TMDS62LEVM: (RTOS eMMC boot) Will RTOS SBL be able to boot from MMC0 eMMC file system?

Hi Dazong,

Dazong Chen said:

"MMC0 eMMC file system", For a pure RTOS application, When RTOS SBL sits in the eMMC, is it considered as file system

This is changed now in the TRM available on the AM62L website: https://www.ti.com/lit/ug/sprujb4/sprujb4.pdf?ts=1744014870310&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FAM62L

It is supposed to be MMC0 eMMC Boot Partition:

Dazong Chen said:

how long does it to timeout before moving to USB DFU boot?

I am not sure if this specific timeout is profiled, but here's how the sequence is: All images are expected to be present in boot partition zero with 1st stage image being at 0x0 address, the ROM supports a redundant image at offset 0x400000 in case the initial image fails to be recognized. If the image at redundant offset also fails to be recognized then it switches to the back up boot mode. This is mentioned in 5.4.3.1 eMMC Bootloader Operation section of the TRM.

Dazong Chen said:

2.with the log below, is it a fail case when boot from eMMC?

The current release of Freertos SDK doesn't currently support booting from eMMC, could you please elaborate what you are trying here?

Best Regards,

Meet.

Hi Meet,

Thanks for the link to the updated TRM, I will share this with the team.

The current release of Freertos SDK doesn't currently support booting from eMMC, could you please elaborate what you are trying here?

What I did is just switched the boot pins to eMMC boot, and I am seeing these logs get printed while no real application is running. Wondering if this will be a fail case for eMMC boot or not

Thank you,

Dazong

Thank Meet,

Yes you are right, I made a mistake by set the sw3.1 (pin 12) to high instead of sw 3.4 (pin 15)

Thanks,

Dazong