address
+ * @retval Read data
+ */
+uint8_t TS_IO_Read(uint8_t Addr, uint8_t Reg)
+{
+ return I2C1_Read(Addr, Reg);
+}
+
+/**
+ * @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 Number of read data
+ */
+uint16_t TS_IO_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
+{
+ return I2C1_ReadMultiple(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 TS_IO_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length)
+{
+ I2C1_WriteMultiple(Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length);
+}
+
+/**
+ * @brief Delay function used in TouchScreen low level driver.
+ * @param Delay: Delay in ms
+ * @retval None
+ */
+void TS_IO_Delay(uint32_t Delay)
+{
+ //HAL_Delay(Delay);
+ wait_ms(Delay);
+}
+
+/**************************** LINK OTM8009A (Display driver) ******************/
+/**
+ * @brief OTM8009A delay
+ * @param Delay: Delay in ms
+ */
+void OTM8009A_IO_Delay(uint32_t Delay)
+{
+ //HAL_Delay(Delay);
+ wait_ms(Delay);
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/