Reply by "joris.mushrooms"●August 3, 20092009-08-03
Thx everybody for help.
rtc works well, im starting pwm part.
--- In l..., Daniel Widyanto wrote: >
>
> Hi,
>
> PWMs and timers are not linked.
>
> They are both based on timer/counter peripheral, but each PWMs and Timers have
their own timer / counter. So basically, you can run PWM independently and use
the timer for other purpose.
>
> Of course, the timer can be used to generate PWM as well (check the EMR
register manual).
>
> See
http://www.standardics.nxp.com/support/documents/microcontrollers/zip/code.bundle.lpc23xx.lpc24xx.uvision.zip
>
> for a sample. It's based on LPC23xx, but still compatible with
LPC24xx.
>
> -daniel
>
> --- On Tue, 7/28/09, Miguel Angel wrote:
>
> > From: Miguel Angel
> > Subject: Re: [lpc2000] PWM VS TIMERS
> > To: l...
> > Date: Tuesday, July 28, 2009, 12:37 PM
> > At least for LPC214x / LPC213x the
> > counters used in PWM are
> > independent from timers.
> >
> > In the other hand...the timers are shared for the
> > capture/compare ports.
> >
> > 2009/7/28 joris.mushrooms :
> > >
> > >
> > > Hello everybody,
> > >
> > > I'm quite a newbie in ARM programming (even if i met
> > this in the past) and
> > > i have a question about PWM implementations.
> > >
> > > I'm planning to use a lpc2460 and especially PWMs and
> > timers. Are the 2
> > > fonctions linked? can i use all PWM channels and still
> > have my timers free?
> > > i've read the manual again again and still, i dont
> > find the answer.
> > >
> > > also, does anyone got a sample program for pwm and/or
> > timer use? I could
> > > train myself and base my program on it.
> > >
> > > thanks in advance !
> > >
> > > ps:if its not clear enough, i can explain more.
> > >
> > > joris
> > --
> > Miguel Angel Ajo Pelayo
> > http://www.nbee.es
> > +34 91 120 1798
> > +34 636 52 25 69
> > skype: ajoajoajo
>
They are both based on timer/counter peripheral, but each PWMs and Timers have
their own timer / counter. So basically, you can run PWM independently and use
the timer for other purpose.
Of course, the timer can be used to generate PWM as well (check the EMR register
manual).
for a sample. It's based on LPC23xx, but still compatible with LPC24xx.
-daniel
--- On Tue, 7/28/09, Miguel Angel wrote:
> From: Miguel Angel
> Subject: Re: [lpc2000] PWM VS TIMERS
> To: l...
> Date: Tuesday, July 28, 2009, 12:37 PM
> At least for LPC214x / LPC213x the
> counters used in PWM are
> independent from timers.
>
> In the other hand...the timers are shared for the
> capture/compare ports.
>
> 2009/7/28 joris.mushrooms :
> >
> >
> > Hello everybody,
> >
> > I'm quite a newbie in ARM programming (even if i met
> this in the past) and
> > i have a question about PWM implementations.
> >
> > I'm planning to use a lpc2460 and especially PWMs and
> timers. Are the 2
> > fonctions linked? can i use all PWM channels and still
> have my timers free?
> > i've read the manual again again and still, i dont
> find the answer.
> >
> > also, does anyone got a sample program for pwm and/or
> timer use? I could
> > train myself and base my program on it.
> >
> > thanks in advance !
> >
> > ps:if its not clear enough, i can explain more.
> >
> > joris
> --
> Miguel Angel Ajo Pelayo
> http://www.nbee.es
> +34 91 120 1798
> +34 636 52 25 69
> skype: ajoajoajo
Reply by Jean-Jacques Dauchot●July 28, 20092009-07-28
Well they do not reply
_____
From: l... [mailto:l...] On Behalf Of
joris.mushrooms
Sent: 28 July 2009 15:11
To: l...
Subject: [lpc2000] lpc 24xx pwm example needed
Thanks for quick answer.
That's what i thought. gonna write a small prog using the 4 timers and
the
pwm, with different frequencies, to be sure.
Does somebody got an example for PWM? i allready wrote the timer test prog.
thanks again Miguel.
--- In lpc2000@yahoogroups .com, Miguel
Angel wrote: >
> At least for LPC214x / LPC213x the counters used in PWM are
> independent from timers.
>
> In the other hand...the timers are shared for the capture/compare ports.
>
> 2009/7/28 joris.mushrooms :
> >
> >
> > Hello everybody,
> >
> > I'm quite a newbie in ARM programming (even if i met this in the
past) and > > i have a question about PWM implementations.
> >
> > I'm planning to use a lpc2460 and especially PWMs and timers. Are the
2
> > fonctions linked? can i use all PWM channels and still have my timers free? > > i've read the manual again again and still, i
dont find the answer.
> >
> > also, does anyone got a sample program for pwm and/or timer use? I could
> > train myself and base my program on it.
> >
> > thanks in advance !
> >
> > ps:if its not clear enough, i can explain more.
> >
> > joris
> >
> >
>
>
>
> --
> Miguel Angel Ajo Pelayo
> http://www.nbee. es
> +34 91 120 1798
> +34 636 52 25 69
> skype: ajoajoajo
>
Reply by "joris.mushrooms"●July 28, 20092009-07-28
Thanks for quick answer.
That's what i thought. gonna write a small prog using the 4 timers and the
pwm, with different frequencies, to be sure.
Does somebody got an example for PWM? i allready wrote the timer test prog.
thanks again Miguel.
--- In l..., Miguel Angel wrote: >
> At least for LPC214x / LPC213x the counters used in PWM are
> independent from timers.
>
> In the other hand...the timers are shared for the capture/compare ports.
>
> 2009/7/28 joris.mushrooms :
> >
> >
> > Hello everybody,
> >
> > I'm quite a newbie in ARM programming (even if i met this in the
past) and
> > i have a question about PWM implementations.
> >
> > I'm planning to use a lpc2460 and especially PWMs and timers. Are the
2
> > fonctions linked? can i use all PWM channels and still have my timers
free?
> > i've read the manual again again and still, i dont find the answer.
> >
> > also, does anyone got a sample program for pwm and/or timer use? I could
> > train myself and base my program on it.
> >
> > thanks in advance !
> >
> > ps:if its not clear enough, i can explain more.
> >
> > joris
> >
> >
>
>
>
> --
> Miguel Angel Ajo Pelayo
> http://www.nbee.es
> +34 91 120 1798
> +34 636 52 25 69
> skype: ajoajoajo
>
Reply by Miguel Angel●July 28, 20092009-07-28
At least for LPC214x / LPC213x the counters used in PWM are
independent from timers.
In the other hand...the timers are shared for the capture/compare ports.
2009/7/28 joris.mushrooms : > Hello everybody,
>
> I'm quite a newbie in ARM programming (even if i met this in the past)
and
> i have a question about PWM implementations.
>
> I'm planning to use a lpc2460 and especially PWMs and timers. Are the
2
> fonctions linked? can i use all PWM channels and still have my timers free?
> i've read the manual again again and still, i dont find the answer.
>
> also, does anyone got a sample program for pwm and/or timer use? I could
> train myself and base my program on it.
>
> thanks in advance !
>
> ps:if its not clear enough, i can explain more.
>
> joris
>
>
--
Miguel Angel Ajo Pelayo http://www.nbee.es
+34 91 120 1798
+34 636 52 25 69
skype: ajoajoajo
Reply by "joris.mushrooms"●July 28, 20092009-07-28
Hello everybody,
I'm quite a newbie in ARM programming (even if i met this in the past)
and i have a question about PWM implementations.
I'm planning to use a lpc2460 and especially PWMs and timers. Are the 2
fonctions linked? can i use all PWM channels and still have my timers free?
i've read the manual again again and still, i dont find the answer.
also, does anyone got a sample program for pwm and/or timer use? I could train
myself and base my program on it.
