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Thread: Quartus Assembler error(internal error)

  1. #1
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    Default Quartus Assembler error(internal error)

    Hello,all
    I recently synthesis DDR2 controller(my own design) with ALT_DQDQS(quartus generate DQDQS PHY with DDR2_SDRAM). Quartus encounter a Internal error when assembler process. This error is shown as follows picture.
    Can you help me to solve this problem ,thank you very much.


  2. #2
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    Default Re: Quartus Assembler error(internal error)

    You're attached image does not contain the error.

    Jake

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    Default Re: Quartus Assembler error(internal error)



    I don't know how to display this image. I just attach the image address,you can click this address to see the image.
    Actually, I can't capture the data by signaltapII which is output from ALT_DQDQS Megafunction, even this data is registered through many registers. Quartus come up a Internal error when assembler process when I capture the data from ALT_DQDQS or I output the data to output port,contrary,quartus assemler run successfully.

    Thank you.
    Last edited by Johnson; November 25th, 2009 at 06:26 PM.

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    Default Re: Quartus Assembler error(internal error)

    PS : I have get into the datapath and look at the write and read registers before they are latched to/from the I/O.
    I don't why my controller internal registers can't be probed by SignalTapII??
    Is there some another configuration to ALT_DQDQS megafunction,I already read the ALT_DQDQS specification in detail ,but I don't find any information can help me??

  5. #5
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    Default Re: Quartus Assembler error(internal error)

    Close Quartus and all other programs currently running. Then start Quartus again and begin to compile. If it works now or even it succeded more than before your RAM size is not enough.

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    Default Re: Quartus Assembler error(internal error)

    I don't think this is memory issue.
    Once I probe the data in my data path,this internal error come up even I just run the single process of quartus9.0(Windows Xp),otherwise it runs successfully.

    I think it maybe ALT_DQDQS is not correctly configured,but I don't how to debug this problem. I had resarch the ALT_DQDQS SPEC in detail,but don't find any usefull information to solve this problem.

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    Default Re: Quartus Assembler error(internal error)


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    Default Re: Quartus Assembler error(internal error)

    Attached is my internal error message.

  9. #9
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    Default Re: Quartus Assembler error(internal error)

    Finally image is upload correctly now.
    Attached Images Attached Images

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    Default Re: Quartus Assembler error(internal error)

    Whether this is io_config problem.

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