Hi I am anupc... I am working on 89c51 and I can interface 89c51 with PC via sercial port but when I interface with PC via serial port then their is no output at the port of 89c2051. I can write same code in 89c2051 as 89c51.
you are using the eval
... always comes with certain limitations - so you must always take care that you know and understand what they are:
http://www.keil.com/demo/limits.asp