SuperPro 12mhz XTAL Registers.

Questions on other types of hardware and getting it talking to the ARM CPU
FIREWALL
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Joined: Thu Nov 08, 2012 6:31 pm

SuperPro 12mhz XTAL Registers.

Postby FIREWALL » Sat Nov 23, 2013 5:39 pm

I finally got around to adding a 12mhz XTAL and load caps to one of my Super-Pros. Can you tell me the proper register values I have to set to run the SuperPro at 100mhz using the 12mhz Xtal I added? I am programming in C and I am looking at system_LPC175x6x.c but I am not sure what to change.

-Dan

basicchip
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Location: Lake Tahoe, CA
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Re: SuperPro 12mhz XTAL Registers.

Postby basicchip » Sat Nov 23, 2013 11:00 pm

The clocks are setup in the SystemInit routine in each of the system_LPCxxxx.c file (system_LPC175x6x.c for the SuperPRO)

You need to enable the main oscillator, then set the PLL to multiply by the desired amount, the User Manual describes the settings.

FIREWALL
Posts: 15
Joined: Thu Nov 08, 2012 6:31 pm

Re: SuperPro 12mhz XTAL Registers.

Postby FIREWALL » Mon Nov 25, 2013 8:02 pm

Thanks! I got my SuperPro switched over to the XTAL now.

-Dan


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