STM32的GUI库使用

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

Error[Pe147]: declaration is incompatible with "__nounwind __interwork __softfp unsigned int __iar_builtin_REV16(unsigned int)"
(declared at line  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 

4. 解决办法如下，勾选Use CMSIS

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

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，　

7. 看下主函数

 int main(void)
 {
   RCC_ClocksTypeDef RCC_Clocks;

   /* Set the Vector Table base location at 0x08000000 */
   NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

   /* Setup SysTick Timer for 10 msec interrupts  */
   RCC_GetClocksFreq(&RCC_Clocks);
   if (SysTick_Config(RCC_Clocks.SYSCLK_Frequency / ))
   {
     /* Capture error */
     while ();
   }
   /* configure Systick priority */
   NVIC_SetPriority(SysTick_IRQn, 0x0B);

   /* Set HW structure parameters */
   HWConfig_SetHardwareParams();

   /* If the LCD Panel has a resolution of 320x240 this command is not needed, it's set by default */
   /* Set_LCD_Resolution( 320, 240 ); */

   /* Initialize the LCD */
   GL_LCD_Init();

   GL_Clear(GL_White);

   InputInterface_Init();

   ShowLoadingLogo();

 #if TOUCH_SCREEN_CAPABILITY
   /* Check if Calibration has been done*/
   TS_CheckCalibration();
 #endif

   /*Initialize cursor*/
   GL_Clear(White);
   CursorInit(GL_NULL);

   /* Menu Initialisation*/
   Show_HomeScreen();
   CursorShow(, );

   /* Infinite main loop ------------------------------------------------------*/
   while ()
   {

 #if defined(USE_STM3210C_EVAL) || defined(USE_STM32100E_EVAL)
     /* Catching touch events */
     if ( TS_IsCalibrationDone() == SET )
 #endif
     {
       ProcessInputData();
     }

     /* Time out calculate for power saving mode */
     TimeOutCalculate();

     CatchInputEvents();
   }
 }

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。

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。

11. LCD引脚配置

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

12. FSMC配置

 void LCD_FSMCConfig(void)
 {
   FSMC_NORSRAMInitTypeDef  FSMC_NORSRAMInitStructure;
   FSMC_NORSRAMTimingInitTypeDef  p;
 /*-- FSMC Configuration ------------------------------------------------------*/
 /*----------------------- SRAM Bank 4 ----------------------------------------*/
   /* FSMC_Bank1_NORSRAM4 configuration */
   p.FSMC_AddressSetupTime = ;
   p.FSMC_AddressHoldTime = ;
   p.FSMC_DataSetupTime = ;
   p.FSMC_BusTurnAroundDuration = ;
   p.FSMC_CLKDivision = ;
   p.FSMC_DataLatency = ;
   p.FSMC_AccessMode = FSMC_AccessMode_A;
   /* Color LCD configuration ------------------------------------
      LCD configured as follow:
         - Data/Address MUX = Disable
         - Memory Type = SRAM
         - Data Width = 16bit
         - Write Operation = Enable
         - Extended Mode = Enable
         - Asynchronous Wait = Disable */
   FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
   FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
   FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_SRAM;
   FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
   FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
   FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
   FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
   FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
   FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
   FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
   FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
   FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
   FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
   FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
   FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
   FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
   /* BANK 4 (of NOR/SRAM Bank 1~4) is enabled */
   FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
 }

13. 画按钮的函数

 void GL_DrawButtonBMP(uint16_t maxX, uint16_t minX, uint16_t maxY, uint16_t minY, uint8_t* ptrBitmap)
 {
   GL_SetDisplayWindow(maxY, maxX, maxY - minY, maxX - minX);
   GL_DrawBMP(ptrBitmap);
   GL_SetDisplayWindow(LCD_Height - , LCD_Width - , LCD_Height, LCD_Width);
 }

14. 总结起来，这个库其实功能简单，用起来也不复杂的。