You either need to set up the wires to loop back (so com port1 TX -> com
port1 RX) or you need two physical ports. If you just do a loop back, you
only need to open one port.
Patience, persistence, truth,
Dr. mike
On Sun, 19 Jul 2009, a...@rediffmail.com wrote:
> hi all
> i wanted to know whether data txd on com port1 be received on
> com port2.
>
> because in serial comm program once u initialise com port as 1
> and send data, it cannot be reinitialised to com 2.
> Else just let me know how can i transfer data between multiple
> com ports.
>