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'[PIC]:Need programmer for 16F628'
2001\10\08@140248 by PY2NI

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   Hi!

   I'm looking for a easy to build programmer for 16F628 (others chips are
welcome of course), does anybody have such programmer plans. Thanks in
advance for any information.

Hamilton T. Horta

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2001\10\08@141328 by Herbert Graf

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Lokk for 16F84A programmers, most can be used with the 16F62x series
(provided the software you use supports them). I'm using a 16C84 programmer
and it works fine with other flash parts (such as the 16F877, although I use
an ICSP adapter for that one). TTYL

> {Original Message removed}

2001\10\08@142612 by Brent Brown

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>     Hi!
>
>     I'm looking for a easy to build programmer for 16F628 (others
>     chips are
> welcome of course), does anybody have such programmer plans. Thanks in
> advance for any information.
>
> Hamilton T. Horta

Hi,

I just built a JDM programmer and I'm using it to program
PIC16F627's. Runs straight off a serial port, no external power
supply required, can be used for ISCP. Look for the two transistor
circuit at:

http://www.jdm.homepage.dk

Make sure you change the circuit and tie RB4 to ground instead of
+5V, this little gotcha got me. Then download this really nice
windows programming software from:

http://www.ic-prog.com

Have fun!

Brent Brown
Electronic Design Solutions
16 English Street
Hamilton, New Zealand
Ph/fax: +64 7 849 0069
Mobile/text: 025 334 069
eMail:  .....brent.brownKILLspamspam@spam@clear.net.nz

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2001\10\08@190623 by Byron A Jeff

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On Mon, Oct 08, 2001 at 02:52:59PM -0300, PY2NI wrote:
>     Hi!
>
>     I'm looking for a easy to build programmer for 16F628 (others chips are
> welcome of course), does anybody have such programmer plans. Thanks in
> advance for any information.

Take a look at my Trivial LVP programmer. It does have a couple of limitations.
First off it's Low Voltage Programming only. This means that it's limited to
the 16F62X and 16F87X series chips. Secondly I've targeted all my software
for Linux. It's a Tait style programmer and should work with DOS/Windows
Tait style software. However I haven't gotten any reports yet of it working
with DOS/Windows software. Lastly because it's Low Voltage, you lose the
LVP pin, which is RB4 on the 16F628.

On the upside, it's simple and cheap. One HCT chip and one resistor. Requires
5V only. Parts are RatShack available.

Take a look at http://www.finitesite.com/d3jsys and see if it may fit your
needs.

BAJ

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2001\10\09@140306 by PY2NI
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>
> I just built a JDM programmer and I'm using it to program
> PIC16F627's. Runs straight off a serial port, no external power
> supply required, can be used for ISCP. Look for the two transistor
> circuit at:
>
> http://www.jdm.homepage.dk
>
> Make sure you change the circuit and tie RB4 to ground instead of
> +5V, this little gotcha got me. Then download this really nice
> windows programming software from:

   Hi Brent!

   Acctualy I have one programmer and it was not working properly (PROPIC
2), to my surprise RB4 was connected to +5V also, I just hardwired the pin
to GND and programmer is now working great. Thank you a lot for the tip, by
the way PROPIC2 is much faster than ICprog which I have tested, let me now
if uou want a copy.


Regards
Hamilton Horta







{Quote hidden}

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2001\10\09@155049 by Brent Brown

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{Quote hidden}

Hello Hamilton,

Thanks, I'll download the and have a look at the PROPIC2 software.

I presume that pin 10 is tied to +5V on these programmers for a
reason. Do you know which chips this applies to? The IC-Prog
software has a note saying to connect RB4 (pin10) to ground for the
PIC16F627 & 628, but doesn't say which chips need it set back to
+5V.

Brent Brown
Electronic Design Solutions
16 English Street
Hamilton, New Zealand
Ph/fax: +64 7 849 0069
Mobile/text: 025 334 069
eMail:  @spam@brent.brownKILLspamspamclear.net.nz

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2001\10\09@173910 by PY2NI

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>
> Hello Hamilton,
>
> Thanks, I'll download the and have a look at the PROPIC2 software.
>
> I presume that pin 10 is tied to +5V on these programmers for a
> reason. Do you know which chips this applies to? The IC-Prog
> software has a note saying to connect RB4 (pin10) to ground for the
> PIC16F627 & 628, but doesn't say which chips need it set back to
> +5V.
>
> Brent Brown
>

   Hi again Brent, as far as I can see the problem arrives with the whole
28 and 40 pin family, when pluged to the programmer RB4 (pin-10) become VDD
(pin-32).


Hamilton Horta

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2001\10\10@032144 by Tsvetan Usunov

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>    I'm looking for a easy to build programmer for 16F628 (others chips are
>welcome of course), does anybody have such programmer plans. Thanks in
>advance for any information.
>
>Hamilton T. Horta

Hi,

http://www.olimex.com/dev in PIC section you will find some schematics.

Best regards
Tsvetan
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PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb)
Development boards for PIC, AVR and MSP430  (http://www.olimex.com/dev)

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