Parallel port programmer..via USB not working!!!..PLZ help

Discussion in 'Programmer's Corner' started by itsingleefang, Jun 26, 2010.

  1. itsingleefang

    Thread Starter New Member

    Jun 26, 2010
    Hey Everyone,

    I have a problem using my Parallel Port programmer ..i mean to say is i have made a parallel port prog. and it works perfectly fine with lpt1 port in the computer..BUT ..the problem is that my computer doesn't have one(don't know why!) and also for my laptop..

    But i bought a cable which like a USB printer Port like this( ) one and now when i connect to my PC or Laptop..via can't run the programmer on my board...and i think the problem is with port or programmer in Makefile..

    Please can anyone help me out with this.
    What should i put in port and programmer section in Makefile( of winAVR) ??

    or any other suggestion..ASAP


    just in case for PM: <snip>
    Last edited by a moderator: Jun 26, 2010
  2. eblc1388

    AAC Fanatic!

    Nov 28, 2008
    It is widely accepted that most USB-Parallel converters do not work for PIC or AVR device programmer, mainly because of the timing of the virtual lpt port emulation by the USB driver.

    Don't waste your time trying to rectify the problem because there isn't any easy solution. Some people have reported success using Parallel port via a PCMCIA card on a Laptop but it also depends on some PCMCIA card manufacturers. Some say a PCI card with Parallel and Serial port works but your mileage will vary.

    As serial and parallel port have been mostly phased out on both desktop or laptop please consider using programmer that comes with USB interface.

    For myself I always keep a laptop with both Serial and Parallel port, just in case.
    itsingleefang likes this.
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    I agree. And for the price of some USB programmers are pretty inexpensive. You can also find many circuits for USB programmers on the web.

    Dont spend any more on adapters and such trying to get this thing to work. You will spend more then if you just got a USB programmer in the first place.
    itsingleefang likes this.
  4. sceadwian

    New Member

    Jun 1, 2009
    For the price of the USB to parallel port cable you bought you could likely have found a new USB based programmer.
    itsingleefang likes this.
  5. t06afre

    AAC Fanatic!

    May 11, 2009
    I agree. A cheap USB programmer may cost about the same as a USB converter unit. You can also build one self. But for such project you must get the MCU you use in the project programmed somehow.
    But anyway two things are important. In order to use your USB/LPT converter you must install a driver. And also check the address/LPT port number that the unit end up with. As I am sure it will not be LPT1. Many drivers let you change this. So you may set it up to simulate LPT1 which is standard.
    itsingleefang likes this.