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RE: [microblaze-uclinux] Spartan3E board and u-boot question
On Wednesday, May 09, 2007 11:30 AM Stephane Rousseau wrote:
> I begin to suspect someting with the DDR SDRAM IP for the Spartan3E
> I've recreated a small system and used the memorytest application, the
> memory test fails.
Well, I think I may be able to help you. I've looked up my Bugzilla
issues and have found out I've encountered similar issue myself - see
the relevant quotation below:
" I have compiled Petalogix reference project, located in the
evC-edk81, using EDK 8.1. It appeared that RAM doesn't work properly,
namely bits 5 and 21 stay 0 always, I couldn't set them to 1. The
problem has been resolved by replacing mch_opb_ddr v1.00.b by older,
1.00.a version. However it makes sense to look into the root of the
problem - we may bump into similar issue working with Spartan-3e in
It's worth to mention that Petalogix pre-build FPGA image, located in
tan3E500-RevC/implementation doesn't have such a problem
though it's presumably built from the source above. Could be that
another EDK version has been actually used."
Try to do the trick I've done (replace the core by older version) - see
John Williams may be interested to know regarding this issue as well.
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