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Lpc2000

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Re: [lpc2000] Reading the frequency

2005-06-08 by Robert Adsett

At 08:23 AM 6/8/05 +0000, soren_t_hansen wrote:
>Is it possible to read a register or read a pin to see what frequency
>the processor is running at? I would like to make sure, that my
>LPC2132 is running at the maximum 60 Mhz.

Without an independent clock source it would be impossible to tell how fast 
the processor is running.

>I have a Xtal of 12 Mhz and have set the PPL to 5, thus giving 60 Mhz,
>but how can I make sure ....?

Check your baud rate if using a UART.  Program a timer or PWM to produce a 
specific pulse width.

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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