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'[PIC]: PWM code at Piclist.com? Where?'
2000\09\01@095041 by Graham North

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I am just starting a new project requiring a closed loop PWM controlled
motor, aswell as A2D conversion etc.

I read the reply posted by Chunhee and went looking at Piclist.com for PWM
code.  I could not find any!
I do not wish to offend anyone but I also find the site difficult to
navigate.

Could someone please give me a link as I have already wasted a lot of time.

Thanks

Graham North

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2000\09\01@161356 by Olin Lathrop

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> I am just starting a new project requiring a closed loop PWM controlled
> motor, aswell as A2D conversion etc.
>
> I read the reply posted by Chunhee and went looking at Piclist.com for PWM
> code.  I could not find any!
> I do not wish to offend anyone but I also find the site difficult to
> navigate.

I have done a project using a 16F877 that included a servo controller of an
electric motor driven by PWM.  It uses the A/Ds to measure inputs and
feedback signals and does floating point servo calculations.  It included a
serial link to an optional host computer for debugging or setting up the
control parameters.  The host can even perform the servo calculations for
easy experimenting.

If any of this could be useful to you and you'd like professional help,
please contact me privately:

Olin Lathrop
Cognivision, Inc
43 Buena Vista, Suite 307-B
Devens, MA  01432-6627
United States of America

(978) 772-3129
spam_OUTolinTakeThisOuTspamcognivis.com


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, .....olinKILLspamspam@spam@cognivis.com, http://www.cognivis.com

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2000\09\04@115854 by James Newton

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Amazing.

Click on "PIC FAQ". Click on "Routines / Code library / Input/Output" ,
Click on "Input/Output", Scroll down to "OSI 1 - Physical layer -
interfacing " and click on "PIC PWM".

Please tell me at what point along that path you got lost so I can make it
more clear. And how could it be made easier to navigate?

James Newton, PICList Admin #3
jamesnewtonspamKILLspampiclist.com
1-619-652-0593 phone
http://www.piclist.com


{Original Message removed}

2000\09\04@124909 by Alan B. Pearce

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>Click on "PIC FAQ". Click on "Routines / Code library / Input/Output" ,
>Click on "Input/Output", Scroll down to "OSI 1 - Physical layer -
>interfacing " and click on "PIC PWM".

>Please tell me at what point along that path you got lost so I can make it
>more clear. And how could it be made easier to navigate?

Hmm, to be fair to the original poster of the question, I would not have looked
under "OSI physical layer" for PWM code. I would thought the heading given above
was just OSI layer interfacing, and not all forms of interfacing.

Please do not get me wrong, I have not yet had occasion to seriously try and
find something in the FAQ. This is just my immediate thought on looking at the
above list without trying to follow the tree. I do appreciate that it is
difficult to satisfy everyone, while also satisfying the KISS principle.

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2000\09\04@134349 by James Newton

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I can appreciate your comments, and I understand that you feel that the use
of OSI layers to divide up the IO routines is not a good idea, but could you
take a look at the page at
http://www.piclist.com/../microchip/ios.htm
aka
www.piclist.com/techref/default.asp?url=microchip/ios.htm
and tell me what you would find clear. E.g. I'd like to get constructive
advice on how to do it rather than on how not to do it.

James Newton, PICList Admin #3
.....jamesnewtonKILLspamspam.....piclist.com
1-619-652-0593 phone
http://www.piclist.com


{Original Message removed}

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