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Detecting JTAG connection from CPU

yuri poliak
Note: This was originally posted on 11th June 2013 at http://forums.arm.com

Hi all.

I am interested to know if during the initialization process while connecting Jtag debugger to ARM device such as cortex a9, there any way to indicate from the Kernel that this interface is in use?
i would like to know if the initialization process before halting the system is using any CPU register?

thank you
Parents
  • Note: This was originally posted on 13th June 2013 at http://forums.arm.com

    Thank you for the information.
    Can you please direct me to some official paper or document that prove that "[color=#222222][font=Arial, Helvetica, sans-serif][size=2]there is no way to determine if a JTAG debugger is connected"?[/size][/font][/color]
    [color=#222222][font=Arial, Helvetica, sans-serif][size=2]
    [/size][/font][/color]
    [color=#222222][font=Arial, Helvetica, sans-serif][size=2]Thank you[/size][/font][/color]
Reply
  • Note: This was originally posted on 13th June 2013 at http://forums.arm.com

    Thank you for the information.
    Can you please direct me to some official paper or document that prove that "[color=#222222][font=Arial, Helvetica, sans-serif][size=2]there is no way to determine if a JTAG debugger is connected"?[/size][/font][/color]
    [color=#222222][font=Arial, Helvetica, sans-serif][size=2]
    [/size][/font][/color]
    [color=#222222][font=Arial, Helvetica, sans-serif][size=2]Thank you[/size][/font][/color]
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