series_communication.c

PC机的串行口通信模拟协议软件

//单片机串行口通信测试程序甲机程序.制作:№→蓝海啸浪 404530302
//当按下P1.0时,LCD12864左屏显示0,按P1.1显示1.依次类推
//每按下一次键都会将键值通过串行口发给乙机,乙机收到后再发回来,
//甲机收到后乘以2显示在LCD右屏上


#include<reg52.h>
#include<12864_db.h>
#include<12864_operate.h>

/*unsigned char getkey(void)
 {	unsigned char i=0;
	unsigned char keybuf=0;
 if(P1!=0x0ff)
     {keybuf=P1;
     while(P1==keybuf)	++i;			
     if(i>=10)             
        return keybuf;   
      else
       return 0;
      }
	else	return 0;
}*/
void	main(void)
	{	
		unsigned char *pointer;
		unsigned char	data_buf[1]={0},data_h,data_l;
		TMOD=0x20;	
		TH1=0xF3;
		TL1=0xF3;
		SCON=0X50;
		PCON=0;
		ES=0;  			
		TR1=1;
		intrst();
		lcdz(0);
		lcdon();

		do{		//----------------------
				//data_buf[0]*=2;
				data_h=data_buf[0]/10;
				data_l=data_buf[0]%10;
				pointer=taba;
				pointer=pointer+data_h*16;
				right_bytes_dasend(2,0,pointer,8);
				pointer=pointer+8;
				right_bytes_dasend(3,0,pointer,8);
				//--------------
				pointer=taba;
				pointer=pointer+data_l*16;
				right_bytes_dasend(2,8,pointer,8);
				pointer=pointer+8;
				right_bytes_dasend(3,8,pointer,8);

				while(~RI){;}
					RI=0;				
					data_buf[0]=SBUF;	
							
					
			}while(1);

	}