本文博客链接:http://blog.csdn.net/jdh99,作者:jdh
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： [cpp] view plain copy
- <code class="language-cpp">/*********************************************************************
- *
- * 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);
- }</code>
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 */
Printf**(); /* 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
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