AWR6843: Download existing meta image from Flash without updating meta image via UART

Shige

Prodigy 60 points

Part Number: AWR6843
Other Parts Discussed in Thread: UNIFLASH

Hello,

In mmwave_sdk_03_06_00_00-LTS, the Secondary Bootloader Software Design says:

User can choose from one of the following option:

a. Update meta image via UART.

b. Download existing meta image from Flash.

I'd like to know how to download existing meta image(User application) from Flash without updating meta image via UART.

Uniflash

Metaimage 1: SBL binary

Metaimage 2: User application binary(MSS, BSS, and DSS binary)

Could SBL load the user application by writing the user application in metaimage2 with Uniflash?

Regards,

Shige

over 2 years ago

0 Luke Rouleau over 2 years ago

TI__Expert 4448 points

Hello,

I am still looking into this for you, please provide me some more time to get back to you, 24-48 hours.

Regards,
Luke

0 Luke Rouleau over 2 years ago in reply to Luke Rouleau

TI__Expert 4448 points

Hello,

Yes, SBL can be used to load an image from SFLASH. Please work through the instructions in section 4.10 in the Secondary Bootloader Software Design document you mentioned above, and look through the SBL source in <MMWAVE_SDK_36_DIR>\packages\ti\utils\sbl

Also, please reference this document as well to better understand the overal bootloader flow: IWR6843 Bootloader Flow

Regards,
Luke

0 Shige over 2 years ago in reply to Luke Rouleau

Prodigy 60 points

Hello,

Thank you for your reply.

I'd like to confirm that we're on the same page.

I looked through the SBL source.

In case of choosing autoboot, the following process is skip.

After that, the following process is done.

If I change SBL_METAIMAGE_OFFSET from (256U * 1024U) to 0x00080000U (metaimage 2), it's possible to load user application from metaimage 2.

Regards,

Shige

+1 Luke Rouleau over 2 years ago in reply to Shige

TI__Expert 4448 points

Hi Shige,

Yes, I believe we are on the same page and what you mention is correct.

Regards,
Luke

0 Shige over 2 years ago in reply to Luke Rouleau

Prodigy 60 points

Hi Luke

Thank you for your prompt reply.

I understand the content of your response.

Regards,

Shige

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AWR6843: Download existing meta image from Flash without updating meta image via UART