Originally Posted by sohagiut

what does it mean by "The data is immediately sent back to PC". Does it means the output will be displayed at the pc. how?

Yes. For test one as each char is recieved by the PIC it is sent back to the PC by the uart.


Read the code.
This code seems to be way over your head. Is it home work?
Have you done the simple stuff link blinking LEDs etc.

Originally Posted by sohagiut

Actually i tried to program and used the Hyperterminal with proper settings to see the output. but nothing appears.

If it was that easy everyone would do it.

Debug the code.

Verify that you can select a given test with a switch.

Then choose or write a test that sends data from the PIC to the PC.

Then choose or write a test that sends data from the PC to the PIC.

Then try one that reads data from the PC and sends it back.

Use the debugger.