main.c

51单片机与SL811HST做从机的鼠标程序

#include <reg51.h>
#include <sl811.h>
//#include <des.h>
//#include <varial.h>
extern  bit timeout;
extern  bit enum_done;
extern  unsigned char sof_cnt;
extern  unsigned char key_current;
/*******************************************************/
void  main(void)
{
unsigned char int_status;
  C51_init();

 while(TRUE)
  {
   int_status=SL811Read(IntStatus);//0DH REGISTER
   if(int_status & USB_RESET_DONE)
     SL811s_init(); 
    else  if(int_status & EP0_DONE)
	 ep0_isr();

	else if(int_status & EP1_DONE)
     ep1_isr();
	else if(int_status & SOF_DONE)
	sof_isr();

	 if(enum_done)
	 {
	  audio_key_scan();
	   //timeout=0;
 	  sof_cnt++;

	  if(sof_cnt>=4)
	   {
	    //SL811Write(CtrlReg,0x40);
      /* do
        {
		 key_current=P1;
  	     if((key_current&0xff)!=0xff)
		    {  Delay();
			   
			  key_current=P1;
              if((key_current&0xff)!=0xff)
			    { 
			     
				  if((~key_current)!=0)
				      {
					  SL811Write(CtrlReg,0x10);
					  Delay();
					  Delay();
					  Delay();
					 SL811Write(IntEna,0x63);				//06h enable SOF, EP0, EP1, USB Reset interrupts 
                     SL811Write(IntStatus,0xff);				//0dh clear all interrupts
                     SL811Write(CtrlReg,0x21);
                     EP0A_OUT_Arm(EP0_LEN);
					  }
				 }
			   }
			 } while(sof_cnt!=0);*/
		 }

	 
	  }
	 
   }
  }