Sign in

username:

password:



Not a member?

Search Comp.Arch.FPGA



Search tips

fpga by Keywords

Altera | ASIC | CPLD | Cyclone | DCM | DDR | DSP | Ethernet | ISE | JTAG | Linux | LVDS | Microblaze | ML310 | Modelsim | NIOS | OPB | PCI | Quartus | RocketIO | SDRAM | Spartan | Spartan3 | SRAM | Stratix | Verilog | VHDL | Virtex | Virtex-4 | Virtex-II | Xilinx | XST

Ads

See Also

DSPEmbedded SystemsElectronics

Comp.Arch.FPGA | Editing Spartan3 DCM in FPGA(8.1.03) editor

There are 4 messages in this thread.

You are currently looking at messages 0 to 4.

Editing Spartan3 DCM in FPGA(8.1.03) editor - Morten Leikvoll - 2006-04-21 03:39:00

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?



Re: Editing Spartan3 DCM in FPGA(8.1.03) editor - Brian Davis - 2006-04-21 07:11:00

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
______________________________
Join the blogging team on FPGARelated.com and earn rewards! Details Here.

Re: Editing Spartan3 DCM in FPGA(8.1.03) editor - Morten Leikvoll - 2006-04-21 08:50:00

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" <b...@aol.com> wrote in message 
news:1...@t31g2000cwb.googlegroups.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
>

Re: Editing Spartan3 DCM in FPGA(8.1.03) editor - Brian Davis - 2006-04-21 10:03:00

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