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Asifa's avatar
Asifa
Icon for New Contributor rankNew Contributor
11 months ago

NIOS ii/e clock frequency differ from real-time running frequency.

I have created a Qsys circuit using Nios II/e, with a clock frequency of 50 MHz. Other peripherals are also connected, as shown in the attached photo. I wrote a program in Eclipse, and when I checked...
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tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
11 months ago

Hi


From the pin planner screenshot, could you try changing the IO standard for the clock pin to 3.3V instead of 2.5V?

Another question is could you try increasing the delay to 10us if the delay is proportional or not?


Regards

Jingyang, Teh



Asifa's avatar
Asifa
Icon for New Contributor rankNew Contributor
11 months ago

It's still the same with 3.3V to clock pin. If we set the delay to 1 µs, it shows 79 µs. When we increase the delay to 10 µs, it shows 89 µs.