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Altera_Forum
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20 years ago

on_chip memory fitter problem?

this week,i found a problem that when i fitter my nios2 design in quartus4.2,the report always show: total memory bits :8192 ,i change the on_chip ram size,such as 8k,16k,32k ,the report is also 8192,i install the quartus5.0 and nios5.0,the the problem is exsit too, why,how can i slove the problem?please help me,thank you!

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  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    originally posted by cosmosd@Apr 14 2006, 07:46 AM

    this week,i found a problem that when i fitter my nios2 design in quartus4.2,the report always show: total memory bits :8192 ,i change the on_chip ram size,such as 8k,16k,32k ,the report is also 8192,i install the quartus5.0 and nios5.0,the the problem is exsit too, why,how can i slove the problem?please help me,thank you!

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14376)

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    Which device are you using?

    What data width are you using?

    Which memory type is being used? (M512, M4K, MRAM)

    Also when you say 8k, 16k, and 32k are you refering to bits or bytes?
  • Altera_Forum's avatar
    Altera_Forum
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    --- Quote Start ---

    originally posted by cosmosd@Apr 14 2006, 09:46 AM

    this week,i found a problem that when i fitter my nios2 design in quartus4.2,the report always show: total memory bits :8192 ,i change the on_chip ram size,such as 8k,16k,32k ,the report is also 8192,i install the quartus5.0 and nios5.0,the the problem is exsit too, why,how can i slove the problem?please help me,thank you!

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14376)

    --- quote end ---

    --- Quote End ---

    ,

    hi,BadOmen,thank your,i use the ep1c12,32bit width,m4k ,the unit is BYTE,i use another borad that is ep1s10,32bit,m4k,is also the problem.
  • Altera_Forum's avatar
    Altera_Forum
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    I think I&#39;ve heard of this before but I can&#39;t remember if there was a logical answer for this or not. I do recall that the main summary window will always show the correct number of bits (correct number of used bits that is).