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pclk speed

pclk speed

2005-04-29 by jase_ko

hey guys,

how would i find out/set the speed of the pclk on a philips lpc2129 
with keil tools?

thanks

Jason

Re: [lpc2000] pclk speed

2005-04-29 by Sridhar gadda

set VIBDIV register 

jase_ko <jase.ko@...> wrote:hey guys,

how would i find out/set the speed of the pclk on a philips lpc2129 
with keil tools?

thanks

Jason





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RE: [lpc2000] pclk speed

2005-04-29 by Matthias Hertel

This is configured in the startup.s. You can read the current peripheral
clock in the debugger (simulation or JTAG) under Peripherals->System Control
Block->VPB Divider.
 
 
 
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Subject: Re: [lpc2000] pclk speed


set VIBDIV register 

jase_ko <jase.ko@...> wrote:hey guys,

how would i find out/set the speed of the pclk on a philips lpc2129 
with keil tools?

thanks

Jason





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Re: [lpc2000] pclk speed

2005-04-29 by Robert Adsett

At 04:08 AM 4/29/05 -0700, Sridhar gadda wrote:
>set VIBDIV register
>
>jase_ko <jase.ko@...> wrote:hey guys,
>
>how would i find out/set the speed of the pclk on a philips lpc2129
>with keil tools?

The crystal speed and pll setting are also involved.  You can take a look 
at the newlib-lpc support library ( http://www.aeolusdevelopment.com ) for 
some examples that show the various values interact and give a resulting 
clock.  It's not Keil but it is fairly straightforward C.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
they legal, genetic, or physical.  If you don't believe me, try to chew a 
radio signal. "  -- Kelvin Throop, III
http://www.aeolusdevelopment.com/

Re: pclk speed

2005-04-29 by Richard

The PLL calculator app in the files section may help.

Richard

 --- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 04:08 AM 4/29/05 -0700, Sridhar gadda wrote:
> >set VIBDIV register
> >
> >jase_ko <jase.ko@g...> wrote:hey guys,
> >
> >how would i find out/set the speed of the pclk on a philips lpc2129
> >with keil tools?
> 
> The crystal speed and pll setting are also involved.  You can take a
look 
> at the newlib-lpc support library ( http://www.aeolusdevelopment.com
) for 
> some examples that show the various values interact and give a
resulting 
> clock.  It's not Keil but it is fairly straightforward C.
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always
restrictions,   be 
> they legal, genetic, or physical.  If you don't believe me, try to
chew a 
> radio signal. "  -- Kelvin Throop, III
> http://www.aeolusdevelopment.com/

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