well, i'll explain my requirement more clearly.
i have a circuit which, lets say a bit error rate circuit.that has to be controlled in two modes.
1-using key pad n 2-using remote
for this keypad routine is to be written n when it comes to remote mode the control commands r given through a computer which is connected to a microcontroler/its interface through a gpib.
ultimately the command from my computer should communicate with the microcontroller n microcontroller should implement the command.
suggestion n help is badly required.
thanks in advance