AM2432: secondary boot from custom spi flash

Tomoya Oyama

Intellectual 330 points

Part Number: AM2432
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi team,

I'm developing industrial communication sdk for AM243x on my custom board, and I installed the flash device IS25LP128.

On my board, EtherCAT_Slave_Simple.c is expected to start at sbl_ospi.c.

I confirmed that sbl_ospi.c starts, but the process is stuck in the function Bootloader_parseMultiCoreAppImage().

Meanwhile, I confirmed that IS25LP128 can read and write flash via Nor SPI (not ospi) as well. I used the same sysconfig file as this time.

Do you know some reason why it stopped in the SBL?

Best regard,

oyama

5 months ago

0 Meet Thakar 5 months ago

TI__Genius 10295 points

Hi Oyama,

Bootloader_parseMultiCoreAppImage function has many points at which it can fail, could you step into the function while debugging and point to an exact line/function at which it is failing? Please also share boot logs from the UART terminal, these might indicate what might be the issue.

Best Regards,

Meet.

0 Tomoya Oyama 5 months ago in reply to Meet Thakar

Intellectual 330 points

Hi Meet,

The program stops when accessing x509_cert_ptr in bootloader_findSeq.

I think it's because *x509_cert_ptr is NULL, but I don't know why it is NULL.

Furthermore, I would like to check if I can use sbl_ospi.c if my board only supports SPI and not QSPI or OSPI.

Best regard,

oyama

0 Meet Thakar 5 months ago in reply to Tomoya Oyama

TI__Genius 10295 points

Hi Oyama,

Give me sometime to further investigate on this.

Best Regards,

Meet.

+1 Meet Thakar 5 months ago in reply to Meet Thakar

TI__Genius 10295 points

Hi Oyama-San,

This is a known issue on older MCU+SDK version ( I guess versions < mcu_plus_sdk_am64x_09_01_00_41), you might be facing this issue if you are on the older version, you can switch to the latest MCU+SDK version where this issue is fixed or apply the patch mentioned in this thread to fix the same: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1382710/am6411-bootloader-parse-image-fails

Best Regards,

Meet.

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AM2432: secondary boot from custom spi flash