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'[OTish] In circuit programmer for production'
1999\04\01@015855 by Quentin

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Most of the serial programmers I've seen is more inclined towards the
hobbiest or for single IC programming. I am looking for a programmer
which you can do in circuit programming for production cards.

Also, can you do gang (multiple boards at a time) programming with
serial?
Is there such a programmer?
I guess it will also have to be a programmer that stores the program in
it's own memory (free standing).

Quentin

1999\04\01@072958 by Gerhard Fiedler

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At 08:57 04/01/99 +0200, Quentin wrote:
>Also, can you do gang (multiple boards at a time) programming with
>serial?
>Is there such a programmer?
>I guess it will also have to be a programmer that stores the program in
>it's own memory (free standing).

i'm pretty sure some of the vendors for professional programmers have gang
programmers which do pics. have you looked at the bigger ones (like
data-i/o and the like)?

ge

1999\04\01@073010 by wwl

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On Thu, 1 Apr 1999 08:57:28 +0200, you wrote:

>Most of the serial programmers I've seen is more inclined towards the
>hobbiest or for single IC programming. I am looking for a programmer
>which you can do in circuit programming for production cards.
>
>Also, can you do gang (multiple boards at a time) programming with
>serial?
>Is there such a programmer?
>I guess it will also have to be a programmer that stores the program in
>it's own memory (free standing).
>
>Quentin
There is an ICP adaptor for Promate

1999\04\01@084545 by Ralph Stickley

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We haven't used these for in circuit programming, but that might just require a
clip on device/adaptor thingie.  Check out:

http://www.tribal.com

We've used their DOS and now Windows based programmers - they do everything we
throw at 'em (about 12 different devices).  However,
they haven't gotten the 16F877 chips for samples, thus, I still
can't program mine!:-(

(Still looking for my 'at home' serial port programmer...:-)

Quentin wrote:
{Quote hidden}

1999\04\01@085009 by Ralph Stickley

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We haven't used these for in circuit programming, but that might just require a
clip on device/adaptor thingie.  Check out:

http://www.tribalmicro.com

We've used their DOS and now Windows based gang programmers - they do
everything we throw at 'em (about 12 different devices - yes we have
adaptors running out our ears!:o).  However, they haven't gotten the
16F877 chips for samples, and won't release their upgrade until they
have fully tested it (imagine that!) thus, I still can't program
my samples!:-(

Otherwise, support is excellent, prices are decent, and their software
is very solid with lots and lots and lots of devices supported...
did I mention that they support a lot of different devices ?

Good luck!
Ralph

(Still looking for my 'at home' serial port, incircuit programmer...:-)

Quentin wrote:
{Quote hidden}

1999\04\01@085417 by Quentin

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Thanks, I had a look at MC web. Read more about it here:

http://www.microchip.com/10/Tools/picmicro/program/icsp/index.htm

Quentin


Mike Harrison wrote:

> There is an ICP adaptor for Promate

1999\04\01@090044 by Quentin

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April fool, right?

:)
Quentin


Ralph Stickley wrote:
>
> We haven't used these for in circuit programming, but that might just require
a
> clip on device/adaptor thingie.  Check out:
>
> http://www.tribal.com
>

1999\04\01@094848 by Ralph Stickley

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Oops, Dang, thought that e-mail cancel thing worked :-o
See Rev. 0.2, should be:

http://www.tribalmicro.com

Ralph

(I've changed my mind so many times, I forgot where I put it :-)

Quentin wrote:
>
> April fool, right?
>
> :)
> Quentin
>
> Ralph Stickley wrote:
> >
> > We haven't used these for in circuit programming, but that might just requir
e a
> > clip on device/adaptor thingie.  Check out:
> >
> > http://www.tribal.com
> >

1999\04\06@171249 by John Payson

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|Most of the serial programmers I've seen is more inclined towards the
|hobbiest or for single IC programming. I am looking for a programmer
|which you can do in circuit programming for production cards.

|Also, can you do gang (multiple boards at a time) programming with
|serial?
|Is there such a programmer?
|I guess it will also have to be a programmer that stores the program in
|it's own memory (free standing).

I have built and used a device to program 12C508's on 10 boards "at
once" [it does them one at a time, but an entire panel can be inserted
and all ten devices will be programmed].

The biggest problem I had was that once a 12C508 has been programmed to
use the internal oscillator, it is very sensitive to the rise time of
the VDD supply.  Although VPP can't go to +13 volts before VDD has got-
ten close to +5(*) the part will start running soon after VDD hits about
2 volts.  I thus had to "beef up" my programmer's +5 power supply from
my original design in order to verify parts reliably.

(*) The first batch of PICs I burned did not have this problem; I turned
on the VPP and VDD supplies simultaneously and everything worked.  The
later ones, though (still 508's, though, not 508A's) wouldn't work unless
the power-on timing was just right.

Otherwise, designing a programmer for gang/ISP use isn't really hard or
complicated.  All you need to do really is have 10 (or however many) clock
wires; all the data wires and power supplies can be shared (subject to
the caveat about VDD rise times).  If you are leaving /MClr enabled the
VDD rise time probably won't be a problem, but otherwise it will be.

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