[Milkymist-devel] Memory test fail on ML-401

[Clark Xin]

above DQS=129, random noise starts
below DQS=29, random noise starts againg,

from DQS=0 to DQS=~50 vertical patterns are getting less wider. but never
the never vanishes.



On Sat, Jul 18, 2009 at 2:13 PM, Sébastien Bourdeauducq <
sebastien.bourdeauducq at lekernel.net> wrote:

> Hi,
>
> Those vertical patterns are typical of failing DQS timings. Adjust "DQS
> Phase"
> (don't touch other parameters) and press 't' until they are gone; and
> memory
> should work.
>
> I'll be happy to hear about your results, the board revision and FPGA
> stepping
> level you're using and the DQS phase that works for you.
>
> Sébastien
>
>
> On Saturday 18 July 2009 13.03.50 Clark Xin wrote:
> > Hi Sébastien,
> >
> > Here is the couple images I got.
> > http://img404.imageshack.us/gal.php?g=initialstate.jpg
> >
> > initial_state is the first image I see when I started calibrate utility.
> > DQxx are the images when I change DQS value, then press t.
> >
> > thanks
>
>
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