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XG_Kang's avatar
XG_Kang
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6 years ago

Fitter Error

I have a design using 10AX057N4F40E3SG compiled with Quartus Prime Standard 17.1，If I don't change anything just do several compiles, some of the compile results work correctly,som of the compile results don't work. For the error compile results , I find the following strange thing: one signal named 'ram_rd' is connected to the rden port of a dual-port RAM,and at the same ,this signal is also connected to the rdreq port of a FIFO, the RAM and FIFO work in the same clock domain. In SiganlTapII, I can see the signal at the rdreq port of FIFO works(goes to high), and at the same time ,signal at the rden port of RAM keep low. IT is surely a fiiter error. How to fix the problem?

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9 Replies

  • sstrell's avatar
    sstrell
    Icon for Super Contributor rankSuper Contributor
    6 years ago

    It would also be helpful to see your design code.

    #iwork4intel

  • XG_Kang's avatar
    XG_Kang
    Icon for New Contributor rankNew Contributor
    6 years ago

    we are doing some tests, please wait for result. It maybe need a little bit of time. Does Intel have any suggestions? By now , we found that same clock gives to read port and write port, problem would still happen. A backup ram with same reads and writes, data would change too. Same writes to a backup ram and different reading operations with repect to the original ram to read port, data could be fine. It is very strange.

  • XG_Kang's avatar
    XG_Kang
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    6 years ago

    Is this service request public to everyone who visits this community? I pass the source code request to my boss, They want to know how to keep our source code safely only to Intel, and not public to others.

  • KhaiChein_Y_Intel's avatar
    KhaiChein_Y_Intel
    Icon for Regular Contributor rankRegular Contributor
    6 years ago

    Hi,

    This is forum is open to public. Could you provide a sample test case instead of the entire design?

    Thanks.

  • XG_Kang's avatar
    XG_Kang
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    6 years ago

    This problem is solved with some special method. This case can be close. Thanks.