Hello,
Is there a way to disable JTAG on i.MX 7 permanently (e.g. using fuses?). The reference manual mentions a SJC Disable Fuse in Chapter 4.12.6.4 "SJC Disable Fuse", as well as Secure JTAG control in chapter 6.4.3.6 "Secure JTAG control". However, Chapter 5 "Fusemap" does not list any of this fuses (i.MX 6 has JTAG_SMODE and SJC_DISABLE listed, both are missing in the i.MX 7 reference manual)...
Best regards,
Stefan
Solved! Go to Solution.
Hi Stefan
Best regards
igor
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Hi Stefan
Best regards
igor
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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Thanks Igor, that helped!
I used the U-Boot fuse command, where the BOOT_CFG0 fuse is available through Bank 1, Word 3:
fuse prog -y 1 3 0x200000
With that, JTAG is no longer available.