STM32F407+STemwin学习笔记之STemwin移植

原文链接：http://www.cnblogs.com/NickQ/p/8748011.html

环境：keil5.20  STM32F407ZGT6  LCD(320*240)  STemwin:STemWin_Library_V1.1.2

准备：

STemWIn在裸机上的移植，需要准备STemwin的库（ STemwin:STemWin_Library_V1.1.2.rar  链接：https://pan.baidu.com/s/1ekMm-X7RG5JK185GnV9fFw

提取码：peup ），LCD的空工程（带有LCD画点，读点函数）。

开始移植

第一步：解压STemWin_Library_V1.1.2.rar,目录结构如下

打开目录STemWin_Library_V1.1.2\Libraries\STemWinLibrary522，复制Config,inc,OS,LIB四个目录到工程文件夹中

删除Config中LCDConf_Lin_Template.c，LCDConf_Lin_Template.h文件。

根据需要保留LIB中文件，删除其他文件。此处使用CM4内核的F407，Keil IDE,保留STemWin522_CM4_Keil.lib。

根据是否使用OS，保留OS文件夹中相应文件。此处不使用OS，保留GUI_X.c。

将留下的文件添加进工程，并包含头文件路径。

留下的文件如图所示。

第二步，修改部分文件，

修改GUIConf.c   修改分配给GUI的内存大小，此处为16K

 // Define the available number of bytes available for the GUI
 #define GUI_NUMBYTES  0x4000  //16KB  2018/04/15-17:52:54  By Nick

修改GUIConf.h   配置GUI相关功能

 #ifndef GUICONF_H
 #define GUICONF_H

 //Multi layer/display support
 #define GUI_NUM_LAYERS            2    // Maximum number of available layers

 //Multi tasking support
 #ifdef OS_SUPPORT
  #define GUI_OS                    (1)  // Compile with multitasking support
 #else
  #define GUI_OS                    (0)
 #endif

 //Configuration of touch suppor
 #ifndef   GUI_SUPPORT_TOUCH
   #define GUI_SUPPORT_TOUCH       (1)  // Support touchscreen
 #endif

 //Default font
 #define GUI_DEFAULT_FONT          &GUI_Font6x8

 //Configuration of available packages
 #define GUI_SUPPORT_MOUSE             (1)    /* Support a mouse */
 #define GUI_WINSUPPORT                (1)    /* Use window manager */
 #define GUI_SUPPORT_MEMDEV            (1)    /* Memory device package available */
 #define GUI_SUPPORT_DEVICES           (1)    /* Enable use of device pointers */

 #endif  /* Avoid multiple inclusion */

修改GUIDRV_Template.c   修改画点和读点函数，注意要引入自己的LCD头文件

 /*********************************************************************
 *
 *       _SetPixelIndex
 *
 * Purpose:
 *   Sets the index of the given pixel. The upper layers
 *   calling this routine make sure that the coordinates are in range, so
 *   that no check on the parameters needs to be performed.
 */
 static void _SetPixelIndex(GUI_DEVICE * pDevice, int x, int y, int PixelIndex) {
     //
     // Convert logical into physical coordinates (Dep. on LCDConf.h)
     //
     #if (LCD_MIRROR_X == 1) || (LCD_MIRROR_Y == 1) || (LCD_SWAP_XY == 1)
       int xPhys, yPhys;

       xPhys = LOG2PHYS_X(x, y);
       yPhys = LOG2PHYS_Y(x, y);
     #else
       #define xPhys x
       #define yPhys y
     #endif
     GUI_USE_PARA(pDevice);
     GUI_USE_PARA(x);
     GUI_USE_PARA(y);
     GUI_USE_PARA(PixelIndex);
     {
         lcd_drawpoint(xPhys,yPhys,PixelIndex);  //2018/04/15-18:47:44  By Nick
     }
     #if (LCD_MIRROR_X == 0) && (LCD_MIRROR_Y == 0) && (LCD_SWAP_XY == 0)
       #undef xPhys
       #undef yPhys
     #endif
 }

 /*********************************************************************
 *
 *       _GetPixelIndex
 *
 * Purpose:
 *   Returns the index of the given pixel. The upper layers
 *   calling this routine make sure that the coordinates are in range, so
 *   that no check on the parameters needs to be performed.
 */
 static unsigned int _GetPixelIndex(GUI_DEVICE * pDevice, int x, int y) {
   unsigned int PixelIndex;
     //
     // Convert logical into physical coordinates (Dep. on LCDConf.h)
     //
     #if (LCD_MIRROR_X == 1) || (LCD_MIRROR_Y == 1) || (LCD_SWAP_XY == 1)
       int xPhys, yPhys;

       xPhys = LOG2PHYS_X(x, y);
       yPhys = LOG2PHYS_Y(x, y);
     #else
       #define xPhys x
       #define yPhys y
     #endif
     GUI_USE_PARA(pDevice);
     GUI_USE_PARA(x);
     GUI_USE_PARA(y);
     {
         PixelIndex = lcd_read_gram(xPhys,yPhys);  //2018/04/15-18:47:29  By Nick
     }
     #if (LCD_MIRROR_X == 0) && (LCD_MIRROR_Y == 0) && (LCD_SWAP_XY == 0)
       #undef xPhys
       #undef yPhys
     #endif
   return PixelIndex;
 }

修改 GUIDRV_FlexColor.c文件  配置屏幕尺寸（此处为320*240）,可以用宏，Nick在此不用宏的原因是方便LCD初始化函数自动识别屏幕后，传递给GUI

 #include "Nick_lcd.h"
 #include "GUI.h"
 #include "GUIDRV_FlexColor.h"

 u16 XSIZE_PHYS,YSIZE_PHYS,VXSIZE_PHYS,VYSIZE_PHYS;  //2018/04/15-18:48:10  By Nick

 #ifndef   GUICC_565
   #error Color conversion not defined!
 #endif
 #ifndef   GUIDRV_FLEXCOLOR
   #error No display driver defined!
 #endif

 void LCD_X_Config(void) {              //2018/04/15-18:48:24  By Nick
     // Physical display size
     XSIZE_PHYS  = lcddev.width;// To be adapted to x-screen size   240
     YSIZE_PHYS  = lcddev.height; // To be adapted to y-screen size 320
     VXSIZE_PHYS = XSIZE_PHYS;
     VYSIZE_PHYS = YSIZE_PHYS;
     GUI_DEVICE_CreateAndLink(&GUIDRV_Template_API,GUICC_M565,,);
     LCD_SetSizeEx(,XSIZE_PHYS,YSIZE_PHYS);
     LCD_SetVSizeEx(,VXSIZE_PHYS,VYSIZE_PHYS);
 }

 int LCD_X_DisplayDriver(unsigned LayerIndex, unsigned Cmd, void * pData) {
   int r;
   (void) LayerIndex;
   (void) pData;

   switch (Cmd) {
   case LCD_X_INITCONTROLLER: {
     return ;
   }
   default:
     r = -;
   }
   return r;
 }

在此，修改已完成。

第三步，编写测试程序。

#include "stm32f4xx_conf.h"
#include "GUI.h"
#include "Nick_lcd.h"

int main(void)
{
    lcd_init();        //LCD初始化
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC,ENABLE);//使能CRC时钟，否则STemWin不能使用
    GUI_Init();

    GUI_SetColor(GUI_RED);
    GUI_SetBkColor(GUI_BLUE);
    GUI_SetFont(&GUI_Font24_ASCII);
    GUI_Clear();
    GUI_DispStringAt("Hello World",,);
}

到此可以看到现象。如图

当然，到此STemwin移植就结束了。下一篇将添加触摸屏点击功能。