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'[OT:] Adding .100 ICSP Headers To Protoboard'
2004\03\19@223230 by Robert L Cochran

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I have a protoboard (the Datak model 12-617) on which I plan to plug in
a PIC16F88. This protoboard has a breadboard like system of tie points
and buses on the solder side. I'm using an 18 pin socket for this, and
want to be able to do in-circuit serial programming on the chip.

I have 2 different programmers: the Warp-13A from Newfound Electronics
and the EPIC Serial Programmer from MicroEngineering Labs. The EPIC has
a 10 pin header block J3 that looks like this:

http://microengineeringlabs.com/support/icsp.htm

Now my question is, how do I install .100 headers as two rows of 5 pins
each, that can be plugged into with a 10-pin connector, on the Datak
protoboard? The tie points are electrically connected into 5 pin buses,
breadboard style. So it seams to be that if I solder in 2 rows of Molex
.100 header pins, 5 pins to a row, row 2 will be electrically connected
to row 1, which I don't want.

The Warp-13a has 5 header pins for ICSP, making the corresponding ICSP
headers a lot easier to install on the Datak boards. (Why don't these
protoboard manufacturers have web sites featuring tutorials on using
their boards, anyhow?)

Thanks!

Bob

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2004\03\20@092003 by Kenneth Lumia

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Bob,

My suggestion is to build an adapter. It consists of the 10 pin header
connected to a small PCB that "spreads" each set of
5 pins out to standard spacing suitable for plugging into the protoboard. If
you don't want to create a pcb, you may be able
to saw up a small piece of scrap protoboard to accomplish the
same goal. I've done this in the past and it works quite well.  Sorry, I
don't have a picture, but it is probably clear from the description.

Ken

{Original Message removed}

2004\03\20@125924 by Doctor Who

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For experimenting I tend to solder the 10 pin header into veroboard then -
delicately! - grind the track away between the pins. I use a hand held
mini-drill with a small grinder thingy rather like a dentist's drill bit.

Then I snip a wire wrap IC socket down the middle (or use a row of long
pinned headers) & push the pins thru the vero board so they line up with
header pins. Have to drill the holes out a bit. Then solder & you have a
socket you can plug into vero. Jumper wires go from the pins to
PIC/components on the veroboard.

The pattern looks like so :-

-----*--o o--*----   Veroboard track
-----*--o o--*----
-----*--o o--*----
-----*--o o--*----
-----*--o o--*----

Make sense? It uses a lot of real estate on the proto b. so you usually have
to use two such boards, depending how many components you have.

My 20c worth - Brian


>
>I have a protoboard (the Datak model 12-617) on which I plan to plug
>
>Now my question is, how do I install .100 headers as two rows of 5 pins
>each, that can be plugged into with a 10-pin connector, on the Datak
>protoboard?

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2004\03\20@151451 by Jesse Lackey

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Hi,

This might be a bit of an aside, maybe helpful.
I used to use the Epic, and my first pcbs had a dual-5pin header on them
wired the same way as their 40pin zif socket programmer.  There was some
data on their website about this pinout as I recall; I also followed the
traces on the 40pin zif and it made sense.

It worked well, much to my relief.  Note that it is important to keep
cables short.  I tried to proto this up on a solderless breadboard and
it didn't work, because I was using 2' long test leads.

Then I got an ICD2, with the telephone-jack style connector.

So what I wound up doing is making my own 5-pin header, with the signals
(you only need 5, I don't know why Epic uses a 2x5 header) the same way
on every pcb I make.  I fabricated up my own ICD2 to jesse-ICSP cable,
with telephone type jack at one end, and a row of 5 female .1" sockets
on the other, with polarity marked on the cable and pcbs.  Has worked great.

Long story short, for the rare times I need to use the Epic (for
programming PICs unsupported by the ICD2) I use short test jumper wires
from EPIC to my jesse-ICSP, this has worked fine.  If I ever need to do
a bunch I'll just make an EPIC -> jesse-ICSP cable.

So I vote make your own 5-pin arrangement (maybe the same way as the
Warp-13a?) and create a cable to deal with the Epic.  Then you can use
warp-13a, Epic, and ICD2 (with another custom cable) in the future if
you'd like.

Hope it helps
Jesse



Robert L Cochran wrote:
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2004\03\21@110436 by Robert L Cochran

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Thanks to all who responded to this. I'll try out each suggestion in the
interests of experimenting. I've bought up a lot of materials including
something new for me, Datak FR-4 protoboard (their No. 12-601, labeled
on the package "For circuits with many DIP's). I don't have veroboard or
a mini drill as Brian suggests, but I'll get to it.

This is a good education for me, I'm learning a lot.

Thanks

Bob


Robert L Cochran wrote:
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2004\03\21@110440 by Robert L Cochran

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Hi Brian,

What brand of drill are you using?

If you can send close-up photos of your veroboard socket to me off-list
I'd be grateful. I understand the grinding the track method you are
discussing, (love the pattern you drew for me!), but not the wire wrap
socket bit.

There is no need to send photos if doing so is inconvenient.

Thanks

Bob

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2004\03\23@151356 by Doctor Who

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part 1 2688 bytes content-type:text/plain; format=flowedG'day Rob  - sorry for this long delay. I'm out on the road coupla times a
week.

>What brand of drill are you using?

Dunno - it's a small no-name from Jaycar that fits in the palm of your hand.
9 -12V, rpm 8000-18000 it sez on the side. They're a standard hobby shop
item.
>
>If you can send close-up photos of your veroboard socket to me off-list
>I'd be grateful. I understand the grinding the track method you are
>discussing, (love the pattern you drew for me!), but not the wire wrap
>socket bit.

OK, attached is image, let's know if clear 'nuff? Gotta compress a lot 4 the
list.
The central pins is a std. 14 pin double row PCB header block soldered into
vero. In the row of holes alongside is a standard single row (7 ea. side)
PCB header with the long pins pushed thru from the component side so the
pins stick out on the copper side. There they arer soldered to the tracks.
The ribbon cable clips onto the double row header and the whole thing takes
up a bit more spce than a standard 14 pin DIP. I have a similar pair of 34
pin connectors which also plug into vero.
Jumper wires push into the vero & make connections to your cct.
>
>There is no need to send photos if doing so is inconvenient.

No worries!

Cheers - Brian.
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part 2 9786 bytes content-type:image/pjpeg; name="image02.jpg" (decode)

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