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Yes, from what I see on the screenshots, you should be fine. If you want to find the pll that generates the 150MHz in the rtl viewer, you'll have to go deep into the sopc component.
If the code you want to test is too fast to get an accurate timing, you have two solutions:
[list]
[*]use a higher resolution timer instead of the system timer (it looks like you have a highres timer in your system)
[*]put your code in a big loop. As an example you can execute your code 1000 times, and then divide by 1000 the time you measured. Adjust the number of times you execute your code until you have the required accuracy.
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What do you mean go deep into the sopc component? Do you mean i change the option of the component. Think you for the solutions, for the second it's that i used.