Failed to boot from SD Card using C55BootImage

DSP_KungFu_Master

Hello,

We received the tool C55BootImage from TI and I'm trying to use it to make a bootable file so the code can be booted from SD card.

I followed the instructions from the associated PDF and entered the "development key" and "development seed" and I placed the generated file on the SD card as boot5505.bin, but the EVM Board is not booting from it. I tried with several different SD card just to be on the safe side.

I'm using the EVM_Sample.out, provided by Spectrum digital with the EVM board, which I can program onto the SPI and boot without any problems.

One thing that I noticed is when I generate a bin file using C55BootImage in unsecure mode and write it to SPI it works.

Is there some problem with the "development key". Should I have to use some other key? Is there a way I can debug the boot process? How do I know what went wrong during booting?

Thank you...

over 15 years ago

0 Ming Wei over 15 years ago

TI__Guru 55055 points

Hi There,

Do you have any other boot images in NOR, NAND flash or SPI EEPROM, I2C EEPROM? If there is a flash iamge in any of those devices, the SD card will not boot, because SD card has lower priority in boot up sequence.

The other key thing to the SD card boot is that the SD card has to be formated into multiple partition FAT16/32 (single ). The one I am using is HP format (HPUSBFW.EXE). You should be able to download it from web free of change.

Best regards,

Ming

0 DSP_KungFu_Master over 15 years ago in reply to Ming Wei

Intellectual 705 points

I formated the card using HPUSBFW.EXE (although I don't see an option for multiple partition in that software (I'm using version 2.2.3). I generated the file and placed in on the card as boot5505.bin but the board is not booting from it. I'm ensuring that there is nothing in the EEprom's by filling them up with 0's previously.

Can I contact you on email in order not to post details about my secure boot file creation here?

Best regards,

0 DSP_KungFu_Master over 15 years ago in reply to DSP_KungFu_Master

Intellectual 705 points

Hello,

It appears to be working fine now. I tried with several different SD card and some work and some don't. My 1GB card is not working but 256 GB and 2GB ones do.

Do you have any insight on SD card limitations?

Cheers,

0 Ming Wei over 15 years ago in reply to DSP_KungFu_Master

TI__Guru 55055 points

Hi There,

We did experience booting failures from some SD cards. Most of those failures are acused by the card operation voltage range. Our bootloader require 2.7V to 3.3V. If the cards return different voltage range, then the bootloading will stop. We have tried many SD cards include the SDHC cards (Kingston, Adata, Sandisk, Patriot etc.) , they are all working OK. Most of the failures happen on the older cards.

Best regards,

Ming