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PICList Thread
'prog. connector'
1998\12\28@214426 by Pablo Marcelo Forneris

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Hi,
   Is there an standard connector for serial in-system program (Vdd, GND,
MCLR, Clock and Data)?
   Thanks

   Pablo Marcelo Forneris

E-Mail: spam_OUTlu7hgvTakeThisOuTspamsatlink.com
.....pablofornerisKILLspamspam@spam@usa.net

ICQ# 2789043

1998\12\29@064953 by uter van ooijen / floortje hanneman

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>     Is there an standard connector for serial in-system program (Vdd,
GND,
> MCLR, Clock and Data)?

There is the a single-strip pin header standard named after the guy who
first used it in a CC article. Don Lancaster (http://www.dontronics.com) uses
the same pinout somewhere in his simm-stricks.

I prefer to use a dual-strip (component side):

1 2
3 4
5 6

1 mclr
2 Vdd
3 Gnd
4 RB7
5 pin cut off (key)
6 RB6

Wouter.

1998\12\29@081620 by Andy Kunz

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At 11:28 PM 12/28/98 -0300, you wrote:
>Hi,
>    Is there an standard connector for serial in-system program (Vdd, GND,
>MCLR, Clock and Data)?

No.  You make it to best fit your connector and PCB layout needs.

Andy


==================================================================
Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA
==================================================================

1998\12\29@093953 by Brian Aase

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Date sent:              Tue, 29 Dec 1998 12:40:51 +0100
Send reply to:          pic microcontroller discussion list <PICLISTspamKILLspamMITVMA.MIT.
EDU>
From:                   wouter van ooijen / floortje hanneman <.....wfKILLspamspam.....XS4ALL.NL>
Subject:                Re: prog. connector
To:                     EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU

If you are indeed looking for Don Lancaster, you will have better luck with:

http://www.tinaja.com

> There is the a single-strip pin header standard named after the guy who
> first used it in a CC article. Don Lancaster (http://www.dontronics.com) uses
> the same pinout somewhere in his simm-stricks.

1998\12\29@172624 by Don McKenzie

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Don McKenzie wrote:

> From: wouter van ooijen / floortje hanneman <wfspamspam_OUTXS4ALL.NL>
> >     Is there an standard connector for serial in-system program
> (Vdd,
> GND,
> > MCLR, Clock and Data)?
>
> There is the a single-strip pin header standard named after the guy
> who
> first used it in a CC article. Don Lancaster (http://www.dontronics.com) uses
> the same pinout somewhere in his simm-stricks.

It was Dr. Russ Reiss in an article in June 1994 in CC Ink.
I followed the same pattern as Russ had committed it to a PCB anyway.
I hoped everyone would do the same, but for various reasons, this was
never done.

http://www.dontronics.com/hints.html
gives you the pinout for DonTronics (and HOPCO), Newfound, and ITU
programmers.

BTW It's Don McKenzie, not Don Lancaster.

Don McKenzie  @spam@donKILLspamspamdontronics.com   http://www.dontronics.com

Don's Download Dungeon http://www.dontronics.com/download.html
For more details, send a blank message to KILLspaminfoKILLspamspamdontronics.com
or RemoveMEsimstickTakeThisOuTspamdontronics.com or spamBeGonebasicsspamBeGonespamdontronics.com

1998\12\29@232745 by Jim Robertson

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At 08:08 29/12/98 -0500, you wrote:
>At 11:28 PM 12/28/98 -0300, you wrote:
>>Hi,
>>    Is there an standard connector for serial in-system program (Vdd, GND,
>>MCLR, Clock and Data)?
>
>No.  You make it to best fit your connector and PCB layout needs.
>
>Andy
>
A small suggestion, put VPP in the middle so if someone puts the connector
in the wrong way around they don't blow the shit out of something that
don't like 13V on it.

Jim

>==================================================================
>Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA
>==================================================================
>
--------------------------------------------------------
Jim Robertson
Email: TakeThisOuTnewfoundEraseMEspamspam_OUTpipeline.com.au

http://www.pipeline.com.au/users/newfound
--------------------------------------------------------

1998\12\31@155626 by Mark A Moss

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A couple of hints on connecter pinouts I have picked up:

1. Place power pins close to each other to avoid problems if one supply
voltage is present before the others.  I work with a circuit board where
Ground, +5V and +40V and other assorted signals are present on the same
connector, with 40V being located opposite of 5V and ground.  This board
is used in production to test the various options that may plug into this
connector.  If an assembler forgets to turn off the fixture before
changing the device under test, the main micro is often destroyed due to
40V making contact before ground.

2. As someone else mentioned, place power pins so that damage is not
likely to occur if the connector is either reversed, or shifted over a
pin.  Or use a connector type that is keyed to prevent either of these
cases.

3. Do not use the same connector type/style/size twice unless pin
compatible, or at least designed so that swapping the connections will
not damage the circuit.  Instead, use different size or style connectors
or make sure that the connecters are very clearly marked.

Mark Moss
Amateur Radio Operator, Technician, and General Tinkerer



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1998\12\31@164441 by paulb

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Mark A Moss wrote:

> 1. Place power pins close to each other to avoid problems if one
> supply voltage is present before the others.  I work with a circuit
> board where Ground, +5V and +40V and other assorted signals are
> present on the same connector, with 40V being located opposite of 5V
> and ground.

 Perhaps more to the point, the Ground connection should appear at both
ends of the connector, as should the main supply.  A dangerous supply
should be in the very middle.

> 2. As someone else mentioned, place power pins so that damage is not
> likely to occur if the connector is either reversed, or shifted over a
> pin.

 A good design example of this is the 30-pin SIMM.  I was, on first
"contact" with these gadgets, pleasantly surprised by the "idiot-
proofing" whereby they *survive* reverse installation.

 72-pin SIMMS have the end-grounds, but skew supply pins.  They are
very firmly keyed of course.  Perhaps the keying has been taken into
account.  Haven't looked at DIMMs (which are also firmly keyed).

 *Actually*, the thing about which I have been most impressed regarding
reverse-proofing, is the IDE bus.  This is self-evident.

Connections at: http://csgrad.cs.vt.edu/~tjohnson/pinouts/
--
 Cheers,
       Paul B.

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