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[STM32L5] 【STM32L562 DK试用】基础外设体验

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 楼主| lishuihua 发表于 2025-3-8 11:34 | 显示全部楼层 |阅读模式
TFT, ST, STM, STM32, STM32L, stm32l5
开发板自带了一块240*240分辨率的触摸屏：
8073667cb03f152499.png

本次基于官方demo进行修改，从而在屏幕上显示相应的文字。首先进行系统和时钟的初始化：
复制
  1. HAL_StatusTypeDef HAL_Init(void)
    

  2. {
    

  3.   HAL_StatusTypeDef  status = HAL_OK;
    


  4. 

  5.   /* Set Interrupt Group Priority */
    

  6.   HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_3);
    


  7. 

  8.   /* Insure time base clock coherency */
    

  9.   SystemCoreClockUpdate();
    


  10. 

  11.   /* Use SysTick as time base source and configure 1ms tick (default clock after Reset is MSI) */
    

  12.   if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
    

  13.   {
    

  14.     status = HAL_ERROR;
    

  15.   }
    

  16.   else
    

  17.   {
    

  18.     /* Init the low level hardware */
    

  19.     HAL_MspInit();
    

  20.   }
    


  21. 

  22.   /* Return function status */
    

  23.   return status;
    

  24. }
然后进行相关HMI设备和LED等的初始化：
复制
  1. static void SystemHardwareInit(void)
    

  2. {
    

  3.   /* Init LEDs  */
    

  4.   if (LedInitialized != SET)
    

  5.   {
    

  6.     if (BSP_LED_Init(LED9) != BSP_ERROR_NONE)
    

  7.     {
    

  8.       Error_Handler();
    

  9.     }
    

  10.     if (BSP_LED_Init(LED10) != BSP_ERROR_NONE)
    

  11.     {
    

  12.       Error_Handler();
    

  13.     }
    

  14.     LedInitialized = SET;
    

  15.   }
    


  16. 

  17.   /* Init User push-button in EXTI Mode */
    

  18.   if (ButtonInitialized != SET)
    

  19.   {
    

  20.     if (BSP_PB_Init(BUTTON_USER, BUTTON_MODE_EXTI) != BSP_ERROR_NONE)
    

  21.     {
    

  22.       Error_Handler();
    

  23.     }
    

  24.     ButtonInitialized = SET;
    

  25.   }
    


  26. 

  27.   /* Initialize the LCD */
    

  28.   if (LcdInitialized != SET)
    

  29.   {
    

  30.     LCD_UTILS_Drv_t lcdDrv;
    


  31. 

  32.     /* Initialize the LCD */
    

  33.     if (BSP_LCD_Init(0, LCD_ORIENTATION_PORTRAIT) != BSP_ERROR_NONE)
    

  34.     {
    

  35.       Error_Handler();
    

  36.     }
    


  37. 

  38.     /* Set UTIL_LCD functions */
    

  39.     lcdDrv.DrawBitmap  = BSP_LCD_DrawBitmap;
    

  40.     lcdDrv.FillRGBRect = BSP_LCD_FillRGBRect;
    

  41.     lcdDrv.DrawHLine   = BSP_LCD_DrawHLine;
    

  42.     lcdDrv.DrawVLine   = BSP_LCD_DrawVLine;
    

  43.     lcdDrv.FillRect    = BSP_LCD_FillRect;
    

  44.     lcdDrv.GetPixel    = BSP_LCD_ReadPixel;
    

  45.     lcdDrv.SetPixel    = BSP_LCD_WritePixel;
    

  46.     lcdDrv.GetXSize    = BSP_LCD_GetXSize;
    

  47.     lcdDrv.GetYSize    = BSP_LCD_GetYSize;
    

  48.     lcdDrv.SetLayer    = BSP_LCD_SetActiveLayer;
    

  49.     lcdDrv.GetFormat   = BSP_LCD_GetFormat;
    

  50.     UTIL_LCD_SetFuncDriver(&lcdDrv);
    


  51. 

  52.     /* Clear the LCD */
    

  53.     UTIL_LCD_Clear(UTIL_LCD_COLOR_WHITE);
    


  54. 

  55.     /* Set the display on */
    

  56.     if (BSP_LCD_DisplayOn(0) != BSP_ERROR_NONE)
    

  57.     {
    

  58.       Error_Handler();
    

  59.     }
    


  60. 

  61.     LcdInitialized = SET;
    

  62.   }
    


  63. 

  64.   /* Initialize the TouchScreen */
    

  65.   if (TsInitialized != SET)
    

  66.   {
    

  67.     TS_Init_t TsInit;
    


  68. 

  69.     /* Initialize the TouchScreen */
    

  70.     TsInit.Width       = 240;
    

  71.     TsInit.Height      = 240;
    

  72.     TsInit.Orientation = TS_ORIENTATION_PORTRAIT;
    

  73.     TsInit.Accuracy    = 10;
    

  74.     if (BSP_TS_Init(0, &TsInit) != BSP_ERROR_NONE)
    

  75.     {
    

  76.       Error_Handler();
    

  77.     }
    


  78. 

  79.     /* Configure TS interrupt */
    

  80.     if (BSP_TS_EnableIT(0) != BSP_ERROR_NONE)
    

  81.     {
    

  82.       Error_Handler();
    

  83.     }
    


  84. 

  85.     TsInitialized = SET;
    

  86.   }
    

  87. }


调用屏幕API进行显示：
复制
  1. static void Display_DemoDescription(void)
    

  2. {
    

  3.   char desc[60];
    


  4. 

  5.   /* Set font */
    

  6.   UTIL_LCD_SetFont(&Font20);
    


  7. 

  8.   /* Clear the LCD */
    

  9.   UTIL_LCD_Clear(UTIL_LCD_COLOR_WHITE);
    


  10. 

  11.   /* Set the LCD Text Color */
    

  12.   UTIL_LCD_SetTextColor(UTIL_LCD_COLOR_DARKBLUE);
    

  13.   UTIL_LCD_SetBackColor(UTIL_LCD_COLOR_WHITE);
    


  14. 

  15.   /* Display LCD messages */
    

  16.   UTIL_LCD_DisplayStringAt(0, 10, (uint8_t *)"STM32L562E-DK BSP", CENTER_MODE);
    

  17.   UTIL_LCD_DisplayStringAt(0, 35, (uint8_t *)"drivers example", CENTER_MODE);
    


  18. 

  19.   /* Draw Bitmap */
    

  20.   UTIL_LCD_DrawBitmap(80, 65, (uint8_t *)st**);
    


  21. 

  22.   UTIL_LCD_SetFont(&Font8);
    

  23.   UTIL_LCD_DisplayStringAt(0, 220, (uint8_t *)"Copyright (c) STMicroelectronics 2019", CENTER_MODE);
    


  24. 

  25.   UTIL_LCD_SetFont(&Font12);
    

  26.   UTIL_LCD_FillRect(0, 145, 240, 50, UTIL_LCD_COLOR_BLUE);
    

  27.   UTIL_LCD_SetTextColor(UTIL_LCD_COLOR_WHITE);
    

  28.   UTIL_LCD_SetBackColor(UTIL_LCD_COLOR_BLUE);
    

  29.   UTIL_LCD_DisplayStringAt(0, 135, (uint8_t *)"Hello 21IC", CENTER_MODE);
    

  30.   UTIL_LCD_DisplayStringAt(0, 150, (uint8_t *)"Press User push-button", CENTER_MODE);
    

  31.   UTIL_LCD_DisplayStringAt(0, 165, (uint8_t *)"to start :", CENTER_MODE);
    

  32.   sprintf(desc,"%s example", BSP_examples[DemoIndex].DemoName);
    

  33.   UTIL_LCD_DisplayStringAt(0, 180, (uint8_t *)desc, CENTER_MODE);
    

  34. }


显示效果：
1026367cb03a409b02.png

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