TDA4VM-Q1: Differences between sbl and tifs.bin in HS and GP

Gaston yan

Part Number: TDA4VM-Q1

Hi experts ：

I using RTOS SDK 7.3 and evm HS board.

Our GP and HS can work normally now. For various reasons, the HS is used as a GP by masking the authentication operation. But we used different sbl and tifs.bin. We now have a requirement. We need to use the same sbl and tifs.bin to start both GP and HS normally. Is this solution feasible? If so, please provide a solution。

Looking forward to your reply，thanks a lot！

over 3 years ago

+1 Brijesh Jadav over 3 years ago

TI__Guru**** 451155 points

hi,

not sure which hs device you are using? if it is HS-SE with TI keys, SBL and tifs cannot be same on GP and HS device..

Regards,

Brijesh

0 Gaston yan over 3 years ago in reply to Brijesh Jadav

Intellectual 405 points

yes,The ti dummy key we use，thanks a lot！

0 Gaston yan over 3 years ago in reply to Brijesh Jadav

Intellectual 405 points

If we don't burn the ti dummy key and we use HS-FS for mass production, can GP and HS share a SBL and tifs.bin at this time?

0 Brijesh Jadav over 3 years ago in reply to Gaston yan

TI__Guru**** 451155 points

But, except keywritter, there is no other SW supported on HS-FS device. You need to burn the keys, convert device to HS-SE and then can use the SW.

Regards,

Brijesh

0 Gaston yan over 3 years ago in reply to Brijesh Jadav

Intellectual 405 points

I would like to know how GP's tifs.bin, FS's tifs.bin and SE's tifs.bind have been processed, and why can't they be used with each other?

0 Gaston yan over 3 years ago in reply to Brijesh Jadav

Intellectual 405 points

Yes, it is HS-SE with TI keys. After various attempts, I also know that GP and HS cannot be shared。I would like to know how GP's tifs.bin, FS's tifs.bin and SE's tifs.bind have been processed, and why can't they be used with each other?

I guess, GP's tifs.bin is a very pure tifs.bin. ti-fs-keywriter.bin is signed by ti public key. The tifs.bin of HS-SE is encrypted and signed by the ti dummy key. I am not sure, please advise

0 Brijesh Jadav over 3 years ago in reply to Gaston yan

TI__Guru**** 451155 points

Because on HS device, the tifs is signed and is authenticated by the ROM, so they cannot be same.

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TDA4VM-Q1: Differences between sbl and tifs.bin in HS and GP