unsigned char Read_TP_Twice(unsigned int *x,unsigned int *y)
{
unsigned int x1,y1 ;
unsigned int x2,y2 ;
unsigned char flag ;
flag = Read_TP(&x1,&y1) ;
if(flag==0)
return 0 ;
flag = Read_TP(&x2,&y2) ;
if(flag==0)
return 0 ;
if( ((x2<=x1&&x1<x2+ERR_RANGE)||(x1<=x2&&x2<x1+ERR_RANGE))//前后两次采样在+-50内
&&((y2<=y1&&y1<y2+ERR_RANGE)||(y1<=y2&&y2<y1+ERR_RANGE)))
{
*x = (x1+x2)/2 ;
*y = (y1+y2)/2 ;
return 1 ;
}
return 0 ;
}
/*******************************************************************************
Ctp_ISP: Capacitor Touch Pad 中断处理程序
*******************************************************************************/
void Ctp_ISP(void)
{
Read_TP();
}
void Wait_Pen_Up(void)
{
unsigned int x1,y1 ;
while(Read_TP(&x1,&y1)){} ;
}
