Forum Discussion

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

Security feature in Quartus

Hi, I'd like to use the security feature of my stratix IV. But, it seems that a non-volatile key has already been programmed. When I try to program my ekp file, Quartus says : "Programming ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Non-volatile key is one time programmable (OTP). So when the OTP key is there you cannot reverse the process,and you cannot overwrite with the volatile key. EKP shud have the information of the key. If u want to further understand the file, you can convert the EKP to SVF format.and u will see it clearly.