topic Re: i.MX8-mini mmap() in NXP Designs

i.MX8-mini mmap()

ristohedman — Mon, 28 Dec 2020 09:07:23 GMT

Hi,

Could it be possible to access M4 DDR area from Linux user space with mmap() or related? I need a SHM- area between M4 and A53 and am searching a minimum effort solution to realize that.

BR, ristoH

Re: i.MX8-mini mmap()

weidong_sun — Wed, 30 Dec 2020 01:29:16 GMT

Hi,

To communicate between A53 & M4, you need to use rpmsg, we provide the corresponding driver and test program, you can get relevant information in i.MX_Reference_Manual.pdf and i.MX_Linux_Users_Guide.pdf.

Hope this informatin is helpful to you.

Have a nice day!

B.R,

weidong

Re: i.MX8-mini mmap()

ristohedman — Tue, 05 Jan 2021 12:42:08 GMT

Thank you Weidong - we will study...

BR ristoH