MCX MicrocontrollersのトピックInter-Processor communication: rpmsg_char + tinycbor

Inter-Processor communication: rpmsg_char + tinycbor

gigi1291 — Tue, 12 Aug 2025 10:29:57 GMT

I'm working on an i.MX8MM SoC and I would like to manage communication between the two cores using an rpmsg_char channel with TinyCBOR library. I couldn't find any NXP driver for rpmsg_char, only the standard imx_rpmsg_tty, While it works well, I "suspect" it has more overhead compared to rpmsg_char.

What are your thoughts on choice? Do you have any advice or suggestions?"
Thank you

Re: Inter-Processor communication: rpmsg_char + tinycbor

Manuel_Salas — Fri, 15 Aug 2025 15:32:27 GMT

Hello @gigi1291

I hope you are doing very well.

Actually, in our BSP you can find the rpmsg_char.c driver, but unfortunately, we have not an example of the integration with the SDK.

You can take as reference the multi core examples inside of the MCUXpresso SDK for cortex M.

Best regards,

Salas.