[iMX8mm] Cannot find information on how to blow the "disable secure JTAG" fuse

[mekhall]

We would like to blow the SJC_DISABLE and JTAG_SMODE fuses to completely secure the device (iMX8mm) but I wasn't able to find the exact location of those fuses (bank, word, bit). Where can I find this information?

[Harvey021 · Accepted solution]

Hi @mekhall 

Additional detail is emailed to you. If not reaching out you, please let me know.

Best regards

Harvey

[jbruno79]

Hi @Harvey021 

I need information about the fuses for the imx8m mini. Could you be so kind to provide it to me? I need to disable the JTAG for security reasons.

Best Regards,

Julián

[kavita]

Hi 

In Imx8mm, Can you please share how to disable the JTAG?

[mekhall]

Hello and thanks for replying. The link you e-mailed me does not work: I get an "Access Denied" error message.

[mekhall]

To clarify: The reference manual states that these fuses should be blown, but the fusemap in the reference manual does not specify where they are located. So it seems that unless I have missed something the reference manual lacks this vital information.

If anyone knows more on this I would be interested to know how to blow these fuses.