Hello All, I am not curtain of the amount of interest in interfacing PIC projects to a PC via the parrallel port, but for those interested, Intel makes two 100pin QFP chips which support full IEEE1284 level 2 specifications including negotiation. They cost around $20 a pop, but well worth it. They allow up to 2MByte transfer rate to the perifferal. And it is easy to write PC app that works on ALL versions of windows without the need of a device driver. This includes Windows NT/2000/XP. You just have to use the windows CreateFile("\\\\.\\LPT1".....) to open the channel. You can use DeviceIOControl to change the tranfermodes if desired. The Intel chips are the CD1283 and CD1284. They are available from DigiKey. Regards, James -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics