topic Updating the M-Core image without the bootloader (iMX8ULP) in i.MX Processors

Updating the M-Core image without the bootloader (iMX8ULP)

dhruvinrajpura — Wed, 14 May 2025 10:35:36 GMT

Hi,
I want to update the M-core image without modifying the bootloader. Typically, the flash.bin file contains components such as the AHAB container, UPower firmware, U-Boot, and the M-core binary. However, I only want to update the M-core image, not the bootloader or other components.

Is it possible to do this?

If yes how can I make that image and how can I flash it?

Thanks,
RDS

Re: Updating the M-Core image without the bootloader (iMX8ULP)

Harvey021 — Thu, 15 May 2025 02:36:40 GMT

Please have a reference from the Chapter 4 of This guide there are guides related to M core images

Regards

Harvey

Re: Updating the M-Core image without the bootloader (iMX8ULP)

dhruvinrajpura — Thu, 15 May 2025 09:24:03 GMT

Hi Harvey,
I have already gone through that reference manual, but unfortunately, it does not contain the section for i.MX8ULP (section 4.7.4).

I did find some community posts mentioning that on i.MX93, we can use remoteproc to update the M-core image from the A-core. I’m wondering if someone has already patched this functionality into the i.MX8ULP, and whether we can use it now?

Here are links for those posts:
https://community.nxp.com/t5/i-MX-Processors/i-MX8ULP-remoteproc-error-and-how-to-run-different-binaries-on/m-p/1852541
https://community.nxp.com/t5/i-MX-Processors/How-to-update-the-M33-firmware-using-remoteproc-on-iMX8ULP/m-p/2044380/highlight/false#M234007

Re: Updating the M-Core image without the bootloader (iMX8ULP)

Harvey021 — Fri, 23 May 2025 02:41:24 GMT

As you can see the support from the update-the-M33-firmware-using-remoteproc-on-iMX8ULP

With checking internal team, so far, no definitive reply for our BSP.

Regards

Harvey