Hi All, I am a newbie using the 8051 board. I Use the 8051 Development Board. I tried intSIO.zip sample code, after modifying the getchar() function in the main() to com_putchar('h'), which should write the character to the User port of the 8051board.... And thru a cable, I connected this user port to one commPort In My PC) and tried to read this value ('h') from there. But I could read nothing. ...What could be wrong ? I am using development board from PJRC.com, and run the hex file compiled using Keil compiler C51, use a PJRC.com utility to run the program.. please help me out..
The sample code was downloaded from Keil .