51单片机串口通信,232通信,485通信,程序.doc

.51单片机串口通信，232通信，485通信，程序代码1：232通信#include#define uchar unsigned char#define uint unsigned intuchar flag,a,i;uchar code table=i get;void init()TMOD=0X20;TH1=0XFD;TH0=0XFD;TR1=1;REN=1;SM0=0;SM1=1;EA=1;ES=1;void main()init();while(1)if(flag=1)ES=0;for(i=0;i6;i+)SBUF=tablei;while(!TI);TI=0;SBUF=a; while(!TI);TI=0;ES=1;flag=0;