STM32F407上移植emwin



STM32F407上移植emwin

本文博客链接:http://blog.csdn.net/jdh99,作者:jdh,转载请注明.

环境：

主机:WIN8

开发环境:MDK5.13

emwin版本：STemWinLibrary522

mcu: stm32f407VGT6

开发板：安富莱STM32-X3

TFT型号：艾蓝2.8寸TFT，主控芯片：ILI9325

说明:

在STM32F407上移植emwin，驱动屏幕接口为FSMC

移植步骤：

1.MDK新建文件结构：

2.GUIConf.c文件修改

    a)增加宏定义：

#define GUI_NUMBYTES  (1024 * 80)
#define GUI_BLOCKSIZE 0x80

  b)GUI_X_Config(void)函数中增加语句：

GUI_ALLOC_SetAvBlockSize(GUI_BLOCKSIZE);

   修改后：

/*********************************************************************
*
*       GUI_X_Config
*
* Purpose:
*   Called during the initialization process in order to set up the
*   available memory for the GUI.
*/
void GUI_X_Config(void) {
  //
  // 32 bit aligned memory area
  //
  static U32 aMemory[GUI_NUMBYTES / 4];
  //
  // Assign memory to emWin
  //
  GUI_ALLOC_AssignMemory(aMemory, GUI_NUMBYTES);
	
	GUI_ALLOC_SetAvBlockSize(GUI_BLOCKSIZE);
  //
  // Set default font
  //
  GUI_SetDefaultFont(GUI_FONT_6X8);
}

3.LCDConf_FlexColor_Template.c文件修改

    a)增加宏定义:

#define LCD_REG_ADDRESS           	BANK1_LCD_REG
#define LCD_DATA_ADDRESS          	BANK1_LCD_RAM

      这两个BANK宏定义在tft驱动文件中定义：

#define BANK1_BASE		((uint32_t)(0x60000000 | 0x00000000))
#define BANK1_LCD_RAM	*(__IO uint16_t *)(BANK1_BASE +  (1 << (18 + 1)))	/* FSMC 16位总线模式下，FSMC_A18口线对应物理地址A19 */
#define BANK1_LCD_REG	*(__IO uint16_t *)(BANK1_BASE)

       具体值和接线相关

     b)具体函数修改

/*********************************************************************
*
*       Local functions
*
**********************************************************************
*/
/********************************************************************
*
*       LcdWriteReg
*
* Function description:
*   Sets display register
*/
static void LcdWriteReg(U16 Data) {
  // ... TBD by user
	LCD_REG_ADDRESS = Data;
}

/********************************************************************
*
*       LcdWriteData
*
* Function description:
*   Writes a value to a display register
*/
static void LcdWriteData(U16 Data) {
  // ... TBD by user
	LCD_DATA_ADDRESS=Data;
}

/********************************************************************
*
*       LcdWriteDataMultiple
*
* Function description:
*   Writes multiple values to a display register.
*/
static void LcdWriteDataMultiple(U16 * pData, int NumItems) {
  while (NumItems--) {
    // ... TBD by user
	  LCD_DATA_ADDRESS=*pData++;
  }
}

/********************************************************************
*
*       LcdReadDataMultiple
*
* Function description:
*   Reads multiple values from a display register.
*/
static void LcdReadDataMultiple(U16 * pData, int NumItems) {
  while (NumItems--) {
    // ... TBD by user
	  *pData++=LCD_DATA_ADDRESS;
  }
}

/*********************************************************************
*
*       Public functions
*
**********************************************************************
*/
/*********************************************************************
*
*       LCD_X_Config
*
* Function description:
*   Called during the initialization process in order to set up the
*   display driver configuration.
*
*/
void LCD_X_Config(void) {
  GUI_DEVICE * pDevice;
  CONFIG_FLEXCOLOR Config = {0};
  GUI_PORT_API PortAPI = {0};
  //
  // Set display driver and color conversion
  //
  pDevice = GUI_DEVICE_CreateAndLink(GUIDRV_FLEXCOLOR, GUICC_565, 0, 0);
  //
  // Display driver configuration, required for Lin-driver
  //
  LCD_SetSizeEx (0, XSIZE_PHYS , YSIZE_PHYS);
  LCD_SetVSizeEx(0, VXSIZE_PHYS, VYSIZE_PHYS);
  //
  // Orientation
  //
  //Config.Orientation = GUI_SWAP_XY | GUI_MIRROR_Y;
  Config.FirstCOM = 0;
  Config.FirstSEG = 0;
  //Config.Orientation = GUI_MIRROR_X | GUI_MIRROR_Y;
  Config.NumDummyReads = 2;
  GUIDRV_FlexColor_Config(pDevice, &Config);
  //
  // Set controller and operation mode
  //
  PortAPI.pfWrite16_A0  = LcdWriteReg;
  PortAPI.pfWrite16_A1  = LcdWriteData;
  PortAPI.pfWriteM16_A1 = LcdWriteDataMultiple;
  PortAPI.pfReadM16_A1  = LcdReadDataMultiple;
  GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66708, GUIDRV_FLEXCOLOR_M16C0B16);
	//GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66709, GUIDRV_FLEXCOLOR_M16C0B16);
}

      其中：GUIDRV_FlexColor_SetFunc函数说明：

     

       因为主控芯片为ILI9325,所以参数选择GUIDRV_FLEXCOLOR_F66708

4.GUI_X.c文件修改

      此文件控制的是GUI中的延时，可以用定时器配合实现，修改如下：

      

/*********************************************************************
*
*       Global data
*/
volatile GUI_TIMER_TIME OS_TimeMS;

/*********************************************************************
*
*      Timing:
*                 GUI_X_GetTime()
*                 GUI_X_Delay(int)

  Some timing dependent routines require a GetTime
  and delay function. Default time unit (tick), normally is
  1 ms.
*/

extern __IO int32_t g_iRunTime;
GUI_TIMER_TIME GUI_X_GetTime(void) { 
  //return OS_TimeMS; 
	return g_iRunTime;
}

void GUI_X_Delay(int ms) { 
//  int tEnd = OS_TimeMS + ms;
//  while ((tEnd - OS_TimeMS) > 0);
	
	int tEnd = g_iRunTime + ms;
	while ((tEnd - g_iRunTime) > 0);
}

5.主函数实现：

int main(void)
{
	/*
		ST固件库中的启动文件已经执行了 SystemInit() 函数，该函数在 system_stm32f4xx.c 文件，主要功能是
	配置CPU系统的时钟，内部Flash访问时序，配置FSMC用于外部SRAM
	*/

	bsp_Init();		/* 硬件初始化 */
	PrintfLogo();	/* 打印例程信息到串口1 */
	vLCDInit();
	
//	vClearScreen(Green);
//	vSetTextColor(Red);		
//	vPutString(20,0, "NanJing RF Tracking!!!!!");
//	ShowImage();
	//DemoFatFS();	/* SD卡文件系统演示程序 */
	//RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE); 
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC, ENABLE);
    GUI_Init();
    GUI_DispString("I am jdh!");

	while (1)
	{
		GUI_Delay(1000);
	}
}

注意：

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC, ENABLE);

函数是必须的，否则GUI将不工作，这是ST公司防止其他芯片用此GUI的措施。

效果：

参考资料：

1.STemWin5.22移植笔记
2.《野火emwin实战指南V1.0.0》

3.安富莱源程序：x3开发板_裸机STemWin5.20