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Date:	Fri, 16 Nov 2012 16:11:35 -0800
Message-ID:	<CAN0Jx-8i7-MRmKHnR1STJaMAjZM6moUQYL3XLQNYcmM3M1p3BA@mail.gmail.com>
Subject:	Re: [geda-user] OT: ARM JTAG connectors
From:	Russell Dill <Russ DOT Dill AT asu DOT edu>
To:	geda-user AT delorie DOT com
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On Fri, Nov 16, 2012 at 4:02 PM, Dave McGuire <mcguire AT neurotica DOT com> wrote:
> On 11/16/2012 06:53 PM, Russell Dill wrote:
>>>> I don't know about pogo pins but I've switched to 50 mil pitch SMT
>>>> connectors instead of 0.1 inch PTH.
>>>>
>>>> digikey has a range of pogo pins, IIRC you can put them (individually)
>>>> on a second PCB such that they line up with the target board's
>>>> targets.
>>>
>>>   That's pretty much what I'm looking for, yes.  They are all over eBay
>>> as well.  I'm looking for a "snap in" assembly with those pins, though.
>>> (see other message)
>>>
>>
>> I'm guessing you are looking for something very similar to this:
>>
>> http://hhuc.us/2008/Interfacing%20to%20the%20HP20b%20V3.pdf
>>
>> but snapping to the pcb rather than the case.
>
>   Yes, pretty much exactly like that.  Some company was putting those
> together and targeting them specifically at (I think) the ARM JTAG market.
>
>   And...HEY...are those guys hacking on HP calculators, squirting
> user-written code into their innards??

All the newly produced HP calculators run ARM cores afaik, with the
remakes of older calculators (HP-12C, 15C, etc) running the original
ROM in an emulator.

The hp 30b is a popular platform for hacking:
http://commerce.hpcalc.org/34s.php

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