Deepak Kash wrote:
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sorry I don't drink beer,

No need, It just happens to be Steve's (and my) favorite passtime... You can replace it by anything you like...


If you suggest that my program was proper
as per my requirement to send only a 'r' on the terminal why isn't it working on my hardware?


I cannot remeber anyone suggesting that your program was OK. Besides, if it was OK it would be working as expected. As long as it does not produce the desired result, it is not OK.

no change has been done as of now

Don't change it anymore. start with a fresh mind ans from scratch.Trow away what you have written and start all over again. And check this:
http://www.8052.com/forum/read.phtml?id=66285
and more specifically

If you want to test start with an isr like

check TI-bit
if clear RETI
else
move 'r' to sbuf
reti

above will only send 'r', nothing else...
if this works, try replacing the code for "move 'r' to sbuf" by the code for reading from a buffer


regards

Patrick