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Measuring durations in MicroBlaze on an Arty A7


What is the recommended approach to measure durations in C code in MicroBlaze on an Arty A7? I would like to store a start time (like clock()) and compare it to an end time to calculate a duration. time.h, xtime_l.h, other? Thanks!

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Hi @rehsd,

I believe xtime_l should work for you. Alternatively you can also add in an AXI timer or counter IP into your design which would give you that sort of functionality in your design.

Let me know if you have any questions.


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Thanks, @JColvin. Can you tell me how to properly include it in my MicroBlaze project. When I add the include line and try to compile, I get the following.

../src/main.c:8:10: fatal error: xtime_l.h: No such file or directory
    8 | #include "xtime_l.h"
      |          ^~~~~~~~~~~
compilation terminated.

I found this article about adding libraries and paths, but my UI doesn't seem to have the same options.


I have several versions of the files on my drive, but I'm not sure which one I should use.


Possibly, xtime_l isn't supported on MicroBlaze?

Thank you!

Edited by rehsd
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