AM2431: How can i know that the RBL load the SBL in address0x0 or redundant address 0x400000?

Qiao,Xue

Part Number: AM2431

I am using QSPI boot mode.

I put the bootloader in address 0x0 and address 0x400000.

In TRM 4.4.1.1.1.1

[ If the image fails to be read correctly from offset 0x0 of the flash
memory, the ROM will attempt to obtain the image at offset 0x400000. This is the only redundant image location
supported by the ROM.]

i understand that the SBL at address 0x400000 will be started if there is some thing wrong with the SBL in 0x0.

My question is

1.How can i know that the RBL load the SBL in address0x0 or address 0x400000?

2.when the SBL at address 0x0 and 0x400000 both fail to start,Can i do something such as turn on LCD?

over 2 years ago

0 Aakash Kedia over 2 years ago

TI__Mastermind 26145 points

Hi Qiao,Xue,

Let me check on this and come back by 13th Sept.

Best Regards,
Aakash

0 Qiao,Xue over 2 years ago in reply to Aakash Kedia

Prodigy 210 points

Hello

I'm still looking forward to your reply .

0 Aakash Kedia over 2 years ago in reply to Qiao,Xue

TI__Mastermind 26145 points

Hi Qiao,Xue,

Apologies for the delay. There has been reoccurring Public Holidays because of which I could not follow up on this issue. Let me come back to you on this by 5th Oct ?

Best Regards,
Aakash

0 Aakash Kedia over 1 year ago in reply to Aakash Kedia

TI__Mastermind 26145 points

Hi Qiao,Xue,

You need to parse the ROM logs to abstract this information.

The required information is in the TRM.

Parameter tables in boot loader memory have the data (Table 4-61. Global Memory Addresses). Pick the right parameter table based on the parameter table index.

2. Look at byte offset 4 to determine boot peripheral.

3. If it is OSPI, it must be 85.

4. Use the OSPI/QSPI boot parameter table to determine the address ROM booted from -

Thanks and Regards,
Aakash

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AM2431: How can i know that the RBL load the SBL in address0x0 or redundant address 0x400000?