C++ BSP_LCD_SelectLayer函数代码示例

/**
  * @brief  LCD configuration
  * @param  None
  * @retval None
  */
static void LCD_Config(void)
{
  /* LCD Initialization */ 
  /* Two layers are used in this application but not simultaneously 
     so "LCD_MAX_PCLK" is recommended to programme the maximum PCLK = 25,16 MHz */
  BSP_LCD_Init();

  /* LCD Initialization */ 
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_LayerDefaultInit(1, LCD_FB_START_ADDRESS+(BSP_LCD_GetXSize()*BSP_LCD_GetYSize()*4));

  /* Enable the LCD */ 
  BSP_LCD_DisplayOn(); 
  
  /* Select the LCD Background Layer  */
  BSP_LCD_SelectLayer(0);

  /* Clear the Background Layer */ 
  BSP_LCD_Clear(LCD_COLOR_BLACK);  
  
  /* Select the LCD Foreground Layer  */
  BSP_LCD_SelectLayer(1);

  /* Clear the Foreground Layer */ 
  BSP_LCD_Clear(LCD_COLOR_BLACK);
  
  /* Configure the transparency for foreground and background :
     Increase the transparency */
  BSP_LCD_SetTransparency(0, 0);
  BSP_LCD_SetTransparency(1, 100);
}

/**
  * @brief  LCD configuration.
  * @param  None
  * @retval None
  */
static void LCD_Config(void)
{
  /* LCD Initialization */ 
  BSP_LCD_Init();

  /* LCD Layers Initialization */ 
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_LayerDefaultInit(1, (LCD_FB_START_ADDRESS+(BSP_LCD_GetXSize()*BSP_LCD_GetYSize()*4)));
  
  /* Enable the LCD */ 
  BSP_LCD_DisplayOn();

  /* Set LCD Background Layer  */
  BSP_LCD_SelectLayer(0);
  /* Clear the Background Layer */
  BSP_LCD_Clear(LCD_COLOR_WHITE);

  /* Set LCD Foreground Layer  */
  BSP_LCD_SelectLayer(1);
  /* Clear the Foreground Layer */ 
  BSP_LCD_Clear(LCD_COLOR_BLACK); 

  /* Configure and enable the Color Keying feature */
  BSP_LCD_SetColorKeying(1, 0); 

  /* Configure the transparency for foreground: Increase the transparency */
  BSP_LCD_SetTransparency(1, 100);
}

/**
  * @brief  LCD configuration
  * @param  None
  * @retval None
  */
static void LCD_Config(void)
{
	uint8_t lcd_status = LCD_OK;

	/* LCD DSI initialization in mode Video Burst  */
	/* Initialize DSI LCD */
        //  BSP_LCD_InitEx(LCD_ORIENTATION_PORTRAIT); /* uncomment if Portrait orientation is needed */
        BSP_LCD_Init(); /* Uncomment if default config (landscape orientation) is needed */
        while(lcd_status != LCD_OK);
      
        BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
        BSP_LCD_LayerDefaultInit(1, LCD_BG_LAYER_ADDRESS);   

	/* Select the LCD Background Layer  */
	BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);

	/* Clear the Background Layer */
	BSP_LCD_Clear(LCD_COLOR_BLACK);

	/* Select the LCD Foreground Layer  */
	BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_FOREGROUND);

	/* Clear the Foreground Layer */
	BSP_LCD_Clear(LCD_COLOR_BLACK);

	/* Configure the transparency for foreground and background :
     Increase the transparency */
	BSP_LCD_SetTransparency(LTDC_ACTIVE_LAYER_BACKGROUND, 0);
	BSP_LCD_SetTransparency(LTDC_ACTIVE_LAYER_FOREGROUND, 100);
}

/**
  * @brief  LCD configuration.
  * @param  None
  * @retval None
  */
static void LCD_Config(void)
{
  /* LCD Initialization */ 
  /* Two layers are used in this application simultaneously 
     so "LCD_MIN_PCLK" is recommended to programme the PCLK at 20 MHz */  
  BSP_LCD_InitEx(LCD_MIN_PCLK);
  
  /* LCD Layers Initialization */ 
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_LayerDefaultInit(1, (LCD_FB_START_ADDRESS+(BSP_LCD_GetXSize()*BSP_LCD_GetYSize()*4)));
  
  /* Enable the LCD */ 
  BSP_LCD_DisplayOn();

  /* Set LCD Background Layer  */
  BSP_LCD_SelectLayer(0);
  /* Clear the Background Layer */
  BSP_LCD_Clear(LCD_COLOR_WHITE);

  /* Set LCD Foreground Layer  */
  BSP_LCD_SelectLayer(1);
  /* Clear the Foreground Layer */ 
  BSP_LCD_Clear(LCD_COLOR_BLACK); 

  /* Configure and enable the Color Keying feature */
  BSP_LCD_SetColorKeying(1, 0); 

  /* Configure the transparency for foreground: Increase the transparency */
  BSP_LCD_SetTransparency(1, 100);
}

/**
  * @brief  DS application Init.
  * @param  None
  * @retval None
  */
static void DynamicSwitch_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);                 
  
  /* Configure LED1 */
  BSP_LED_Init(LED1);
  
  /* Initialize the LCD */
  BSP_LCD_Init();
  
  /* LCD Layer Initialization */
  BSP_LCD_LayerDefaultInit(1, LCD_FB_START_ADDRESS); 
  
  /* Selects the LCD Layer */
  BSP_LCD_SelectLayer(1);
  
  /* Enables the display */
  BSP_LCD_DisplayOn();
  
  /* Init the LCD Log module */
  LCD_LOG_Init();
  
#ifdef USE_USB_HS 
  LCD_LOG_SetHeader((uint8_t *)" USB HS DynamicSwitch Host");
#else
  LCD_LOG_SetHeader((uint8_t *)" USB FS DynamicSwitch Host");
#endif
  
  LCD_UsrLog("USB Host library started.\n"); 
  
  /* Start Dynamic Switch Interface */
  LCD_UsrLog("Starting DynamicSwitch Demo\n");
  LCD_UsrLog("Plug your device To Continue...\n");
}

/**
  * @brief  CDC application Init
  * @param  None
  * @retval None
  */
static void CDC_InitApplication(void)
{
  /* Configure LED1, LED2, LED3 and LED4 */
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED2);
  BSP_LED_Init(LED3);
  BSP_LED_Init(LED4);
  
  /* Configure KEY Button */
  BSP_PB_Init(BUTTON_WAKEUP, BUTTON_MODE_GPIO);
  
  /* Initialize the LCD */
  BSP_LCD_Init();
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_SelectLayer(0);
  
  /* Init the LCD Log module */
  LCD_LOG_Init();
  
  LCD_LOG_SetHeader((uint8_t *)" USB OTG FS CDC Host");
  LCD_UsrLog("USB Host library started.\n"); 
    
  /* Start CDC Interface */
  USBH_UsrLog("Starting CDC Demo");
  
  Menu_Init();
}

/**
  * @brief  MSC application Init.
  * @param  None
  * @retval None
  */
static void MSC_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);

  /* Configure Joystick in EXTI mode */
  BSP_JOY_Init(JOY_MODE_EXTI);

  /* Configure LED1, LED2, LED3 and LED4 */
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED2);
  BSP_LED_Init(LED3);
  BSP_LED_Init(LED4);

  /* Initialize the LCD */
  BSP_LCD_Init();
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_SelectLayer(0);

  /* Init the LCD Log module */
  LCD_LOG_Init();

#ifdef USE_USB_HS
  LCD_LOG_SetHeader((uint8_t *)" USB OTG HS MSC Host");
#else
  LCD_LOG_SetHeader((uint8_t *)" USB OTG FS MSC Host");
#endif

  LCD_UsrLog("USB Host library started.\n");

  /* Initialize menu and MSC process */
  USBH_UsrLog("Starting MSC Demo");
  Menu_Init();
}

/**
  * @brief  DUALCORE application Init.
  * @param  None
  * @retval None
  */
static void DUAL_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);                
  
  /* Configure LED1 */
  BSP_LED_Init(LED1);
  
  /* Initialize the LCD */
  BSP_LCD_Init();
  
  /* LCD Layer Initialization */
  BSP_LCD_LayerDefaultInit(1, LCD_FB_START_ADDRESS); 
  
  /* Selects the LCD Layer */
  BSP_LCD_SelectLayer(1);
  
  /* Enables the display */
  BSP_LCD_DisplayOn();
  
  /* Init the LCD Log module */
  LCD_LOG_Init();
  
  LCD_LOG_SetHeader((uint8_t *)" USB OTG DualCore Host");
  
  LCD_UsrLog("USB Host library started.\n"); 
  
  /* Start DualCore Interface */
  USBH_UsrLog("Initializing hardware....");
  DUAL_MenuInit(); 
}

/**
  * @brief  MSC application Init.
  * @param  None
  * @retval None
  */
static void MSC_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_WAKEUP, BUTTON_MODE_EXTI);
      
  /* Configure LED1 */
  BSP_LED_Init(LED1);
  
  /* 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();
  
  /* Initialize the LCD Log module */
  LCD_LOG_Init();
  
  LCD_LOG_SetHeader((uint8_t *)" USB OTG FS MSC Host");
  LCD_UsrLog("USB Host library started.\n"); 
  
  /* Initialize menu and MSC process */
  Menu_Init();
}

/**
  * @brief  DUALCORE application Init
  * @param  None
  * @retval None
  */
static void DUAL_InitApplication(void)
{
  /* Configure LED1s */
  BSP_LED_Init(LED1);
  BSP_LED_Init(LED2);
  BSP_LED_Init(LED3);
  BSP_LED_Init(LED4);

  /* Configure KEY Button */
  BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);

  /* Configure Joystick in EXTI mode */
  BSP_JOY_Init(JOY_MODE_EXTI);

  /* Initialize the LCD */
  BSP_LCD_Init();
  BSP_LCD_LayerDefaultInit(0, LCD_FB_START_ADDRESS);
  BSP_LCD_SelectLayer(0);


  /* Init the LCD Log module */
  LCD_LOG_Init();

  LCD_LOG_SetHeader((uint8_t *)" USB OTG DualCore Host");

  LCD_UsrLog("USB Host library started.\n");

  /* Start DualCore Interface */
  USBH_UsrLog("Initializing hardware....");
  DUAL_MenuInit();
}

void lcd_init(void) {

    BSP_LCD_Init();

    BSP_LCD_LayerDefaultInit(0, (uint32_t)LCD_FRAME_BUFFER);
    BSP_LCD_SelectLayer(0);
    BSP_LCD_Clear(LCD_COLOR_RED);
    BSP_LCD_SetBackColor(LCD_COLOR_RED);
    BSP_LCD_SetTextColor(LCD_COLOR_WHITE);

//     BSP_LCD_LayerDefaultInit(1, (uint32_t)LCD_FRAME_BUFFER + 76800);
//     BSP_LCD_SelectLayer(1);
//     BSP_LCD_Clear(LCD_COLOR_RED);
//     BSP_LCD_SetBackColor(LCD_COLOR_RED);
//     BSP_LCD_SetTextColor(LCD_COLOR_WHITE);

    BSP_LCD_SetLayerVisible(0, ENABLE);
//     BSP_LCD_SetLayerVisible(1, ENABLE);

    BSP_LCD_DisplayOn();

    for (int i = 0; i < LCD_SIZE; i ++) {
        lcd.screen[i] = ' ';
    }
    lcd.col = 0;
}

/**
  * @brief  HID application Init.
  * @param  None
  * @retval None
  */
static void HID_InitApplication(void)
{
  /* Configure Key Button */
  BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_EXTI);
  
  /* Configure LED1*/
  BSP_LED_Init(LED1);
  
  /* 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();
  
  /* Initialize the LCD Log module */
  LCD_LOG_Init();
  
#ifdef USE_USB_HS 
  LCD_LOG_SetHeader((uint8_t *)" USB OTG HS HID Host");
#else
  LCD_LOG_SetHeader((uint8_t *)" USB OTG FS HID Host");
#endif
  
  LCD_UsrLog("USB Host library started.\n"); 
  
  /* Start HID Interface */
  USBH_UsrLog("Starting HID Demo");
  HID_MenuInit();
}

/**
  * @brief  Display main demo messages
  * @param  None
  * @retval None
  */
static void Display_DemoDescription(void)
{
  char desc[50];

  /* Set LCD Foreground Layer  */
  BSP_LCD_SelectLayer(1);

  BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
  
  /* Clear the LCD */ 
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
  BSP_LCD_Clear(LCD_COLOR_WHITE);

  /* Set the LCD Text Color */
  BSP_LCD_SetTextColor(LCD_COLOR_DARKBLUE);  

  /* Display LCD messages */
  BSP_LCD_DisplayStringAt(0, 10, (uint8_t *)"STM32756G BSP", CENTER_MODE);
  BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"Drivers examples", CENTER_MODE);
  
  /* Draw Bitmap */
  BSP_LCD_DrawBitmap((BSP_LCD_GetXSize() - 80)/2, 65, (uint8_t *)stlogo);
  
  BSP_LCD_SetFont(&Font12);
  BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 20, (uint8_t *)"Copyright (c) STMicroelectronics 2015", CENTER_MODE);
  
  BSP_LCD_SetFont(&Font16);
  BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
  BSP_LCD_FillRect(0, BSP_LCD_GetYSize()/2 + 15, BSP_LCD_GetXSize(), 60);
  BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
  BSP_LCD_SetBackColor(LCD_COLOR_BLUE); 
  BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize() / 2 + 30, (uint8_t *)"Press Tamper push-button to start :", CENTER_MODE);
  sprintf(desc,"%s example", BSP_examples[DemoIndex].DemoName);
  BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()/2 + 45, (uint8_t *)desc, CENTER_MODE);   
}

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
  uint8_t  lcd_status = LCD_OK;
  
  /* STM32F4xx HAL library initialization:
    - Configure the Flash prefetch, instruction and Data caches
    - Systick timer is configured by default as source of time base, but user 
      can eventually implement his proper time base source (a general purpose 
      timer for example or other time source), keeping in mind that Time base 
      duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and 
      handled in milliseconds basis.
    - Set NVIC Group Priority to 4
    - Low Level Initialization: global MSP (MCU Support Package) initialization
  */
  HAL_Init();
  
  /* Configure the system clock to 180 MHz */
  SystemClock_Config();
  
  /* Initialize the SDRAM */
  BSP_SDRAM_Init();
  
  /* Initialize the LCD   */
  lcd_status = LCD_Init();
  OnError_Handler(lcd_status != LCD_OK); 

  /* Initialize LTDC layer 0 iused for Hint */
  BSP_LCD_LayerDefaultInit(0, LAYER0_ADDRESS);     
  BSP_LCD_SelectLayer(0); 
    
  /* Display example brief   */
  LCD_BriefDisplay();
  
  /*Draw first image */
  CopyBuffer((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240);
  pending_buffer = 0;
  
  /*Refresh the LCD display*/
  HAL_DSI_Refresh(&hdsi_eval);

  /* Infinite loop */
  while (1)
  {
    if(pending_buffer < 0)
    {
      CopyBuffer((uint32_t *)Images[ImageIndex++], (uint32_t *)LAYER0_ADDRESS, 240, 160, 320, 240);
      
      if(ImageIndex >= 2)
      {
        ImageIndex = 0;
      }
      pending_buffer = 0;
      
      HAL_DSI_Refresh(&hdsi_eval);
    }
    /* Wait some time before switching to next image */
    HAL_Delay(2000);
  }
}

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
 /* This sample code shows how to use STM32F4xx GPIO HAL API to toggle PG13 
     IOs (connected to LED3 on STM32F429i-Discovery board) 
    in an infinite loop.
    To proceed, 3 steps are required: */

  /* 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();

  /* -1- Initialize LEDs mounted on Discovery board */
  BSP_LED_Init(LED3);
  BSP_LED_Init(LED4);
  
  /* -2- Configure the system clock */
  SystemClock_Config();
  
  /* -3- Configure EXTI Line0 (connected to PA0 pin) in interrupt mode */
  EXTILine0_Config();
  
  /*##-1- Initialize the LCD #################################################*/
  /* Initialize the LCD */
  BSP_LCD_Init();

  /* Initialise the LCD Layers */
  BSP_LCD_LayerDefaultInit(1, LCD_FRAME_BUFFER);

  /* Gleich bleibende Einstellenungen am LCD-Display */
  /* Set LCD Foreground Layer  */
  BSP_LCD_SelectLayer(1);

  BSP_LCD_SetFont(&LCD_DEFAULT_FONT);

  /* Clear the LCD */ 
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
  BSP_LCD_Clear(LCD_COLOR_WHITE);

  /* Set the LCD Text Color */
  BSP_LCD_SetTextColor(LCD_COLOR_DARKBLUE);  

  /* Display LCD messages */
  BSP_LCD_DisplayStringAt(0, 10, (uint8_t*)"GOLF CART", CENTER_MODE);
  BSP_LCD_SetFont(&Font16);
  BSP_LCD_DisplayStringAt(0, 35, (uint8_t*)"v in km/h", CENTER_MODE);  
  
  /* Infinite loop */
  while (1)
  {
      if (uAenderung) {
        GeschwindigkeitAufLCD(uAktuelleGeschwindigkeit_zehntelkmh);  
        uAenderung = 0;
      }
  }
}