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Altera_Forum
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20 years ago

How to freeze NIOS2 during sensitive measurement?

Hi community, we currently design a device where we use logic in a Cyclone for very accurate measuring. Beside the logic for measuring, there is a NIOS II in the same FPGA to processing the res...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

With what are you guys measuring? NIOS peripherals?

Time critical stuff is best done in HDL. Best option would be to perform the measurement in a custom peripheral that buffers the measurement in a FIFO, and if it's too much for M4Ks and you have external memory to spare, create an avalon master. Use an interrupt to get rid of busy-looping, unless it doesn't have any other tasks.

Let the firmware assist the software, that's what SoPC is all about.

Cheers, Roger