Zephyr OS running on the small core

Duo
24

Yes, the last released arduino image v1.0.9 needs the resource table, but building the arduino image from the arduino’s SDK soruce doesn’t. Nevertheless I managed to create and link the resource table, it is helpful to understand how it works as I will probably need one for using openAMP.

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25

Hi again, I’ve been running some tests for RPMsg, I was wondering if you have you tried to measure Round Trip Time communication between linux and zphyr using RPmsg. I measured about 5 [ms], but was expecting less. Independently of the payload size I got the same latency.

Payload_4-NMsg_100000.png1000×600 21.3 KB

I modified the simple echo example to measure the RTT. Do you know by any chance if this is the latency I should expect ? Or if there is some software o hardware limitations for this kind of communication ?

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26

I have not extensively tested the code.

Maybe it has something to do with the cache coherency issue?.

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27

Thanks for the quick response. Probably something related to that, I will check it out.

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