#include #include void main() { int quit=0,data, i, port=1; /* port=1, use COM1*/ InitLib(); InstallCom(port,115200,8,0,1); /* install COM driver */ for(i=0; i<10; i++) printCom(port,"Test %d\n\r",i); /*print data to COM*/ while(!quit) { if(IsCom(port)) { /*check if any data has in COM*/ data=ReadCom(port); /*read data from COM*/ ToCom(port,data); /*send data to COM*/ // printCom(port," data=%d\r\n",data); ClearCom(port); /*clear all the data in COM*/ if(data=='Q') quit=1; /*if receive 'Q', exit program*/ } } RestoreCom(port); /*un-install COM driver */ }