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Altera_Forum
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16 years ago

Why nios ii program execution time, sometimes fast, sometimes slow?

We use the nios ii 7.2 multi-processor, using the chip is epc3c25-384c8, cpu clock signal for the 50mhz, using assembly language, when the implementation of the interrupt program, the program executi...
Altera_Forum's avatar
Altera_Forum
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16 years ago

THANKS

I question the premise, why enter the interrupt program, the program execution time is sometimes fast, sometimes slow, the problem we have now is not resolved, there is no way in the circumstances, the clock frequency from the original 50mhz raised to 80mhz, also quarts -ii soft would version upgrade from the original 7.2 upgrade to 9.0, but in the case of 80mhz can not run, but the cache from the original 8k reduced to 4k, can run at 80mhz, but this way, reducing the cashe, program execution time and slower, and we feel this is a contradiction, we use the assembly language, can not be used c2h, please help us, thank you

http://www.alteraforum.com/forum/showthread.php?t=19389