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Altera_Forum
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16 years ago

Why is the speed of operations not constant? Is the cache the reason?

Hi First of all I'm using Quartus 8.1 and the NiosII IDE 8.1. The Nios II system I set up, processes data from an ADC with the help of a FFT module I added to the processor system. The...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Nios-S and -F have a cache the -e not so this could be one source

do you see any differences betwen -s and -f ?

-f has data cache as well but -s only i-cache

do you have a timer that produces interrupts that need to be handled ?