C语言单片机串口通信

#include <reg51.h> code Tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; char code tt[]="asdasdas"; void send(unsigned char dat) { SBUF=dat; while(TI==0); ; TI=0; } void delay(void) { unsigned char m,n; for(m=0;m<250;m++) for(n=0;n<250;n++) ; } void main(void) { unsigned char i; TMOD=0x20; SCON=0x40; PCON=0x00; TH1=0xfd; TL1=0xfd; TR1=1; while(1) { for(i=0;i<8;i++) { send(tt[i]); delay(); } while(1); } }