Hi,
How to communicate between Cortex A35 and Cortex M4 using IPC APIs ? I am using i.Mx8QX . I am planning to use sc_ipc_open() , sc_ipc_read(), sc_ipc_write(), sc_ipc_close() APIs. Can you please provide the suggestion.
Thank you
Sharmia
Hi Sharmia
for communication between cores one can look on
sect.2.6 Remote Processor Messaging attached Linux Manual.
May be useful https://mcuxpresso.nxp.com to download SDK2.3 for i.MX 8QuadXPlus Beta2
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi igor,
Is Remote Processor Messaging is a blocking function ? Is it secured one ? We are planning to use IPC APIs. Please provide the input for the same.
Thank you,
Sharmila
Hi Sharmila
one can look at rpmsg documentation
https://www.kernel.org/doc/Documentation/rpmsg.txt
71. Remote Processor Messaging (rpmsg) Framework — The Linux Kernel 4.9.0-rc1+ documentation
Best regards
igor
Hi igor,
Whether rpmsg ping pong application is using secured IPC ?
Regards
Sharmila
Hi Sharmila
do you mean using SECO, I do not think so.
Best regards
igor
Hi igor,
I understand that using rpmsg we can communicate b/w cortex A35 and cortex M4. But my doubt is, is it the only one way for this? Can I use Message unit (MU) which is associated in SECO for communication ? Can i use sc_ipc_read(), sc_ipc_write() APIs for read write Message Unit?
Please provide the answer.
Thank You,
Sharmila
hi, Sharmila
Did you realize inter-core communication with Message unit (MU)? If yes, could you share your method with me?
Thank you,
Best regards
zhu
Hi igor,
Remote Processor Messaging is a blocking function ? I have planned to use MU(Message unit). Since SECO is having MU Block it is secured. How to use sc_ipc_read() , sc_ipc_write() APIs to transfer message bw two core ? I need to write the Application to transfer the data between linux to free rtos and vice versa.
Thank you
Sharmila