AM263P4: SBL size and redundancy

Neil Wilson

Prodigy 155 points

Part Number: AM263P4

Tool/software:

I am looking at the SBL requirements for an AM263Px design.

The TRM shows 4 regions of 128kB with a note regarding the max sizes.

Looking at the pre-built SBL in the SDK examples and most of those are larger than 256kB.

This means they cannot be used in a redundant boot scheme?

What are the main factors to drive the size of the SBL as these seem to be large images compared to the functionality they are providing?

Regards

Neil

4 months ago

0 Nilabh Anand 4 months ago

TI__Mastermind 45784 points

Hi Niel,

Thanks for your query,

Allow me to get back on this by friday this week.

0 Nilabh Anand 3 months ago in reply to Nilabh Anand

TI__Mastermind 45784 points

Hi Niel,
Apologies for the long delay,.

Neil Wilson said:
The TRM shows 4 regions of 128kB with a note regarding the max sizes.

The max size of SBL that our ROM supports is 900KB, if you do not use redundant boot locations.

0 Nilabh Anand 3 months ago

TI__Mastermind 45784 points

Neil Wilson said:
The TRM shows 4 regions of 128kB with a note regarding the max sizes.

Looking at the pre-built SBL in the SDK examples and most of those are larger than 256kB.

Yes SBL is just an example implementation so customers are free to modify it accordingly. SDK SBL are just for refernce.

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AM263P4: SBL size and redundancy