Emwin5.22 触摸屏没反应

xshenpan

平台：战舰F1大板
OS   ：UCOSII 2.98
STemwin5.22
LCD : 正点原子3.5寸  NT35310 XPT2046
PS：下载EMWIN-UCOSIII扩展例程后触摸屏校准时的数据都是4095，换了一个2.8的屏读到的数据也是4095
触摸屏移植上去后在下面两个函数能读到触摸数据
int  GUI_TOUCH_X_MeasureX(void) {
int result;
result = TouchReadXY(XPT2046_RDX);
return result;
}

int  GUI_TOUCH_X_MeasureY(void) {
int result;
result = TouchReadXY(XPT2046_RDY);
return result;
}

10ms定时调用GUI_TOUCH_Exec()
static void tmrCb_Touch(void *p_tmr, void *p_arg)
{
(void)p_arg;
GUI_TOUCH_Exec();
}

触摸校准和demo任务
void EmWinDemo(void *p_arg)
{
WM_SetCreateFlags(WM_CF_MEMDEV);
GUI_Init();
TouchCalibrate();
for(;;)
{
GUIDEMO_Main();
}
}


当程序执行到TouchCalibrate.c里这个函数时，获取的State成员变量总是为0，可是GUI_TOUCH_X_MeasureY(),GUI_TOUCH_X_MeasureX()有数据读出来。
static void _WaitForPressedState(int Pressed) {
  GUI_PID_STATE State;
  do {
    GUI_TOUCH_GetState(&State);
    GUI_Delay(1);
    if (State.Pressed == Pressed) {
      int TimeStart = GUI_GetTime();
      do {
        GUI_TOUCH_GetState(&State);
        GUI_Delay(1);
        if (State.Pressed != Pressed) {
          break;
        } else if ((GUI_GetTime() - 50) > TimeStart) {
          return;
        }
      } while (1);
    }
  } while (1);
}
大神们帮帮忙


====================================TouchCalibrate.c=========================================

[mw_shl_code=c,true]#include "GUI.h" #include "touch_calibrate.h" /******************************************************************** * * Static data * ********************************************************************* */ static const char * _acPos[] = { "(upper left position)", "(lower right position)" }; /********************************************************************* * * Static code * ********************************************************************** */ /********************************************************************* * * _WaitForPressedState * * Purpose: * Waits until the touch is in the given pressed state for at least 250 ms */ static void _WaitForPressedState(int Pressed) { GUI_PID_STATE State; do { GUI_TOUCH_GetState(&State); GUI_Delay(1); if (State.Pressed == Pressed) { int TimeStart = GUI_GetTime(); do { GUI_TOUCH_GetState(&State); GUI_Delay(1); if (State.Pressed != Pressed) { break; } else if ((GUI_GetTime() - 50) > TimeStart) { return; } } while (1); } } while (1); } /********************************************************************* * * _DispStringCentered * * Purpose: * Shows the given text horizontally and vertically centered */ static void _DispStringCentered(const char * pString) { GUI_RECT Rect; Rect.x0 = Rect.y0 = 0; Rect.x1 = LCD_GetXSize() - 1; Rect.y1 = LCD_GetYSize() - 1; GUI_DispStringInRect(pString, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER); } /********************************************************************* * * _GetPhysValues * * Purpose: * Asks the user to press the touch screen at the given position * and returns the physical A/D values */ static void _GetPhysValues(int LogX, int LogY, int * pPhysX, int * pPhysY, const char * pString) { char acText[] = "Press here"; GUI_RECT Rect; int FontSizeY, Align; FontSizeY = GUI_GetFontSizeY(); GUI_Clear(); GUI_SetColor(GUI_BLACK); _DispStringCentered("Runtime calibration,\n" "please touch the screen\n" "at the center of the ring."); /* Ask user to press the touch */ /* Calculate the rectangle for the string */ Rect.y0 = LogY - FontSizeY; Rect.y1 = LogY + FontSizeY; if (LogX < LCD_GetXSize() / 2) { Rect.x0 = LogX + 15; Rect.x1 = LCD_GetXSize(); Align = GUI_TA_LEFT; } else { Rect.x0 = 0; Rect.x1 = LogX - 15; Align = GUI_TA_RIGHT; } /* Show the text nearby the ring */ GUI_DispStringInRect(acText, &Rect, Align | GUI_TA_TOP); GUI_DispStringInRect(pString, &Rect, Align | GUI_TA_BOTTOM); /* Draw the ring */ GUI_FillCircle(LogX, LogY, 10); GUI_SetColor(GUI_WHITE); GUI_FillCircle(LogX, LogY, 5); GUI_SetColor(GUI_BLACK); /* Wait until touch is pressed */ _WaitForPressedState(1); *pPhysX = GUI_TOUCH_GetxPhys(); *pPhysY = GUI_TOUCH_GetyPhys(); /* Wait until touch is released */ _WaitForPressedState(0); } /******************************************************************** * * _Explain * * Purpose: * Shows a text to give a short explanation of the sample program */ static void _Explain(void) { _DispStringCentered("This sample shows how\n" "a touch screen can be\n" "calibrated at run time.\n" "Please press the touch\n" "screen to continue..."); GUI_DispStringHCenterAt("TOUCH_Calibrate", LCD_GetXSize() / 2, 5); _WaitForPressedState(1); _WaitForPressedState(0); } /********************************************************************* * * Public code * ********************************************************************** */ /********************************************************************* * * MainTask */ void TouchCalibrate(void) { int aPhysX[2], aPhysY[2], aLogX[2], aLogY[2], i; GUI_SetBkColor(GUI_WHITE); GUI_Clear(); GUI_SetColor(GUI_BLACK); GUI_SetFont(&GUI_Font13B_ASCII); _Explain(); /* Set the logical values */ aLogX[0] = 15; aLogY[0] = 15; aLogX[1] = LCD_GetXSize() - 15; aLogY[1] = LCD_GetYSize() - 15; /* Get the physical values of the AD converter for 2 positions */ for (i = 0; i < 2; i++) { _GetPhysValues(aLogX, aLogY, &aPhysX, &aPhysY, _acPos); } /* Use the physical values to calibrate the touch screen */ GUI_TOUCH_Calibrate(0, aLogX[0], aLogX[1], aPhysX[0], aPhysX[1]); /* Calibrate X-axis */ GUI_TOUCH_Calibrate(1, aLogY[0], aLogY[1], aPhysY[0], aPhysY[1]); /* Calibrate Y-axis */ /* Display the result */ GUI_CURSOR_Show(); GUI_Clear(); _DispStringCentered("Congratulation, your\n" "touch screen has been\n" "calibrated. Please use\n" "the cursor to test\n" "the calibration..."); GUI_Delay(500); /* Let the user play */ // while(1) { // GUI_PID_STATE State; // GUI_TOUCH_GetState(&State); // if (State.Pressed == 1) { // GUI_FillCircle(State.x, State.y, 3); // } // GUI_Delay(10); // } } [/mw_shl_code]

================================main.c==================================================

[mw_shl_code=c,true]#include "stm32f10x.h" #include "ucos_ii.h" #include "app_cfg.h" #include "bsp.h" #include "touch_calibrate.h" #include "GUIDEMO.h" static OS_STK LedRunStatusStk[START_UP_TASK_STK_SIZE]; static OS_STK EmWinDemoStk[EMWIN_DEMO_TASK_STK_SIZE]; static OS_STK StartUpTaskStk[START_UP_TASK_STK_SIZE]; int main(void) { BSPInit(); OSInit(); OSTaskCreate(StartUpTask, (void*)0, &StartUpTaskStk[START_UP_TASK_STK_SIZE-1], START_UP_TASK_PRIO ); OSStart(); return 0; } /** ** ???????????????? ** LED???? **/ static void LedRunStatusTask(void *p_arg) { for(;;) { GPIO_ResetBits(GPIOB,GPIO_Pin_5); OSTimeDly(100); GPIO_SetBits(GPIOB,GPIO_Pin_5); OSTimeDly(100); GPIO_ResetBits(GPIOB,GPIO_Pin_5); OSTimeDly(100); GPIO_SetBits(GPIOB,GPIO_Pin_5); OSTimeDly(2000); } } /** ** wmWin Demo ???? **/ extern void GUIDEMO_Main(void); void EmWinDemo(void *p_arg) { WM_SetCreateFlags(WM_CF_MEMDEV); GUI_Init(); TouchCalibrate(); for(;;) { GUIDEMO_Main(); } } /* ???????????????? GUI_TOUCH_Exec() 100??×ó?? */ static void tmrCb_Touch(void *p_tmr, void *p_arg) { (void)p_arg; GUI_TOUCH_Exec(); } /** ** ???????? ** **/ void StartUpTask(void *p_arg) { INT8U err; OS_TMR *tmr_tp; OSTaskCreate( LedRunStatusTask, (void*)0, &LedRunStatusStk[LED_RUN_STATUS_TASK_STK_SIZE-1], LED_RUN_STATUS_TASK_PRIO); OSTaskCreate( EmWinDemo, (void*)0, &EmWinDemoStk[EMWIN_DEMO_TASK_STK_SIZE-1], EMWIN_DEMO_TASK_PRIO); tmr_tp = OSTmrCreate( 1, // 1, OS_TMR_OPT_PERIODIC, &tmrCb_Touch, (void *)0, (INT8U *)"touch exec", &err); OSTmrStart(tmr_tp,&err); OSTaskDel(OS_PRIO_SELF); } [/mw_shl_code]

xshenpan

已解决，还是要先使用TOUCH_Sample.c的示例测出AD值然后在LCD_X_Config()里配置
GUI_TOUCH_Calibrate(GUI_COORD_X,0,XSIZE_PHYS-1,TOUCH_AD_LEFT,TOUCH_AD_RIGHT);
GUI_TOUCH_Calibrate(GUI_COORD_Y,0,YSIZE_PHYS-1,TOUCH_AD_TOP,TOUCH_AD_BOTTOM);
校准才能，然后才能在运行时校准。。。。