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Discussion Groups | Piclist | please help me with pic12f675 programming for pwm ,adc and led

A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.

Re: please help me with pic12f675 programming for pwm ,adc and led - Paul James E. - Feb 10 23:00:00 2004


Vaishnavi236,

Although I won't write the program for you, I will help and guide you
however I can. Let me know what you need to do first.

Regards,

Jim

> Hello ,
> I am doing a project using PIC MICROCONTROLLER . I
> have finished with the hardware part . I am finding difficulty in
> software part.
> I have to write programs for
> 1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR OFF TIME
> 2. ADC
> 3. LED DISPLAY FOR SHOWING THE BATTERY CONDITIONS DEPENDING ON
> THE PWM OUTPUT
> Battery conditons are :
> a. low charge condition when it is less than 10.8 v
> b. high charge condition when it is more than 14 .8v
>
> THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY LANGUAGE AND THEN
> SIMULATED BY MPLAB.
> PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM NOT WELL VERSED IN
> WRITNG PROGRAMS . please suggest any websites which I can refer to
> while writing these programs
>
> I have to submit the project this month end . please reply as soon as
> possible. >
> ------------------------ Yahoo! Groups Sponsor
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please help me with pic12f675 programming for pwm ,adc and led - vaishnavi236 - Feb 11 1:05:00 2004

Hello ,
I am doing a project using PIC MICROCONTROLLER . I
have finished with the hardware part . I am finding difficulty in
software part.
I have to write programs for
1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR OFF TIME
2. ADC
3. LED DISPLAY FOR SHOWING THE BATTERY CONDITIONS DEPENDING ON
THE PWM OUTPUT
Battery conditons are :
a. low charge condition when it is less than 10.8 v
b. high charge condition when it is more than 14 .8v

THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY LANGUAGE AND THEN
SIMULATED BY MPLAB.
PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM NOT WELL VERSED IN
WRITNG PROGRAMS . please suggest any websites which I can refer to
while writing these programs

I have to submit the project this month end . please reply as soon
as possible.




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Re: please help me with pic12f675 programming for pwm ,adc and led - Phil - Feb 11 3:10:00 2004

check here
http://www.geocities.com/doyourownwork123/learnonyourown.html

--- In , "vaishnavi236" <vaishnavi236@y...>
wrote:
> Hello ,
> I am doing a project using PIC MICROCONTROLLER . I
> have finished with the hardware part . I am finding difficulty in
> software part.
> I have to write programs for
> 1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR OFF TIME
> 2. ADC
> 3. LED DISPLAY FOR SHOWING THE BATTERY CONDITIONS DEPENDING ON
> THE PWM OUTPUT
> Battery conditons are :
> a. low charge condition when it is less than 10.8 v
> b. high charge condition when it is more than 14 .8v
>
> THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY LANGUAGE AND THEN
> SIMULATED BY MPLAB.
> PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM NOT WELL VERSED
IN
> WRITNG PROGRAMS . please suggest any websites which I can refer to
> while writing these programs
>
> I have to submit the project this month end . please reply as soon
> as possible.




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Re: Re: please help me with pic12f675 programming for pwm ,adc and led - Louis Goh - Feb 11 5:03:00 2004

Haha nice Phil i was going to say that!
--- Phil <> wrote:
---------------------------------
check here
http://www.geocities.com/doyourownwork123/learnonyourown.html

--- In , "vaishnavi236"
<vaishnavi236@y...>
wrote:
> Hello ,
> I am doing a project using PIC
MICROCONTROLLER . I
> have finished with the hardware part . I am finding
difficulty in
> software part.
> I have to write programs for
> 1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR
OFF TIME
> 2. ADC
> 3. LED DISPLAY FOR SHOWING THE BATTERY
CONDITIONS DEPENDING ON
> THE PWM OUTPUT
> Battery conditons are :
> a. low charge condition when it is less than
10.8 v
> b. high charge condition when it is more than
14 .8v
>
> THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY
LANGUAGE AND THEN
> SIMULATED BY MPLAB.
> PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM
NOT WELL VERSED
IN
> WRITNG PROGRAMS . please suggest any websites which
I can refer to
> while writing these programs
>
> I have to submit the project this month end . please
reply as soon
> as possible.
to unsubscribe, go to http://www.yahoogroups.com and
follow the instructions Yahoo! Groups Sponsor ADVERTISEMENT ---------------------------------
Yahoo! Groups Links

To __________________________________________________





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Re: please help me with pic12f675 programming for pwm ,adc and led - Dave Mucha - Feb 11 8:27:00 2004

--- In , "vaishnavi236" <vaishnavi236@y...>
wrote:
> Hello ,
> I am doing a project using PIC MICROCONTROLLER . I
> have finished with the hardware part . I am finding difficulty in
> software part.
> I have to write programs for
> 1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR OFF TIME
> 2. ADC
> 3. LED DISPLAY FOR SHOWING THE BATTERY CONDITIONS DEPENDING ON
> THE PWM OUTPUT
> Battery conditons are :
> a. low charge condition when it is less than 10.8 v
> b. high charge condition when it is more than 14 .8v
>
> THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY LANGUAGE AND THEN
> SIMULATED BY MPLAB.
> PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM NOT WELL VERSED
IN
> WRITNG PROGRAMS . please suggest any websites which I can refer to
> while writing these programs
>
> I have to submit the project this month end . please reply as soon
> as possible. Although there will be no one to do your project for you, and you
will probably not find what you want on the Internet (Professors are
funny in assigning projects for new chips) This might be of some help.

http://www.xs4all.nl/~smit/asm01001.htm

http://doorknob.t35.com/asm_tutorial.html

And of course the most inportant
http://www.microchip.com/download/lit/pline/picmicro/families/12f6xx/4
1190c.pdf

But I'm betting that your professor has already given you the tools
needed to do the project.

I bet next semestor it will be for the 12F683 using most of the 2k
memory. Just to be different.

Dave





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Re: please help me with pic12f675 programming for pwm ,adc and led - Patrick Reitelbach - Feb 11 8:52:00 2004

First get the data sheet. Read all of it and re-read the sections
dealing with the hardware features you want to use. Read until you
understand what is written. It is real tough to program the hardware
if you do not know how it works.

Break the project (any project) into small steps. With the aid of
the data sheet learn how to configure the GPIO to drive your led's.
Then learn how to configure/operate Timer0. Use the led's to show
its operation. Then how to configure/operate Timer1. Then link them
together and you have accomplished the PWM requirement. Then take on
the ADC module and you have the project completed.

MPLAB includes assembly code templates for most processor versions.
Use this to get your code moving off TDC. Use the template to learn
the MPLAB enviroment. Microchip has a lot of examples/application
notes to study as well.

Nobody is going to write the code for you. This project is meant to
be an educational element for you. Project management skills should
also be learned here, not just how to wire up a 675 and program a few
of its features. These PM skills will be useful in all future
projects big and small.

pr

--- In , "vaishnavi236" <vaishnavi236@y...>
wrote:
> Hello ,
> I am doing a project using PIC MICROCONTROLLER . I
> have finished with the hardware part . I am finding difficulty in
> software part.
> I have to write programs for
> 1. PWM WITH TIMER1 FOR ON TIME AND TIMER0 FOR OFF TIME
> 2. ADC
> 3. LED DISPLAY FOR SHOWING THE BATTERY CONDITIONS DEPENDING ON
> THE PWM OUTPUT
> Battery conditons are :
> a. low charge condition when it is less than 10.8 v
> b. high charge condition when it is more than 14 .8v
>
> THESE PROGRAMS ARE TO BE WRITTEN IN ASSEMBLY LANGUAGE AND THEN
> SIMULATED BY MPLAB.
> PLEASE GUIDE ME WRITING THESE PROGRAMS SINCE I AM NOT WELL VERSED
IN
> WRITNG PROGRAMS . please suggest any websites which I can refer to
> while writing these programs
>
> I have to submit the project this month end . please reply as soon
> as possible.




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Re: please help me with pic12f675 programming for pwm ,adc and led - Dave Mucha - Feb 11 10:54:00 2004

> This project is meant to
> be an educational element for you. Project management skills
should
> also be learned here, not just how to wire up a 675 and program a
few
> of its features. These PM skills will be useful in all future
> projects big and small.
>
> pr Excellent review !

What is missed or learned at this stage is a building block to fall
thru or build on later.

As for study, look up every word you do not understand ! Write down
every word you needed to look up in the event you have to come back
to them when you get another definition.

It has been theorized that one can understand a subject strictly and
only by COMPLETE understanding of the words. Not memorizing, not
stuff you have to think to remember. A comparison might be how you
print your name. (hopefully) you don't 'think' about how to form the
letters.

Dave





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Re: please help me with pic12f675 programming for pwm ,adc and led - Phil - Feb 11 12:58:00 2004


> But I'm betting that your professor has already given you the tools
> needed to do the project.

Yeah, he even said specifically which resources to use and what to do
with them. Its funny how even when handled all the building blocks
people want to be told what to do. I'm always amazed by much effort
people put in to avoid doing work.

> I bet next semestor it will be for the 12F683 using most of the 2k
> memory. Just to be different.

Gawd, I hope so, but its amazing how lazy some professors are in that
they recycle last year's assignment knowing full well there is
rampant copying going on.

By the way, over 25 years as a hiring manager, I've interviewed
literally thousands of engineer applicants, at least half being new
college grads. I ALWAYS ask them to explain their school projects
and ask lots of questions about why, how, what would they do
differently, etc. People that didn't figure it out for themselves
fail miserably at this and dont get a job offer. If you can't tell
me the details of your projects, I dont want you... So take the time
now to learn it. Figure it out on your own. Sure its ok to seek
help when you are stuck but you still have to learn it.



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