能不能帮我解释一下这个函数用ucgui
说明:在LCD上显示实时波形
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void ShowRealTimeWave(void)
{
 GUI_RECT Rect = {0,0,479,200};      //无闪烁显示区域
 int i,j=0;
 OS_CPU_SR  cpu_sr = 0u;
 WaveInfo.Vmax = 2047.0;
 WaveInfo.Vmin = 2047.0;  for (i = 0; i < SAMPDEPTH; i++)
 { //把AD值按比例转换成在LCD上显示的值
  ADCVlaue2ScreenValue = ( ADCConvertedValue*200/4096 ); 
   
  if(WaveInfo.Vmax < ADCConvertedValue)  //找出Vmax Vmin
  {
   WaveInfo.Vmax = ADCConvertedValue; 
  }
  if(WaveInfo.Vmin > ADCConvertedValue)
  {
    WaveInfo.Vmin = ADCConvertedValue; 
  }
  //周期追踪线寻找
  if(ADCVlaue2ScreenValue>98 && ADCVlaue2ScreenValue<102 && j==0 && i>10 && i<200)
  {
   if(ADCVlaue2ScreenValue[i-5]>101 && ADCVlaue2ScreenValue[i+5]<99)
   {
     TrackLine_PriodStart = i;
    j = 1;
   }
  }
  else if(ADCVlaue2ScreenValue>98 && ADCVlaue2ScreenValue<102 && j==1 && i>TrackLine_PriodStart+20 && i<SAMPDEPTH)
  {
   if(ADCVlaue2ScreenValue[i-5]>101 && ADCVlaue2ScreenValue[i+5]<99)
   {
     TrackLine_PriodEnd = i;
    j = 2;
   }
  }
 }
 
 TrackLine_VppMax = 200 - WaveInfo.Vmax*200/4096;  //最大值追踪线
 TrackLine_VppMin = 200 - WaveInfo.Vmin*200/4096;  //最小值追踪线
 
 if(JDQ_ACDC == 1)   //AC耦合
 {
   WaveInfo.Vmax -= 2047.0;
  WaveInfo.Vmin -= 2047.0; 
 }
 WaveInfo.Vmax = (WaveInfo.Vmax/4095 * 3.3 * WaveCtrl.AmpDiv);
 WaveInfo.Vmin = (WaveInfo.Vmin/4095 * 3.3 * WaveCtrl.AmpDiv);
 WaveInfo.Vpp  = WaveInfo.Vmax - WaveInfo.Vmin; 
 WaveInfo.Vrms = WaveInfo.Vpp*1000 / 2828; 
 
 OS_ENTER_CRITICAL();
 GUI_MEMDEV_Draw(&Rect,&Draw,ADCVlaue2ScreenValue,0,0); //GUI无闪烁绘制波形
 OS_EXIT_CRITICAL(); 
}