Boot iMX 8 with M7 core enabled

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Boot iMX 8 with M7 core enabled

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hoyden
Contributor I

I am developing an application for the M7 core on an MIMX8ML8CVNKZAB. I will be using IAR IDE to develop the code and Segger J-Link Plus to connect to the target.

I understand I need to boot the A53 core first and then enable the M7 core.

Is it possible to enable the M7 core without loading an M7 application? I would like to use IAR to download the code to SRAM for debugging. Once the application is working I will figure out how to save it to an SD card for automatic booting.

My target board is a VAR-SOM-MX8M-PLUS. What information do I need to place in a device tree to enable the M7?

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hoyden
Contributor I

Thank you, Aldo. That AN looks most helpful.

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AldoG
NXP TechSupport
NXP TechSupport

Hello,

You may refer to the following app note:
https://www.nxp.com/docs/en/application-note/AN5317.pdf

Best regards,
Aldo.