51单片机串行口通讯程序Proteus

/*********************接收*********************/ #include<reg52.h> #define uchar unsigned char #define uint unsigned int uchar code num[17]={0x3f , 0x06 , 0x5b ,0x4f , 0x66 , 0x6d ,0x7d , 0x07 , 0x7f , 0x6f ,0x77 , 0x7c , 0x39 , 0x5e , 0x79 , 0x71 , 0x00}; void receive() interrupt 4 { if(RI) { RI=0; if(SBUF>=0 && SBUF<=16) { P0=num[SBUF]; P1=~SBUF; } else P0=0x00, P1=0xff;; } } void main() { P0=0x00; SCON=0x50; //SM0 SM1 SM2 REN TB8 RB8 TI RI TMOD=0x20; PCON=0x00; TH1=0xfd; TL1=0xfd; //波特率=9600 TI=RI=0; TR1=1; IE=0x90; //EA * * ES ET1 EX1 ET0 EX0 while(1); }