switch.c

车库的接受和发送代码

//unsigned char code key[4][4]={{0xff,0xff,0x33,0xcc},{0xff,0xff,0xcc,0x33},{0xff,0xff,0x66,0x99},{0xff,0xff,0x99,0x66}}
#include<reg767.h>
#include "mydefine.h"

#define UP_KEY       _CMPREF
#define DOWN_KEY     _CMP1


unsigned char Command=0;
unsigned int  Time=65535;
unsigned char Current_ad=0;
unsigned char Light_Ray_ad=0;

unsigned char Receive_State=0;
unsigned char Back_Receive_char;
unsigned char Up_Key_read_count=0;
unsigned char Down_Key_read_count=0;
unsigned char Msec=0;

//**************************************************************************//
//			  Comm Interrupt
//**************************************************************************//
void Comm(void) interrupt 4 using 1
{
	unsigned char Receive_char;
	if(RI)
	{
	    
		Receive_char=SBUF;
		RI=0;
		switch(Receive_State)
		{
	 	case 0:
	    	    if(Receive_char==0xff)Receive_State=1;
		 		break;
	 	case 1:
	    	    if(Receive_char==0xff)
				{
					Receive_State=1;
				}
				else
				{
				    Receive_State=2;
					Back_Receive_char=Receive_char;
				};
		 		break;
		 case 2:
			    if(Receive_char==0xff)
				{
				   Receive_State=1;
		        }
				else if((~Receive_char)==Back_Receive_char)
				{
				    if(Receive_char==0xcc)
					{
					   Command=UP;
					}
					else if(Receive_char==0x33)
					{
					   Command=DOWN;
					}
					else if(Receive_char==0x99)
				    {
					   Command=LIGHT_ON;
					}
					else if(Receive_char==0x66)
					{
					   Command=LIGHT_OFF;
					};
				    Receive_State=0;
				}
				else
				{
					Receive_State=0;
	
				};
		 		break;
		};
	  }
      TI=0;
}
//**************************************************************************//
//			  Timer0 Interrupt		   100ms
//**************************************************************************//
void Timer0(void) interrupt 1 using 2
{

	   TL0  =0xb0;
	   TH0  =0x3c;
//_____________________read current____________________

       ADCON|=0;			  //????
       ADCS=1;
       while(!ADCI);
       Current_ad=DAC0;
	   ADCI=0;
	   ADCON&=0xfc;
//_____________________read light ray__________________     
       ADCON|=1;
       ADCS=1;				  //?????
       while(!ADCI);
       Light_Ray_ad=DAC0;
	   ADCI=0;
	   ADCON&=0xfc;
//_____________________read  key_______________________
	   if(UP_KEY==0)
	   {
		 if(Up_Key_read_count<KEY_DELAY)Up_Key_read_count++;
	   }
	   else
	   {
		 if(Up_Key_read_count>KEY_DELAY)
		 {
		     Command=UP;
		 };
		 Up_Key_read_count=0;

	   };


	   if(DOWN_KEY==0)
	   {
		 if(Down_Key_read_count<KEY_DELAY)Down_Key_read_count++;
	   }
	   else
	   {
		 if(Down_Key_read_count>KEY_DELAY)
		 {
		     Command=DOWN;;
		 };
		 Down_Key_read_count=0;

	   };
//_____________________timer count________________________ 
	  Msec++;
	  if(Msec>9)
	  {
			Msec=0;
	  		if(Time<LIGHT_DELAY)Time++;
	  };

}