MCU-PLUS-SDK-AM243X: AM243x (TMDS243EVM) Bootloaders - How to

Jacob Howard

Tool/software:

HI,

I am working with the Sitara MCU AM243x Evaluation Module. I have found some things about bootflows and boot order, but I am not able to find what I am looking for specifically.

- For the Rom Bootloader (RBL), how do i edit this, what is the max size the RBL can be, and how do I flash the RBL after?
- I have the same question for the secondary bootloader (SBL)

over 1 year ago

0 Prashant Shivhare over 1 year ago

TI__Guru 69891 points

Hello,

The ROM code is not entitled for any modifications & flashing. It's programmed by TI in the SoCs itself.

Please refer to the following documentation understanding the bootloaders & bootflow

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/10_00_00_20/exports/docs/api_guide_am243x/BOOTFLOW_GUIDE.html

Regards,

Prashant

0 Jacob Howard over 1 year ago in reply to Prashant Shivhare

Prodigy 150 points

Ok,

- Is there any documentation for the RBL code, so that I can review this code? And are you saying that even with a custom board using this processor, I cannot modify this RBL code? This is something I may want to do if possible.

- Lastly, For the SBL, how to I modify and build that bootloader code? I am having a hard time finding sources to edit, built, and flash SBL code as well. I would need this customized. Also, what is the maximum size the RBL can be?