Как запрограммировать I2C в HAL через прерывание?

Тема в разделе "STM8/STM32", создана пользователем bookmender, 4 дек 2019.

  1. bookmender

    bookmender Гость

    Сообщения:
    4
    Симпатии:
    0
    Здравствуйте.

    Вопрос, собственно, в теме. А я вот не очень )). Если конкретнее, то мне нужно, чтобы Nucleo (STM32F303RE) будучи мастером получал бы от EVAL-AD7746EBZ (слейв) данные. Хочу так же подключить EEPROM(M24-M01-RMN6P) через I2C.

    На гитхабе наткнулся на код (см. ниже), но если честно, не очень понимаю, как его истолковать и применить для моей задачи. Код для STM32F4, но хотелось бы думать, что подойдет и мне для STM32F3.

    Заранее спасибо
     
  2. bookmender

    bookmender Гость

    Сообщения:
    4
    Симпатии:
    0
    Код:
    /**
      ******************************************************************************
      * @file    I2C/I2C_TwoBoards_AdvComIT/Inc/main.h
      * @author  MCD Application Team
      * @version V1.1.0
      * @date    26-June-2014
      * @brief   Header for main.c module
      ******************************************************************************
      * @attention
      *
      * <h2><center>&copy; COPYRIGHT(c) 2014 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.
      *
      ******************************************************************************
      */
    
    /* Define to prevent recursive inclusion -------------------------------------*/
    #ifndef __MAIN_H
    #define __MAIN_H
    
    /* Includes ------------------------------------------------------------------*/
    #include "stm32f4xx_hal.h"
    #include "stm32f4_discovery.h"
    
    /* Exported types ------------------------------------------------------------*/
    /* Exported constants --------------------------------------------------------*/
    /* User can use this section to tailor I2Cx/I2Cx instance used and associated
       resources */
    /* Definition for I2Cx clock resources */
    #define I2Cx                             I2C1
    #define I2Cx_CLK_ENABLE()                __I2C1_CLK_ENABLE()
    #define I2Cx_SDA_GPIO_CLK_ENABLE()       __GPIOB_CLK_ENABLE()
    #define I2Cx_SCL_GPIO_CLK_ENABLE()       __GPIOB_CLK_ENABLE()
    
    #define I2Cx_FORCE_RESET()               __I2C1_FORCE_RESET()
    #define I2Cx_RELEASE_RESET()             __I2C1_RELEASE_RESET()
    
    /* Definition for I2Cx Pins */
    #define I2Cx_SCL_PIN                    GPIO_PIN_6
    #define I2Cx_SCL_GPIO_PORT              GPIOB
    #define I2Cx_SCL_AF                     GPIO_AF4_I2C1
    #define I2Cx_SDA_PIN                    GPIO_PIN_9
    #define I2Cx_SDA_GPIO_PORT              GPIOB
    #define I2Cx_SDA_AF                     GPIO_AF4_I2C1
    
    /* Definition for I2Cx's NVIC */
    #define I2Cx_EV_IRQn                    I2C1_EV_IRQn
    #define I2Cx_EV_IRQHandler              I2C1_EV_IRQHandler
    #define I2Cx_ER_IRQn                    I2C1_ER_IRQn
    #define I2Cx_ER_IRQHandler              I2C1_ER_IRQHandler
    
    /* Size of Transmission buffer */
    #define TXBUFFERSIZE                      (COUNTOF(aTxBuffer) - 1)
    /* Size of Reception buffer */
    #define RXBUFFERSIZE                      TXBUFFERSIZE
    
    /* Exported macro ------------------------------------------------------------*/
    #define COUNTOF(__BUFFER__)   (sizeof(__BUFFER__) / sizeof(*(__BUFFER__)))
    /* Exported functions ------------------------------------------------------- */
    
    #endif /* __MAIN_H */
    
    /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
    
    --- Сообщения объединены, 4 дек 2019 ---
    Код:
    
    /********************************************************************************
      * @file    I2C/I2C_TwoBoards_AdvComIT/Src/main.c
      * @author  MCD Application Team
      * @version V1.1.0
      * @date    26-June-2014
      * @brief   This sample code shows how to use STM32F4xx I2C HAL API to transmit
      *          and receive data buffer with a communication process based on
      *          IT transfer.
      *          The communication is done using 2 Boards.
      ******************************************************************************
      * @attention
      *
      * <h2><center>&copy; COPYRIGHT(c) 2014 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 "main.h"
    
    /** @addtogroup STM32F4xx_HAL_Examples
      * @{
      */
    
    /** @addtogroup I2C_TwoBoards_AdvComIT
      * @{
      */
    
    /* Private typedef -----------------------------------------------------------*/
    /* Private define ------------------------------------------------------------*/
    /* Private macro -------------------------------------------------------------*/
    /* Uncomment this line to use the board as master, if not it is used as slave */
    #define MASTER_BOARD
    #define I2C_ADDRESS        0x3E
    #define MASTER_REQ_READ    0x12
    #define MASTER_REQ_WRITE   0x34
    
    /* Private variables ---------------------------------------------------------*/
    /* I2C handler declaration */
    I2C_HandleTypeDef I2CxHandle;
    
    /* Buffer used for transmission */
    uint8_t aTxBuffer[] = " ****I2C_TwoBoards advanced communication based on IT****  ****I2C_TwoBoards advanced communication based on IT****  ****I2C_TwoBoards advanced communication based on IT**** ";
    
    /* Buffer used for reception */
    uint8_t aRxBuffer[RXBUFFERSIZE];
    uint16_t hTxNumData = 0, hRxNumData = 0;
    uint8_t bTransferRequest = 0;
    
    /* Private function prototypes -----------------------------------------------*/
    static void SystemClock_Config(void);
    static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength);
    static void Flush_Buffer(uint8_t* pBuffer, uint16_t BufferLength);
    static void Error_Handler(void);
    
    /* Private functions ---------------------------------------------------------*/
    
    /**
      * @brief  Main program
      * @param  None
      * @retval None
      */
    int main(void)
    {
      /* STM32F4xx HAL library initialization:
           - Configure the Flash prefetch, instruction and Data caches
           - Configure the Systick to generate an interrupt each 1 msec
           - Set NVIC Group Priority to 4
           - Global MSP (MCU Support Package) initialization
         */
      HAL_Init();
    
      /* Configure LED4 and LED5 */
      BSP_LED_Init(LED4);
      BSP_LED_Init(LED5);
    
      /* Configure the system clock to 168 Mhz */
      SystemClock_Config();
    
      /*##-1- Configure the I2C peripheral #######################################*/
      I2CxHandle.Instance             = I2Cx;
      I2CxHandle.Init.AddressingMode  = I2C_ADDRESSINGMODE_7BIT;
      I2CxHandle.Init.ClockSpeed      = 400000;
      I2CxHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
      I2CxHandle.Init.DutyCycle       = I2C_DUTYCYCLE_16_9;
      I2CxHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
      I2CxHandle.Init.NoStretchMode   = I2C_NOSTRETCH_DISABLED;
      I2CxHandle.Init.OwnAddress1     = I2C_ADDRESS;
      I2CxHandle.Init.OwnAddress2     = 0;
    
      if(HAL_I2C_Init(&I2CxHandle) != HAL_OK)
      {
        /* Initialization Error */
        Error_Handler();
      }
    
    #ifdef MASTER_BOARD
      /* Configure User Button */
      BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
    
      /* Wait for User Button press before starting the Communication */
      while (BSP_PB_GetState(BUTTON_KEY) != 1)
      {
      }
    
      /* Wait for User Button release before starting the Communication */
      while (BSP_PB_GetState(BUTTON_KEY) != 0)
      {
      }
    
    
    
  3. bookmender

    bookmender Гость

    Сообщения:
    4
    Симпатии:
    0
    Код:
    while(1)
      {
        /* Initialize number of data variables */
        hTxNumData = TXBUFFERSIZE;
        hRxNumData = RXBUFFERSIZE;
    
        /* Update bTransferRequest to send buffer write request for Slave */
        bTransferRequest = MASTER_REQ_WRITE;
    
        /*##-2- Master sends write request for slave #############################*/
        while(HAL_I2C_Master_Transmit_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)&bTransferRequest, 1)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /*##-3- Master sends number of data to be written ########################*/
        while(HAL_I2C_Master_Transmit_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)&hTxNumData, 2)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /*##-4- Master sends aTxBuffer to slave ##################################*/
        while(HAL_I2C_Master_Transmit_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)aTxBuffer, TXBUFFERSIZE)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /* Update bTransferRequest to send buffer read request for Slave */
        bTransferRequest = MASTER_REQ_READ;
    
        /*##-5- Master sends read request for slave ##############################*/
        while(HAL_I2C_Master_Transmit_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)&bTransferRequest, 1)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /*##-6- Master sends number of data to be read ###########################*/
        while(HAL_I2C_Master_Transmit_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)&hRxNumData, 2)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /*##-7- Master receives aRxBuffer from slave #############################*/
        while(HAL_I2C_Master_Receive_IT(&I2CxHandle, (uint16_t)I2C_ADDRESS, (uint8_t*)aRxBuffer, RXBUFFERSIZE)!= HAL_OK)
        {
          /* Error_Handler() function is called when Timout error occurs.
             When Acknowledge failure ocucurs (Slave don't acknowledge it's address)
             Master restarts communication */
          if (HAL_I2C_GetError(&I2CxHandle) != HAL_I2C_ERROR_AF)
          {
            Error_Handler();
          }
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /* Check correctness of received buffer ##################################*/
        if(Buffercmp((uint8_t*)aTxBuffer,(uint8_t*)aRxBuffer,hRxNumData))
        {
          /* Processing Error */
          Error_Handler();
        }
    
        /* Flush Rx buffers */
        Flush_Buffer((uint8_t*)aRxBuffer,RXBUFFERSIZE);
    
        /* Toggle LED4 */
        BSP_LED_Toggle(LED4);
    
        /* This delay permit the user to see LED4 toggling */
        HAL_Delay(25);
      }
    
  4. bookmender

    bookmender Гость

    Сообщения:
    4
    Симпатии:
    0
    Код:
    #else
      while(1)
      {
        /* Initialize number of data variables */
        hTxNumData = 0;
        hRxNumData = 0;
    
        /*##-2- Slave receive request from master ################################*/
        while(HAL_I2C_Slave_Receive_IT(&I2CxHandle, (uint8_t*)&bTransferRequest, 1)!= HAL_OK)
        {
        }
    
        /*  Before starting a new communication transfer, you need to check the current
        state of the peripheral; if it’s busy you need to wait for the end of current
        transfer before starting a new one.
        For simplicity reasons, this example is just waiting till the end of the
        transfer, but application may perform other tasks while transfer operation
        is ongoing. */
        while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
        {
        }
    
        /* If master request write operation #####################################*/
        if (bTransferRequest == MASTER_REQ_WRITE)
        {
          /*##-3- Slave receive number of data to be read ########################*/
          while(HAL_I2C_Slave_Receive_IT(&I2CxHandle, (uint8_t*)&hRxNumData, 2)!= HAL_OK);
    
          /*  Before starting a new communication transfer, you need to check the current
          state of the peripheral; if it’s busy you need to wait for the end of current
          transfer before starting a new one.
          For simplicity reasons, this example is just waiting till the end of the
          transfer, but application may perform other tasks while transfer operation
          is ongoing. */
          while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
          {
          }
    
          /*##-4- Slave receives aRxBuffer from master ###########################*/
          while(HAL_I2C_Slave_Receive_IT(&I2CxHandle, (uint8_t*)aRxBuffer, hRxNumData)!= HAL_OK);
    
          /*  Before starting a new communication transfer, you need to check the current
          state of the peripheral; if it’s busy you need to wait for the end of current
          transfer before starting a new one.
          For simplicity reasons, this example is just waiting till the end of the
          transfer, but application may perform other tasks while transfer operation
          is ongoing. */
          while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
          {
          }
    
          /* Check correctness of received buffer ################################*/
          if(Buffercmp((uint8_t*)aTxBuffer,(uint8_t*)aRxBuffer,hRxNumData))
          {
            /* Processing Error */
            Error_Handler();
          }
    
          /* Flush Rx buffers */
          Flush_Buffer((uint8_t*)aRxBuffer,RXBUFFERSIZE);
    
          /* Toggle LED4 */
          BSP_LED_Toggle(LED4);
        }
        /* If master request write operation #####################################*/
        else
        {
          /*##-3- Slave receive number of data to be written #####################*/
          while(HAL_I2C_Slave_Receive_IT(&I2CxHandle, (uint8_t*)&hTxNumData, 2)!= HAL_OK);
    
          /*  Before starting a new communication transfer, you need to check the current
          state of the peripheral; if it’s busy you need to wait for the end of current
          transfer before starting a new one.
          For simplicity reasons, this example is just waiting till the end of the
          transfer, but application may perform other tasks while transfer operation
          is ongoing. */
          while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
          {
          }
    
          /*##-4- Slave transmit aTxBuffer to master #############################*/
          while(HAL_I2C_Slave_Transmit_IT(&I2CxHandle, (uint8_t*)aTxBuffer, RXBUFFERSIZE)!= HAL_OK);
    
          /*  Before starting a new communication transfer, you need to check the current
          state of the peripheral; if it’s busy you need to wait for the end of current
          transfer before starting a new one.
          For simplicity reasons, this example is just waiting till the end of the
          transfer, but application may perform other tasks while transfer operation
          is ongoing. */
          while (HAL_I2C_GetState(&I2CxHandle) != HAL_I2C_STATE_READY)
          {
          }
        }
      }
    #endif /* MASTER_BOARD */
    }
    
    /**
      * @brief  This function is executed in case of error occurrence.
      * @param  None
      * @retval None
      */
    static void Error_Handler(void)
    {
      /* Turn Off LED4 */
      BSP_LED_Off(LED4);
      /* Turn On LED5 */
      BSP_LED_On(LED5);
      while(1)
      {
      }
    }
    
    /**
      * @brief  System Clock Configuration
      *         The system Clock is configured as follow :
      *            System Clock source            = PLL (HSE)
      *            SYSCLK(Hz)                     = 168000000
      *            HCLK(Hz)                       = 168000000
      *            AHB Prescaler                  = 1
      *            APB1 Prescaler                 = 4
      *            APB2 Prescaler                 = 2
      *            HSE Frequency(Hz)              = 8000000
      *            PLL_M                          = 8
      *            PLL_N                          = 336
      *            PLL_P                          = 2
      *            PLL_Q                          = 7
      *            VDD(V)                         = 3.3
      *            Main regulator output voltage  = Scale1 mode
      *            Flash Latency(WS)              = 5
      * @param  None
      * @retval None
      */
    static void SystemClock_Config(void)
    {
      RCC_ClkInitTypeDef RCC_ClkInitStruct;
      RCC_OscInitTypeDef RCC_OscInitStruct;
    
      /* Enable Power Control clock */
      __PWR_CLK_ENABLE();
    
      /* The voltage scaling allows optimizing the power consumption when the device is
         clocked below the maximum system frequency, to update the voltage scaling value
         regarding system frequency refer to product datasheet.  */
      __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
    
      /* Enable HSE Oscillator and activate PLL with HSE as source */
      RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
      RCC_OscInitStruct.HSEState = RCC_HSE_ON;
      RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
      RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
      RCC_OscInitStruct.PLL.PLLM = 8;
      RCC_OscInitStruct.PLL.PLLN = 336;
      RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
      RCC_OscInitStruct.PLL.PLLQ = 7;
      HAL_RCC_OscConfig(&RCC_OscInitStruct);
    
      /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
         clocks dividers */
      RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
      RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
      RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
      RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
      RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
      HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
    }
    
    /**
      * @brief  I2C error callbacks
      * @param  I2cHandle: I2C handle
      * @note   This example shows a simple way to report transfer error, and you can
      *         add your own implementation.
      * @retval None
      */
    void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *I2cHandle)
    {
      /* Turn Off LED4 */
      BSP_LED_Off(LED4);
      /* Turn On LED5 */
      BSP_LED_On(LED5);
      while(1)
      {
      }
    }
    
    /**
      * @brief  Compares two buffers.
      * @param  pBuffer1, pBuffer2: buffers to be compared.
      * @param  BufferLength: buffer's length
      * @retval 0  : pBuffer1 identical to pBuffer2
      *         >0 : pBuffer1 differs from pBuffer2
      */
    static uint16_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength)
    {
      while (BufferLength--)
      {
        if ((*pBuffer1) != *pBuffer2)
        {
          return BufferLength;
        }
        pBuffer1++;
        pBuffer2++;
      }
    
      return 0;
    }
    
    /**
      * @brief  Flushes the buffer
      * @param  pBuffer: buffers to be flushed.
      * @param  BufferLength: buffer's length
      * @retval None
      */
    static void Flush_Buffer(uint8_t* pBuffer, uint16_t BufferLength)
    {
      while (BufferLength--)
      {
        *pBuffer = 0;
    
        pBuffer++;
      }
    }
    #ifdef  USE_FULL_ASSERT
    
    /**
      * @brief  Reports the name of the source file and the source line number
      *         where the assert_param error has occurred.
      * @param  file: pointer to the source file name
      * @param  line: assert_param error line source number
      * @retval None
      */
    void assert_failed(uint8_t* file, uint32_t line)
    {
      /* User can add his own implementation to report the file name and line number,
         ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    
      /* Infinite loop */
      while (1)
      {
      }
    }
    #endif
    
    /**
      * @}
      */
    
    /**
      * @}
      */
    
    /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  5. madTRACER

    madTRACER Частый гость

    Сообщения:
    3
    Симпатии:
    1
    Род занятий:
    Embedded systems engineering
    Адрес:
    Almaty

Поделиться этой страницей