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Altera_Forum's avatar
Altera_Forum
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11 years ago

Encrypted rbf loading on Stratix IV

Hi,

I have a Stratix IV on a a Terasic TR4 development kit.

I'm trying to load an encrypted bitstream on the stratix IV.

I'm already able to load an encrypted bitstream using FPP in Quartus II:

- program the stratix IV with a Parallel Flash loader

- load the pof directly in the flash

- program the key .ekp

Then at reset, the bitstream is decrypted and programs the Stratix IV.

But it has 2 main drawbacks : It's very slow and I want to have a command line solution (preferably with a .rbf file)

Would you have a better solution ? Is a direct loading from USB blaster possible ?

Do you know the related command line ?

Thanks for your help

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    Hi again :)

    I've tried to use the Passive Serial loading using the mblaster tool.

    This seems to allow the loading of an encrypted bistream. I put the MSEL1 to 1 on the board, the cable is well detected by the software. At the end of the loading (on , the tool says the configuration is loaded successfully but the configuration does not run on the fpga ... any clue ?

    I have another question:

    - even if it's very slow, I dit use the PFL loading http://www.altera.com/literature/an/an478.pdf which works

    I'd like to script it but I'm not able to find how to "attach a flash device" with a pof file in quartus_pgm

    Where could I find the way to do that ?

    Thanks
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    I did read altera documentation and it seems to be possible to load encrypted design in Passive serial mode (AN556).

    But I can't find how to do that using my TR4 board !

    Is it possible ?

    Should I use the USB Blaster ?

    How could I do that ?

    Thanks