Sergio and Phil,

On Oct 31, 2008, at 7:03 AM, sergio_stunt wrote:

> --- 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/
> >
> what about rebuild all for DE2?
> cos cant use minimig properly at this board due sdram crash issue.
>
I also have successfully rebuilt the POF/SOF using Quartus 8.1 Web
Edition (it's free) and have a DE2 board with the new PSC SDRAM chips.
This has taken care of all issues I've had with regards to stability.