Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

Well didgitech should release that scheme so we can
create a software that lets us graphicaly create an
algorythim.  but i think digitech wants us to get rid
of our 2101s.  But there is no chance in hell.
--- Graham Pearson <gpearson@...> wrote:

> Hi Jeff:
> 
> Martin Ecker wrote 2101Edit (version 1.1) back in
> 1999, when Windows 98 ruled.  Unfortunately, his
> program does not operate reliably under more recent
> versions of Windows.  Although you must have version
> 3.00 EPROMs to use 2101Edit, this does not guarantee
> its successful execution.
> 
> Because DigiTech did not release the specifications
> for the System Exclusive message used to transfer
> algorithms between the 2101 and a computer, Martin
> cleverly resorted to a "button-pressing" scheme. 
> When you finish building an algorithm using
> 2101Edit, Martin's program sends a sequence of
> System Exclusive messages that simulate button
> presses.  When receiving these messages, the 2101
> thinks you are manually entering a new algorithm
> using it's front panel.
> 
> The main problem with this approach is that the 2101
> needs varying "breathing" times between consecutive
> button presses.  If you're not careful, it hasn't
> finished processing the last button press before
> another one comes down the MIDI cable and so the
> 2101 ignores it.  This means that any subsequent
> button presses are out of sequence and the whole
> algorithm building procedure is jeopardized.  You've
> tried long times (500 ms or more) between
> consecutive button presses, but I see this didn't
> help.
> 
> Another problem is that sometimes the 2101
> interprets a single System Exclusive "button press"
> message as two button presses, and so again you're
> out of sequence.
> 
> We know of these problems because we tried to
> replicate Martin's scheme in our 2101 interface for
> our MIDIWizard software.  The feature was not
> sufficiently reliable that we wanted to release it. 
> I hope this explanation is not too long-winded for
> you.  I just wanted you to know that its not exactly
> Martin's fault that his 2101Edit program is
> unreliable.
> 
> Keep in touch,
> Graham Pearson
> 
>   > -----Original Message-----
>   > From: Jeff [mailto:jeffb300z@...] 
>   > Sent: Sunday, October 24, 2004 11:06 AM
>   > To: gsp-2101@yahoogroups.com
>   > Subject: [gsp-2101] 2101Edit Program
>   >  
>   > 
>   > Hi all, a  a I recently discovered the editing
> program that lets you create new algorythems
> graphicly, on the pc, them dump them to the 2101. 
> This is great.  The algorythem creation ability was
> one of the reasons I wanted a 2101 in the 1st place,
> but then found it very dificult to do with the
> limited display on the unit.  
>   > 
>   > The 2101Edit program runs OK on my XP SP1
> machine, but when I dump to my 2101, the unit
> doesn't make the changes I
>   > send.  The furthest I get, is where it will ask
> me to store the preset which was being displayed at
> the time of the dump.  I alsways end up back where I
> started - nowhere, and then usually the 2101 edit
> program locks up.  
>   > 
>   > I have tried tweaking the settings, like
> delaying the button push time by setting the
> paramiter in the 2101 edit
>   > program to the max of 4000ms.  
>   > 
>   > Has anyone had success with this program?  Any
> tips?
>   > 
>   > Regards,
>   > Jeff B.



		
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