imx9596 - is it possible to flash only M7 core with JLink ?

[anicolle]

Hello,

I am currently working on an iMX9596 evaluation board and I am therefore trying to do multi-OS segregation. To flash the different cores, I am creating a flash.bin file and flashing it using the USB-C port, as explained in the datasheet and training documents. I can then obtain two OSes running: a Linux one on the A55 cores and a Zephyr one on the Zephyr core. I will often change the Zephyr OS but not the Linux one, which is why I am trying to be able to quickly change the Zephyr firmware using the JTAG port and a J-Link probe.

I downloaded the latest J-Link software and found out that my device, iMX9596-M7, is listed in the J-Link library. However, when I tried to connect with J-Link, I got the following error, attached to this message.

Furthermore, my SM on M33 causes my Zephyr and Linux systems to reboot as well. Is there a way to flash only the M7 using J-Link, or is this not supported? I would also like to be able to debug with it.

Thank you in advance for your answers.

[anicolle · Accepted solution]

I found that if you stop linux booting in uboot you can then flash the M7 core with jlink probe.

[danielchen]

Thanks for sharing.

[danielchen]

Hi @anicolle 

sorry imx9596 is not launched yet.   I would suggest you contact the person who gave you this product for support.

Regards

Daniel

[anicolle]

Hello,

Ok thanks.

Regards,
Audrey.