/** ****************************************************************************** * @file stm32469i_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 STM32469I-EVAL evaluation * board(MB1165) RevA/B 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 stm32469i_eval_io to manage the joystick ------------------------------------------------------------------------------*//* ... */ /* Includes ------------------------------------------------------------------*/ #include "stm32469i_eval.h" #if defined(USE_IOEXPANDER) #include "stm32469i_eval_io.h" #endif /* USE_IOEXPANDER */ /** @defgroup BSP BSP * @{ *//* ... */ /** @defgroup STM32469I_EVAL STM32469I EVAL * @{ *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL STM32469I EVAL LOW LEVEL * @{ *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL_Private_TypesDefinitions STM32469I EVAL LOW LEVEL Private TypesDefinitions * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL_Private_Defines STM32469I EVAL LOW LEVEL Private Defines * @{ *//* ... */ /** * @brief STM32469I EVAL BSP Driver version number V2.1.2 *//* ... */ #define __STM32469I_EVAL_BSP_VERSION_MAIN (0x02) /*!< [31:24] main version */ #define __STM32469I_EVAL_BSP_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */ #define __STM32469I_EVAL_BSP_VERSION_SUB2 (0x02) /*!< [15:8] sub2 version */ #define __STM32469I_EVAL_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */ #define __STM32469I_EVAL_BSP_VERSION ((__STM32469I_EVAL_BSP_VERSION_MAIN << 24)\ |(__STM32469I_EVAL_BSP_VERSION_SUB1 << 16)\ |(__STM32469I_EVAL_BSP_VERSION_SUB2 << 8 )\ |(__STM32469I_EVAL_BSP_VERSION_RC))... 5 defines/** * @} *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL_Private_Macros STM32469I EVAL LOW LEVEL Private Macros * @{ *//* ... */ /** * @} *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL_Private_Variables STM32469I EVAL LOW LEVEL Private Variables * @{ *//* ... */ const uint32_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 STM32469I_EVAL_LOW_LEVEL_Private_FunctionPrototypes STM32469I EVAL LOW LEVEL Private FunctionPrototypes * @{ *//* ... */ static void I2Cx_MspInit(void); static void I2Cx_Init(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); #if defined(USE_IOEXPANDER) /* MFX IO functions */ void MFX_IO_Init(void); void MFX_IO_DeInit(void); void MFX_IO_ITConfig(void); void MFX_IO_Delay(uint32_t Delay); void MFX_IO_Write(uint16_t Addr, uint8_t Reg, uint8_t Value); uint8_t MFX_IO_Read(uint16_t Addr, uint8_t Reg); uint16_t MFX_IO_ReadMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length); void MFX_IO_Wakeup(void); void MFX_IO_EnableWakeupPin(void);/* ... */ #endif /* USE_IOEXPANDER */ /* 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, uint16_t Reg, uint16_t Value); uint16_t CAMERA_IO_Read(uint8_t Addr, uint16_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); /* 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_EVAL_BSP_Public_Functions STM32469I EVAL BSP Public Functions * @{ *//* ... */ /** * @brief This method returns the STM32469I EVAL BSP Driver revision * @retval version: 0xXYZR (8bits for each decimal, R for RC) *//* ... */ uint32_t BSP_GetVersion(void) { return __STM32469I_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) { #if !defined(USE_STM32469I_EVAL_REVA) /* Eval Rev B and beyond : leds are directly connected to MCU o PK3, 4, 5, 6 */ GPIO_InitTypeDef gpio_init_structure; /* On RevB LED1, LED2, LED3 and LED4 are on GPIO */ if (Led <= LED4) { /* Enable the GPIO_LED clock */ LEDx_GPIO_CLK_ENABLE(); /* 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; HAL_GPIO_Init(LEDx_GPIO_PORT, &gpio_init_structure); /* By default, turn off LED by setting a high level on corresponding GPIO */ HAL_GPIO_WritePin(LEDx_GPIO_PORT, GPIO_PIN[Led], GPIO_PIN_SET); }if (Led <= LED4) { ... } /* ... */#else #if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */ /* Initialize the IO functionalities */ BSP_IO_Init(); /* the output mode choices shall be extended to PushPull / PullUp*/ BSP_IO_ConfigPin(GPIO_PIN[Led], IO_MODE_OUTPUT_PP_PU); BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_SET);/* ... */ #endif /* USE_IOEXPANDER */ /* ... */ #endif /* USE_STM32469I_EVAL_REVA */ }{ ... } /** * @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 *//* ... */ void BSP_LED_DeInit(Led_TypeDef Led) { #if !defined(USE_STM32469I_EVAL_REVA) /* Eval Rev B and beyond */ GPIO_InitTypeDef gpio_init_structure; /* On RevB LED1 LED2 LED3 and LED4 are on GPIO PK3, 4, 5, 6 */ if (Led <= LED4) { /* Turn off LED */ HAL_GPIO_WritePin(LEDx_GPIO_PORT, GPIO_PIN[Led], GPIO_PIN_RESET); /* DeInit the GPIO_LED pin */ gpio_init_structure.Pin = GPIO_PIN[Led]; HAL_GPIO_DeInit(LEDx_GPIO_PORT, gpio_init_structure.Pin); }if (Led <= LED4) { ... } /* ... */#else #if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */ /* GPIO_PIN[Led] depends on the board revision: */ /* - in case of RevA all leds are on IOEXPANDER (Mfx) */ BSP_IO_ConfigPin(GPIO_PIN[Led], IO_MODE_OFF);/* ... */ #endif /* USE_IOEXPANDER */ /* ... */ #endif /* USE_STM32469I_EVAL_REVA */ }{ ... } /** * @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) { #if !defined(USE_STM32469I_EVAL_REVA) /* Eval Rev B and beyond */ /* On RevB LED1 LED2 LED3 and LED4 are on GPIO PK3, 4, 5, 6 */ if (Led <= LED4) { HAL_GPIO_WritePin(LEDx_GPIO_PORT, GPIO_PIN[Led], GPIO_PIN_RESET); }if (Led <= LED4) { ... } /* ... */#else #if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */ /* GPIO_PIN[Led] depends on the board revision: */ /* - in case of RevA all leds are on IOEXPANDER (Mfx) */ BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_RESET);/* ... */ #endif /* USE_IOEXPANDER */ /* ... */ #endif /* USE_STM32469I_EVAL_REVA */ }{ ... } /** * @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) { #if !defined(USE_STM32469I_EVAL_REVA) /* Eval Rev B and beyond */ /* On RevB LED1 LED2 LED3 and LED4 are on GPIO PK3, 4, 5, 6 */ if (Led <= LED4) { HAL_GPIO_WritePin(LEDx_GPIO_PORT, GPIO_PIN[Led], GPIO_PIN_SET); }if (Led <= LED4) { ... } /* ... */#else #if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */ /* GPIO_PIN[Led] depends on the board revision: */ /* - in case of RevA all leds are on IOEXPANDER (Mfx) */ BSP_IO_WritePin(GPIO_PIN[Led], BSP_IO_PIN_SET);/* ... */ #endif /* USE_IOEXPANDER */ /* ... */ #endif /* USE_STM32469I_EVAL_REVA */ }{ ... } /** * @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) { #if !defined(USE_STM32469I_EVAL_REVA) /* Eval Rev B and beyond */ /* On RevB LED1 LED2 LED3 and LED4 are on GPIO PK3, 4, 5, 6 */ if (Led <= LED4) { HAL_GPIO_TogglePin(LEDx_GPIO_PORT, GPIO_PIN[Led]); }if (Led <= LED4) { ... } /* ... */#else #if defined(USE_IOEXPANDER) /* (USE_IOEXPANDER always defined for RevA) */ /* GPIO_PIN[Led] depends on the board revision: */ /* - in case of RevA all leds are on IOEXPANDER (Mfx) */ BSP_IO_TogglePin(GPIO_PIN[Led]);/* ... */ #endif /* USE_IOEXPANDER */ /* ... */ #endif /* USE_STM32469I_EVAL_REVA */ }{ ... } /** * @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_init_structure; /* Enable the BUTTON clock */ BUTTONx_GPIO_CLK_ENABLE(Button); 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_GPIO) { ... } 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; if(Button != BUTTON_WAKEUP) { gpio_init_structure.Mode = GPIO_MODE_IT_FALLING; }if (Button != BUTTON_WAKEUP) { ... } else { gpio_init_structure.Mode = GPIO_MODE_IT_RISING; }else { ... } 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])); }if (Button_Mode == BUTTON_MODE_EXTI) { ... } }{ ... } /** * @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_TAMPER: Tamper Push Button * @note PB DeInit does not disable the GPIO clock *//* ... */ void BSP_PB_DeInit(Button_TypeDef Button) { GPIO_InitTypeDef gpio_init_structure; gpio_init_structure.Pin = BUTTON_PIN[Button]; HAL_NVIC_DisableIRQ((IRQn_Type)(BUTTON_IRQn[Button])); HAL_GPIO_DeInit(BUTTON_PORT[Button], gpio_init_structure.Pin); }{ ... } /** * @brief Returns the selected button state. * @param Button: Button to be checked * This parameter can be one of the following values: * @arg BUTTON_WAKEUP: Wakeup Push Button * @arg BUTTON_TAMPER: Tamper 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_init_structure; /* Enable GPIO clock of GPIO port supporting COM_TX and COM_RX pins */ EVAL_COMx_TX_RX_GPIO_CLK_ENABLE(COM); /* Enable USART clock */ EVAL_COMx_CLK_ENABLE(COM); /* Configure USART Tx as alternate function */ gpio_init_structure.Pin = COM_TX_PIN[COM]; gpio_init_structure.Mode = GPIO_MODE_AF_PP; gpio_init_structure.Pull = GPIO_PULLUP; gpio_init_structure.Speed = GPIO_SPEED_HIGH; gpio_init_structure.Alternate = COM_TX_AF[COM]; HAL_GPIO_Init(COM_TX_PORT[COM], &gpio_init_structure); /* Configure USART Rx as alternate function */ gpio_init_structure.Pin = COM_RX_PIN[COM]; HAL_GPIO_Init(COM_RX_PORT[COM], &gpio_init_structure); /* USART configuration */ huart->Instance = COM_USART[COM]; HAL_UART_Init(huart); }{ ... } /** * @brief DeInit COM port. * @param COM: COM port to be configured. * This parameter can be one of the following values: * @arg COM1 * @arg COM2 * @param huart: Pointer to a UART_HandleTypeDef structure that contains the * configuration information for the specified USART peripheral. *//* ... */ void BSP_COM_DeInit(COM_TypeDef COM, UART_HandleTypeDef *huart) { /* USART configuration */ huart->Instance = COM_USART[COM]; HAL_UART_DeInit(huart); /* Enable USART clock */ EVAL_COMx_CLK_DISABLE(COM); /* DeInit GPIO pins can be done in the application (by surcharging this __weak function) *//* ... */ /* GPOI pins clock, FMC clock and DMA clock can be shut down in the applic by surcgarging this __weak function *//* ... */ }{ ... } #if defined(USE_IOEXPANDER) /** * @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_LOW_LEVEL_PU); }if (Joy_Mode == JOY_MODE_EXTI) { ... } else { BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_INPUT_PU); }else { ... } return ret; }{ ... } /** * @brief DeInit joystick GPIOs. * @note JOY DeInit does not disable the Mfx, just set the Mfx pins in Off mode *//* ... */ void BSP_JOY_DeInit() { BSP_IO_ConfigPin(JOY_ALL_PINS, IO_MODE_OFF); }{ ... } /** * @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 pin_status = 0; /* Read the status joystick pins */ pin_status = BSP_IO_ReadPin(JOY_ALL_PINS); /* Check the pressed keys */ if((pin_status & JOY_NONE_PIN) == JOY_NONE) { return(JOYState_TypeDef) JOY_NONE; }if ((pin_status & JOY_NONE_PIN) == JOY_NONE) { ... } else if(!(pin_status & JOY_SEL_PIN)) { return(JOYState_TypeDef) JOY_SEL; }else if (!(pin_status & JOY_SEL_PIN)) { ... } else if(!(pin_status & JOY_DOWN_PIN)) { return(JOYState_TypeDef) JOY_DOWN; }else if (!(pin_status & JOY_DOWN_PIN)) { ... } else if(!(pin_status & JOY_LEFT_PIN)) { return(JOYState_TypeDef) JOY_LEFT; }else if (!(pin_status & JOY_LEFT_PIN)) { ... } else if(!(pin_status & JOY_RIGHT_PIN)) { return(JOYState_TypeDef) JOY_RIGHT; }else if (!(pin_status & JOY_RIGHT_PIN)) { ... } else if(!(pin_status & JOY_UP_PIN)) { return(JOYState_TypeDef) JOY_UP; }else if (!(pin_status & JOY_UP_PIN)) { ... } else { return(JOYState_TypeDef) JOY_NONE; }else { ... } }{ ... } #endif/* ... */ /* USE_IOEXPANDER */ /** * @} *//* ... */ /** @defgroup STM32469I_EVAL_LOW_LEVEL_Private_Functions STM32469I EVAL LOW LEVEL Private Functions * @{ *//* ... */ /******************************************************************************* BUS OPERATIONS *******************************************************************************//* ... */ /******************************* I2C Routines *********************************/ /** * @brief Initializes I2C MSP. *//* ... */ static void I2Cx_MspInit(void) { GPIO_InitTypeDef gpio_init_structure; /*** Configure the GPIOs ***/ /* Enable GPIO clock */ EVAL_I2Cx_SCL_SDA_GPIO_CLK_ENABLE(); /* Configure I2C Tx as alternate function */ gpio_init_structure.Pin = EVAL_I2Cx_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 = EVAL_I2Cx_SCL_SDA_AF; HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure); /* Configure I2C Rx as alternate function */ gpio_init_structure.Pin = EVAL_I2Cx_SDA_PIN; HAL_GPIO_Init(EVAL_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure); /*** 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, 0x05, 0); HAL_NVIC_EnableIRQ(EVAL_I2Cx_EV_IRQn); /* Enable and set I2Cx Interrupt to a lower priority */ HAL_NVIC_SetPriority(EVAL_I2Cx_ER_IRQn, 0x05, 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 = I2C_SCL_FREQ_KHZ; 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_DISABLE; heval_I2c.Init.OwnAddress2 = 0; heval_I2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; heval_I2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; /* Init the I2C */ I2Cx_MspInit(); HAL_I2C_Init(&heval_I2c); }if (HAL_I2C_GetState(&heval_I2c) == HAL_I2C_STATE_RESET) { ... } }{ ... } /** * @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: memory address * @param Buffer: Pointer to data buffer * @param Length: Length of the data * @retval HAL status *//* ... */ 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, 1000); /* 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: 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-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, 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-Initiaize 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) { static uint8_t IOE_IT_Enabled = 0; /* GPIO_InitTypeDef GPIO_InitStruct; */ if(IOE_IT_Enabled == 0) { IOE_IT_Enabled = 1; /* to be implemented */ }if (IOE_IT_Enabled == 0) { ... } }{ ... } /** * @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); }{ ... } #if defined(USE_IOEXPANDER) /********************************* LINK MFX ***********************************/ /** * @brief Initializes MFX low level. *//* ... */ void MFX_IO_Init(void) { I2Cx_Init(); }{ ... } /** * @brief DeInitializes MFX low level. *//* ... */ void MFX_IO_DeInit(void) { }{ ... } /** * @brief Configures MFX low level interrupt. *//* ... */ void MFX_IO_ITConfig(void) { static uint8_t MFX_IO_IT_Enabled = 0; GPIO_InitTypeDef gpio_init_structure; if(MFX_IO_IT_Enabled == 0) { MFX_IO_IT_Enabled = 1; /* Enable the GPIO EXTI clock */ __HAL_RCC_GPIOI_CLK_ENABLE(); __HAL_RCC_SYSCFG_CLK_ENABLE(); gpio_init_structure.Pin = GPIO_PIN_8; gpio_init_structure.Pull = GPIO_NOPULL; gpio_init_structure.Speed = GPIO_SPEED_LOW; gpio_init_structure.Mode = GPIO_MODE_IT_RISING; HAL_GPIO_Init(GPIOI, &gpio_init_structure); /* 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 (MFX_IO_IT_Enabled == 0) { ... } }{ ... } /** * @brief MFX writes single data. * @param Addr: I2C address * @param Reg: Register address * @param Value: Data to be written *//* ... */ void MFX_IO_Write(uint16_t Addr, uint8_t Reg, uint8_t Value) { I2Cx_Write((uint8_t) Addr, Reg, Value); }{ ... } /** * @brief MFX reads single data. * @param Addr: I2C address * @param Reg: Register address * @retval Read data *//* ... */ uint8_t MFX_IO_Read(uint16_t Addr, uint8_t Reg) { return I2Cx_Read((uint8_t) Addr, Reg); }{ ... } /** * @brief MFX 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 MFX_IO_ReadMultiple(uint16_t Addr, uint8_t Reg, uint8_t *Buffer, uint16_t Length) { return I2Cx_ReadMultiple((uint8_t)Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT, Buffer, Length); }{ ... } /** * @brief MFX delay * @param Delay: Delay in ms *//* ... */ void MFX_IO_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } /** * @brief Used by Lx family but requested for MXF component compatibility. *//* ... */ void MFX_IO_Wakeup(void) { }{ ... } /** * @brief Used by Lx family but requested for MXF component compatibility. *//* ... */ void MFX_IO_EnableWakeupPin(void) { }{ ... } /* ... */#endif /* USE_IOEXPANDER */ /********************************* 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, uint16_t Reg, uint16_t Value) { uint16_t tmp = Value; if(Addr == CAMERA_I2C_ADDRESS_2) { I2Cx_WriteMultiple(Addr, Reg, I2C_MEMADD_SIZE_16BIT,(uint8_t*)&Value, 1); }if (Addr == CAMERA_I2C_ADDRESS_2) { ... } else { /* For S5K5CAG sensor, 16 bits accesses are used */ Value = ((uint16_t)(tmp >> 8) & 0x00FF); Value |= ((uint16_t)(tmp << 8)& 0xFF00); I2Cx_WriteMultiple(Addr, Reg, I2C_MEMADD_SIZE_16BIT,(uint8_t*)&Value, 2); }else { ... } }{ ... } /** * @brief Camera reads single data. * @param Addr: I2C address * @param Reg: Register address * @retval Read data *//* ... */ uint16_t CAMERA_IO_Read(uint8_t Addr, uint16_t Reg) { uint16_t read_value = 0, tmp = 0; if(Addr == CAMERA_I2C_ADDRESS_2) { I2Cx_ReadMultiple(Addr , Reg, I2C_MEMADD_SIZE_16BIT, (uint8_t*)&read_value, 1); }if (Addr == CAMERA_I2C_ADDRESS_2) { ... } else { /* For S5K5CAG sensor, 16 bits accesses are used */ 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; }else { ... } return read_value; }{ ... } /** * @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)); }{ ... } LINK I2C EEPROM /******************************** LINK TS (TouchScreen) *****************************/ /** * @brief Initialize I2C communication * channel from MCU to TouchScreen (TS). *//* ... */ void TS_IO_Init(void) { I2Cx_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) { I2Cx_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 I2Cx_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 I2Cx_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 *//* ... */ void TS_IO_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 Delay function used in TouchScreen low level driver. * @param Delay: Delay in ms *//* ... */ void TS_IO_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } LINK TS (TouchScreen) /**************************** LINK OTM8009A (Display driver) ******************/ /** * @brief OTM8009A delay * @param Delay: Delay in ms *//* ... */ void OTM8009A_IO_Delay(uint32_t Delay) { HAL_Delay(Delay); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */