MAX10 Design Security

Hi,

Please find my response below:

Question 1: Allow encrypted POF only

If I enable encrypted POF, I am able to re-programm the FPGA at a later

stage with a non-encrypted POF. This does not make sense to me, can you

please comment on this issue.

Nope, this is wrong. You cannot program non-encrypted POF once JTAG Secure is enabled.

Question 2: Enable JTAG Security

It is my understanding that enabling JTAG security means that I cannot

reprogram the FPGA. The exception would be if I were to use JTAG Secure

Unlock via internal JTAG WYSIWYG. However, I have not installed this

feature. My question is: Is internal JTAG WYSIWIG is disabled by default

or do I need to disable it?

Nope, this is not enabled by default. You may refer to user guide below for the method to enable it:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an556.pdf (Page 36)

Question 3: Verification of JTAG Secure

Is there an easy way to test if JTAG secure is applied?

If you have the external header to connect with JTAG. The easiest way is to try to access using that. It will not be able to access if JTAG secure is enabled.

Thank You.

Bruce