Hello,
my problem was that I needed two output and one input pin which I can control/read directly from my VI.
I'm using a FT232R from FTDI Chip (A USB - UART converter) to control an electronic device. Before that I used the COM port. When I switched to USB, I installed only a virtual COM Port, so I didn't have to change my VI. Now that I switched to a PDA I tried to use the same procedure. But when I didn't work it out I looked for other solutions and I tried another driver called D2XX driver for the FT232R. With this one I can access different pins very easily via a "Call library function node".
I didn't wrote my solution in the last reply because this solution is a quite specific one and not a general one for setting RS232 signals.
Regards
Ranseier
Message Edited by Ranseier on 12-19-2006 02:55 PM