The VDIP1 is a fussy feeder and you only find out what it does not like after you have tried and lost data.

After several emails from the factory I have sort of got a working system. I have found out the hard way that not all USB memory sticks are created equal. My Rundisk 2 GB brandx stick is apparently too slow for the Vinculum VDIP1. That may be rectified with proper handshaking but how to do that is nowhere described in the manuals that I have found.

You are meant to be able to upgrade the code in the VDIP1 by inserting a memory stick with an specially named file on it. Well it does work with a Verbatim 512 MB card but my Rundisk 2 GB card just dies part way into the boot load process leaving one VDIP1 module permanently inoperative. Scratch $35.

With a Verbatim 512 MB card I can write 10,000 character files without using any software flow control but I do need some delays.

Now for the task of reverse engineering the flow control system until it works.

BrianT