How to increase RPMsg buffer size?

btclark1 — Tue, 18 May 2021 16:50:34 GMT

For our product testing we need to determine what the transfer time to send data to and from the core complex's on a i.MX8M Nano. We have the VAR-SOM-MX8M-NANO development boards.

I have changed RL_BUFFER_PAYLOAD_SIZE in rpmsg_config.h to 2032

However I cannot find "SH_MEM_TOTAL_SIZE in any file and also I cannot find main_master.c and main_remote_master.c in the build.

I am using mcuxpresso_sdk_2.9.x-var01 (at https://github.com/varigit/freertos-variscite) on a VAR-SOM-MX8M-NANO which is a Cortex A53 running Linux and a Cortex M7 running FreeRTOS

Are these definitions in different files than listed here which may be specific to setting the Master?

Thank you much for your help.

Brian

0Comments

Re: How to increase RPMsg buffer size?

AldoG — Wed, 02 Jun 2021 22:05:48 GMT

Hello,

For the master side one should look in the Linux side RPMSG driver, it is located at drivers/rpmsg/imx_rpmsg.c

Best regards,
Aldo.

topic How to increase RPMsg buffer size? in MCUXpresso General

How to increase RPMsg buffer size?

Re: How to increase RPMsg buffer size?