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Old 04-21-2006, 09:39 AM
Morten Leikvoll
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Default Editing Spartan3 DCM in FPGA(8.1.03) editor

Whenever I try to change something in a DCM, a non-reversible error appears
in DRC. All the unused pins on the DCM is somehow enabled (becomes cyan),
and the DRC complains about some pins having no driver.

Also, trying to edit diff outputs causes non-reversible problems.

I can not find anything about these issues. Any clues?



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Old 04-21-2006, 01:11 PM
Brian Davis
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Default Re: Editing Spartan3 DCM in FPGA(8.1.03) editor

Morten Leikvoll wrote:
>
> Whenever I try to change something in a DCM, a non-reversible error appears

<snip>
> Also, trying to edit diff outputs causes non-reversible problems.
>
> I can not find anything about these issues. Any clues?
>


The latest versions of FPGA_editor clobber component info on edits.

Start with Answer Records 22469, 23035, 21667, 22217

Brian

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  #3 (permalink)  
Old 04-21-2006, 02:50 PM
Morten Leikvoll
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Default Re: Editing Spartan3 DCM in FPGA(8.1.03) editor

Sorry, no new clue there (but thanks for trying). I see there is a problem
which supposedly should be fixed in 8.1.3, but it hasn't.

"Brian Davis" <[email protected]> wrote in message
news:[email protected] oups.com...
> Morten Leikvoll wrote:
>>
>> Whenever I try to change something in a DCM, a non-reversible error
>> appears

> <snip>
>> Also, trying to edit diff outputs causes non-reversible problems.
>>
>> I can not find anything about these issues. Any clues?
>>

>
> The latest versions of FPGA_editor clobber component info on edits.
>
> Start with Answer Records 22469, 23035, 21667, 22217
>
> Brian
>



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  #4 (permalink)  
Old 04-21-2006, 04:03 PM
Brian Davis
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Default Re: Editing Spartan3 DCM in FPGA(8.1.03) editor

Morten Leikvoll wrote:
>
> >> I can not find anything about these issues. Any clues?

>
> > The latest versions of FPGA_editor clobber component info on edits.
> > Start with Answer Records 22469, 23035, 21667, 22217

>
> Sorry, no new clue there (but thanks for trying). I see there is a problem
> which supposedly should be fixed in 8.1.3, but it hasn't.
>


Well, those Answer Records describe exactly the problems you are
having in editing components, and give workarounds for ISE 7.x

If for some reason you can't drop back to 7.x, you could try exporting
the ncd design into XDL, changing the DCM/IOB settings in XDL, and
converting it back again.

Brian

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