【STM32L562 DK试用】驱动LCD

【前言】
由于touchGFX没有适配stm32l562这款开发板，所以需要手工驱动LCD。在bsp工程中已经有了LCD的示例。这篇就是根据示例来驱动。
1、在前面printf的工程中，在stm32cubeMX中开启FMC（如果不开启FMC那莫要手工去.conf中开启宏，有点麻烦）

然后在代码生成中，选择不生成：

2、复制STM32Cube_FW_L5_V1.5.1\Drivers\BSP到工程中。

3、在mdk工程把LCD->st7789的驱动添加进工程：

4、把bsp_lcd驱动添加进工程：

5、添加画点画线、字符的库：

6、添加lcd.c到工程，具体实现一个综合的界面，这里算单的使用bsp的示例：

复制

/* Includes ------------------------------------------------------------------*/

#include "main.h"



/** @addtogroup STM32L5xx_HAL_Examples

  * @{

  */



/** @addtogroup BSP

  * @{

  */



/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

#define LCD_FEATURES_NUM        3



/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

static uint8_t LCD_Feature;



/* Private function prototypes -----------------------------------------------*/

static void LCD_SetHint(void);

static void LCD_Show_Feature(uint8_t feature);



/* Private functions ---------------------------------------------------------*/



/**

  * [url=home.php?mod=space&uid=247401]@brief[/url]  LCD demo

  * @param  None

  * @retval None

  */

void LCD_demo(void)

{

  LCD_SetHint();

  LCD_Feature = 0;

  LCD_Show_Feature (LCD_Feature);





  

}



/**

  * @brief  Display LCD demo hint

  * @param  None

  * @retval None

  */

static void LCD_SetHint(void)

{

  /* Clear the LCD */

  UTIL_LCD_Clear(UTIL_LCD_COLOR_WHITE);



  /* Set LCD Demo description */

  UTIL_LCD_FillRect(0, 0, 240, 80, UTIL_LCD_COLOR_BLUE);

  UTIL_LCD_SetTextColor(UTIL_LCD_COLOR_WHITE);

  UTIL_LCD_SetBackColor(UTIL_LCD_COLOR_BLUE);

  UTIL_LCD_SetFont(&Font24);

  UTIL_LCD_DisplayStringAt(0, 0, (uint8_t *)"LCD", CENTER_MODE);

  UTIL_LCD_SetFont(&Font12);

  UTIL_LCD_DisplayStringAt(0, 30, (uint8_t *)"This example shows the different", CENTER_MODE);

  UTIL_LCD_DisplayStringAt(0, 45, (uint8_t *)"LCD Features, use User push-button", CENTER_MODE);

  UTIL_LCD_DisplayStringAt(0, 60, (uint8_t *)"to display next page", CENTER_MODE);



  UTIL_LCD_DrawRect(10, 90, 220, 140, UTIL_LCD_COLOR_BLUE);

  UTIL_LCD_DrawRect(11, 91, 218, 138, UTIL_LCD_COLOR_BLUE);

}



/**

  * @brief  Show LCD Features

  * @param  feature : feature index

  * @retval None

  */

static void LCD_Show_Feature(uint8_t feature)

{

  Point Points[] = {{20, 150}, {50, 150}, {50, 200}};

  Point Points2[] = {{60, 150}, {90, 150}, {90, 200}};



  UTIL_LCD_SetBackColor(UTIL_LCD_COLOR_WHITE);

  UTIL_LCD_FillRect(12, 92, 216, 136, UTIL_LCD_COLOR_WHITE);

  UTIL_LCD_SetTextColor(UTIL_LCD_COLOR_BLACK);



  switch (feature)

  {

    case 0:

      /* Text Feature */



      UTIL_LCD_DisplayStringAt(14, 100, (uint8_t *)"Left aligned Text", LEFT_MODE);

      UTIL_LCD_DisplayStringAt(0, 115, (uint8_t *)"Center aligned Text", CENTER_MODE);

      UTIL_LCD_DisplayStringAt(14, 130, (uint8_t *)"Right aligned Text", RIGHT_MODE);

      UTIL_LCD_SetFont(&Font24);

      UTIL_LCD_DisplayStringAt(14, 150, (uint8_t *)"Font24", LEFT_MODE);

      UTIL_LCD_SetFont(&Font20);

      UTIL_LCD_DisplayStringAt(14, 180, (uint8_t *)"Font20", LEFT_MODE);

      UTIL_LCD_SetFont(&Font16);

      UTIL_LCD_DisplayStringAt(14, 210, (uint8_t *)"Font16", LEFT_MODE);

      break;



    case 1:



      /* Draw misc. Shapes */

      UTIL_LCD_DrawRect(20, 100, 30 , 40, UTIL_LCD_COLOR_BLACK);

      UTIL_LCD_FillRect(60, 100, 30 , 40, UTIL_LCD_COLOR_BLACK);



      UTIL_LCD_DrawCircle(130, 120, 20, UTIL_LCD_COLOR_GRAY);

      UTIL_LCD_FillCircle(195, 120, 20, UTIL_LCD_COLOR_GRAY);



      UTIL_LCD_DrawPolygon(Points, 3, UTIL_LCD_COLOR_GREEN);

      UTIL_LCD_FillPolygon(Points2, 3, UTIL_LCD_COLOR_GREEN);



      UTIL_LCD_DrawEllipse(130, 170, 30, 20, UTIL_LCD_COLOR_RED);

      UTIL_LCD_FillEllipse(195, 170, 30, 20, UTIL_LCD_COLOR_RED);



      UTIL_LCD_DrawHLine(20, 210, 30, UTIL_LCD_COLOR_BLACK);

      UTIL_LCD_DrawLine (100, 220, 220, 190, UTIL_LCD_COLOR_BLACK);

      UTIL_LCD_DrawLine (100, 190, 220, 220, UTIL_LCD_COLOR_BLACK);

      break;



    case 2:





      break;

    default :

      break;

  }

}

7、添加头文件到工程中：

8、在main.c中添加初始化等代码：

复制

 if (LcdInitialized != SET)

  {

    LCD_UTILS_Drv_t lcdDrv;



    /* Initialize the LCD */

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

    {

      Error_Handler();

    }



    /* Set UTIL_LCD functions */

    lcdDrv.DrawBitmap  = BSP_LCD_DrawBitmap;

    lcdDrv.FillRGBRect = BSP_LCD_FillRGBRect;

    lcdDrv.DrawHLine   = BSP_LCD_DrawHLine;

    lcdDrv.DrawVLine   = BSP_LCD_DrawVLine;

    lcdDrv.FillRect    = BSP_LCD_FillRect;

    lcdDrv.GetPixel    = BSP_LCD_ReadPixel;

    lcdDrv.SetPixel    = BSP_LCD_WritePixel;

    lcdDrv.GetXSize    = BSP_LCD_GetXSize;

    lcdDrv.GetYSize    = BSP_LCD_GetYSize;

    lcdDrv.SetLayer    = BSP_LCD_SetActiveLayer;

    lcdDrv.GetFormat   = BSP_LCD_GetFormat;

    UTIL_LCD_SetFuncDriver(&lcdDrv);



    /* Clear the LCD */

    UTIL_LCD_Clear(UTIL_LCD_COLOR_WHITE);



    /* Set the display on */

    if (BSP_LCD_DisplayOn(0) != BSP_ERROR_NONE)

    {

      Error_Handler();

    }



    LcdInitialized = SET;

  }

        

        Display_DemoDescription();

实现效果：