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ARM-JTAG Pinout

Discussion in 'Embedded' started by Tim Wescott, Jun 29, 2012.

  1. Tim Wescott

    Tim Wescott Guest

    I have several ARM evaluation boards, and they all have exceedingly
    similar pinouts on the JTAG port, varying only in how they treat TRST.

    Is there a standard out there on what the JTAG port should look like? If
    so, who maintains it? Is it available on the web?

    I'm kinda hoping for "yes", "ARM", and "here you go", but I'll take what
    I can get.

    --
    My liberal friends think I'm a conservative kook.
    My conservative friends think I'm a liberal kook.
    Why am I not happy that they have found common ground?

    Tim Wescott, Communications, Control, Circuits & Software
    http://www.wescottdesign.com
     
    Tim Wescott, Jun 29, 2012
    #1
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  2. Tim Wescott

    Rich Webb Guest

    On Fri, 29 Jun 2012 11:46:26 -0500, Tim Wescott <>
    wrote:

    >I have several ARM evaluation boards, and they all have exceedingly
    >similar pinouts on the JTAG port, varying only in how they treat TRST.
    >
    >Is there a standard out there on what the JTAG port should look like? If
    >so, who maintains it? Is it available on the web?
    >
    >I'm kinda hoping for "yes", "ARM", and "here you go", but I'll take what
    >I can get.


    Yes, ARM. Here you go:

    http://infocenter.arm.com/help/topic/com.arm.doc.faqs/attached/13634/cortex_debug_connectors.pdf

    Additional links in that document.

    --
    Rich Webb Norfolk, VA
     
    Rich Webb, Jun 29, 2012
    #2
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  3. Tim Wescott

    Tim Wescott Guest

    On Fri, 29 Jun 2012 12:58:27 -0400, Rich Webb wrote:

    > On Fri, 29 Jun 2012 11:46:26 -0500, Tim Wescott <>
    > wrote:
    >
    >>I have several ARM evaluation boards, and they all have exceedingly
    >>similar pinouts on the JTAG port, varying only in how they treat TRST.
    >>
    >>Is there a standard out there on what the JTAG port should look like?
    >>If so, who maintains it? Is it available on the web?
    >>
    >>I'm kinda hoping for "yes", "ARM", and "here you go", but I'll take what
    >>I can get.

    >
    > Yes, ARM. Here you go:
    >
    > http://infocenter.arm.com/help/topic/com.arm.doc.faqs/attached/13634/

    cortex_debug_connectors.pdf
    >
    > Additional links in that document.


    Thank you.

    --
    My liberal friends think I'm a conservative kook.
    My conservative friends think I'm a liberal kook.
    Why am I not happy that they have found common ground?

    Tim Wescott, Communications, Control, Circuits & Software
    http://www.wescottdesign.com
     
    Tim Wescott, Jun 30, 2012
    #3
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