homesec1.c

This Home Security hardware and software. The CPU is MCS-51 series. The source code is developed b

// 瘤糯捞 焊靛 七傀绢
// 哪颇老矾 : KEIL C DEMO
// 2003.12.15
// 公茄抛农愁矾瘤 
#include <AT89X51.h>
// 屈 急攫
#define byte	unsigned char
// 副饭捞 柯 烹脚 内靛 
#define RLY0_ON	11
#define RLY1_ON	12
#define RLY2_ON	13
#define RLY3_ON	14
#define RLY4_ON	15
#define RLY5_ON	16
#define RLY6_ON	17
#define RLY7_ON	18
// 副饭捞 坷橇 烹脚 内靛 
#define RLY0_OFF	21
#define RLY1_OFF	22
#define RLY2_OFF	23
#define RLY3_OFF	24
#define RLY4_OFF	25
#define RLY5_OFF	26
#define RLY6_OFF	27
#define RLY7_OFF	28
// 季辑 柯 烹脚 内靛 
#define SEN0_ON	31
#define SEN1_ON	32
#define SEN2_ON	33
#define SEN3_ON	34
#define SEN4_ON	35
#define SEN5_ON	36
#define SEN6_ON	37
#define SEN7_ON	38
// 季辑 坷橇 烹脚 内靛 
#define SEN0_OFF	41
#define SEN1_OFF	42
#define SEN2_OFF	43
#define SEN3_OFF	44
#define SEN4_OFF	45
#define SEN5_OFF	46
#define SEN6_OFF	47
#define SEN7_OFF	48
// 傈眉 蔼 夸没 内靛 
#define SEN_RQ		51
// 器飘 巧 概俏
sbit lamp = P3^2;
sfr sensor = 0x80;//P0
sfr relay = 0xA0; //P2
// 烹脚 荐脚 滚欺 
#define rsize 20
#define RTIME	1
byte rbuf[rsize];
byte rcount=0,rtime=0,pcount=0;
byte rbuf1, rbuf2;
byte oldBuf=255;
bit isTx;
// ETC
#define LAMPTIME 5000

// 老矫 措扁 窃荐
delay(byte d)
{
	byte d2;
	while(d--){
		d2 = 0xff;
		while(d2--);
	}
}
// 烹脚 价脚 措扁 窃荐
wait_ti()
{
	byte i = 255;
	while(!TI && i--);
}
// sensor ON/OFF 内靛 价脚 
send_sensor_code(byte b)
{
	byte i;
	byte oldB,newB;
	for(i=0;i<8;i++){
		wait_ti();
                oldB=oldBuf & (1 << i);
                newB=b & (1 << i);

		if (oldB != newB) {
			if (newB) SBUF=SEN0_OFF + i; 	
			else SBUF = SEN0_ON + i;			
	        }
	}

	oldBuf=b;
}
// 林 窃荐 
main()
{
	int lamp_count;
	byte sen_buf;
	// 扁夯蔼 汲沥 
	// SP = 0x50;
	relay = 0x00;
	// 烹脚 棺 烹脚 牢磐反飘 汲沥
	EA	= 0;
	PCON	= 0;//
	SCON	= 0x50;
	TMOD	= 0x21;
	TH1	= 0x0fd;
	TL0	= 0x00;
	TH0	= 0x00;
	TR1 = 1;
	ES = 1; 
	EA = 1;
	// 泪矫 措扁 
	delay(255);
	// 皑瘤 涝仿 烹脚栏肺 免仿
	sen_buf = sensor;
	send_sensor_code(sen_buf);
	while(1){
		if(!lamp_count--){
			lamp = !lamp;// 伐橇 柯 坷橇 
			lamp_count = LAMPTIME;
		}
		if((rcount>0)&&(rtime--)) continue;// 烹脚 荐脚 辆丰 眉农 (矫埃瞒)
			
		if((rcount==0)&&(sen_buf!=sensor)){
			sen_buf =sensor;
			send_sensor_code(sen_buf);
		}
		if(rcount==0) continue;
		if(pcount>=rcount){
			 rcount = pcount = 0;
			 continue;
		}
		rtime = 0;
		rbuf2 = rbuf[pcount++];
		if (rbuf2==SEN_RQ){	// 季辑 皑瘤 葛滴 夸没 窍搁 
			sen_buf = sensor;
			send_sensor_code(sen_buf);	// 季辑 惑怕 焊郴绊
		} else
		if (rbuf2>=RLY0_ON && rbuf2<=RLY7_ON){	// 副饭捞 柯 夸没捞搁
			relay |= (1 << (rbuf2-RLY0_ON));
		} else
		if (rbuf2>=RLY0_OFF && rbuf2<=RLY7_OFF){	// 副饭捞 坷橇 夸没捞搁 
			relay &= ~(1 << (rbuf2-RLY0_OFF));
		}
	}
}
ser_int() interrupt SIO_VECTOR
{
	if (RI){                           //Recive Buffer is Fill
		rbuf1 = SBUF;
		RI = 0;
		rtime = RTIME;
		if(rcount<rsize) rbuf[rcount++]=rbuf1;
		else rtime=0;
	} else if (TI)
		TI = 0;
}