Searching \ for '[PIC] 16F876 and 16F876A compatibility.' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=16F
Search entire site for: '16F876 and 16F876A compatibility.'.

Exact match. Not showing close matches.
PICList Thread
'[PIC] 16F876 and 16F876A compatibility.'
2007\03\29@174544 by John Dammeyer

flavicon
face
Hi,

Is there any reason why a PIC16F876A programmed with code that was
working in a PIC16F876 would not work?  Is there something specific in
the 876A that needs a code change?

Thanks

John Dammeyer

2007\03\29@175532 by Dario Greggio

face picon face
John Dammeyer wrote:

> Is there any reason why a PIC16F876A programmed with code that was
> working in a PIC16F876 would not work?  Is there something specific in
> the 876A that needs a code change?

There are some slight differences among the two, if you read carefully
datasheet or even a "Migration Document" you'll find them.

2007\03\29@180258 by Bob Blick

face picon face

--- John Dammeyer <spam_OUTjohndTakeThisOuTspamautoartisans.com> wrote:

> Hi,
>
> Is there any reason why a PIC16F876A programmed with
> code that was
> working in a PIC16F876 would not work?  Is there
> something specific in
> the 876A that needs a code change?

876A has comparators and comparator interrupts. Also
the config word is different(that may be all you need
to change). And of course your programmer won't
program an 876A if it's set to 876.

But I have migrated projects from 876 to 876A with
only changing the config word - power up reset
defaults to comparators off.

Cheerful regards,

Bob

2007\03\29@183603 by John Dammeyer

flavicon
face
Hi Bob,

Thanks.  I suspect then that the client has built the board with a
problem since I used my ICD2 to program the device and examined the
Config word to make sure it wasn't different.  No issues there that I
can see.

Just thought I might be missing something.  Comparators are off anyway
by default which in this case is a good thing.

John Dammeyer


Automation Artisans Inc.
http://www.autoartisans.com
Ph. 1 250 544 4950


> {Original Message removed}

2007\03\29@184203 by Brent Brown

picon face
Hi,

What's not working? Are you using a bootloader designed for the non-A chip? That
requires to be different as the A chip programs 4 words at a time  instead of 1.

Regards, Brent.

On 29 Mar 2007 at 15:34, John Dammeyer wrote:

{Quote hidden}

> > {Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2007 , 2008 only
- Today
- New search...