tx2.bak

单片机与ALTEC温控仪的通讯

#include<REG51.H>
#include<ABSACC.H>
char EON(unsigned char v);
void w_sendc(unsigned char c);
void delay(unsigned long l);
void set_data(unsigned char d1,unsigned char d2,char v,unsigned char w);
sbit flag1   =P1^2;
sbit flag2   =P2^3;
unsigned char code s_con[10]={0x30, 0x31+0x80, 0x32+0x80, 0x33, 0x34+0x80, 0x35, 0x36, 0x37+0x80, 0x38+0x80, 0x39};
main()
{
 TMOD=0x20;					//T1方式2
 TL1=0x0f3;					//2400
 TH1=0x0f3;
 SCON=0x50;					//串口方式1
 PCON=0;
 TR1=1;
 delay(20000);
 flag1=1;
 flag2=0;
 set_data(0x53,0x4c+0x80,81,5);
 set_data(0x58+0x80,0x53,1,0)
 /*w_sendc(4+0x80);
 w_sendc(0x30);
 w_sendc(0x30);
 w_sendc(0x30);
 w_sendc(0x30);
 w_sendc(2+0x80);
 w_sendc(0x58+0x80);
 w_sendc(0x53);
 w_sendc(0x30);
 w_sendc(0x30);
 w_sendc(0x30);
 w_sendc(0x31+0x80);
 w_sendc(3);
 w_sendc(9);*/
 while(1)
 	{
	  delay(50000);
	  flag1=!flag1;
	  flag2=!flag2;
	 }
}

char EON(unsigned char v)
{
	unsigned char i,j;
	j=0;
	for (i=0x80 ; i!=0 ; i >>= 1)
	{
		if (i & v) j=0x80-j;
	}
	return j+v;
}

void w_sendc(unsigned char c)
{
	TI=0;
	SBUF=c;
	while(TI==0);

}

void set_data(unsigned char d1,unsigned char d2,char v,unsigned char w)
{
	char t,i;

	if(v<0) t=0-v;
	else	t=v;
	w_sendc(4+0x80);
	w_sendc(0x30);
	w_sendc(0x30);
	w_sendc(0x30);
	w_sendc(0x30);
	w_sendc(0x2+0x80);
	i=0;
	w_sendc(d1);
	i ^= d1;
	w_sendc(d2);
	i ^= d2;
	if (v<0)
	{
		w_sendc(0x2d);
		i ^= 0x2d;
	};
	w_sendc(s_con[((t/100)%10)]);
	i ^= s_con[((t/100)%10)];
    w_sendc(s_con[((t/10)%10)]);
	i ^= s_con[((t/10)%10)];
	w_sendc(s_con[(t%10)]);
	i ^= s_con[(t%10)];

	w_sendc(0x2e);
	i ^=0x2e;
	if(w>=10)
		{
    		w_sendc(s_con[(w/10)%10]);
			i ^= s_con[(w/10)%10];
		 };
	w_sendc(s_con[(w%10)]);
	i ^= s_con[(w%10)];
		 
	w_sendc(3);
	i ^= 3;
	w_sendc(EON(i));
	delay(1000);
}
/*char RECEIVE_DATA(void)
{
	char d;
	RI=0;
	d=SBUF;
	while(RI==0);
	return(d);
}
*/
void delay(unsigned long l)
{
	while(l--);
}