/** ****************************************************************************** * @file stm324xg_eval.c * @author MCD Application Team * @brief This file provides a set of firmware functions to manage LEDs, * push-buttons and COM ports available on STM324xG-EVAL evaluation * board(MB786) RevB from STMicroelectronics. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* File Info: ------------------------------------------------------------------ User NOTE This driver requires the stm324xG_eval_io.c driver to manage the joystick ------------------------------------------------------------------------------*//* ... */ /* Includes ------------------------------------------------------------------*/ #include "stm324xg_eval.h" #include "stm324xg_eval_io.h" /** @defgroup BSP BSP * @{ *//* ... */ /** @defgroup STM324xG_EVAL STM324xG EVAL * @{ *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL STM324xG EVAL LOW LEVEL * @{ *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL_Private_TypesDefinitions STM324xG EVAL LOW LEVEL Private TypesDefinitions * @{ *//* ... */ typedef struct { __IO uint16_t REG; __IO uint16_t RAM; ...}LCD_CONTROLLER_TypeDef; /** * @} *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL_Private_Defines STM324xG EVAL LOW LEVEL Private Defines * @{ *//* ... */ /** * @brief STM324xG EVAL BSP Driver version number V3.0.4 *//* ... */ #define __STM324xG_EVAL_BSP_VERSION_MAIN (0x03) /*!< [31:24] main version */ #define __STM324xG_EVAL_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */ #define __STM324xG_EVAL_BSP_VERSION_SUB2 (0x04) /*!< [15:8] sub2 version */ #define __STM324xG_EVAL_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */ #define __STM324xG_EVAL_BSP_VERSION ((__STM324xG_EVAL_BSP_VERSION_MAIN << 24)\ |(__STM324xG_EVAL_BSP_VERSION_SUB1 << 16)\ |(__STM324xG_EVAL_BSP_VERSION_SUB2 << 8 )\ |(__STM324xG_EVAL_BSP_VERSION_RC))... #define FMC_BANK3_BASE ((uint32_t)(0x60000000 | 0x08000000)) #define FMC_BANK3 ((LCD_CONTROLLER_TypeDef *) FMC_BANK3_BASE) #define I2C_TIMEOUT 100 /*<! Value of Timeout when I2C communication fails */ 8 defines /** * @} *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL_Private_Variables STM324xG EVAL LOW LEVEL Private Variables * @{ *//* ... */ GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT, LED4_GPIO_PORT...}; const uint16_t GPIO_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN, LED4_PIN...}; GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT, TAMPER_BUTTON_GPIO_PORT, KEY_BUTTON_GPIO_PORT...}; const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN, KEY_BUTTON_PIN...}; const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn, TAMPER_BUTTON_EXTI_IRQn, KEY_BUTTON_EXTI_IRQn...}; USART_TypeDef* COM_USART[COMn] = {EVAL_COM1}; GPIO_TypeDef* COM_TX_PORT[COMn] = {EVAL_COM1_TX_GPIO_PORT}; GPIO_TypeDef* COM_RX_PORT[COMn] = {EVAL_COM1_RX_GPIO_PORT}; const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TX_PIN}; const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RX_PIN}; const uint16_t COM_TX_AF[COMn] = {EVAL_COM1_TX_AF}; const uint16_t COM_RX_AF[COMn] = {EVAL_COM1_RX_AF}; I2C_HandleTypeDef heval_I2c; static uint8_t Is_LCD_IO_Initialized = 0; /** * @} *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL_Private_FunctionPrototypes STM324xG EVAL LOW LEVEL Private FunctionPrototypes * @{ *//* ... */ static void I2Cx_Init(void); static void I2Cx_ITConfig(void); static void I2Cx_Write(uint8_t Addr, uint8_t Reg, uint8_t Value); static uint8_t I2Cx_Read(uint8_t Addr, uint8_t Reg); static HAL_StatusTypeDef I2Cx_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length); static HAL_StatusTypeDef I2Cx_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddress, uint8_t *Buffer, uint16_t Length); static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials); static void I2Cx_Error(uint8_t Addr); static void I2Cx_MspInit(void); static void FSMC_BANK3_WriteData(uint16_t Data); static void FSMC_BANK3_WriteReg(uint8_t Reg); static uint16_t FSMC_BANK3_ReadData(void); static void FSMC_BANK3_Init(void); static void FSMC_BANK3_MspInit(void); /* 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 *Buffer, uint16_t Length); /* LCD IO functions */ void LCD_IO_Init(void); void LCD_IO_WriteData(uint16_t Data); void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size); void LCD_IO_WriteReg(uint8_t Reg); uint16_t LCD_IO_ReadData(uint16_t Reg); /* 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); /* Camera IO functions */ void CAMERA_IO_Init(void); void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value); uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg); void CAMERA_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); /** * @} *//* ... */ /** @defgroup STM324xG_EVAL_LOW_LEVEL_Private_Functions STM324xG EVAL LOW LEVEL Private Functions * @{ *//* ... */ /** * @brief This method returns the STM324xG EVAL BSP Driver revision * @retval version: 0xXYZR (8bits for each decimal, R for RC) *//* ... */ uint32_t BSP_GetVersion(void) { return __STM324xG_EVAL_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 *//* ... */ 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); }{ ... } /** * @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 *//* ... */ 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 LED1 * @arg LED2 * @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: LED to be toggled * This parameter can be one of the following values: * @arg LED1 * @arg LED2 * @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: Button to be configured * This parameter can be one of the following values: * @arg BUTTON_WAKEUP: Wakeup Push Button * @arg BUTTON_TAMPER: Tamper Push Button * @arg BUTTON_KEY: Key Push Button * @arg BUTTON_RIGHT: Joystick Right Push Button * @arg BUTTON_LEFT: Joystick Left Push Button * @arg BUTTON_UP: Joystick Up Push Button * @arg BUTTON_DOWN: Joystick Down Push Button * @arg BUTTON_SEL: Joystick Sel 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 *//* ... */ void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode) { GPIO_InitTypeDef GPIO_InitStruct; /* Enable the BUTTON clock */ BUTTONx_GPIO_CLK_ENABLE(Button); if(Button_Mode == BUTTON_MODE_GPIO) { /* Configure Button pin as input */ GPIO_InitStruct.Pin = BUTTON_PIN[Button]; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FAST; HAL_GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStruct); }if (Button_Mode == BUTTON_MODE_GPIO) { ... } if(Button_Mode == BUTTON_MODE_EXTI) { /* Configure Button pin as input with External interrupt */ GPIO_InitStruct.Pin = BUTTON_PIN[Button]; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FAST; if(Button != BUTTON_WAKEUP) { GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; }if (Button != BUTTON_WAKEUP) { ... } else { GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; }else { ... } 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, 0x0); HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button])); }if (Button_Mode == BUTTON_MODE_EXTI) { ... } }{ ... } /** * @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_TAMPER: Tamper Push Button * @arg BUTTON_KEY: Key Push Button * @arg BUTTON_RIGHT: Joystick Right Push Button * @arg BUTTON_LEFT: Joystick Left Push Button * @arg BUTTON_UP: Joystick Up Push Button * @arg BUTTON_DOWN: Joystick Down Push Button * @arg BUTTON_SEL: Joystick Sel 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]); }{ ... } /** * @brief Configures COM port. * @param COM: COM port to be configured. * This parameter can be one of the following values: * @arg COM1 * @arg COM2 * @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_InitStruct; /* Enable GPIO clock */ EVAL_COMx_TX_GPIO_CLK_ENABLE(COM); EVAL_COMx_RX_GPIO_CLK_ENABLE(COM); /* Enable USART clock */ EVAL_COMx_CLK_ENABLE(COM); /* Configure USART Tx as alternate function */ GPIO_InitStruct.Pin = COM_TX_PIN[COM]; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Speed = GPIO_SPEED_FAST; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Alternate = COM_TX_AF[COM]; HAL_GPIO_Init(COM_TX_PORT[COM], &GPIO_InitStruct); /* Configure USART Rx as alternate function */ GPIO_InitStruct.Pin = COM_RX_PIN[COM]; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Alternate = COM_RX_AF[COM]; HAL_GPIO_Init(COM_RX_PORT[COM], &GPIO_InitStruct); /* USART configuration */ huart->Instance = COM_USART[COM]; HAL_UART_Init(huart); }{ ... } /** * @brief Configures joystick GPIO and EXTI modes. * @param Joy_Mode: Button mode. * This parameter can be one of the following values: * @arg JOY_MODE_GPIO: Joystick pins will be used as simple IOs * @arg JOY_MODE_EXTI: Joystick pins will be connected to EXTI line * with interrupt generation capability * @retval IO_OK: if all initializations are OK. Other value if error. *//* ... */ uint8_t BSP_JOY_Init(JOYMode_TypeDef Joy_Mode) { uint8_t ret = 0; /* Initialize the IO functionalities */ ret = BSP_IO_Init(); /* Configure joystick pins in IT mode */ if(Joy_Mode == JOY_MODE_EXTI) { /* Configure joystick pins in IT mode */ BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_IT_FALLING_EDGE); }if (Joy_Mode == JOY_MODE_EXTI) { ... } return ret; }{ ... } /** * @brief Returns the current joystick status. * @retval Code of the joystick key pressed * This code can be one of the following values: * @arg JOY_NONE * @arg JOY_SEL * @arg JOY_DOWN * @arg JOY_LEFT * @arg JOY_RIGHT * @arg JOY_UP *//* ... */ JOYState_TypeDef BSP_JOY_GetState(void) { uint8_t tmp = 0; /* Read the status joystick pins */ tmp = (uint8_t)BSP_IO_ReadPin(JOY_ALL_PINS); /* Check the pressed keys */ if((tmp & JOY_NONE_PIN) == JOY_NONE) { return(JOYState_TypeDef) JOY_NONE; }if ((tmp & JOY_NONE_PIN) == JOY_NONE) { ... } else if(!(tmp & JOY_SEL_PIN)) { return(JOYState_TypeDef) JOY_SEL; }else if (!(tmp & JOY_SEL_PIN)) { ... } else if(!(tmp & JOY_DOWN_PIN)) { return(JOYState_TypeDef) JOY_DOWN; }else if (!(tmp & JOY_DOWN_PIN)) { ... } else if(!(tmp & JOY_LEFT_PIN)) { return(JOYState_TypeDef) JOY_LEFT; }else if (!(tmp & JOY_LEFT_PIN)) { ... } else if(!(tmp & JOY_RIGHT_PIN)) { return(JOYState_TypeDef) JOY_RIGHT; }else if (!(tmp & JOY_RIGHT_PIN)) { ... } else if(!(tmp & JOY_UP_PIN)) { return(JOYState_TypeDef) JOY_UP; }else if (!(tmp & JOY_UP_PIN)) { ... } else { return(JOYState_TypeDef) JOY_NONE; }else { ... } }{ ... } /******************************************************************************* BUS OPERATIONS *******************************************************************************//* ... */ /**************************** I2C Routines ************************************/ /** * @brief Initializes I2C MSP. *//* ... */ static void I2Cx_MspInit(void) { GPIO_InitTypeDef GPIO_InitStruct; /*** Configure the GPIOs ***/ /* Enable GPIO clock */ EVAL_I2Cx_SCL_SDA_GPIO_CLK_ENABLE(); /* Configure I2C Tx as alternate function */ GPIO_InitStruct.Pin = EVAL_I2Cx_SCL_PIN; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FAST; GPIO_InitStruct.Alternate = EVAL_I2Cx_SCL_SDA_AF; HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &GPIO_InitStruct); /* Configure I2C Rx as alternate function */ GPIO_InitStruct.Pin = EVAL_I2Cx_SDA_PIN; HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &GPIO_InitStruct); /*** Configure the I2C peripheral ***/ /* Enable I2C clock */ EVAL_I2Cx_CLK_ENABLE(); /* Force the I2C peripheral clock reset */ EVAL_I2Cx_FORCE_RESET(); /* Release the I2C peripheral clock reset */ EVAL_I2Cx_RELEASE_RESET(); /* Set priority and enable I2Cx event Interrupt */ HAL_NVIC_SetPriority(EVAL_I2Cx_EV_IRQn, 0x0F, 0); HAL_NVIC_EnableIRQ(EVAL_I2Cx_EV_IRQn); /* Set priority and enable I2Cx error Interrupt */ HAL_NVIC_SetPriority(EVAL_I2Cx_ER_IRQn, 0x0F, 0); HAL_NVIC_EnableIRQ(EVAL_I2Cx_ER_IRQn); }{ ... } /** * @brief Initializes I2C HAL. *//* ... */ static void I2Cx_Init(void) { if(HAL_I2C_GetState(&heval_I2c) == HAL_I2C_STATE_RESET) { heval_I2c.Instance = EVAL_I2Cx; heval_I2c.Init.ClockSpeed = BSP_I2C_SPEED; heval_I2c.Init.DutyCycle = I2C_DUTYCYCLE_2; heval_I2c.Init.OwnAddress1 = 0; heval_I2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; heval_I2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; heval_I2c.Init.OwnAddress2 = 0; heval_I2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; heval_I2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; /* Init the I2C */ I2Cx_MspInit(); HAL_I2C_Init(&heval_I2c); }if (HAL_I2C_GetState(&heval_I2c) == HAL_I2C_STATE_RESET) { ... } }{ ... } /** * @brief Configures I2C Interrupt. *//* ... */ static void I2Cx_ITConfig(void) { static uint8_t I2C_IT_Enabled = 0; GPIO_InitTypeDef GPIO_InitStruct; if(I2C_IT_Enabled == 0) { I2C_IT_Enabled = 1; /* Enable the GPIO EXTI clock */ __GPIOI_CLK_ENABLE(); __SYSCFG_CLK_ENABLE(); GPIO_InitStruct.Pin = GPIO_PIN_2; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FAST; GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; HAL_GPIO_Init(GPIOI, &GPIO_InitStruct); /* Set priority and Enable GPIO EXTI Interrupt */ HAL_NVIC_SetPriority((IRQn_Type)(EXTI2_IRQn), 0x0F, 0); HAL_NVIC_EnableIRQ((IRQn_Type)(EXTI2_IRQn)); }if (I2C_IT_Enabled == 0) { ... } }{ ... } /** * @brief Reads a single data. * @param Addr: I2C address * @param Reg: Reg address * @retval Data to be read *//* ... */ static uint8_t I2Cx_Read(uint8_t Addr, uint8_t Reg) { HAL_StatusTypeDef status = HAL_OK; uint8_t Value = 0; status = HAL_I2C_Mem_Read(&heval_I2c, Addr, Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, I2C_TIMEOUT); /* Check the communication status */ if(status != HAL_OK) { /* Execute user timeout callback */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } return Value; }{ ... } /** * @brief Writes a single data. * @param Addr: I2C address * @param Reg: Reg address * @param Value: Data to be written *//* ... */ static void I2Cx_Write(uint8_t Addr, uint8_t Reg, uint8_t Value) { HAL_StatusTypeDef status = HAL_OK; status = HAL_I2C_Mem_Write(&heval_I2c, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, &Value, 1, I2C_TIMEOUT); /* Check the communication status */ if(status != HAL_OK) { /* I2C error occurred */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } }{ ... } /** * @brief Reads multiple data. * @param Addr: I2C address * @param Reg: Reg address * @param MemAddress Internal memory address * @param Buffer: Pointer to data buffer * @param Length: Length of the data * @retval Number of read data *//* ... */ static HAL_StatusTypeDef I2Cx_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_I2c, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, I2C_TIMEOUT); /* Check the communication status */ if(status != HAL_OK) { /* I2C error occurred */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } return status; }{ ... } /** * @brief Write 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 Internal 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(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_I2c, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, I2C_TIMEOUT); /* Check the communication status */ if(status != HAL_OK) { /* Re-Initiaize the I2C Bus */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } 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(&heval_I2c, DevAddress, Trials, I2C_TIMEOUT)); }{ ... } /** * @brief Manages error callback by re-initializing I2C. * @param Addr: I2C Address *//* ... */ static void I2Cx_Error(uint8_t Addr) { /* De-initialize the IOE communication BUS */ HAL_I2C_DeInit(&heval_I2c); /* Re-Initiaize the IOE communication BUS */ I2Cx_Init(); }{ ... } I2C Routines /*************************** FSMC Routines ************************************/ /** * @brief Initializes FSMC_BANK3 MSP. *//* ... */ static void FSMC_BANK3_MspInit(void) { GPIO_InitTypeDef GPIO_Init_Structure; /* Enable FSMC clock */ __FSMC_CLK_ENABLE(); /* Enable GPIOs clock */ __GPIOD_CLK_ENABLE(); __GPIOE_CLK_ENABLE(); __GPIOF_CLK_ENABLE(); __GPIOG_CLK_ENABLE(); /* Common GPIO configuration */ GPIO_Init_Structure.Mode = GPIO_MODE_AF_PP; GPIO_Init_Structure.Pull = GPIO_PULLUP; GPIO_Init_Structure.Speed = GPIO_SPEED_HIGH; GPIO_Init_Structure.Alternate = GPIO_AF12_FSMC; /* GPIOD configuration */ GPIO_Init_Structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_8 |\ GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 |\ GPIO_PIN_14 | GPIO_PIN_15; HAL_GPIO_Init(GPIOD, &GPIO_Init_Structure); /* GPIOE configuration */ GPIO_Init_Structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_3| GPIO_PIN_4 | GPIO_PIN_7 |\ GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 |\ GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15; HAL_GPIO_Init(GPIOE, &GPIO_Init_Structure); /* GPIOF configuration */ GPIO_Init_Structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2| GPIO_PIN_3 | GPIO_PIN_4 |\ GPIO_PIN_5 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15; HAL_GPIO_Init(GPIOF, &GPIO_Init_Structure); /* GPIOG configuration */ GPIO_Init_Structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2| GPIO_PIN_3 | GPIO_PIN_4 |\ GPIO_PIN_5 | GPIO_PIN_10; HAL_GPIO_Init(GPIOG, &GPIO_Init_Structure); }{ ... } /** * @brief Initializes LCD IO. *//* ... */ static void FSMC_BANK3_Init(void) { SRAM_HandleTypeDef hsram; FSMC_NORSRAM_TimingTypeDef SRAM_Timing; /*** Configure the SRAM Bank 3 ***/ /* Configure IPs */ hsram.Instance = FMC_NORSRAM_DEVICE; hsram.Extended = FMC_NORSRAM_EXTENDED_DEVICE; SRAM_Timing.AddressSetupTime = 5; SRAM_Timing.AddressHoldTime = 1; SRAM_Timing.DataSetupTime = 9; SRAM_Timing.BusTurnAroundDuration = 0; SRAM_Timing.CLKDivision = 2; SRAM_Timing.DataLatency = 2; SRAM_Timing.AccessMode = FSMC_ACCESS_MODE_A; hsram.Init.NSBank = FSMC_NORSRAM_BANK3; hsram.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE; hsram.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM; hsram.Init.MemoryDataWidth = FSMC_NORSRAM_MEM_BUS_WIDTH_16; hsram.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE; hsram.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW; hsram.Init.WrapMode = FSMC_WRAP_MODE_DISABLE; hsram.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS; hsram.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE; hsram.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE; hsram.Init.ExtendedMode = FSMC_EXTENDED_MODE_DISABLE; hsram.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE; hsram.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE; hsram.Init.PageSize = FSMC_PAGE_SIZE_NONE; /* Initialize the SRAM controller */ FSMC_BANK3_MspInit(); HAL_SRAM_Init(&hsram, &SRAM_Timing, &SRAM_Timing); }{ ... } /** * @brief Writes register value. * @param Data: Data to be written *//* ... */ static void FSMC_BANK3_WriteData(uint16_t Data) { /* Write 16-bit Reg */ FMC_BANK3->RAM = Data; }{ ... } /** * @brief Writes register address. * @param Reg: Register to be written *//* ... */ static void FSMC_BANK3_WriteReg(uint8_t Reg) { /* Write 16-bit Index, then write register */ FMC_BANK3->REG = Reg; }{ ... } /** * @brief Reads register value. * @retval Read value *//* ... */ static uint16_t FSMC_BANK3_ReadData(void) { return FMC_BANK3->RAM; }{ ... } /******************************************************************************* LINK OPERATIONS *******************************************************************************//* ... */ FSMC Routines /***************************** LINK IOE ***************************************/ /** * @brief Initializes IOE low level. *//* ... */ void IOE_Init(void) { I2Cx_Init(); }{ ... } /** * @brief Configures IOE low level Interrupt. *//* ... */ void IOE_ITConfig(void) { I2Cx_ITConfig(); }{ ... } /** * @brief IOE writes single data. * @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_Write(Addr, Reg, Value); }{ ... } /** * @brief IOE reads single data. * @param Addr: I2C address * @param Reg: Reg address * @retval Read data *//* ... */ uint8_t IOE_Read(uint8_t Addr, uint8_t Reg) { return I2Cx_Read(Addr, Reg); }{ ... } /** * @brief IOE reads multiple data. * @param Addr: I2C address * @param Reg: Reg address * @param Buffer: Pointer to data buffer * @param Length: Length of the data * @retval Number of read data *//* ... */ uint16_t IOE_ReadMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length) { return I2Cx_ReadMultiple(Addr, Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length); }{ ... } /** * @brief IOE delay. * @param Delay: Delay in ms *//* ... */ void IOE_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } LINK IOE /********************************* LINK LCD ***********************************/ /** * @brief Initializes LCD low level. *//* ... */ void LCD_IO_Init(void) { if(Is_LCD_IO_Initialized == 0) { Is_LCD_IO_Initialized = 1; FSMC_BANK3_Init(); }if (Is_LCD_IO_Initialized == 0) { ... } }{ ... } /** * @brief Writes data on LCD data register. * @param Data: Data to be written *//* ... */ void LCD_IO_WriteData(uint16_t Data) { /* Write 16-bit Reg */ FSMC_BANK3_WriteData(Data); }{ ... } /** * @brief Write register value. * @param pData Pointer on the register value * @param Size Size of byte to transmit to the register *//* ... */ void LCD_IO_WriteMultipleData(uint8_t *pData, uint32_t Size) { uint32_t counter; uint16_t *ptr = (uint16_t *) pData; for (counter = 0; counter < Size; counter+=2) { /* Write 16-bit Reg */ FSMC_BANK3_WriteData(*ptr); ptr++; }for (counter = 0; counter < Size; counter+=2) { ... } }{ ... } /** * @brief Writes register on LCD register. * @param Reg: Register to be written *//* ... */ void LCD_IO_WriteReg(uint8_t Reg) { /* Write 16-bit Index, then Write Reg */ FSMC_BANK3_WriteReg(Reg); }{ ... } /** * @brief Reads data from LCD data register. * @param Reg: Register to be read * @retval Read data. *//* ... */ uint16_t LCD_IO_ReadData(uint16_t Reg) { FSMC_BANK3_WriteReg(Reg); /* Read 16-bit Reg */ return FSMC_BANK3_ReadData(); }{ ... } LINK LCD /********************************* LINK AUDIO *********************************/ /** * @brief Initializes Audio low level. *//* ... */ void AUDIO_IO_Init(void) { I2Cx_Init(); }{ ... } /** * @brief DeInitializes Audio low level. * @note This function is intentionally kept empty, user should define it. *//* ... */ 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) { I2Cx_Write(Addr, Reg, Value); }{ ... } /** * @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) { return I2Cx_Read(Addr, Reg); }{ ... } LINK AUDIO /***************************** LINK CAMERA ************************************/ /** * @brief Initializes Camera low level. *//* ... */ void CAMERA_IO_Init(void) { I2Cx_Init(); }{ ... } /** * @brief Camera writes single data. * @param Addr: I2C address * @param Reg: Reg address * @param Value: Data to be written *//* ... */ void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value) { I2Cx_Write(Addr, Reg, Value); }{ ... } /** * @brief Camera reads single data. * @param Addr: I2C address * @param Reg: Reg address * @retval Read data *//* ... */ uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg) { return I2Cx_Read(Addr, Reg); }{ ... } /** * @brief Camera delay. * @param Delay: Delay in ms *//* ... */ void CAMERA_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } LINK CAMERA /******************************** LINK I2C EEPROM *****************************/ /** * @brief Initializes peripherals used by the I2C EEPROM driver. *//* ... */ void EEPROM_IO_Init(void) { I2Cx_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 (I2Cx_WriteMultiple(DevAddress, MemAddress, I2C_MEMADD_SIZE_16BIT, 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_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 (I2Cx_IsDeviceReady(DevAddress, Trials)); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */