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VPati1's avatar
VPati1
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7 years ago

How to find time required for execution of custom instructions added to NIOSII processor.

Hi,

I am working on NIOSII processor.

I have added some custom instructions to NIOSII processor. I want to find time required for execution of those custom instructions. I have tried with timestamp function by adding timer in QSYS as per code given in NIOSII classic software development pdf.

But for every instruction I am getting zero time as execution time or it is giving like- no timestamp device is available.

I am using QUARTUS 17.0 prime Lite edition.

please help me to resolve this issue.

Thanks in Advance

2 Replies

  • JOHI's avatar
    JOHI
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    7 years ago

    Hello,

    Have you considered simulation of your niosII system in Modelsim? If you count clock cycles you might get the info you need. Some time ago I thought that simulation of nios system in modelsim was not possible, but it is. See relevant tutorials form more info.

    Best Regards,

    Johi.

  • VPati1's avatar
    VPati1
    Icon for New Contributor rankNew Contributor
    7 years ago

    Thank you very much JOHI...I will try your solution...