RE: [uCsimm] Exact clock value

From: Steven Merrifield (smerrifield@tecom.com.au)
Date: Tue Oct 02 2001 - 01:05:37 EDT


Hi,
 
Have a look in the Dragonball manual, pages 5-1 to 5-5, and also see
linux/arch/m68knommu/platform/68EZ328/ucsimm-head.S
 
You will see that the PLL frequency select register is loaded with 0x0123,
which gives a divider value of 506, giving a clock of 16.580608 MHz
 
steve
 
 

-----Original Message-----
From: Gonzalo Vásquez Sáez [mailto:gvasquez@vtr.net]
Sent: Tuesday, 2 October 2001 8:35
To: uclinux-dev@uclinux.org; ucsimm@uClinux.com
Subject: [uCsimm] Exact clock value

How can I know which is the exact value of the main system clock on my
ucsimm? I've heard there are several values around: 16.38MHz, 16.58MHz and
even 16.67MHz...I'd really appreciate to know up to very little hertz
involved in my clock, as to use in pseudo-exact external timer generation.
 
Regards,
 
Gonzalo Vasquez

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