C++ BSP_IO_ConfigPin函数代码示例

/**
  * @brief  DeInitializes the SD card device.
  * @param  SdCard: SD card to be used, that should be SD_CARD1 or SD_CARD2 
  * @retval SD status
  */
uint8_t BSP_SD_DeInitEx(uint32_t SdCard)
{ 
  uint8_t sd_state = MSD_OK;
  
  /* Set back Mfx pin to INPUT mode in case it was in exti */
  UseExtiModeDetection = 0;
  if(SdCard == SD_CARD1)
  {
    uSdHandle.Instance = SDMMC1;    
    /* HAL SD deinitialization */
    if(HAL_SD_DeInit(&uSdHandle) != HAL_OK)
    {
      sd_state = MSD_ERROR;
    }
    
    /* Msp SD deinitialization */
    BSP_SD_MspDeInit(&uSdHandle, NULL);    
    BSP_IO_ConfigPin(SD1_DETECT_PIN, IO_MODE_INPUT_PU);
  }
  else
  {
    uSdHandle2.Instance = SDMMC2;    
    BSP_IO_ConfigPin(SD2_DETECT_PIN, IO_MODE_INPUT_PU); 
    
    /* HAL SD deinitialization */
    if(HAL_SD_DeInit(&uSdHandle2) != HAL_OK)
    {
      sd_state = MSD_ERROR;
    }
    
    /* Msp SD deinitialization */
    BSP_SD_MspDeInit(&uSdHandle2, NULL);
  }  
  return  sd_state;
}

/**
  * @brief  Audio Application Init.
  * @param  None
  * @retval None
  */
static void AUDIO_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI);              
  
  /* Configure IO and LED1 */
  BSP_IO_Init();
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED4);
 
  /* Configure Joystick in EXTI mode */
  BSP_JOY_Init(JOY_MODE_EXTI);
  
  /* Camera has to be powered down as some signals use same GPIOs between
   * I2S signals and camera bus. Camera drives its signals to low impedance
   * when powered ON. So the camera is powered off to let its signals
   * in high impedance */

  /* Camera power down sequence */
  BSP_IO_ConfigPin(RSTI_PIN, IO_MODE_OUTPUT);
  BSP_IO_ConfigPin(XSDN_PIN, IO_MODE_OUTPUT);

  /* De-assert the camera STANDBY pin (active high) */
  BSP_IO_WritePin(XSDN_PIN, BSP_IO_PIN_RESET);

  /* Assert the camera RSTI pin (active low) */
  BSP_IO_WritePin(RSTI_PIN, BSP_IO_PIN_RESET);

  /* Initialize the LCD */
  BSP_LCD_Init();
  
  /* LCD Layer Initialization */
  BSP_LCD_LayerDefaultInit(1, LCD_FB_START_ADDRESS); 
  
  /* Select the LCD Layer */
  BSP_LCD_SelectLayer(1);
  
  /* Enable the display */
  BSP_LCD_DisplayOn();
  
  /* Init the LCD Log module */
  LCD_LOG_Init();
  
  LCD_LOG_SetHeader((uint8_t *)"Audio Playback and Record Application");
  
  LCD_UsrLog("USB Host library started.\n"); 
  
  /* Start Audio interface */
  USBH_UsrLog("Starting Audio Demo");
  
  /* Init Audio interface */
  AUDIO_PLAYER_Init();
  
  /* Start Audio interface */
  AUDIO_MenuInit();
}

/**
  * @brief  CAMERA power down
  * @param  None
  * @retval None
  */
void BSP_CAMERA_PwrDown(void)
{
  /* Camera power down sequence */
  BSP_IO_ConfigPin(RSTI_PIN, IO_MODE_OUTPUT);
  BSP_IO_ConfigPin(XSDN_PIN, IO_MODE_OUTPUT);

  /* De-assert the camera STANDBY pin (active high) */
  BSP_IO_WritePin(XSDN_PIN, BSP_IO_PIN_RESET);

  /* Assert the camera RSTI pin (active low) */
  BSP_IO_WritePin(RSTI_PIN, BSP_IO_PIN_RESET);
}

/**
  * @brief  Configures Interrupt mode for SD detection pin.
  * @param  None
  * @retval IO_OK: if all initializations are OK. Other value if error.
  */
uint8_t BSP_SD_ITConfig(void)
{
  /* Check SD card detect pin */
  if (BSP_IO_ReadPin(SD_DETECT_PIN) != SD_DETECT_PIN)
  {
    return BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_IT_RISING_EDGE_PU);
  }
  else
  {
    return BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_IT_FALLING_EDGE_PU);
  }
}

/**
  * @brief  Configures and enables the touch screen interrupts.
  * @retval TS_OK if all initializations are OK. Other value if error.
  */
uint8_t BSP_TS_ITConfig(void)
{
  uint8_t ts_status = TS_ERROR;
  uint8_t io_status = IO_ERROR;

  /* Initialize the IO */
  io_status = BSP_IO_Init();
  if(io_status != IO_OK)
  {
    return (ts_status);
  }

  /* Configure TS IT line IO : is active low on FT6206 (see data sheet)                           */
  /* Configure TS_INT_PIN (MFX_IO_14) low level to generate MFX_IRQ_OUT in EXTI on MCU            */
  /* This will call HAL_GPIO_EXTI_Callback() that is setting variable 'mfx_exti_received' to 1b1' */
  io_status = BSP_IO_ConfigPin(TS_INT_PIN, IO_MODE_IT_LOW_LEVEL_PU);
  if(io_status != IO_OK)
  {
    return (ts_status);
  }

  /* Enable the TS in interrupt mode */
  /* In that case the INT output of FT6206 when new touch is available */
  /* is active low and directed on MFX IO14 */
  ts_driver->EnableIT(I2C_Address);

  /* If arrived here : set good status on exit */
  ts_status = TS_OK;

  return (ts_status);
}

/**
  * @brief  Configures Interrupt mode for SD detection pin.
  * @param  None
  * @retval Returns 0
  */
uint8_t BSP_SD_ITConfig(void)
{  
  /* Configure Interrupt mode for SD detection pin */  
  BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_IT_FALLING_EDGE);
  
  return 0;
}

/**
  * @brief  Initializes the SD Detect pin MSP.
  * @param  hsd: SD handle
  * @param  Params
  * @retval None
  */
static void SD_Detect_MspInit(void)
{
  if (BSP_IO_Init() == IO_ERROR)
  {
    BSP_ErrorHandler();
  }
  BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_INPUT_PU);
}

/**
 * @brief  Detects if SD card is correctly plugged in the memory slot or not.
 * @param  SdCard: SD card to be used, that should be SD_CARD1 or SD_CARD2 
 * @retval Returns if SD is detected or not
 */
uint8_t BSP_SD_IsDetectedEx(uint32_t SdCard)
{
  __IO uint8_t status = SD_PRESENT;
  
  if(SdCard == SD_CARD1)
  {
    /* Check SD card detect pin */
    if((BSP_IO_ReadPin(SD1_DETECT_PIN)&SD1_DETECT_PIN) != SD1_DETECT_PIN)
    {
      if (UseExtiModeDetection)
      {
        BSP_IO_ConfigPin(SD1_DETECT_PIN, IO_MODE_IT_RISING_EDGE_PU);
      }
    }
    else
    {
      status = SD_NOT_PRESENT;
      if (UseExtiModeDetection)
      {
        BSP_IO_ConfigPin(SD1_DETECT_PIN, IO_MODE_IT_FALLING_EDGE_PU);
      }
    }
  }
  else
  {
    /* Check SD card detect pin */
    if((BSP_IO_ReadPin(SD2_DETECT_PIN)&SD2_DETECT_PIN) != SD2_DETECT_PIN)
    {
      if (UseExtiModeDetection)
      {
        BSP_IO_ConfigPin(SD2_DETECT_PIN, IO_MODE_IT_RISING_EDGE_PU);
      }
    }
    else
    {
      status = SD_NOT_PRESENT;
      if (UseExtiModeDetection)
      {
        BSP_IO_ConfigPin(SD2_DETECT_PIN, IO_MODE_IT_FALLING_EDGE_PU);
      }
    }    
  }
  return status;
}

/**
  * @brief  Get Idd current value.
  * @param  IddValue: Pointer on u32 to store Idd. Value unit is 10 nA.
  * @retval None
  */
void BSP_IDD_GetValue(uint32_t *IddValue)
{
  /* De-activate the OPAMP used ny the MFX to measure the current consumption */
  BSP_IO_ConfigPin(IDD_AMP_CONTROL_PIN, IO_MODE_OUTPUT);
  BSP_IO_WritePin(IDD_AMP_CONTROL_PIN, GPIO_PIN_RESET);

  if (IddDrv->GetValue != NULL)
  {
    IddDrv->GetValue(IDD_I2C_ADDRESS, IddValue);
  }
}

/**
 * @brief  Detects if SD card is correctly plugged in the memory slot or not.
 * @retval Returns if SD is detected or not
 */
uint8_t BSP_SD_IsDetected(void)
{
  __IO uint8_t status = SD_PRESENT;
  
  /* Check SD card detect pin */
  if((BSP_IO_ReadPin(SD_DETECT_PIN)&SD_DETECT_PIN) != SD_DETECT_PIN)
  {
     if (UseExtiModeDetection)
      BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_IT_RISING_EDGE_PU);

  }
  else
  {
    status = SD_NOT_PRESENT;
    if (UseExtiModeDetection)
      BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_IT_FALLING_EDGE_PU);
  }

  return status;
}

/**
  * @brief  Initializes the SD Detect pin MSP.
  * @param  hsd: SD handle
  * @param  Params
  * @retval None
  */
static void SD_Detect_MspDeInit(void)
{
  /* Disable all interrupts */
  /*HAL_NVIC_DisableIRQ(MFX_INT_EXTI_IRQn);*/

  if (BSP_IO_Init() == IO_ERROR)
  {
    BSP_ErrorHandler();
  }
  BSP_IO_ConfigPin(SD_DETECT_PIN, IO_MODE_ANALOG);
}

/**
  * @brief  Start Measurement campaign
  * @retval None
  */
void BSP_IDD_StartMeasure(void)
{

  /* Activate the OPAMP used ny the MFX to measure the current consumption */
  BSP_IO_ConfigPin(IDD_AMP_CONTROL_PIN, IO_MODE_OUTPUT);
  BSP_IO_WritePin(IDD_AMP_CONTROL_PIN, GPIO_PIN_RESET);

  if (IddDrv->Start != NULL)
  {
    IddDrv->Start(IDD_I2C_ADDRESS);
  }
}

/**
  * @brief  Initializes the camera.
  * @param  Camera: Pointer to the camera configuration structure
  * @retval Camera status
  */
uint8_t BSP_CAMERA_Init(uint32_t Resolution)
{ 
  DCMI_HandleTypeDef *phdcmi;
  
  uint8_t ret = CAMERA_ERROR;
  
  /* Get the DCMI handle structure */
  phdcmi = &hdcmi_eval;
  
  /*** Configures the DCMI to interface with the camera module ***/
  /* DCMI configuration */
  phdcmi->Init.CaptureRate      = DCMI_CR_ALL_FRAME;  
  phdcmi->Init.HSPolarity       = DCMI_HSPOLARITY_LOW;
  phdcmi->Init.SynchroMode      = DCMI_SYNCHRO_HARDWARE;
  phdcmi->Init.VSPolarity       = DCMI_VSPOLARITY_LOW;
  phdcmi->Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
  phdcmi->Init.PCKPolarity      = DCMI_PCKPOLARITY_RISING;
  phdcmi->Instance              = DCMI;  

  /* Configure IO functionalities for camera detect pin */
  BSP_IO_Init(); 
  
  /* Set the camera STANDBY pin */
  BSP_IO_ConfigPin(XSDN_PIN, IO_MODE_OUTPUT);
  BSP_IO_WritePin(XSDN_PIN, SET);
  
  /* Check if the camera is plugged */
  if(BSP_IO_ReadPin(CAM_PLUG_PIN))
  {
    return CAMERA_ERROR;
  }
  
  /* DCMI Initialization */
  DCMI_MspInit();  
  HAL_DCMI_Init(phdcmi);
  
  if(ov2640_ReadID(CAMERA_I2C_ADDRESS) == OV2640_ID)
  { 
    /* Initialize the camera driver structure */
    camera_drv = &ov2640_drv;     
    
    /* Camera Init */   
    camera_drv->Init(CAMERA_I2C_ADDRESS, Resolution);
    
    /* Return CAMERA_OK status */
    ret = CAMERA_OK;
  } 
  
  current_resolution = Resolution;
  
  return ret;
}

/**
  * @brief  Configures and enables the touch screen interrupts.
  * @retval TS_OK if all initializations are OK. Other value if error.
  */
uint8_t BSP_TS_ITConfig(void)
{
  /* Initialize the IO */
  BSP_IO_Init();
  
  /* Configure TS IT line IO */
  BSP_IO_ConfigPin(TS_INT_PIN, IO_MODE_IT_FALLING_EDGE);
  
  /* Enable the TS ITs */
  tsDriver->EnableIT(I2cAddress);

  return TS_OK;  
}

/**
  * @brief  Initializes the STM324x9I-EVAL's LCD and LEDs resources.
  * @param  None
  * @retval None
  */
static void BSP_Config(void)
{
  /* Initialize STM324x9I-EVAL's LEDs */
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED2);
  BSP_LED_Init(LED3);
  BSP_LED_Init(LED4);
  
  /* Init IO Expander */
  BSP_IO_Init();
  /* Enable IO Expander interrupt for ETH MII pin */
  BSP_IO_ConfigPin(MII_INT_PIN, IO_MODE_IT_FALLING_EDGE);
}