RE: [microblaze-uclinux] Clock frequency question

["Bret Ketchum" <bret.ketchum@xxxxxxxxxxxxxxxxxxx>]

John,

	This is a doctored up package from the mb-uclinux web site. Just
making sure my view of the world was real. Thanks.

	Bret

-----Original Message-----
From: owner-microblaze-uclinux@itee.uq.edu.au
[mailto:owner-microblaze-uclinux@itee.uq.edu.au] On Behalf Of John Williams
Sent: Tuesday, October 11, 2005 8:45 PM
To: microblaze-uclinux@itee.uq.edu.au
Subject: Re: [microblaze-uclinux] Clock frequency question

Hi Bret,

Bret Ketchum wrote:
> 	The constraints file (data/system.ucf) says the microblaze is
> running at 100MHz but the CORE_CLOCK_FREQ_HZ (Software Platform Settings)
> says 66.67MHz. Which is correct?

Is this in one of the packaged mb-uclinux platforms off the website, or
one that you have created?

Either way, these must match (and both be correct!).

With the current uClinux-auto tools, CORE_CLOCK_FREQ_HZ still needs to
be set manually, either in XPS or directly in the MSS file.  It is used
to calculate the timer interrupt frequency in the linux kernel.

Regards,

John
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