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nxp-mcuxpresso / rpmsg-lite

RPMsg implementation for small MCUs
BSD 3-Clause "New" or "Revised" License
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Communicating with QNX #34

Closed wonk-andy closed 1 year ago

wonk-andy commented 1 year ago

Hello

I am working on a project using one of the i.MX8 variants. The code running on the Cortex-M is bare metal and I have integrated rpmsg-lite into the firmware using the appropriate environment and platform files.

The Cortex-A cluster is running QNX, is there an existing library that I can include into the QNX application to be able to communicate with the Cortex-M4 or will this require a generic POSIX compliant platform to be developed for rpmsg-lite?

-Andy.

MichalPrincNXP commented 1 year ago

Hello @wonk-andy let me remind you that the qnx porting layer (rpmsg_env_qnx.c, rpmsg_env_specific.h) is part of this Github, for your reference. We recently had some QNX-based example for any imx8 device ... I will try to get more info and get back to you later ... to be honest I do not know how rpmsg_lite had been integrated into qnx os based example. Thank you. Michal

wonk-andy commented 1 year ago

Hi @MichalPrincNXP

From what I have been able to determine from speaking with the QNX distributor here in the UK, customers are using rpmsg_lite on the Cortex-M and open-amp / libmetal under QNX on the Cortex-A53.

Unfortunately no-one seems to have pushed their libmetal implementation for QNX back into the community repo.

-Andy.

MichalPrincNXP commented 1 year ago

Hello @wonk-andy the RPMsg_Lite component was integrated via a wrapper as the librpmsg_lite-imx.so dynamic library located in BSP/src/lib/rpmsg_lite folder by NXP in 2019. It is not freely available but it could be possible to ask for that through the NXP i.mx community. Please, raise a question there and NXP representatives should find a way how to share that dynamic library that could help you. Regards Michal

wonk-andy commented 1 year ago

Thanks Michal

I have asked the question of the i.MX community and also our local QNX distribution channel to see if they can give me access to it.

-Andy.

wonk-andy commented 1 year ago

Hi @MichalPrincNXP

The response to the question I posted to the i.MX Community was an unhelpful "we don't support QNX"

Nothing back from QNX yet either!

-Andy.

MichalPrincNXP commented 1 year ago

Hi @wonk-andy , I pinged ZdenekZ after your last post and it seems you will get the QNX lib through the i.MX Community soon. Can we close this issue now?