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#include "reg51.h" #include "string.h" sbit P3_2=P3^2; char receive_data[96]; char flag; char converse=0; unsigned char code table[]={ 0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F}; //串口初始化 晶振为11.0592M　方式1 波特率300－57600 void InitCom(unsigned char BaudRate) { unsigned char THTL; switch (BaudRate) { case 1: THTL = 64; break; //波特率300 case 2: THTL = 160; break; //600 case 3: THTL = 208; break; //1200 case 4: THTL = 232; break; //2400 case 5: THTL = 244; break; //4800 case 6: THTL = 250; break; //9600 case 7: THTL = 253; break; //19200 case 8: THTL = 255; break; //57600 default: THTL = 208; } SCON = 0x50; //串口方式1,允许接收 TMOD = 0x20; //定时器1定时方式2 TCON = 0x40; //设定时器1开始计数 TH1 = THTL; TL1 = THTL; PCON = 0x80; //波特率加倍控制,SMOD位 RI = 0; //清收发标志 TI = 0; TR1 = 1; //启动定时器 } //从串口接收一个定长字符串(非中断方式,只用于字符需有一个的idata字符串数组) //如unsigned char *Str; //unsigned char i[]="abcd"; //InHandStr = &i; void ComInStr(unsigned char *Str) { while(*Str !='@') //判断是否到了字符串的尾部 { while(!RI); //空语句判断字符是否收完 *Str = SBUF; //保存字符 RI = 0; //清RI Str++; //字符串指针加一 converse=1; } } void delay(int c) { int i,j; for(i=0;i<c;i++) for(j=0;j<10;j++) ; } void delay1s(void) { unsigned char i,j,k; for(k=60;k>0;k--) for(i=20;i>0;i--) for(j=248;j>0;j--); } void main() { unsigned char i,j; //i:每个字的显示循环；j每个字的显示码除以2� unsigned int b=0; //显示偏移控制，char类型最多只能显示14个汉字+一个空白位字符 unsigned char a;//控制移动间隔时间 InitCom(6); EA=1; ES=1; ET1=0; while(1) { char i; ComInStr(receive_data); while(converse) { j=0; if(a>3) //移动间隔时间；取值0--255 { a=0; b+=2; if(b>=96) //显示到最后一个字，回头显示，判断值=字数*32 { b=0; } } P3_2=1; for(i=0;i<16;i++) { P1=i; P0=receive_data[j+b]; P2=receive_data[j+b+1]; delay(5); P0=0x00; P2=0x00; j+=2; } P3_2=0; for(i=0;i<16;i++) { P1=i; P0=receive_data[j+b]; P2=receive_data[j+b+1]; delay(5); P0=0x00; P2=0x00; j+=2; } a++; } } } //串口接收中断函数 //void serial () interrupt 4 using 3 //{ //ComInStr(receive_data); //flag=1; //}