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'Generating PWM -Code request'
1998\04\28@021057 by Morgan Olsson

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At 10:42 1998-04-27 -0700, you wrote:
...
>If speed really is your concern, then why not go for the ultimate:
>single-cycle resolution PWM. This can give you a maximum frequency
...
>I wrote one this weekend that I can e-mail to those who want it.
>Salient features are: 3-bytes of RAM, 64-bytes of ROM, and 14 free
>cycles out of the 32 available for other things.
>
>Scott
>
Yess please 8)
Thank you
/Morgan

/  Morgan Olsson, MORGANS REGLERTEKNIK, SE-277 35 KIVIK, Sweden \
\  spam_OUTmrtTakeThisOuTspaminame.com, ph: +46 (0)414 70741; fax +46 (0)414 70331    /

1998\04\28@071252 by Philippe

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You will find PWM generation source file for PIC16C84 in UMPS
example directory. PWM generation is based on interrupt with TIMER
and can be changed "on the fly" by the main program.

UMPS demo available at:

       http://www.sistudio.com/umps

Regards,
       Philippe.

 +--------------------------------------------------------+
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1998\04\28@094522 by Scott Dattalo

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On Tue, 28 Apr 1998, Philippe wrote:
>
> You will find PWM generation source file for PIC16C84 in UMPS
> example directory. PWM generation is based on interrupt with TIMER
> and can be changed "on the fly" by the main program.

There's also a MicroChip appnote that's similar (I haven't looked
at your's yet). The only limitation is that interrupts are NEEDED.
The routine that I wrote doesn't need interrupts and thus is suitable
for the C5x family. Its (temporary) downfall is that it is difficult
to dynamically modify the pulse width...

Scott

1998\04\28@113328 by Mark S.

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What example directory??? Couldn't find it.

At 01:02 PM 4/28/98 +0200, you wrote:
{Quote hidden}

1998\04\28@115618 by Philippe

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At 08:23 28/04/98 -0700, you wrote:
>What example directory??? Couldn't find it.

Project file:
       C:\UMPSDEMO\EXAMPLES\PIC16C84\PWM84.PRJ

Assembler file
       C:\UMPSDEMO\EXAMPLES\PIC16C84\PWM84.ASM


>At 01:02 PM 4/28/98 +0200, you wrote:
>>You will find PWM generation source file for PIC16C84 in UMPS
>>example directory. PWM generation is based on interrupt with TIMER
>>and can be changed "on the fly" by the main program.
>>
>>UMPS demo available at:
>>
>>        http://www.sistudio.com/umps


Regards,
       Philippe.

 +--------------------------------------------------------+
 |  Virtual Micro Design                                  |
 |  Technopole Izarbel,                                   |
 |  64210 BIDART                                          |
 |  FRANCE                                                |
 |                                                        |
 |  Phone: ++33 559.438.458   Fax: ++33 559.438.401       |
 |                                                        |
 | E-Mail: .....p.techerKILLspamspam.....idls.izarbel.tm.fr                    |
 | URL:    http://www.sistudio.com/umps                   |
 +--------------------------------------------------------+

1998\04\28@151804 by Bob Blick

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Hi Philippe,

I downloaded the demo, version 1.72C, but the only pic directories and
demos are for 16c54 and 16c57.

-Bob

On Tue, 28 Apr 1998, Philippe wrote:

> At 08:23 28/04/98 -0700, you wrote:
> >What example directory??? Couldn't find it.
>
> Project file:
>         C:\UMPSDEMO\EXAMPLES\PIC16C84\PWM84.PRJ
>
> Assembler file
>         C:\UMPSDEMO\EXAMPLES\PIC16C84\PWM84.ASM

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