Problem to extend Xilinx GSRD Design

> Out of curiousity: did you EVER have a GSRD implementation working on
> the MiniModule?  I actually emailed Xilinx a while ago asking if this
> reference design would work on the MiniModule, and I was told that it
> would not due to several technical reasons (that were all enumerated at
> the time, and made sense to me, though I don't have them in front of me
> right now).  So, I'd be curious to hear if you had the original GSRD
> working, and if you do in fact get the GSRD2 working.
>
> Regards,
> John O.
> www.jrobot.net

Hi John,

You shocked me with your response. I have NEVER implemented an original
GSRD to work on MiniModule. I actually did not find it necessary since
I was waiting for GSRD2 (I tried to save some time). If there are some
technical limits that prevent that I would like to see them written,
because nobody told me yet,  that this is not possible. I only had the
original  TEMAC reference design working (using LL_TEMAC in a
CoreConnect style and lwip stack).

With regrets,

Guru

Thanks for all that information!

It seems to me to be a good solution to change to GSRD2.
Has anybody experiences if the current downloadable version will
work with the Montavista Linux Preview Kit 3.1.
I managed it to run it on GSRD1 design. I can reach about 120 Mbits/s 
now. If i change to the new one i have to get it run there with the same 
performance.
My second approach is to use the DCR-Bus in the GSRD1. There is a
Interrupt contoller connected to the DCR and i would like to do it
like the source from there. Is there a chance that this works in the
end? What do you think?

Eric

Guru schrieb:
>> Out of curiousity: did you EVER have a GSRD implementation working on
>> the MiniModule?  I actually emailed Xilinx a while ago asking if this
>> reference design would work on the MiniModule, and I was told that it
>> would not due to several technical reasons (that were all enumerated at
>> the time, and made sense to me, though I don't have them in front of me
>> right now).  So, I'd be curious to hear if you had the original GSRD
>> working, and if you do in fact get the GSRD2 working.
>>
>> Regards,
>> John O.
>> www.jrobot.net
> 
> Hi John,
> 
> You shocked me with your response. I have NEVER implemented an original
> GSRD to work on MiniModule. I actually did not find it necessary since
> I was waiting for GSRD2 (I tried to save some time). If there are some
> technical limits that prevent that I would like to see them written,
> because nobody told me yet,  that this is not possible. I only had the
> original  TEMAC reference design working (using LL_TEMAC in a
> CoreConnect style and lwip stack).
> 
> With regrets,
> 
> Guru
> 

Hi Eric,

Seems like MPMC2 implemented in GSRD2 opens unlimited possibilities to
port the design to different platforms.

I have downloaded the latest version of MPMC2 (20060630) which also
includes GSRD2 and there is no sign of Linux - only Treck IP stack,
this time with source code.

Have you tested the performance of GRSD1 with Treck stack?

What do you want to connect to DCR bus? I hope not for data
transmission, because it is a low performance bus, primary for
registers reading/writing.

Send me a private email for further discussion/cooperation.
 

Cheers,
 

Guru