C55BootImage.exe register configuration

David Whitehouse

Hi,

I'm running Version 1.00 of C55BootImage.exe to create a secure boot image so I can boot from an SD Card on my custom C5515 platform. It's working fine (booting an app off the SD Card), but I want to insert some pre-bootloader register configuration information. What is the exact format required for the registers file? I've created a file with the same format as HEX55 ( -reg_config 0xXXXX,0xXXXX) but when I look at the generated .bin file (word 15) the number of registers to configure is zero whatever I try. Any suggestions?

Also, the application I have successfully booting is purely in on-chip memory. The application I'm trying to get to boot also uses off-chip memory, so I'm trying to get the EMIF configuration registers configured with the pre-bootloader configuration (my problem above)... should I be able to do this? (My external to load into is 16 bit wide on CS2 which is what I'm trying to pre-bootloader configure)

Many thanks,

Dave

over 14 years ago

0 Juliana Mansell over 14 years ago

TI__Intellectual 1755 points

Hi David,

For correct secure boot image format, refer to the bootloader application guide, section 3.2.

http://www.ti.com/litv/pdf/sprabd7

Regards,

Juliana Almeida

0 David Whitehouse over 14 years ago in reply to Juliana Mansell

Prodigy 190 points

Juliana,

I'm aware of the secure image format - what I don't know (as I can't see it documented anywhere) is what the format of the register configuration file (-reg option) the C55BootImage.exe tool requires. The UI prompts for a .dat file but I don't know (and haven't successful managed to guess) exactly how the register values need to be presented.

Thanks,

Dave

0 Juliana Mansell over 14 years ago in reply to David Whitehouse

TI__Intellectual 1755 points

Dave,

Try the following format for your .dat file:

SIZE: 0x03
ADDRESS: 0x####
CONTENT: 0x####
ADDRESS: 0x####
CONTENT: 0x####
ADDRESS: 0x####
CONTENT: 0x####

Let me know if it works

Regards,

Juliana Almeida

0 David Whitehouse over 14 years ago in reply to Juliana Mansell

Prodigy 190 points

Juliana,

Just tried that - looks good (I can see the unencrypted register count is correct and I'm assuming the encrypted values are OK).

Many thanks,

Dave

0 Evgeniy Chasovnikov over 14 years ago

Intellectual 440 points

Hi David.

-How do you place boot image on CD card? (via card reader from PC or using copy_load Software on development board?)

0 Evgeniy Chasovnikov over 14 years ago

Intellectual 440 points

You can set all registers you need on the begin of your program.

Are you need to change register settings some times, and want to use the same program code?

0 David Whitehouse over 14 years ago in reply to Evgeniy Chasovnikov

Prodigy 190 points

Evgeniy,

I copied the file onto the SD Card with a card reader on my PC. The SD cards we use (1GB) default to FAT16 when formatted in Windows, so you might want to do a command line format:

format X: /FS:FAT32

to ensure the card is FAT32 before you copy the file onto it.

Dave

0 David Whitehouse over 14 years ago in reply to Evgeniy Chasovnikov

Prodigy 190 points

I only needed to configurure the registers like this (before the ROM bootloader starts) to speed reduce the boot time by configuring the EMIF (as the power on defaults are very slow.

Dave

0 Evgeniy Chasovnikov over 14 years ago in reply to David Whitehouse

Intellectual 440 points

David?

1 so fat32 or fat16?

2 you give name for image: boot5505.bin?

3 make secure image with keys and settings from pdf file for development?

4 not use bonding?

0 David Whitehouse over 14 years ago in reply to Evgeniy Chasovnikov

Prodigy 190 points

1) FAT32

2) boot5505.bin

3) Secure keys as per PDF

4) Not bound to a device

Using the command line:

"C:\Program Files\SecureBootImageTool\C55BootImageV2.exe" -encrypt -in DSPProgram.out -out boot5505.bin -reg PreBootloaderRegisterConfiguration.dat -key 00000000000000 -seed_offset 0 -seed 2F71C554EEDF65

0 Evgeniy Chasovnikov over 14 years ago in reply to David Whitehouse

Intellectual 440 points

oops!

key=0???!!!

in pdf it other 1...1 may it is the problem!!! Thanks I will try!

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C55BootImage.exe register configuration