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Altera_Forum's avatar
Altera_Forum
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14 years ago

Quartus 11.1 incorrectly compiles the design

Has any one else seen this?

Q 11.1 incorrectly compiles the design. When trying the same code, qsf, sdc and rest of the project with Q 11.0 sp1, the design is compiled correctly. I do not see any timing errors in Q 11.1 compile.

At present, the only way I can tell that the design doesn't function is by seeing ip hdr chksum errors on the network sniffer.

Any pointers, suggestions while I continue to debug this?

Thanks.

Sanjay

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    I suggest you try to build in a signal tap to examine and try to isolate what's failing.

    So far I haven't had any issues with 11.1 but it may be very specific issue with the code you are compiling.

    If you can isolate it down to a single section of code, that's in error, you can open a service request to see if you can get a hotfix for it.

    I would also double check any false path statements. It may be that the timing across a "false Path" is really critical, and the to routers just placed the logic differently, causing it to run or fail.

    Pete