i.MX ProcessorsのトピックRe: i.MX7D power mode

i.MX7D power mode

ko-hey — Tue, 04 Oct 2016 01:23:13 GMT

Hi all

Let me confirm about power mode.

I'm checking a section 5.1.4.4 of following document.
http://www.nxp.com/files/32bit/doc/ref_manual/IMX7DRM.pdf

Fisrt, I start both of A7 and M4 core. ⇒ Both core are in "RUN" state.
Then, I chage a mode of A7 to "SUSPEND". ⇒ A7 is in "SUSPEND" and M4 is in "RUN" state.
Finaly, M4 turn out A7 by interrupt signal. ⇒ Both core are in "RUN" state.

Can i.MX7D do that?

Ko-hey

Re: i.MX7D power mode

ko-hey — Fri, 07 Oct 2016 08:54:28 GMT

Hi all

Can anyone help this question ?

Ko-hey

Re: i.MX7D power mode

BiyongSUN — Mon, 10 Oct 2016 05:45:44 GMT

Here is answer from the reference manual, which download from the link you provided.

Re: i.MX7D power mode

ko-hey — Tue, 11 Oct 2016 01:38:06 GMT

Hi B.Y. Sun

Thank you for reply.

Is there any sample for test those function and system ?

Ko-hey

Re: i.MX7D power mode

art — Thu, 20 Oct 2016 12:04:43 GMT

Yes, i.MX7D can do that.

There are the BSPs for the i.MX7D SABRE SD board, the Linux L4.1.15_2.0.0_iMX7D that runs on the A7 core(s) and FreeRTOS_iMX7D_1.0.1 that runs on the M4 core. Both are available here (check the "Board Support Packages" section):

http://www.nxp.com/products/software-and-tools/hardware-development-tools/sabre-development-system/sabre-board-for-smart-devices-based-on-the-i.mx-7dual-applications-processors:RDIMX7DSABREBRD?fpsp=1&tab=Design_Tools_Tab

Being loaded together to the board, they allow to test the feature you describe. The documentation is included into the packages.

Best Regards,
Artur

Re: i.MX7D power mode

ko-hey — Fri, 21 Oct 2016 00:22:55 GMT

Hi Artur

Thank you for reply.

I'll try it.

Ko-hey