There is a new application note at Microchip's site. Its title is:
"Engineer's Assistant Using a PIC16F84A"
and it can be downloaded from:
ftp://ftp.microchip.com/Download/Appnote/Category/PIC16/00689A.PDF
the document size is around 230Kb.
It is a very interesting instrument with a very low count part. It features
a logic probe, a logic state analyzer, a serial (RS-232) code receiver, a
frequency counter and a battery manager (the instrument utilizes
rechargeable batteries).
The down side is a somewhat complex PCB. In fact, there note does not have a
PCB drawing (the traces). It has just an artwork of the component side
showing component layout. At least it does have the schematics and the MPASM
source code.
Apart from that, a new version of MPLAB is out. It can be downloaded from:
ftp://ftp.microchip.com/Donwload/Tools/PICmicro/DevEnv/MPLABi/Software/v40/V
414
At 14:11 21.4.1999 -0300, you wrote:
>There is a new application note at Microchip's site. Its title is:
> "Engineer's Assistant Using a PIC16F84A"
>and it can be downloaded from:
>ftp://ftp.microchip.com/Download/Appnote/Category/PIC16/00689A.PDF
>the document size is around 230Kb.
>
>It is a very interesting instrument with a very low count part. It features
>a logic probe, a logic state analyzer, a serial (RS-232) code receiver, a
>frequency counter and a battery manager (the instrument utilizes
>rechargeable batteries).
>The down side is a somewhat complex PCB. In fact, there note does not have a
>PCB drawing (the traces). It has just an artwork of the component side
>showing component layout. At least it does have the schematics and the MPASM
>source code.
Actually, the whole instrument seems as a pretty clever design. I think
that I will try to build one, just for fun. It is only pitty, that there is
no .ASM file included. To retype the whole program from PDF file will be
pretty boring.
The only thing which I am missing in this system is some kind of I2C
protocol analyser. But maybe with bigger PIC, this function can be added.
PavelK
**************************************************************************
* Pavel KorenskyÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* DATOR3 LAN Services spol. s r.o.ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* Styblova 13, 140 00, Prague 4, Czech Republic ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
*ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* PGP Key fingerprint:Ê F3 E1 AE BC 34 18 CB A6Ê CC D0 DA 9E 79 03 41 D4 *
*ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* SUMMA SCIENTIA - NIHIL SCIREÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
**************************************************************************
>At 14:11 21.4.1999 -0300, you wrote:
>>There is a new application note at Microchip's site. Its title is:
>> "Engineer's Assistant Using a PIC16F84A"
(snip)
>Actually, the whole instrument seems as a pretty clever design. I think
>that I will try to build one, just for fun. It is only pitty, that there is
>no .ASM file included. To retype the whole program from PDF file will be
>pretty boring.
Do you remember a 'select text/select graphics' tool in Adobe Acrobat
reader?
a select in a *.pdf asm code section with a copy/paste in the mplab ide,
you have no need to retype anything..
There are probably a number of ways of extracting the code without
having to re-type it. Try selecting the text in ADOBE ACROBAT and using
EDIT/COPY. Then call up WORD with a new document - EDIT/PASTE and
write the thing out as a text only file.
Geoff.
> that I will try to build one, just for fun. It is only pitty, that there is
> no .ASM file included. To retype the whole program from PDF file will be
> pretty boring.
> >At 14:11 21.4.1999 -0300, you wrote:
> >>There is a new application note at Microchip's site. Its title is:
> >> "Engineer's Assistant Using a PIC16F84A"
>
> >that I will try to build one, just for fun. It is only pitty, that there is
> >no .ASM file included. To retype the whole program from PDF file will be
> >pretty boring.
Haha! I have it for you! Both the ASM and PCB layout(in protel's dos
format, sorry). I got them straight from the author, Voja Antonic.
Since I tracked down the needed files, would someone who has Protel be so
kind as to do me the favor of making postscript or pdf or hpgl files of
the top, bottom, and stuffing layers? I can place them on my site for
everyone to get.
Many thanks,
Bob
P.S. This list is pretty fast. doing a "tail -f access_log |grep probe"
my terminal screen is moving at a decent clip right now, within 10 minutes
of posting the earlier message.
I can do that Bob.
/"\
Friendly Regards \ /
X ASCII RIBBON CAMPAIGN
Octavio Nogueira / \ AGAINST HTML MAIL
=================================================== .....nogueiraKILLspam@spam@propic2.com ICQ# 19841898
>From the creator of ProPic,ProPic 2 now much better
New ProPic 2 homepage: http://www.propic2.com
PIC Programmer for Windows with down to earth price
===================================================
-----Mensagem original-----
De: Bob Blick <bobKILLspamTED.NET>
Para: .....PICLISTKILLspam.....MITVMA.MIT.EDU <EraseMEPICLISTspam_OUTTakeThisOuTMITVMA.MIT.EDU>
Data: Quinta-feira, Abril 22, 1999 12:54
Assunto: Re: New application note at Microchip: remarkable project!
>Hi Everyone,
>
>Since I tracked down the needed files, would someone who has Protel be so
>kind as to do me the favor of making postscript or pdf or hpgl files of
>the top, bottom, and stuffing layers? I can place them on my site for
>everyone to get.
>
>Many thanks,
>
>Bob
>P.S. This list is pretty fast. doing a "tail -f access_log |grep probe"
>my terminal screen is moving at a decent clip right now, within 10 minutes
>of posting the earlier message.
>
>
> Hi Everyone,
>
> Since I tracked down the needed files, would someone who has Protel be so
> kind as to do me the favor of making postscript or pdf or hpgl files of
> the top, bottom, and stuffing layers? I can place them on my site for
> everyone to get.
>
> Many thanks,
>
> Bob
> P.S. This list is pretty fast. doing a "tail -f access_log |grep probe"
> my terminal screen is moving at a decent clip right now, within 10 minutes
> of posting the earlier message.
>Haha! I have it for you! Both the ASM and PCB layout(in protel's dos
>format, sorry). I got them straight from the author, Voja Antonic.
>
>Have fun.
>
>http://www.bobblick.com/bob/projects/probe.zip
>
>By the way, a 16F84A is not required. Use a 16F84.
>
>Cheers,
>Bob
At 08:38 22.4.1999 -0700, you wrote:
>> >At 14:11 21.4.1999 -0300, you wrote:
>> >>There is a new application note at Microchip's site. Its title is:
>> >> "Engineer's Assistant Using a PIC16F84A"
>>
>> >that I will try to build one, just for fun. It is only pitty, that
there is {Quote hidden}
>> >no .ASM file included. To retype the whole program from PDF file will be
>> >pretty boring.
>Haha! I have it for you! Both the ASM and PCB layout(in protel's dos
>format, sorry). I got them straight from the author, Voja Antonic.
>
>Have fun.
>
>http://www.bobblick.com/bob/projects/probe.zip
>
>By the way, a 16F84A is not required. Use a 16F84.
>
>Cheers,
>Bob
>
Thank you very much
PavelK
**************************************************************************
* Pavel KorenskyÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* DATOR3 LAN Services spol. s r.o.ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* Styblova 13, 140 00, Prague 4, Czech Republic ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
*ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* PGP Key fingerprint:Ê F3 E1 AE BC 34 18 CB A6Ê CC D0 DA 9E 79 03 41 D4 *
*ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
* SUMMA SCIENTIA - NIHIL SCIREÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊ *
**************************************************************************
I don't know what version of Acrobat Reader you are using but 3.x can I
know can copy text to the clipboard. This, of course, assumes you are using
Win-woes.
Sebastian Dols replied to:
<cut>
It is only pitty, that there is
> >no .ASM file included. To retype the whole program from PDF file will be
> >pretty boring.
>
> Do you remember a 'select text/select graphics' tool in Adobe Acrobat
> reader?
> a select in a *.pdf asm code section with a copy/paste in the mplab ide,
> you have no need to retype anything..
The *.pdf is a list file, also in my version of acrobat at least, there
is no multi page select tool for clipboard use.
>
> Sebastian Dols replied to:
> <cut>
> It is only pitty, that there is
> > >no .ASM file included. To retype the whole program from PDF file will be
> > >pretty boring.
> >
> > Do you remember a 'select text/select graphics' tool in Adobe Acrobat
> > reader?
> > a select in a *.pdf asm code section with a copy/paste in the mplab ide,
> > you have no need to retype anything..
>
> The *.pdf is a list file, also in my version of acrobat at least, there
> is no multi page select tool for clipboard use.
The extracted .asm file is in zip format available to download at: http://www.ustr.net/picfiles as 00689A.ZIP (28417 bytes).
I used a text formating program to realign the instructions and
remmarks, it should not generate any problems at the file, but... in any
case just advise.
Remember you need to program the eeprom area in the 16F84, if you use MPASM
all you need to do is uncomment before the "DE" lines. Then assemble.
Also, a 16F84A is not required. Use a 16F84.
By Monday I'll post pdf's with the board layers flipped all the right
directions for those who wish to make pc boards and don't have Protel(like
me).
Cheers,
Bob
At 04:17 PM 4/24/99 -0400, you wrote:
>The extracted .asm file is in zip format available to download at:
>http://www.ustr.net/picfiles as 00689A.ZIP (28417 bytes).
>I used a text formating program to realign the instructions and
>remmarks, it should not generate any problems at the file, but... in any
>case just advise.
>Wagner
>Hi Wagner,
>
>You must have missed my posting last week. I have the full source code and
>also pcboard layouts:
>
>http://www.bobblick.com/bob/projects/probe.zip
>
>Remember you need to program the eeprom area in the 16F84, if you use MPASM
>all you need to do is uncomment before the "DE" lines. Then assemble.
>
>Also, a 16F84A is not required. Use a 16F84.
>
>By Monday I'll post pdf's with the board layers flipped all the right
>directions for those who wish to make pc boards and don't have Protel(like
>me).
>
>Cheers,
>Bob
>
>At 04:17 PM 4/24/99 -0400, you wrote:
>>The extracted .asm file is in zip format available to download at:
>>http://www.ustr.net/picfiles as 00689A.ZIP (28417 bytes).
>>I used a text formating program to realign the instructions and
>>remmarks, it should not generate any problems at the file, but... in any
>>case just advise.
>>Wagner
>
>
>http://www.bobblick.com/
>
the weekend provided me with some time to look into this AN from MC, and I
have made several discoveries of which I would like to inform you all.
First, the serial inputs can have up to 15 Volts. In the AN schematic there
are two 1K5 resistors to connect this voltage to the input pin of the PIC.
So about 10 mA will flow via the internal protection diodes of the PIC,
possibly lifting the whole supply voltage almost to 15 Volts (the PIC will
not survive this...), or to charge the accumulator with this extra current.
IN any case, very bad engineering done on the circuit. Also the charging
circuit has an overvoltage protection using a simple zener diode connected
directly to GND. This is not good engineering practice, if some high
voltage is indeed present, it would be better to shut off the charging
circuit (consisting of a constant current source), than simply to let it
continue working and dump it all via the zener diode. Apart from this, the
initiation of the charge with "then hold one of the 2 buttons for a longer
time to start charging" is not very well designed.
In my opinion, the overall quality of a design can be seen well when
looking at a part of it, and if I have a look at the external components
connected to the PIC, I am not very happy about this project. It stands to
reason that the software may have some serious flaws too.
Apart from my observations, it still seems a very good design, and I would
gladly have one of these "crates". Perhaps one can update the schematic,
perhaps providing zener protection for the 2 serial inputs and modification
to the charging circuit...let's see.
smart.com.ar
