--- In minimigtg68@yahoogroups.com, Philip Pemberton <ygroups@...>
wrote:
>
> Hi guys,
> It seems there's a compatibility issue between the DE1 bitstream
files and
> the new-rev DE1 hardware with the PSC SDRAM chips.
>
> Basically, I used the precompiled microcode (POF/SOF) files on
the
> filebase. V1.2e booted Kickstart, but kept sporadically rebooting
(as in, from
> "loading SPIBOOT.ROM"). V1.3 wouldn't even load -- typically it
failed with a
> solid colour screen and the blue OSD visible, but with no OSD text
(or garbage
> instead of text).
>
> I rebuilt V1.3 with the latest Quartus (V8.1 Web Edition) and
programmed it
> into my DE1, and it booted fine. Kickstart is up and running, and
the demo ADF
> loads OK. Unfortunately I don't have the microphone mod sorted out
yet, so I
> can't get Protracker to play any sound, but at least it boots...
>
> Last point -- Quartus throws out a lot of timing analysis
warnings, and a
> couple relating to the SPI bootROM. These are probably worth
looking into, but
> I'm almost certainly not the best person for the job, given that
I've only
> been using Quartus for a few days... I did use Xilinx ISE in
Verilog HDL mode
> for a good year or two, so maybe that'll help a little :)
>
> Thanks,
> --
> Phil.
> ygroups@...
> http://www.philpem.me.uk/
>
http://whoyouvotefor.info/altera_sdram.html
here is info about sdram controller for new chip
i havnt time too look by myself but maybe usefull for someone.
regards.