> > The predictable weak response from the programmers was that > > Visa should never send bad packets, > > did you have your whip and other punishing devices ready? *never* assume > the external world will behave, certainly not over a communication line! Yeah.. Sigh.. The reverse order of the LRC check was somewhat embarrasing. Fixing any of those little things would have fixed the problem, but I thought it was interesting just how tall a stack of dependencies there were before we hit a problem. In the end, just a small firmware change on our end, and a small fix on visa's end. People DO get all bent out of shape when their money goes "poof" though.. :) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist