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Altera_Forum's avatar
Altera_Forum
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11 years ago

Problem in getting 1 usec Interval Timer to work using NiosII and QSYS

Hello everyone, Kindly guide me in resolving the following problem. I am unable to get the Interval timer to work for 1usec. It is working for 1msec. Case: I have a DE2115 kit. Using QSYS I h...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I agree with mmTsuchi

It's impossible to use 1us periodic interrupt on Nios.

You must go at least to the 50-100us range, just to add a few instructions in isr and spare some headroom for non-irq code execution.