/** ****************************************************************************** * @file stm324x9i_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 STM324x9I-EVAL evaluation * board(MB1045) 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 stm324x9i_eval_io to manage the joystick ------------------------------------------------------------------------------*//* ... */ /* Includes ------------------------------------------------------------------*/ #include "stm324x9i_eval.h" #include "stm324x9i_eval_io.h" /** @defgroup BSP BSP * @{ *//* ... */ /** @defgroup STM324x9I_EVAL STM324x9I EVAL * @{ *//* ... */ /** @defgroup STM324x9I_EVAL_LOW_LEVEL STM324x9I EVAL LOW LEVEL * @{ *//* ... */ /** @defgroup STM324x9I_EVAL_LOW_LEVEL_Private_Defines STM324x9I EVAL LOW LEVEL Private Defines * @{ *//* ... */ /** * @brief STM324x9I EVAL BSP Driver version number V3.0.3 *//* ... */ #define __STM324x9I_EVAL_BSP_VERSION_MAIN (0x03) /*!< [31:24] main version */ #define __STM324x9I_EVAL_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */ #define __STM324x9I_EVAL_BSP_VERSION_SUB2 (0x03) /*!< [15:8] sub2 version */ #define __STM324x9I_EVAL_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */ #define __STM324x9I_EVAL_BSP_VERSION ((__STM324x9I_EVAL_BSP_VERSION_MAIN << 24)\ |(__STM324x9I_EVAL_BSP_VERSION_SUB1 << 16)\ |(__STM324x9I_EVAL_BSP_VERSION_SUB2 << 8 )\ |(__STM324x9I_EVAL_BSP_VERSION_RC))... 5 defines/** * @} *//* ... */ /** @defgroup STM324x9I_EVAL_LOW_LEVEL_Private_Variables STM324x9I 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}; static I2C_HandleTypeDef heval_I2c; /** * @} *//* ... */ /** @defgroup STM324x9I_EVAL_LOW_LEVEL_Private_FunctionPrototypes STM324x9I EVAL LOW LEVEL Private FunctionPrototypes * @{ *//* ... */ static void I2Cx_MspInit(void); 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_ReadMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length); static HAL_StatusTypeDef I2Cx_WriteMultiple(uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length); static HAL_StatusTypeDef I2Cx_IsDeviceReady(uint16_t DevAddress, uint32_t Trials); static void I2Cx_Error(uint8_t Addr); /* 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); void IOE_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length); /* AUDIO IO functions */ void AUDIO_IO_Init(void); void AUDIO_IO_DeInit(void); void AUDIO_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value); uint16_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg); void AUDIO_IO_Delay(uint32_t Delay); /* CAMERA IO functions */ void CAMERA_IO_Init(void); void CAMERA_Delay(uint32_t Delay); void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value); uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg); /* 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 STM324x9I_EVAL_LOW_LEVEL_Private_Functions STM324x9I EVAL LOW LEVEL Private Functions * @{ *//* ... */ /** * @brief This method returns the STM324x9I EVAL BSP Driver revision * @retval version: 0xXYZR (8bits for each decimal, R for RC) *//* ... */ uint32_t BSP_GetVersion(void) { return __STM324x9I_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); HAL_GPIO_WritePin(GPIO_PORT[Led], GPIO_PIN[Led], GPIO_PIN_SET); }{ ... } /** * @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_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 *//* ... */ void BSP_LED_Off(Led_TypeDef Led) { 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 *//* ... */ 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 * @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, 0x00); 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 * @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 IO interrupt acquisition 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) { uint16_t tmp = 0; /* Read the status joystick pins */ tmp = 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 { ... } }{ ... } /** * @brief Check TS3510 touch screen presence * @retval Return 0 if TS3510 is detected, return 1 if not detected *//* ... */ uint8_t BSP_TS3510_IsDetected(void) { HAL_StatusTypeDef status = HAL_OK; uint32_t error = 0; uint8_t a_buffer; uint8_t tmp_buffer[2] = {0x81, 0x08}; /* Prepare for LCD read data */ IOE_WriteMultiple(TS3510_I2C_ADDRESS, 0x8A, tmp_buffer, 2); status = HAL_I2C_Mem_Read(&heval_I2c, TS3510_I2C_ADDRESS, 0x8A, I2C_MEMADD_SIZE_8BIT, &a_buffer, 1, 1000); /* Check the communication status */ if(status != HAL_OK) { error = (uint32_t)HAL_I2C_GetError(&heval_I2c); /* I2C error occurred */ I2Cx_Error(TS3510_I2C_ADDRESS); if(error == HAL_I2C_ERROR_AF) { return 1; }if (error == HAL_I2C_ERROR_AF) { ... } }if (status != HAL_OK) { ... } return 0; }{ ... } /******************************************************************************* 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(); /* Enable and set I2Cx Interrupt to a lower priority */ HAL_NVIC_SetPriority(EVAL_I2Cx_EV_IRQn, 0x0F, 0); HAL_NVIC_EnableIRQ(EVAL_I2Cx_EV_IRQn); /* Enable and set I2Cx Interrupt to a lower priority */ 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 = I2C1; 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_8; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_LOW; GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; HAL_GPIO_Init(GPIOI, &GPIO_InitStruct); /* Enable and set GPIO EXTI Interrupt to the lowest priority */ HAL_NVIC_SetPriority((IRQn_Type)(EXTI9_5_IRQn), 0x0F, 0x0F); HAL_NVIC_EnableIRQ((IRQn_Type)(EXTI9_5_IRQn)); }if (I2C_IT_Enabled == 0) { ... } }{ ... } /** * @brief Writes a single data. * @param Addr: I2C address * @param Reg: Register 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, 100); /* Check the communication status */ if(status != HAL_OK) { /* Execute user timeout callback */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } }{ ... } /** * @brief Reads a single data. * @param Addr: I2C address * @param Reg: Register address * @retval Read data *//* ... */ 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, 1000); /* Check the communication status */ if(status != HAL_OK) { /* Execute user timeout callback */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } return Value; }{ ... } /** * @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; if(Addr == EXC7200_I2C_ADDRESS) { status = HAL_I2C_Master_Receive(&heval_I2c, Addr, Buffer, Length, 1000); }if (Addr == EXC7200_I2C_ADDRESS) { ... } else { status = HAL_I2C_Mem_Read(&heval_I2c, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000); }else { ... } /* Check the communication status */ if(status != HAL_OK) { /* I2C error occurred */ I2Cx_Error(Addr); }if (status != HAL_OK) { ... } 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: 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, 1000); /* Check the communication status */ if(status != HAL_OK) { /* Re-Initialize 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, 1000)); }{ ... } /** * @brief Manages error callback by re-initializing I2C. * @param Addr: I2C Address *//* ... */ static void I2Cx_Error(uint8_t Addr) { /* De-initialize the I2C communication bus */ HAL_I2C_DeInit(&heval_I2c); /* Re-Initialize the I2C communication bus */ I2Cx_Init(); }{ ... } /******************************************************************************* LINK OPERATIONS *******************************************************************************//* ... */ I2C 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: Register 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: Register 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: Register 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, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length); }{ ... } /** * @brief IOE writes multiple data. * @param Addr: I2C address * @param Reg: Register address * @param Buffer: Pointer to data buffer * @param Length: Length of the data *//* ... */ void IOE_WriteMultiple(uint8_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length) { I2Cx_WriteMultiple(Addr, (uint16_t)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 AUDIO *********************************/ /** * @brief Initializes Audio low level. *//* ... */ void AUDIO_IO_Init(void) { I2Cx_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, uint16_t Reg, uint16_t Value) { uint16_t tmp = Value; Value = ((uint16_t)(tmp >> 8) & 0x00FF); Value |= ((uint16_t)(tmp << 8)& 0xFF00); I2Cx_WriteMultiple(Addr, Reg, I2C_MEMADD_SIZE_16BIT,(uint8_t*)&Value, 2); }{ ... } /** * @brief Reads a single data. * @param Addr: I2C address * @param Reg: Reg address * @retval Data to be read *//* ... */ uint16_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg) { uint16_t Read_Value = 0, tmp = 0; I2Cx_ReadMultiple(Addr, Reg, I2C_MEMADD_SIZE_16BIT, (uint8_t*)&Read_Value, 2); tmp = ((uint16_t)(Read_Value >> 8) & 0x00FF); tmp |= ((uint16_t)(Read_Value << 8)& 0xFF00); Read_Value = tmp; return Read_Value; }{ ... } /** * @brief AUDIO Codec delay * @param Delay: Delay in ms *//* ... */ void AUDIO_IO_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } 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: Register 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: Register 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 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 (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)); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */