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PICList Thread
'[PICLIST] [PIC] newbie stupid questions'
2002\04\07@152156 by lulliz

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Well knowing some newbie questions could sound annoying, I sure accept
also gently redirections to on-line archive of answers to my stupid
questions... :-)

.
I got a programmer suitable for 16F84 (same number of pins)
which else PIC could I program with that?

.
Which one do you suggest me to try to begin with?
I already have some 16F86...

.
How could I infer from the name of the PIC?
16F/C86
is 16 the number of byte? what's F (orC) et-cetera..
are there simple tables where to take such informations ?

.
Is it worth to home-build programmers for the PIC one decides to
use?

Best regards, Paolo Lulli aka 'blacksheep'

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2002\04\07@164102 by Bob Blick

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> I got a programmer suitable for 16F84 (same number of pins)
> which else PIC could I program with that?

Almost any of the "F" series if you don't mind fitting a different socket
to it.

> Which one do you suggest me to try to begin with?
The 16F84 and/or 16F627 or 628

> How could I infer from the name of the PIC?
> 16F/C86
> is 16 the number of byte? what's F (orC) et-cetera..
> are there simple tables where to take such informations ?

There are some simple tables, but try to find them on the microchip site!
How about the Digi-Key catalog? It breaks them down pretty nicely, and
there are prices as well. I don't know how well their web site shows them
though.

Cheers,

Bob

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2002\04\07@170831 by Dal Wheeler

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----- Original Message -----
From: blacksheep <spam_OUTlullizTakeThisOuTspamTIN.IT>
> Well knowing some newbie questions could sound annoying, I sure accept
> also gently redirections to on-line archive of answers to my stupid
>  questions... :-)

> I got a programmer suitable for 16F84 (same number of pins)
> which else PIC could I program with that?

It depends on the programmer, which one are you using?

> Which one do you suggest me to try to begin with?
> I already have some 16F86...

16f628's are a popular upgrade from the 16f84's.  They have more
functionality built in, cheaper, and a newer platform.

I'd suggest finding someone with a programmer that supports a part like the
16f877, or 16f876.  These allow you to run bootloader type program and makes
things very easy for someone to reprogram the chip without taking it out of
the circuit or having a special programmer.  (these parts allow for a
resident program to reflash parts of its memory --Many other pics do not
allow for this.)  All that's required is a serial cable and a level shifter
(max232 or like) --can be built in less than a half hour.

Check out this:
http://www.workingtechnologies.com/htpic/PIC_bootloader.htm

> How could I infer from the name of the PIC?
> 16F/C86
> is 16 the number of byte? what's F (orC) et-cetera..
> are there simple tables where to take such informations ?

simply put F means flash and allows reprogramming.  C for more traditional
eprom structure, most only reprogrammable with a uv erase window package.
The earlier 16c84 parts were eeprom and allowed reprogramming w/o the
windowed part.  Nowadays, part naming is more consistant.

> Is it worth to home-build programmers for the PIC one decides to
> use?

It depends; the price is right --provided you don't count your time.  I'd
personally look at something like the bootloader for all your breadboard
projects.  If you want to move the project to a cheaper part like the
16f628, there are a number of "zero" parts programmers out there --although
I hear they can be flakey at times.

I've had good luck with the Conitecs' Galep 3,4 pocket programmers if you
later get to the point of wanting to purchase one.

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2002\04\09@131245 by lulliz

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Sun, Apr 07, 2002 at 03:05:54PM -0600, Dal Wheeler dixit:

> It depends on the programmer, which one are you using?

That's the matter... I don't know exactly.
Say I 'hereditated' it :-) It has exactly the same number of
'points to link' (how to call 'em properly?) as much of 16F84 pins. 18,
if I don't go wrong..

> Check out this:
> http://www.workingtechnologies.com/htpic/PIC_bootloader.htm

Here I go..

> simply put F means flash and allows reprogramming.  C for more traditional
> eprom structure, most only reprogrammable with a uv erase window package.

And .. what about 'LC' PICS? , are them re-programmable without UV?

Some more... what tools do you find useful to program in Unix/Linux?
It seems to me (maybe I go wrong) there are a lot more for MS systems.
My dream is to create my own projects and then to implement them as
kernel modules, maybe going further in embedded linux..
That's only a dream for me at the moment, the way is still far.

Best Regards,

Paolo Lulli aka `blacksheep`.

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2002\04\09@135232 by Mark J. Dulcey

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blacksheep wrote:
>>simply put F means flash and allows reprogramming.  C for more traditional
>>eprom structure, most only reprogrammable with a uv erase window package.
>
>
> And .. what about 'LC' PICS? , are them re-programmable without UV?

The "L" means that the chip is rated for low voltage operation, down to
2V. LC PICs are either OTP or UV-reprogrammable. LF PICs are flash
programmable. There are some restrictions on programming them at low
voltage; something to watch out for if you're planning to program them
in-circuit.

> Some more... what tools do you find useful to program in Unix/Linux?
> It seems to me (maybe I go wrong) there are a lot more for MS systems.
> My dream is to create my own projects and then to implement them as
> kernel modules, maybe going further in embedded linux..
> That's only a dream for me at the moment, the way is still far.

True, there is more for Windows, but there are some Linux tools. Links
to check out:

http://www.dattalo.com/gnupic/gpsim.html - GPSIM, a simulator for Linux

http://gputils.sourceforge.net/ - GPUTILS: assembler, and a linker and
librarian in progress

http://lcdproc.omnipotent.net/ - LCDPROC, a kernel driver and user-mode
client to add an LCD to Linux to display console information

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