IMX7 ARM cortex M4 RPMSG lite Baud Rate

[J_955]

Hi folks,

Either I am a complete beginner or I can't find any information on how to interpret the baud rate for interprocessor communication via RPMSG lite. On the host side (Linux) it is no problem to set the baud rate via the application if the provided corresponding kernel module has been loaded. The default is 115200 buad. However, this is much too slow for me. If I change the baud rate, however, communication on the M4 side no longer works properly. What do I have to do on the M4 side to be able to communicate with a higher baud rate from the host's point of view?

KR Joe

[AldoG]

Hello,

kef2 comment is correct, baudrate is irrelevant, RPMSG is used for sending short messages with several bytes. 

If you need to transfer bigger volume of data, it is suggested to use shared memory and RPMSG only transmit the share memory address.

Best regards,
Aldo.

[kef2]

/dev/ttyRPMSG baudrate is irrelevant, the same like with USB serial gadget