Re: [microblaze-uclinux] CFI Flash on 8bit bus?

[Michael Libeskind <mbl@xxxxxxxxxx>]

Ok, I think I got it.
I wanted to enable chipscope within the emc core itself so I edited 
/EDK/hw/XilinxProcessorIPLib/pcores/opb_emc_v2_00_a which is the same 
place I applied the patch to make the 16 bit flash work.  I had added a 
include_chipscope generic in the process and to my surprise XPS told me 
that it couldn't find that generic.  At that point I realized that the 
version of the emc in my_project_directory/pcores does not get 
automatically updated with the master copy when I recompile (and not 
even on a make clean).  Thus, I was compiling with an unpatched version 
of the EMC.  Deleting the version from my_project_directory/pcores made 
everything work ok.

So, either the patch fixed things or adding chipscope fixed things.  I'm 
betting on the patch, but I'll disable chipscope on monday to find out 
for sure.

Thanks for your help.


David Banas wrote:
> Thanks for pursuing this, Michael!
> 
> David Banas
> Field Applications Engineer
> Nu Horizons Electronics Corp.
> 2070 Ringwood Avenue
> San Jose, CA 95131
> (408)434-0800 - office
> (415)846-5837 - cell
> http://www.nuhorizons.com
> 
>>-----Original Message-----
>>From: owner-microblaze-uclinux@itee.uq.edu.au [mailto:owner-microblaze-
>>uclinux@itee.uq.edu.au] On Behalf Of Michael Libeskind
>>Sent: Thursday, July 07, 2005 1:05 PM
>>To: microblaze-uclinux@itee.uq.edu.au
>>Subject: Re: [microblaze-uclinux] CFI Flash on 8bit bus?
>>
>>So far for me,
>>HACK + C_INCLUDE_DATAWIDTH_MATCHING = '1' = stuck flash bit 7
>>HACK + C_INCLUDE_DATAWIDTH_MATCHING = '0' = working OK (with the known
>>limitation that SW can not do a 32 bit read)
>>
>>I've been digging through the simulation and with chipscope for most of
>>this afternoon and haven't found the problem yet.  I'll keep you posted.
>>
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