keystone2 communication method between arm-linux and dsp

striker qian

Hi, TI experts,

I am newbie to keystone2 device so I am wondering how to do Inter-Processor Communication between dsp cores and arm-linux(not baremetal mode) in the simplest way,:

how to trigger a single dsp interrupt from arm-linux side just like IPC interrupt between dsp cores?
I know there's example called mpmclient/mpmserver, are they used for inter-processor communication(some send/recv mailbox stuff )?
how to share large amount of data between dsp and linux-arm.?Is using "mmap" a good way to do it?

I also apprecaite any other examples or materials related to this topics if you are kind to offer.

Thanks a lot !

striker

over 8 years ago

0 Titusrathinaraj Stalin over 8 years ago

TI__Guru** 116100 points

Hi,
Yes, mpmclient and server is involved with IPC mechanism.
I would like you to suggest to refer to the following IPC image processing demo.

C:\ti\mcsdk_bios_3_01_01_04\demos\image_processing\ipc\evmtci6638k2k

The "master" code would run in ARM core and The "slave" code would run in DSP core.

0 striker qian over 8 years ago in reply to Titusrathinaraj Stalin

Intellectual 755 points

Thanks again stalin!

a demo would be much better than documents.

striker

Processors

Processors forum

keystone2 communication method between arm-linux and dsp