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Still no success working minimig onde1 board   Message List  
Reply | Forward Message #196 of 327 |
Re: [minimigtg68] Re: Still no success working minimig onde1 board

ozkanocakli wrote:

> de 1 board shows regular messages
>
> spihost.rom found
> kick.rom loading

AFAIK there are two issues with (DE1) Minimig atm...

(1) SDRAM timing. Some DE1 boards use different SDRAM chips which aren't
compatible with the Minimig SDRAM controller out-of-the-box. I also believe
that SDRAM problems can be mitigated to some extent via timing constraints
in Quartus.

(2) Reportedly some SD cards aren't compatible with the Minimig SD
controller. People have had success with some previously failing SD cards
using certain format utilities.

Personally, I've had mixed success with the various releases of Minimig on
the DE1, DE2 and my own hardware platform, both with .SOF releases and my
own builds with various versions of Quartus.

Unfortunately, until timing issues etc are resolved it's a case of "luck of
the draw" for the DE1/2 builds as far as I can tell. Seems most people have
managed to find a version that works on their hardware. I've been menaing to
take a closer look at the DE1/DE2 problems but haven't found the time.

Unfortunately there's probably not a lot you can do except try the different
builds and different SD cards. Not sure anyone else can help you either?!?

Anyone else disagree with this summary?

Regards,

--
| Mark McDougall | "Electrical Engineers do it
| <http://members.iinet.net.au/~msmcdoug> | with less resistance!"



Tue Dec 16, 2008 3:03 am

tcdevelop
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Message #196 of 327 |
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first of all if I bothered with my posts I am sorry, the point i am able to send sof file via jtag or pof file with programing mode. de 1 board shows regular...
ozkanocakli
Offline Send Email
Dec 15, 2008
9:31 pm

... AFAIK there are two issues with (DE1) Minimig atm... (1) SDRAM timing. Some DE1 boards use different SDRAM chips which aren't compatible with the Minimig...
Mark McDougall
tcdevelop
Online Now Send Email
Dec 16, 2008
3:03 am

Hi Mark, et al. ... aren't ... believe ... constraints ... The SDRAM controller files for v12d and v12e have one difference. The SDRAM controller file for V13...
Leslie
redskulldc
Offline Send Email
Dec 16, 2008
12:14 pm
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