ynxf.c

来自「接收串口字模或数字,在led显示屏上显示」· C语言 代码 · 共 204 行

#include <AT89X52.H>

 unsigned char code DAT[11]={0xfd,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0x00};
unsigned char code  DIG[10]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};
	 /*      led"=",0x5b"[",0x25"% 空秤"0x24重秤"$"0x23有卡"#"};*/
void delay(int ) ;
sbit SCL=P2^4;  
sbit SDA=P2^5;  


sbit SE=P1^0;	   //4寸数码管
sbit SCK=P1^1;
sbit RCK=P1^2;

sbit SE1=P1^4;	   //汉字屏
sbit SCK1=P1^5;
sbit RCK1=P1^6;	

sbit LED=P1^3;	 //指示灯
sbit DOT=P1^7;	 //冒号

sbit KEY=P2^7;	//键盘
sbit IRB=P2^6;  //红外

sbit GREEN=P2^3;//绿灯
sbit RED=P2^2;//红灯
sbit UP=P2^0;//升栏杆机
sbit DOWN=P2^1;//降栏杆机

unsigned char  str1[16]={0x00};
unsigned char   str2[16];
unsigned char  str3[16];
unsigned char  str4[16];
unsigned char  str5[16];
unsigned char   str6[16];
unsigned  char str7[16];
unsigned  char  idata str8[16];

int tj_bytes;

void out_disp_8(unsigned char);
void out_disp_led(unsigned char);
unsigned char led_8(char);

void init_rs232();
void tx_char( char );
unsigned char rx_char();





void main()
{  unsigned char dat1,dat2,zt,i;
   delay(5000);
   //定时器设置
  
  TH0=0xfb;
  TL0=0x30;
  IE=0x82;
  TMOD=0x20;
  init_rs232();
  EA=0;
  TR0=0; 
   
   KEY =1;
   GREEN =1;/*绿灯*/RED=0;/*红灯*/UP=1;/*栏杆机升*/DOWN=0;/*栏杆机降*/
 
   P0=0x00;
  out_disp_8(0x00);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  out_disp_8(DAT[0]);
  
  RCK=0;RCK=1;

   while (1){   dat1=rx_char();
			if (dat1==0x23) {zt=1;tx_char(0x34);}
            if((dat1==0x25) && (zt==1) && (IRB==1))/*空秤*/ {GREEN=1;/*绿灯*/RED=0;/*红灯*/UP=1;/*栏杆机升*/DOWN=0;/*栏杆机降*/zt=2;tx_char(0x33);} 
			if((dat1==0x24) && (GREEN==1) && (zt==2) && (IRB==0)) {UP=0;/*栏杆机升*/DOWN=1;/*栏杆机降*/GREEN=0;/*绿灯*/RED=1;   zt=1; tx_char(0x32);} /*重秤*/
            if(dat1==0x3d){ TR0=0;
			               dat2=rx_char();
			               if(dat2==0x30) 
						       {out_disp_8(0x00);}/*灭*/
	                       else 
						       { out_disp_8(led_8(dat2));}

	                       for(i=0;i<8;i++){ dat2=rx_char(); out_disp_8(led_8(dat2));}
	                       RCK=0; RCK=1;
						   tx_char(0x31);
						   TR0=1;
						   }
		   
			if (dat1==0x5b)
			{  TR0=0;
			for (i=0;i<16;i++){dat2=rx_char(); str1[i]=dat2;}
		
			for (i=0;i<16;i++){dat2=rx_char(); str2[i]=dat2;}
	
			for (i=0;i<16;i++){dat2=rx_char(); str3[i]=dat2;}
		
			for (i=0;i<16;i++){dat2=rx_char(); str4[i]=dat2;}
			
			for (i=0;i<16;i++){dat2=rx_char(); str5[i]=dat2;}
		
			for (i=0;i<16;i++){dat2=rx_char(); str6[i]=dat2;}
			
			for (i=0;i<16;i++){dat2=rx_char(); str7[i]=dat2;}

			for (i=0;i<16;i++){dat2=rx_char(); str8[i]=dat2;}
			EA=1;
		TR0=1;
		tx_char(0x30);
			}  }
   
    LED=~LED;  delay(5000);}

void init_rs232()
{	/*PCON=0x80;	 波特率加倍					*/
    //PCON&=0xef;	  // 波特率不加倍	
	SCON=0x50;
	TMOD=0x21;
	TH1=0xfd;
	TL1=0xfd;
    TR1=1;
	TI=1;

	}

unsigned char rx_char()
{
	while(1)
	if((SCON & 0x01)==0x01)	 break;
	RI=0;
	return SBUF;
}
	
void tx_char( char c)
{
	while(1)
	if((SCON & 0x02)==0x02) break;
	TI=0;
	SBUF=c;
}


void delay(int t) {
int i;
for (i=0;i<t;i++) ;
}

void out_disp_8(unsigned char dd) {

	unsigned char i,k;
	for (i=0;i<8;i++) {  k=dd & 0x01;SE=k;SCK=1;dd=dd>>1;SCK=0;	}
               }

void out_disp_led(unsigned char dd) {
	unsigned char i,k;
	for (i=0;i<8;i++) {  k=dd & 0x80;SE1=k;SCK1=1;dd=dd<<1;SCK1=0;	}
               }

unsigned char led_8( char dd){
   unsigned char i;
    i=0;
    while(1) {if(dd==DIG[i]) break;
		i++;if(i>9) break;}
	if(i>9) return(DAT[0]);
    return DAT[i];}
										 
  
 

void timer0(void) interrupt 1 { 

	TH0=0xfb;
	TL0=0x30; 
	

	        out_disp_led(~str1[tj_bytes]);
//	out_disp_led(~0x00);
			out_disp_led(~str2[tj_bytes]);

		
			out_disp_led(~str3[tj_bytes]);
			out_disp_led(~str4[tj_bytes]);
			out_disp_led(~str5[tj_bytes]);
			out_disp_led(~str6[tj_bytes]);
			out_disp_led(~str7[tj_bytes]);
			out_disp_led(~str8[tj_bytes]);
	

    RCK1=0;RCK1=1;
  P0=tj_bytes;
  tj_bytes ++;
  if(tj_bytes>15) tj_bytes=0;
 }