CLKOUT sourcing

Questions on other types of hardware and getting it talking to the ARM CPU
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YahooArchive
Posts: 1462
Joined: Fri Oct 19, 2012 5:11 am

CLKOUT sourcing

Post by YahooArchive »

I am using a Coridium SuperPro Pro+. I am a new user to microprocessors but
have used several microcontrollers. I need to get the clock signal out from the
Coridium board to another device. I do not see a pin I can access for this.
Does anybody know how I can tie into the clock oscillator?



YahooArchive
Posts: 1462
Joined: Fri Oct 19, 2012 5:11 am

Re: CLKOUT sourcing

Post by YahooArchive »

The CLKOUT pin is not available on the 80 pin LPC175x part.

You could use one of the PWM channels to produce a clock, by changing the PCLK
divider and minimum pre-scaler, up to 25 MHz is available.

Also the base board SuperPRO and PROplus use the internal 1% IRC. You can add
an external crystal and bias caps to get more accuracy.

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