https://community.nxp.com/t5/Using-Our-Community/Flow-control-with-RPMsg/m-p/1264564#M562 <P>I now understand that the user is responsible for flow control (ex: by sending response RPMsgs to indicate reception).</P> Mon, 19 Apr 2021 20:19:19 GMT dlm080 2021-04-19T20:19:19Z https://community.nxp.com/t5/Using-Our-Community/Flow-control-with-RPMsg/m-p/1263668#M560 <P>How is flow-control supposed to work with RPMsg?&nbsp; For example, I am using an I.MX8.&nbsp; If an M-core continuously sends messages to the A-core side, and the A-core side does not read them, what happens?&nbsp; I assume the message queues will eventually fill up.&nbsp; Is there back-pressure on the M-core side, or a notification that it is writing over it's unread messages?&nbsp; I'm not seeing this.&nbsp; Is it my responsibility to have the A-core send RPMsg responses to let the M-core side know that the messages were received?</P> Fri, 16 Apr 2021 15:55:35 GMT https://community.nxp.com/t5/Using-Our-Community/Flow-control-with-RPMsg/m-p/1263668#M560 dlm080 2021-04-16T15:55:35Z https://community.nxp.com/t5/Using-Our-Community/Flow-control-with-RPMsg/m-p/1264564#M562 <P>I now understand that the user is responsible for flow control (ex: by sending response RPMsgs to indicate reception).</P> Mon, 19 Apr 2021 20:19:19 GMT https://community.nxp.com/t5/Using-Our-Community/Flow-control-with-RPMsg/m-p/1264564#M562 dlm080 2021-04-19T20:19:19Z