hi,
thanks for suuggestion,i check my initlization & i nowhere found that i am writing one reserved bit.
My RTC initlization routine is as below.
CCR=0x13; /* Reset the clock ,clock from external osc,RTC enable*/
ILR=0x03; /* Clear the RTC Interrupt */
CCR=0x11; /* RTC reset changeed to 0 */
CIIR = 0x01; //interrupt on Second counter
Regards,
Pandurang S.
________________________________
From: lpc2000@yahoogroups.com on behalf of Gerrit de Waard
Sent: Thu 3/23/2006 6:20 PM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: RTC problem in 2136
Hello,
You can try the following:
@ RTC init, clear all RTC registers --> (write 0 to all)
than make sure, you do not write the 'reserved' bits, this can cause
something like that to happen.. I had sort of the same problem.. and
the earlier mentioned steps solved my problem!!
Good luck!
Gerrit de Waard
--- In lpc2000@yahoogroups.com, "Gordon Melby" <gm1529@...> wrote:
>
> I have had issues with 32 khz crystals when there are digital
signals in the
> area of the crystal. make sure you have ground plane protecting the
crystal
> pins
>
> Gordon
>
>
> -----Original Message-----
> From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On
Behalf Of
> Pandurang Shinde
> Sent: Wednesday, March 22, 2006 5:35 AM
> To: lpc2000@yahoogroups.com
> Subject: RE: [lpc2000] Re: RTC problem in 2136
>
>
> thanks for immediate reply.
> Yes i am using external watch crystal of 32 khz. I have also found
that i am
> not getting oscillation on that board(the board in which i am not
getting
> RTC updaed value ). But when i used same crystal on other board it(
crystal
> ) seems working,so crystal is fine.
> What are the possible reason that i am not getting oscillation with
working
> crystal
>
> Regards,
> Pandurang S.
>
> ________________________________
>
> From: lpc2000@yahoogroups.com on behalf of Guillermo Prandi
> Sent: Wed 3/22/2006 4:03 PM
> To: lpc2000@yahoogroups.com
> Subject: [lpc2000] Re: RTC problem in 2136
>
>
> --- In lpc2000@yahoogroups.com, "Pandurang Shinde" <pandurang@>
> wrote:
> >
> > Hi,
> > I am using LPC2136.I am facing some RTC related
problems
> in few boards. I am writing some value in RTC on power on but it is
> not incrementing.
> > This type of problem is not in all board but few of
> them.Some board work without any problem.
> > I also observed that when i use jlink for debug ,value
of
> RTC register(SEC,MIN etc) are incrementing ,but these increment are
> slow. When i come out of debug & send data on serial port ,i have
> getting 0 data continously.
> > I have also check VBAT voltage which found ok.
> > Please help me ,if any one can.
> >
> > Regards,
> > Pandurang S.
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
> Do you use an external crystal? Have you checked the oscilator pins
> for a 32 KHz wave?
>
> Guille
>
>
>
>
>
>
>
> SPONSORED LINKS
> Microcontrollers <http://groups.yahoo.com/gads?t=ms
> <http://groups.yahoo.com/gads?
t=ms&k=Microcontrollers&w1=Microcontrollers&w2
>
=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s
=95&.s
> ig=mfaAujKZXA2Z_vxre9sGnQ>
>
&k=Microcontrollers&w1=Microcontrollers&w2=Microprocessor&w3=Intel+mic
roproc
> essors&w4=Pic+microcontrollers&c=4&s=95&.sig=mfaAujKZXA2Z_vxre9sGnQ>
> Microprocessor <http://groups.yahoo.com/gads?t=ms
> <http://groups.yahoo.com/gads?
t=ms&k=Microprocessor&w1=Microcontrollers&w2=M
>
icroprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=9
5&.sig
> =9jjd2D3GOLIESVQssLmLsA>
>
&k=Microprocessor&w1=Microcontrollers&w2=Microprocessor&w3=Intel+micro
proces
> sors&w4=Pic+microcontrollers&c=4&s=95&.sig=9jjd2D3GOLIESVQssLmLsA>
> Intel microprocessors <http://groups.yahoo.com/gads?t=ms
> <http://groups.yahoo.com/gads?
t=ms&k=Intel+microprocessors&w1=Microcontrolle
>
rs&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&
c=4&s=
> 95&.sig=OMnZuqMZX95mgutt4B-tDw>
>
&k=Intel+microprocessors&w1=Microcontrollers&w2=Microprocessor&w3=Inte
l+micr
>
oprocessors&w4=Pic+microcontrollers&c=4&s=95&.sig=OMnZuqMZX95mgutt4B-
tDw>
>
> Pic microcontrollers <http://groups.yahoo.com/gads?t=ms
> <http://groups.yahoo.com/gads?
t=ms&k=Pic+microcontrollers&w1=Microcontroller
>
s&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c
=4&s=9
> 5&.sig=Malspbd0T4Rq3M4Q0nHrfw>
>
&k=Pic+microcontrollers&w1=Microcontrollers&w2=Microprocessor&w3=Intel
+micro
>
processors&w4=Pic+microcontrollers&c=4&s=95&.sig=Malspbd0T4Rq3M4Q0nHrf
w>
>
>
> ________________________________
>
> YAHOO! GROUPS LINKS
>
>
>
> * Visit your group "lpc2000
<http://groups.yahoo.com/group/lpc2000> "
> on the web.
>
> * To unsubscribe from this group, send an email to:
> lpc2000-unsubscribe@yahoogroups.com
> <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe>
>
> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service
> <http://docs.yahoo.com/info/terms/> .
>
>
> ________________________________
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> SPONSORED LINKS
> Microcontrollers
> <http://groups.yahoo.com/gads?
t=ms&k=Microcontrollers&w1=Microcontrollers&w2
>
=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s
=95&.s
> ig=mfaAujKZXA2Z_vxre9sGnQ> Microprocessor
> <http://groups.yahoo.com/gads?
t=ms&k=Microprocessor&w1=Microcontrollers&w2=M
>
icroprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=9
5&.sig
> =9jjd2D3GOLIESVQssLmLsA> Intel
> <http://groups.yahoo.com/gads?
t=ms&k=Intel+microprocessors&w1=Microcontrolle
>
rs&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&
c=4&s=
> 95&.sig=OMnZuqMZX95mgutt4B-tDw> microprocessors
> Pic
> <http://groups.yahoo.com/gads?
t=ms&k=Pic+microcontrollers&w1=Microcontroller
>
s&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c
=4&s=9
> 5&.sig=Malspbd0T4Rq3M4Q0nHrfw> microcontrollers
>
> _____
>
> YAHOO! GROUPS LINKS
>
>
>
> * Visit your group "lpc2000
<http://groups.yahoo.com/group/lpc2000> "
> on the web.
>
>
> * To unsubscribe from this group, send an email to:
> lpc2000-unsubscribe@yahoogroups.com
> <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe>
>
>
> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service
> <http://docs.yahoo.com/info/terms/> .
>
>
> _____
>
>
>
>
> [Non-text portions of this message have been removed]
>
SPONSORED LINKS
Microcontrollers <http://groups.yahoo.com/gads?t=ms&k=Microcontrollers&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=95&.sig=mfaAujKZXA2Z_vxre9sGnQ> Microprocessor <http://groups.yahoo.com/gads?t=ms&k=Microprocessor&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=95&.sig=9jjd2D3GOLIESVQssLmLsA> Intel microprocessors <http://groups.yahoo.com/gads?t=ms&k=Intel+microprocessors&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=95&.sig=OMnZuqMZX95mgutt4B-tDw>
Pic microcontrollers <http://groups.yahoo.com/gads?t=ms&k=Pic+microcontrollers&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&w4=Pic+microcontrollers&c=4&s=95&.sig=Malspbd0T4Rq3M4Q0nHrfw>
________________________________
YAHOO! GROUPS LINKS
* Visit your group "lpc2000 <http://groups.yahoo.com/group/lpc2000> " on the web.
* To unsubscribe from this group, send an email to:
lpc2000-unsubscribe@yahoogroups.com <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe>
* Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
________________________________
[Non-text portions of this message have been removed]Message
RE: [lpc2000] Re: RTC problem in 2136
2006-03-25 by Pandurang Shinde