Searching \ for '[PIC]: 16F628' 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: '16F628'.

Exact match. Not showing close matches.
PICList Thread
'[PIC]: 16F628'
2001\05\30@144544 by uter van ooijen & floortje hanneman

picon face
The 16f628 seems to be THE 16x84 killer: cheaper, more memory, a UART, etc.
It is even possible to free the OSC and MCLR pins and use these as I/O. But
that raises a question: when MCLR is configured as I/O, and the program does
something with this pin (for instance pull it low), how can I get the chip
in (high-voltage) programming mode? The ICSP guide does not address this
question. I do not know another PIC that is both flash and has an MCLR pin
that can be configured as I/O, so this issue might be specific to this chip.
Has anyone expecrience with this chip and a self-build programmer?

Wouter

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email spam_OUTlistservTakeThisOuTspammitvma.mit.edu with SET PICList DIGEST in the body


2001\05\30@145332 by Bob Ammerman

picon face
When MCLR is used as an I/O it can only be programmed as an input.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

{Original Message removed}

2001\05\30@145536 by Spehro Pefhany

picon face
At 08:40 PM 5/30/01 +0200, you wrote:
>The 16f628 seems to be THE 16x84 killer: cheaper, more memory, a UART, etc.
>It is even possible to free the OSC and MCLR pins and use these as I/O. But
>that raises a question: when MCLR is configured as I/O, and the program does
>something with this pin (for instance pull it low), how can I get the chip
>in (high-voltage) programming mode? The ICSP guide does not address this
>question. I do not know another PIC that is both flash and has an MCLR pin
>that can be configured as I/O, so this issue might be specific to this chip.

Simple, RA5/~MCLR/THV can only be used as a ST input, see the data sheet for
details.

Best regards,
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Spehro Pefhany --"it's the network..."            "The Journey is the reward"
.....speffKILLspamspam@spam@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Contributions invited->The AVR-gcc FAQ is at: http://www.bluecollarlinux.com
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listservspamKILLspammitvma.mit.edu with SET PICList DIGEST in the body


2001\05\30@152423 by uter van ooijen & floortje hanneman

picon face
> When MCLR is used as an I/O it can only be programmed as an input.

So simple but I totally missed that. Praise the piclist for a quick answer
to most sane questions. (And possibly even quicker answers to insane
questions.)

Wouter

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email .....listservKILLspamspam.....mitvma.mit.edu with SET PICList DIGEST in the body


2001\05\31@015447 by Dale Botkin

flavicon
face
On Wed, 30 May 2001, Spehro Pefhany wrote:

> At 08:40 PM 5/30/01 +0200, you wrote:
> >The 16f628 seems to be THE 16x84 killer: cheaper, more memory, a UART, etc.
> >It is even possible to free the OSC and MCLR pins and use these as I/O. But
> >that raises a question: when MCLR is configured as I/O, and the program does
> >something with this pin (for instance pull it low), how can I get the chip
> >in (high-voltage) programming mode? The ICSP guide does not address this
> >question. I do not know another PIC that is both flash and has an MCLR pin
> >that can be configured as I/O, so this issue might be specific to this chip.
>
> Simple, RA5/~MCLR/THV can only be used as a ST input, see the data sheet for
> details.

That's what it says...  and then they proceed to show a block diagram of
the RA5/MCLR/THV pin that clearly shows it as a bidirectional I/O pin.
Oops!

Dale
--
A train stops at a train station.  A bus stops at a bus station.
On my desk I have a workstation...

--
http://www.piclist.com hint: To leave the PICList
EraseMEpiclist-unsubscribe-requestspam_OUTspamTakeThisOuTmitvma.mit.edu


2001\05\31@040538 by Mias Van Vuuren

flavicon
face
I have also recently come across this cute little chip. Could anyone just
give me an idea how the configuration settings work i.e. watchdog timer,
xtal oscilator etc.

Thanks

Mias
*
Mias van Vuuren
e-mail : vanvuumspamspam_OUTvodacom.co.za <@spam@vanvuumKILLspamspamvodacom.co.za>



       {Original Message removed}


'[PIC]: 16F628'
2001\06\05@102658 by James Newton
face picon face
Behold the power of 2000+ excellent minds!

<GRIN>

James Newton (PICList Admin #3) KILLspamjamesnewtonKILLspamspampiclist.com 1-619-652-0593

wouter van ooijen & floortje hanneman wrote on 01-5-30 12:29:

> When MCLR is used as an I/O it can only be programmed as an input.

So simple but I totally missed that. Praise the piclist for a quick answer to most sane questions. (And possibly even quicker answers to insane questions.)

Wouter

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservTakeThisOuTspammitvma.mit.edu with SET PICList DIGEST in the body

--
http://www.piclist.com hint: To leave the PICList
spamBeGonepiclist-unsubscribe-requestspamBeGonespammitvma.mit.edu


More... (looser matching)
- Last day of these posts
- In 2001 , 2002 only
- Today
- New search...