Documation Card Reader / USB Interface

Hi folks, I've finally published the schematics and software for the Documation M-series card reader interface I built this summer, which connects the reader to a PC with USB. I've built two of them, actually, one for my HP version of the reader that uses differential signalling, and one for the standard Documation TTL interface, which is going to the Computer History Museum. The schematics and firmware for both are included. The schematics and software are available at http://www.quarterbyte.com/cardread.zip. It's all GPL'd. The zip file doesn't include a bunch of reference information mentioned in the manual but you can download them from the URL's provided in the .PDF'd manual (although for some reason the hyperlinks aren't active, sorry). Someday, when I have time for fun again, in the far, far, distant future, I'm going to extend the IBM 1130 simulator to use this interface so you can run real card decks into it :) Brian =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _| _| _| Brian Knittel _| _| _| Quarterbyte Systems, Inc. _| _| _| Tel: 1-510-559-7930 _| _| _| Fax: 1-510-525-6889 _| _| _| Email: brian(a)quarterbyte.com _| _| _| http://www.quarterbyte.com