ARM-JTAG Pinout

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

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...connectors.pdf

Additional links in that document.

--
Rich Webb Norfolk, VA

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...ttached/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