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PICList Thread
'16 bit serial link'
2000\03\08@114904 by Mike Ringenberger

picon face
I'm an electronics nut but a programming M O R O N.
I know the basics but that's about it.

Here's what I'm trying to accomplish and would really
appreciate any help.

I've seen for example, code that will allow a pic to
transfer serial asynchronous data with both transmit
and receive ability. One example is the RCV232.src
and the XMIT232.src listings that are in the Parallax
applications book. Can this code be changed to
allow a 16 bit situation (18, with stop and start) and
then be burnt into a pic with more I/O lines?

Or has anyone seen pre-exsisting code somewhere that
will do this? I'm trying to come up with a ONE CHIP
solution to simply transfer 16 bits of data over
RS-232.

I also have a second question.

What is the attitude with the piclist if I were to
offer compensation to others for programming
assistance? Is this frowned upon... or not allowed?

Thanks for any help.


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2000\03\08@123930 by Andrew Kunz

flavicon
face
Mike,

Just change the bit count from 8 to 16, and shift two registers instead of 1.

Or, just call the routine twice - that's the way you keep it compatible with
standard UARTs.

As for paying, many of us here do this for a living and are always looking for a
new account.

Andy









Mike Ringenberger <spam_OUTmringenTakeThisOuTspamYAHOO.COM> on 03/08/2000 11:34:54 AM

Please respond to pic microcontroller discussion list <.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU>








To:      PICLISTspamKILLspamMITVMA.MIT.EDU

cc:      (bcc: Andrew Kunz/TDI_NOTES)



Subject: 16 bit serial link








I'm an electronics nut but a programming M O R O N.
I know the basics but that's about it.

Here's what I'm trying to accomplish and would really
appreciate any help.

I've seen for example, code that will allow a pic to
transfer serial asynchronous data with both transmit
and receive ability. One example is the RCV232.src
and the XMIT232.src listings that are in the Parallax
applications book. Can this code be changed to
allow a 16 bit situation (18, with stop and start) and
then be burnt into a pic with more I/O lines?

Or has anyone seen pre-exsisting code somewhere that
will do this? I'm trying to come up with a ONE CHIP
solution to simply transfer 16 bits of data over
RS-232.

I also have a second question.

What is the attitude with the piclist if I were to
offer compensation to others for programming
assistance? Is this frowned upon... or not allowed?

Thanks for any help.


__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com

2000\03\08@132958 by Tom Handley

picon face
  Mike, first, why? Just send two Bytes. You are limited to 8-Bits so you
can only shift-out 8 Bits at a time. You could modify the example to load
"xmt_byte" with high and low Bytes between the Start and Stop Bits but you
are still sending two Bytes and you are not compatible with the standard.
You would have to write your own routines at the other end. I can't see any
gain here unless you are talking to an extremely unusual device in which
case the person that designed it should be dragged out back and shot ;-)

>What is the attitude with the piclist if I were to
>offer compensation to others for programming
>assistance? Is this frowned upon... or not allowed?

  Well, I could use a cold beer, haircut, clean air, and a shoe shine.
Also, 20 acres with two Quarter horses, and an acrobatic-qualified aircraft
that can pull at least 5Gs inverted, but hey, that's just me ;-)

  - Tom

At 08:34 AM 3/8/00 -0800, Mike Ringenberger wrote:
{Quote hidden}

------------------------------------------------------------------------
Tom Handley
New Age Communications
Since '75 before "New Age" and no one around here is waiting for UFOs ;-)

2000\03\08@165928 by jamesnewton

face picon face
<BLOCKQUOTE Author="Mike Ringenberger">
What is the attitude with the piclist if I were to
offer compensation to others for programming
assistance? Is this frowned upon... or not allowed?
</BLOCKQUOTE>

The high standards and moral uprightness of the PICList will not be
compromised!

(send the check to James Newton, 1452 View Pointe Ave, Escondido, CA 92027)

Seriously, paying PICList members for programming or tutorial services is
perfectly ok.

JUST DO NOT:
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are directly about the Microchip PIC microcontroller (or its clones). BTY:
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AVR and 8051 are not PIC clones. Its so easy to just type [OT], practice it,
I know you can do it.
- Post cracks.
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>From the FAQ site:

Q: Can I advertise my product on the PICList?

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THE FINAL WORD
:{ Listen: The final judgment of what is appropriate is left in the hands of
the PICList administrators, if *they* feel a post is inappropriate, they
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---
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.....jamesnewtonKILLspamspam.....piclist.com 1-619-652-0593
PIC/PICList FAQ: http://www.piclist.com or .org

-----Original Message-----
From: pic microcontroller discussion list
[EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU]On Behalf Of Mike Ringenberger
Sent: Wednesday, March 08, 2000 08:35
To: PICLISTspamspam_OUTMITVMA.MIT.EDU
Subject: 16 bit serial link

2000\03\09@113819 by Mike Ringenberger

picon face
--- Andrew Kunz <@spam@akunzKILLspamspamTDIPOWER.COM> wrote:
> Mike,
>
> Just change the bit count from 8 to 16, and shift
> two registers instead of 1.
>
> Or, just call the routine twice - that's the way you
> keep it compatible with
> standard UARTs.
>
> As for paying, many of us here do this for a living
> and are always looking for a
> new account.
>
> Andy
>

>
>
Thanks Andy, I'm looking at this Parallax code for
RCV232 and XMIT232 to do that and I will have some
stupid questions for the Piclist.

The basic things I've done have been with Microchip
language, not Parallax, so I'm not following some
things.

I'm going to start at the beginning with RCV232 and
work my way down the code with all of you.

Questions to follow about RCV232.SRC later.  Thanks!

Time for lunch.
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