Searching \ for 'PIC PROBLEM HELP!' 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=pic
Search entire site for: 'PIC PROBLEM HELP!'.

Truncated match.
PICList Thread
'PIC PROBLEM HELP!'
1999\10\13@003149 by Mike M

flavicon
face
Hey if u plug in a pic chip specifically a 16c84 right out the packaging un prog
rammed and wire it to +5v and mclr to +5v trough a 1k resistor and place a 4mhz
crystale with two caps on it going to ground should the crystal be oscillating i
f u put a logic probe on it or no? cause my chip isnt.  Im new to pic's..

Send someone a cool Dynamitemail flashcard greeting!! And get rewarded.
GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41

1999\10\13@004051 by paulb

flavicon
face
Mike M wrote:

> Hey if u plug in a pic chip specifically a 16c84 right out the
> packaging un programmed and wire it to +5v and mclr to +5v trough a 1k
> resistor and place a 4mhz crystale with two caps on it going to ground
> should the crystal be oscillating if u put a logic probe on it or no?

 No.  Program it.
--
 Cheers,
       Paul B.

1999\10\13@105650 by wzab

flavicon
picon face
On Wed, Oct 13, 1999 at 12:12:09AM -0400, Mike M wrote:
> Hey if u plug in a pic chip specifically a 16c84 right out the packaging un pr
ogrammed and wire it to +5v and mclr to +5v trough a 1k resistor and place a 4mh
z crystale with two caps on it going to ground should the crystal be oscillating
if u put a logic probe on it or no? cause my chip isnt.  Im new to pic's..
AFAIK the configuration bits are set to 3FFF in factory. It means that
oscillator selection bits are set to "11", and RC oscillator is selected.
So you can test the "fresh" PIC's in RC configuration, not XT.

--
                       Wojciech Zabolotny
                       http://www.ise.pw.edu.pl/~wzab

http://www.debian.org  Use Linux - save your data and time

1999\10\13@123916 by Harold M Hallikainen

picon face
On Wed, 13 Oct 1999 14:38:53 +1000 "Paul B. Webster VK2BZC"
<spam_OUTpaulbTakeThisOuTspamMIDCOAST.COM.AU> writes:
>Mike M wrote:
>
>> Hey if u plug in a pic chip specifically a 16c84 right out the
>> packaging un programmed and wire it to +5v and mclr to +5v trough a
>1k
>> resistor and place a 4mhz crystale with two caps on it going to
>ground
>> should the crystal be oscillating if u put a logic probe on it or
>no?
>
>  No.  Program it.
>--
>  Cheers,
>        Paul B.

       You probably, at a minimum, need to tell it what kind of
oscillator it's running...  Also, frequently, loading the osciallator
pins will kill the oscillator (or, maybe make it start...).


Harold

Harold Hallikainen
.....haroldKILLspamspam@spam@hallikainen.com
Hallikainen & Friends, Inc.
See the FCC Rules at http://hallikainen.com/FccRules and comments filed
in LPFM proceeding at http://hallikainen.com/lpfm


___________________________________________________________________
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: dl.http://www.juno.com/dynoget/tagj.

More... (looser matching)
- Last day of these posts
- In 1999 , 2000 only
- Today
- New search...