Hello,
I'm reading about remoteproc (rpmsg and openAMP):
RPMsg-Lite User's Guide: RPMsg Component
GitHub - NXPmicro/rpmsg-lite: RPMsg implementation for small MCUs
open-amp/openamp_ref.pdf at master · OpenAMP/open-amp · GitHub
It seems that remoteproc (rpmsg) is principally use when two CPU or when a CPU/MCU are inside the same silicon chip.
(ex: i.mx6 SoloX or i.mx7 or vybrid)
However, I would like to know if :
Is it possible to use RPMSG between an (external) Kinetis MCU and a (external) Single core i.mx6 ?
(or)
Is it possible to use RPMSG between two external Kinetis MCU ?
In short, does RPMSG / OpenAMP applies only to single silicon chip with multiple cores or can I use it between two separate chips ? What would be the best interface between these chips ? (UART or SPI ?)
Thanks
ssinfod
Hi ssinfod,
RPMsg is used by the OS which manages the Memory Unit, so it is not possible to use it with 2 external MCUs.
In this case the best interface will depend completely on the requirements of your application. I recommend you to read general literature about communication interfaces and decide which protocol meets your requirements.
In i.mx devices you have a wide variety of connectivity options, for instance UART, SPI I2C, USB, Ethernet, CAN and some others.
Best regards,
TIC
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