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'[PICLIST] 'hole' in PIC information available'
2001\07\05@112315 by Montaigne, Mike - NRC

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I posted a basic question recently re: request for sample programs for the
12CE67X processor.  Getting no sample programs from the newsgroup, I asked
Microchip for some help and got some excellent assistance to get me started
from support person Brent Walters.

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2001\07\05@120728 by Dan Michaels

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Montaigne, Mike - NRC wrote:
>I posted a basic question recently re: request for sample programs for the
>12CE67X processor.  Getting no sample programs from the newsgroup, I asked
>Microchip for some help and got some excellent assistance to get me started
>from support person Brent Walters.
>
>> I would like to make a comment.  With the 'tons' of information available
>> on the PIC, it is very frustrating to me to be unable to get what I think
>> should be simple information without having to do what I did - go and
>> bother Bret Walters with a question I should have been able to find out
>> for myself.
...........


Mike, you make a very good point. It is partly in response to your
observations that I recently posted the suggestions that I did
- repeated below.

best regards,
- dan michaels
http://www.oricomtech.com
=========================

PART OF ORIGINAL FOLLOWS:

.............
You know, in retrospect, I wonder whether the piclist community
hasn't totally gone off in the wrong direction here. Instead of
offering disembodied code segments and pushing for open-source
universal programmers which entail months and months of work,
maybe we would be better served if we concentrated on the
following:

1 - "Complete" running example programs for ALL the standard PIC
   controllers that would contain a good mix of the common operations
   - interrupts, RS232, A/D, I2C, timer fcns, command processing,
   etc. This would really make it easy for newbies to get into
   any PIC of their choice. Download a completely working source
   file, assemble, program and go - rather than grab a bunch of
   disembodied code fragments written in several different dialects.

2 - "Tools" - small, complete, and verified utility programs that
   perform certain targeted functions, like I2C and SPI EEPROM
   read/write, RS232 comms at all baud rates to test links,
   programs to exercise/test proto h.w., etc. These tools could
   be offered as both source and/or hex, and people could download
   them and program into a PIC and have them running in a matter
   of minutes. They would only need be available for about 3 cpus
   - '84, '873/876, '877 - covering major pinouts. They would have
   already been verified by others, and known to work properly.

We seem to have both ends of the spectrum discussed a lot on
piclist, but where is the middle ground? Maybe it's here somewhere
and I haven't found it.
........

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2001\07\05@125434 by Montaigne, Mike - NRC

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Tks Dan,

As mentioned, I went and 'bought' my "Complete" running example programs,
for the 84 series, because that was the quickest and perhaps only way I
could find to 'jump in'.

The problem is not lack of information, it's just that it's not accessible.

It would be great if the piclist community could respond....If Microchip
responded (ant they have already with demo boards, application notes etc.,
they just haven't taken it far enough) it would be very smart marketing.

Mike

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2001\07\05@132325 by James Paul

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Mike,

I sent you via email a copy of a program that generates pulses using
the 12C672.  I didn't need any EE storage memory, so I didn't use the
12CE67X with the EE.  But this program does show how to initially
setup the part to get it to work.  It just doesn't have any EE code
in it.   Unless this wasn't what you were looking for.

                                            Regards,

                                              Jim



On Thu, 05 July 2001, "Montaigne, Mike - NRC" wrote:

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'[PIC]: Re: 'hole' in PIC information available'
2001\07\05@142945 by Quentin

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I think Dan is onto a good thing here. James, you are doing an excellent
job running the piclist.com but there are some serious holes and
information lacking. Not a fault on your side, the information available
on piclist.com is vast and in a lot of cases above a beginners head.
So I would suggest:
We use the space on piclist.com that James offer and:
First get the user to read the PIC FAQ.
Select the most common PIC's that beginners will start on. Dan already
mentioned the '84, '873'/'876, '877. To that I would add the 12C508/9.
We can expand the FAQ and point out all the pitfalls (Oscall, pins,
oscillator, etc.) for each processor.
Under each processor we give all the code for common used routines that
Dan already mentioned and we can add some more to.
The code must be clearly described so that a beginner will know what
each line does (learn from example). One set of code only per routine,
not multiple codes to show different ways of doing the same thing.
No "shortcuts" in the routine to save a bit of program space.
No macro's or directive language. I know this is there to makes things
easier, but it can be just as confusing if you don't know what they are.
Use only ASM instructions as described in the PIC data books.
Use only MPASM as it is written by Microchip for users of their products
and is free. (or decide on a better one, but the point is it must be a
common single one)

Think of these as open source routines (Unix style, as Bob A said). The
user can do with it what he likes.

Quentin

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'[PIC]: 'hole' in PIC information available'
2001\07\05@144516 by Dan Michaels

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Montaigne, Mike - NRC wrote:
>Tks Dan,
>
>As mentioned, I went and 'bought' my "Complete" running example programs,
>for the 84 series, because that was the quickest and perhaps only way I
>could find to 'jump in'.
>
>The problem is not lack of information, it's just that it's not accessible.
>
>It would be great if the piclist community could respond....If Microchip
>responded (ant they have already with demo boards, application notes etc.,
>they just haven't taken it far enough) it would be very smart marketing.
>

Hi Mike,

I am re-posting your original msg here. There has been a definite
lack of response on piclist - regarding the "merits" of what I
suggested, but who knows .......

- dan
=================

MIKE'S ORIGINAL MSG:

  I have some limited experience with the 16F84 but need to do a project with
  the 12C67X chip and I am trying to find some simple examples of code to help
  me get started.  I have searched Microchip and the web and last years
  messages from this news group but have not learned the secret of finding
  programs relating to a specific processor line yet.  If anyone can help me
  get started, it would be greatly appreciated.  I have started trying to
  write a program to read pin 7 (A-D value between 0-5V) and output either the
  upper 4 or lower 4 bits on pins 2, 3, 5, & 6 using pin 4 as an upper/lower
  selection input.  I thought this would give me a good start learning how to
  set up I/O with the chip.  I'll worry about interrupts, timers, EPROM etc..
  later.


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'[PIC]: Re: 'hole' in PIC information available'
2001\07\05@152247 by jamesnewton

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YES! YES! YES! YES!

Pant, pant, pant!!!!!!

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'[PIC]: 'hole' in PIC information available'
2001\07\05@153123 by jamesnewton

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I didn't notice that original post (my bad) but note that
www.piclist.com/techref/piclist/begin.htm
does have a few tutorial samples that may fit Mike's needs.
www.piclist.com/techref/piclist/cheapic/swcnt.htm
part of
http://www.piclist.com/techref/piclist/cheapic
is a good one. I don't think Stan Ockers [ockers at anl.gov] got enough
positive feedback and encouragement or help to continue with the cheapic
project.

I converted the old Pic Source book by Mike Edwards from Parallax to
Microchip mnemonics using Tony's Parapic program and did some clean up, but
more cleanup and testing is needed
http://www.piclist.com/techref/microchip/seepicsrc/index.htm

I really, really hope some people will feel the desire to take time to do
this.

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{Original Message removed}

2001\07\09@234953 by Heinz Czychun

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At 11:23 AM -0400 7/5/01, Montaigne, Mike - NRC wrote:
>I posted a basic question recently re: request for sample programs for the
>12CE67X processor.  Getting no sample programs from the newsgroup, I asked
>Microchip for some help and got some excellent assistance to get me started
>from support person Brent Walters.


       Hi Mike,

       Would these be of any use ??

       http://www.microchip.com/0/appnote/category/12cxxx/index.htm

Heinz

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