[amsat-bb] Re: IF-100 Interface

Anthony Monteiro aa2tx at comcast.net
Sun Oct 19 05:05:39 PDT 2008

At 02:58 AM 10/19/2008, Simon \(HB9DRV\) wrote:
>Does anyone know how to drive the IF-100 via the parallel port? I am 
>sure I am send the correct commands (I've looked in the WISP code) 
>but am failing to get the hardware to recognise my commands. The 
>same hardware works fine with an old DOS program.
>I can't find a clear programming spec. anywhere :-(
>Simon Brown, HB9DRV
>Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

Hi Simon,

You know you have to change the permissions in WinXP or Vista to
access the parallel port unless you use Windows print services?

The DOS emulator has the permissions set to allow this so it will
work but a Windows program can't do the same thing unless you
provide a new kernel driver or change the permissions.

Best of luck and 73,
Tony AA2TX

More information about the AMSAT-BB mailing list