Forum Discussion

johny7401's avatar
johny7401
Icon for New Contributor rankNew Contributor
5 years ago

MAX10 "JTAG_Lock_Unlock"

I have unintentionally LOCK a chip 10M25DAF256C8G due to JTAG secure option and wrong key in POF file. In Intel site I have download "JTAG Lock Unlock" project to unlock my chip, but I can NOT conf...
YuanLi_S_Intel's avatar
YuanLi_S_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi Johny,


Please let me know if my understanding is not correct. So, currently you are able to do UNLOCK / LOCK design secure mode based on the design example and you would like to know how to leverage the design example for programming the MAX 10.


If it so, then my recommendation for this is, you disbable the JTAG secure mode with UNLOCK, enable external JTAG and then program encrypted bitstream with external JTAG.


Thank You.


johny7401's avatar
johny7401
Icon for New Contributor rankNew Contributor
5 years ago

Hi YuanLi_S_Intel!

Currently I am NOT able to do UNLOCK / LOCK design secure mode based on this design example, because I have LOCKed JTAG more earlier when I had unintentionally tried to enable JTAG secure mode in my project's POF file and the POF was encrypted with the WRONG key. (see ''ug_m10_config.pdf" UG-M10CONFIG 2020.06.30, page 40). Since time my chip is LOCKed and I can NOT implement any SOF/POF file into my chip.