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Altera_Forum
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15 years ago

Access-duration between reading 2 time from a perepherial

Hi Folks, i implemented a RTC with an resolution of 8 ns with an memory-mapped avalon-interface for reading the timestamps. if i read from this device with nios II/f 2 times, the difference...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Have you any interrupts in your system that are still active?

The malloc'ed memory might be another reason for a jitter ... maybe depending on what memory is cached and not.