Doh! It's been a while since I used these.
I was slightly wrong; actually both the 232 and 245 devices can be accessed either via a serial port interface (COMx on windows, /dev/??? on linux etc.) or via a direct API. The 245 provides a parallel FIFO and the 232 a serial data link, so you'd want the 245. regards cds c d saunter ([EMAIL PROTECTED]) wrote: : Soren, : I don't know about the USB parallel port converters but there are : variousways you can add USB connectivity yourself. : A simple way are the USB devices from FTDI : (http://www.ftdichip.com/FTProducts.htm) : Either the FT232R or the FT245R. These are both single chip solutions : that provide a USB interface on one side and an 8 bit bi-directional fifo : on other. The 232 is mapped as a serial port at the system level, whilst : the 245 is higher bandwidth and accessed through an API (use ctypes etc.) : Windows, Linux & Mac OS X are supported. : FTDI provide evaluation modules (tiny, USB powered) that you can be up and : running with in no time: : http://www.ftdichip.com/Products/EvaluationKits/FT245RModules.htm : Good luck! : regards : cds : Soren ([EMAIL PROTECTED]) wrote: : : Hi, : : I want to control some motors using the parallel port.. however, my : : laptop does not have any parallel ports (very few do). What I do have : : is a USB->Parallel converter... I thought about using PyParallel, but : : the USB->Parallel converter doesn't actually map to the LPT port .. : : and PyParallel only looks for LPT ports? : : Has anyone tried doing this? What are my options for controlling : : parallel connections on a laptop with no parallel port? : : I also thought about controlling the USB natively.. but since I dont : : have any instructions on how to do this with my Velleman USB->Parallel : : port converter... i guess I would be totally blind. : : Any help would be appreciated! : : Soren -- http://mail.python.org/mailman/listinfo/python-list
