Dave,
Thanks for the info. I will look at the pins you referenced in
more detail.
I have made some progress. Apparently, I did not have all the
project settings on the first go.
I created a new project, added all the source files, saved
the project, and exited quartus. I then copied the ts7300_top.qsf
file over the newly created one and restarted quartus. This time
the build was successful. The output file, ts7300_top.rbf, had a
size of 101357 bytes and gave the following md5sum:
1ca7467d9fac97b0d3a459aebc3aaa82.
I scp'ed this file to the board and used load_ts7300 (with -v) to load
it. The load_ts7300 utility printed "loaded" and the shell printed
the prompt and then my serial console went dead.
Has anyone successfully loaded the unaltered open fpga core
without this happening? If so, could you write to phys address
0x72a00000 without mishap and see the effect on the dio pins?
Everything works with the shipped fpga core. My question only
concerns functionality related to loading the open fpga
core rebuilt from sources.
Thanks in advance,
John Sinclair
--- In David Hawkins <> wrote:
>
>
>
> > Info: Pin ~ASDO~ is assigned to pin location Pin_1
> > Info: Pin ~nCSO~ is assigned to pin location Pin_2
> > Info: Pin ~LVDS54p/nCEO~ is assigned to pin location Pin_108
> >
> > Any guidance?
>
> This might be your problem ... but I would have thought
> the opencores project would have this set correctly ...
>
> The FPGA has dual-purpose pins. By default, they're
> reserved. To convert them to user-pins do the following:
>
> Menu item: Assignments->Device
>
> Click the 'Device and pin options' button
>
> Click the 'Dual-purpose pins' tab
> There are options there to allow use of the pins after
> configuration.
>
> Double clicking on the text gives you the alternate
> pin setting options.
>
> Some pins will be dedicated inputs, so you might not
> have the choice of I/O for some of the dual-purpose pins.
> However, if you're just playing with the open-cores design
> this shouldn't be an issue.
>
> Cheers,
> Dave
>
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