1. 实验平台使用百为的STM32F103开发板

2. 例程目录\百为stm32开发板光盘\stm32_gui_lib\Project\Embedded_GUI_Example\EWARM

3. 直接编译遇到一个问题

1. Error[Pe147]: declaration is incompatible with "__nounwind __interwork __softfp unsigned int __iar_builtin_REV16(unsigned int)"
   
2. (declared at line 197 of "D:\IAR Systems\ E:\MCU\STM32\百为stm32开发板光盘\stm32_gui_lib\Libraries\CMSIS\CM3\CoreSupport\core_cm3.h 1124

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4. 解决办法如下，勾选Use CMSIS

5. 去掉 $PROJ_DIR$\..\..\..\Libraries\CMSIS\CM3\CoreSupport，编译通过。

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6. 打开工程，分为GUI_HAL和底层有关的，GUI_Library是上层的鼠标，文字，图像等处理，其实看起来蛮简单的。　JoyHal.c是处理板子上面的一个方向按键，　

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7. 看下主函数

1. int main(void)
   
2. {
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3.   RCC_ClocksTypeDef RCC_Clocks;
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4. 
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5.   /* Set the Vector Table base location at 0x08000000 */
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6.   NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
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7.   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
   
8. 
   
9.   /* Setup SysTick Timer for 10 msec interrupts  */
   
10.   RCC_GetClocksFreq(&RCC_Clocks);
    
11.   if (SysTick_Config(RCC_Clocks.SYSCLK_Frequency / 100))
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12.   {
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13.     /* Capture error */
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14.     while (1);
    
15.   }
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16.   /* configure Systick priority */
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17.   NVIC_SetPriority(SysTick_IRQn, 0x0B);
    
18. 
    
19.   /* Set HW structure parameters */
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20.   HWConfig_SetHardwareParams();
    
21. 
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22. 
    
23.   /* If the LCD Panel has a resolution of 320x240 this command is not needed, it's set by default */
    
24.   /* Set_LCD_Resolution( 320, 240 ); */
    
25. 
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26.   /* Initialize the LCD */
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27.   GL_LCD_Init();
    
28. 
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29.   GL_Clear(GL_White);
    
30. 
    
31.   InputInterface_Init();
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32. 
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33.   ShowLoadingLogo();
    
34. 
    
35. #if TOUCH_SCREEN_CAPABILITY
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36.   /* Check if Calibration has been done*/
    
37.   TS_CheckCalibration();
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38. #endif
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39. 
    
40.   /*Initialize cursor*/
    
41.   GL_Clear(White);
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42.   CursorInit(GL_NULL);
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43. 
    
44.   /* Menu Initialisation*/
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45.   Show_HomeScreen();
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46.   CursorShow(195, 80);
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47. 
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48.   /* Infinite main loop ------------------------------------------------------*/
    
49.   while (1)
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50.   {
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51. 
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52. #if defined(USE_STM3210C_EVAL) || defined(USE_STM32100E_EVAL)
    
53.     /* Catching touch events */
    
54.     if ( TS_IsCalibrationDone() == SET )
    
55. #endif
    
56.     {
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57.       ProcessInputData();
    
58.     }
    
59. 
    
60.     /* Time out calculate for power saving mode */
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61.     TimeOutCalculate();
    
62. 
    
63.     CatchInputEvents();
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64.   }
    
65. }

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8. 方向按键的原理图，程序对应的就是JoyHal.c，joystick翻译成中文就是操纵杆。

9. 看下实际效果，主要用操纵杆移动鼠标，不知道为啥触摸屏没用。可能是板子跳线帽不对。看了一下cursor.c这个文件，里面只有读操纵杆的函数，估计触摸屏本来就没用。

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10. LCD接口是FSMC接口，FSMC本来是存储器的接口，也可以用来驱动LCD。

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11. LCD引脚配置

1. void LCD_CtrlLinesConfig(void)
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2. {
   
3.   GPIO_InitTypeDef GPIO_InitStructure;
   
4.   /* Enable FSMC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
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5.   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
   
6.   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
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7.                          RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG |
   
8.                          RCC_APB2Periph_AFIO, ENABLE);
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9.   /* Set PD.00(D2), PD.01(D3), PD.04(NOE), PD.05(NWE), PD.08(D13), PD.09(D14),
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10.      PD.10(D15), PD.14(D0), PD.15(D1) as alternate function push pull */
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11.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
    
12.                                 GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 |
    
13.                                 GPIO_Pin_15;
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14.   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    
15.   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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16.   GPIO_Init(GPIOD, &GPIO_InitStructure);
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17.   /* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),
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18.      PE.14(D11), PE.15(D12) as alternate function push pull */
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19.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |
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20.                                 GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 |
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21.                                 GPIO_Pin_15;
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22.   GPIO_Init(GPIOE, &GPIO_InitStructure);
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23.   /* Set PF.00(A0 (RS)) as alternate function push pull */
    
24.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
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25.   GPIO_Init(GPIOF, &GPIO_InitStructure);
    
26.   /* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
    
27.   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
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28.   GPIO_Init(GPIOG, &GPIO_InitStructure);
    
29. }

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12. FSMC配置

1. void LCD_FSMCConfig(void)
   
2. {
   
3.   FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
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4.   FSMC_NORSRAMTimingInitTypeDef  p;
   
5. /*-- FSMC Configuration ------------------------------------------------------*/
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6. /*----------------------- SRAM Bank 4 ----------------------------------------*/
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7.   /* FSMC_Bank1_NORSRAM4 configuration */
   
8.   p.FSMC_AddressSetupTime = 1;
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9.   p.FSMC_AddressHoldTime = 0;
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10.   p.FSMC_DataSetupTime = 2;
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11.   p.FSMC_BusTurnAroundDuration = 0;
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12.   p.FSMC_CLKDivision = 0;
    
13.   p.FSMC_DataLatency = 0;
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14.   p.FSMC_AccessMode = FSMC_AccessMode_A;
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15.   /* Color LCD configuration ------------------------------------
    
16.      LCD configured as follow:
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17.         - Data/Address MUX = Disable
    
18.         - Memory Type = SRAM
    
19.         - Data Width = 16bit
    
20.         - Write Operation = Enable
    
21.         - Extended Mode = Enable
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22.         - Asynchronous Wait = Disable */
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23.   FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
    
24.   FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
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25.   FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
    
26.   FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
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27.   FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
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28.   FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
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29.   FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
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30.   FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
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31.   FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
    
32.   FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
    
33.   FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
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34.   FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
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35.   FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
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36.   FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
    
37.   FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
    
38.   FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
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39.   /* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */
    
40.   FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
    
41. }

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13. 画按钮的函数

1. void GL_DrawButtonBMP(uint16_t maxX, uint16_t minX, uint16_t maxY, uint16_t minY, uint8_t* ptrBitmap)
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2. {
   
3.   GL_SetDisplayWindow(maxY, maxX, maxY - minY, maxX - minX);
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4.   GL_DrawBMP(ptrBitmap);
   
5.   GL_SetDisplayWindow(LCD_Height - 1, LCD_Width - 1, LCD_Height, LCD_Width);
   
6. }

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14. 总结起来，这个库其实功能简单，用起来也不复杂的。

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