p_alarm.c

这是监视器行业常见的键盘与球机通讯协议的C语言源代码

#include "config.h"

//unsigned char receive_buf[4];
//unsigned char recv_count;
/*
unsigned char data1,data3,data4,datax;
unsigned char bdata data2;
sbit ext_fg = data2^0;

void (code *rr)(unsigned char rc);
*/

bit alarm_fg;
bit alarm_fg1;
void alarm_word1(unsigned char rc);
void alarm_word2(unsigned char rc);
void alarm_word3(unsigned char rc);
void alarm_word4(unsigned char rc);
void (code *rs)(unsigned char rc);

extern void alarm_word1(unsigned char rc) using 1
{
	if (rc == 0xfa)
	{
		rr = alarm_word2;
		alarm_fg1 = 1;
	}
}

extern void alarm_word2(unsigned char rc) using 1
{
	data2 = rc;
	rr = alarm_word3;
}

void alarm_word3(unsigned char rc) using 1
{
	data3 = rc;
	rr = alarm_word4;
}

void alarm_word4(unsigned char rc) using 1
{
	//rr = alarm_word1;
	rr = rs;
	if (rc == 0xaf)
	{
		switch( data2)
		{
			case 0x01:
				if (data3 == 0xff)
					alarm_fg = 1;
				break;
			case 0x02:
				call_pre_fg = 1;
				seq[15] = data3;
				rr = rs;
				break;
			default:
				break;
		}		
	}
}
/*extern unsigned char pdata* alarm_receive(unsigned char count,unsigned char time)
{
  	reset_wdog();
  	while (recv_count < count && i < time)
  	{
    	delay_xms(1);
    	i++;
  	}
  	if(i >= time)
  	{
    	for(i = 0;i < count;i ++)
		{
		  	receive_buf[i]=0;
		}
  	}
  	reset_wdog();
  	return &receive_buf[0];
}*/