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CAlex's avatar
CAlex
Icon for Contributor rankContributor
3 years ago

DE10 STANDARD Linux issue

Hi, I wrote a code to test the latency of the SOC communication, the result are as followed: The blue line is the clock flag I made, it sends the 50us toggle flag to the pio of fpga, ...
aikeu's avatar
aikeu
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi CAlex,


From your picture, I see is a there is a 100us ++ in ur code detection in Linux application.

May I know it happens sometimes? Is your linux application solely running on a single task just to capture the toggling?


Thanks.

Regards,

Aik Eu


CAlex's avatar
CAlex
Icon for Contributor rankContributor
3 years ago

Hi,

This issue happens several seconds, I can't tell you the precise time but it seems will happen in a fixed time period.

And yes, my usersapce code only do the detect signal, count a number to 1000 and send the job done signal.

reguards.