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

[VPati1]

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

[JOHI]

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]

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