?? howell.c
字號:
#include " reg52.h"
#include "main.h"
#include "string.h"
unsigned char data dvr_set; //cumputer set or cancel alarm
extern bit flag_ea;
extern unsigned char data Cummun;
unsigned char code My_Array1[6]={0x4a,0x44,0x41,0x43,0x46,0x4b};
extern void delay1ms(unsigned char count);
//extern void com_isr(void);
/*------------------------------------------------------------------
send the data sbuf
------------------------------------------------------------------*/
extern void send_char_com (unsigned char ch)
{
SBUF=ch;
while(TI==0);
TI=0;
}
/* -----------------------------------------------------------------
deal with the dvr inquire command
-----------------------------------------------------------------*/
void alarm_in (void)
{
unsigned char tbuf[8];
unsigned int i=0;
RT_CON=1;
delay1ms(1);
tbuf[0]=0xf6;
if(Cummun==0x00) //2004-8-2 added
tbuf[1]=0x01;
else
tbuf[1]=Cummun;
tbuf[2]=0x4b;
tbuf[3]=0x08;
tbuf[4]=~P0;// & dvr_set);
tbuf[5]=0x00;
tbuf[6]=tbuf[1]+tbuf[2]+tbuf[3]+tbuf[4]+tbuf[5];
do
{
send_char_com(tbuf[i]);
// delay1ms();
i++;
} while(i <7 );
RT_CON=0;
}
extern void howell(unsigned char rbuf1[8])
{
unsigned char data t;
unsigned char data s;
unsigned char data i;
/* if(r_out!=7)
{
r_out = 7;
r_in = 1;
EA=1;
}*/
s=rbuf1[2];
for(i=0;i<5;i++)
{
t=My_Array1[i];
if(t==s)
{
switch(i)
{
case 0:alarm_in();
break;
case 1:P2=~rbuf1[4];
break;
case 2:dvr_set=rbuf1[4];
break;
case 3:
break;
case 4:
break;
}
break;
}
}
// LED=0;
// r_out=7;
// r_in=0;
flag_ea=1;
}
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