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Disable JTAG on i.MX 7

Question asked by Agner on Mar 31, 2017
Latest reply on Apr 3, 2017 by Agner

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
 

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