Re: Carte Blanche fails to program...Help needed

[Nama <forums6000@mac.com>]

On Feb 24, 9:45 am, Nama <forums6...@mac.com> wrote:
> On Feb 24, 6:44 am, "Charlie" <charlieD...@verEYEzon.net> wrote:
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> > "Nama" <forums6...@mac.com> wrote in message
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> >210b1b5c-7c55-4ecd-a562-31171c43cd49@t13g2000prc.googlegroups.com">news:210b1b5c-7c55-4ecd-a562-31171c43cd49@t13g2000prc.googlegroups.com...
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> > > Ok..still having a few issues. My Chinese replica USB cable arrived
> > > today, and seems to work well.
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> > Great!
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> > > I reprogramed the FPGA, but I then have
> > > to reprogram the flash memory to make the fix permanent. The problem
> > > is that I get a 'no card detected' when I insert the BITSTREAMS SD
> > > card (supplied with the CB). (The demo SD card is recognized and
> > > works). I tried making a new Bitstream SD card, and that is also not
> > > recognized! If I take the files out of the subdirectories on this
> > > card, the card is then recognized, but does not show any contents.
> > > Strange behavior.
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> > > Does anyone have any advice?
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> > I've never had the 'no card detected' message with the BITSTREAMS SD but
> > I've had it act flakey (JAT reset error or no error but not show anything on
> > the card). Taking it out and re-inserting it a couple times fixed the
> > problem.
> > No other card ever had this problem.
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> > I don't think there is anything special about the BITSTREAMS SD (other than
> > mine has the 'write protect' tab removed).  I've put bitstreams directly on
> > other SD cards on the root directory and had no problem Flashing the onboard
> > memory.
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> > The only other thing I can think of off hand is that the bitstream that you
> > are transferring by way of your new USB cable is in some way not right.  Did
> > you modify the bitstream?  If so try transferring the original bitstream
> > before flashing the memory.
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> > Charlie
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> Hi Charlie,
> I've reinserted it a few time and also used a different JAT file which
> I downloaded direct from the CB website. Still not getting any
> recognition of this card. I've loaded other .bit files with no
> problems at all, so I can't see why the JAT bit file would be a
> problem. This is very frustrating indeed. As I mentioned, inserting
> the demo card also gives me a card not recognized, but doing a reset
> on the Apple then pulls up the list of files it contains, and I can
> run them no problem. A reset while using the bitstream card does not
> have this effect. I'll keep trying stuff, and see if I can't see some
> sort of pattern to the problem.
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> Thanks again
>
> Phil

All working now. In the end the solution to all my problems was
actually very simple...unplug the Xilinx cable!!! The flash guide on
the CB page doesn't mention this so maybe this is something quirky
about the chinese model I purchased.

Thanks for all your help

Philip