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Re: Re: [microblaze-uclinux] ml310 development board sram failure



I have functional design with ddr sdram on ML310.
Can you look to my design at http://cs.felk.cvut.cz/~simekm2

Michal Simek

----- Original Message ----- From: "Paul Hartke" <phartke@xxxxxxxxxxxx>
To: <elynum@xxxxxxx>
Cc: <microblaze-uclinux@xxxxxxxxxxxxxx>; <phartke@xxxxxxxxxxxx>
Sent: Wednesday, January 11, 2006 6:26 PM
Subject: Re: Re: [microblaze-uclinux] ml310 development board sram failure


You need the phase shift in there:
http://www.xilinx.com/products/boards/ml310/current/index.html
http://www.xilinx.com/products/boards/ml310/current/reference_designs/base/ml310_base_ucf_update.zip

Looks like xilinx has not updated the BSB files to automatically include it.

Paul

Quoting elynum@xxxxxxx:
Yes, I updated to the service pack 2 package and stripped out everything
except for the uart and the ddr controller and the sram memory test just
hangs.  Here's a copy of my mhs, mss and ucf files.
>
> From: Paul Hartke <phartke@xxxxxxxxxxxx>
> Date: 2006/01/11 Wed AM 11:27:19 EST
> To: microblaze-uclinux@xxxxxxxxxxxxxx,  elynum@xxxxxxx
> CC: microblaze-uclinux@xxxxxxxxxxxxxx
> Subject: Re: [microblaze-uclinux] ml310 development board sram failure
>
> I've successfully used Base System Builder created designs with the DDR
on
> ml310.  I presume you are using the latest EDK/ISE Service Packs?
>
> Paul
>
> Quoting elynum@xxxxxxx:
> > Hello, does anyone have the ml310 development board from xilinx?
Well,
> > I'm having a problem with the ddr sdram.  I had this same problem
with
> > another development board from avnet.  The memory test for the DDR
SDRAM
> > fails.  Now avnet offered the solution in their file that dummy
signals
> > had to be created because the fpga was taking a voltage down.  That
> > solved that issue but for this ml310 board I'm having the same
problem is
> > that the SDRAM is failing the memory test but the dummy signal
solution I
> > don't think works for this board because it has been laid out
> > differently.  Has someone encountered this problem with the ML310 dev
> > system.
> >
>



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