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

Hi,
  Didn't even see the DSP crystal at first.It's hiding under the 
  Expansion board.The Zilog mcu reads:

                z8018010vsc
                zi80  mpu
                9407     6n
  Don't know if this is upgradeable.Is it a common part or native
  to Digitech?Funny...the upgrade chips read v3.00 but on boot it
  displays ver. 3.00.00a.My knowledge of this stuff is pretty basic.
  It's just that it seems that it's...well...slow.Nevermind using
  the FC to change multiple parameters being slow,but even with no
  effects(not bypassed)it "feels" a TINY bit slow.I thought I was
  imagining it until a friend of mine,who is a faster more technical
  player than myself,tried it for the first time,played some stuff
  and said "Is there a delay on this or something?".Don't get me 
  wrong.I love this unit...more than later versions on the merits
  of it's interface,crazy routing and control options,etc.Thanks
  for your response,Mark!
                  Paul

  
--- In gsp-2101@yahoogroups.com, "Mark" <mark@w...> wrote:
> 
> Which crystal the DSP one or the Zilog? I would leave them, the 10 
> MHz Zilog models have a 20 MHz crystal (they divide by 2 
internally). 
> There are also timer and interrupt issues that are in the 
firmware, 
> so if it aint broke don't fix it! Absolutely DO NOT change the DSP 
> crystal speed!
> 
> Only the older Zilog mcu can be upgraded to higher speed, but also 
> involves a firmware change (to adjust for timers and etc having a 
> different clock speed)
> 
> Just my 2 cents since I do embedded work for a living.
> 
> --- In gsp-2101@yahoogroups.com, "paulscary1" <PAULSCARY@M...> 
wrote:
> > 
> > Hi,
> >   I was wondering,can you change the crystal and make the 2101 
> > faster?I bet there's more to it than that but whado I know?:)
> > Thanks for reading!
> >                     Paul