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Altera_Forum's avatar
Altera_Forum
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14 years ago

Sequrity key programmed. Is it possible to use JTAG for sof downloading?

Hello.

I have a board with Stratix-IIGX. Sequrity key is downloaded into the IC.

Sequrity key support licence is installed for the Quartus (10.1).

I have key file for the board and I can make sequred .pof for it.

If I download my .pof into the configuration flash, it works.

But I can't use JTAG to download .sof into thу board (errors during downloading).

I can't find, how to make sequred .sof with my sequrity key file.

So, is it possible to use JTAG downloading with sequred FPGA?

The documentation contains words, that encryption with JTAG is not supported, but there is not written what does it means.

Maybe, the single is way to get a board without sequrity key programmed?

Thank you in advance for answers.

3 Replies

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

    If I remember correctly, you cannot download using JTAG to a chip with the key set. You can still use JTAG to do signaltap though. However, you will have to load the code through PS, AS, FPP...