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TDA4VM: IPC communication, max payload size

Part Number: TDA4VM

Hello TI,

What is the max payload size that we can send over IPC? In the documentation, we read that the max payload size is 512 (link : RPMessage can transfer maximum of 512 bytes of data.). We tried to send 512 bytes but we have an error. The max size which we can send is 496 bytes. We are sending messages from the QNX to RTOS hosts and vice versa.

Do you know what is the problem? We are using the PROCESSOR-SDK-RTOS-J721E_07.02 and PROCESSOR-SDK-QNX-J721E_07.02. (QNX + RTOS).

Best Regards,

Marko.