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Re: Problem with EB40A derived board, change in clockfrequency
- From: Jani Monoses <jani at iv dot ro>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Mon, 3 May 2004 11:31:03 +0300
- Subject: Re: [ECOS] Problem with EB40A derived board, change in clockfrequency
- References: <22309.1083573071@www2.gmx.net>
> Now, for some reason unbeknownst to me, the hardware has been modified
> such that the external master clock being fed to the microcontroller
> is now at 40 Mhz as opposed to the original 66Mhz.
> I need to know the sequence of changes to be made in the eCos
> repository, including the CDLs etc to ensure that eCos can work with
> the new clock and the serial diagnostics work at a specified baudrate
> (38400 would do).
>
> I seem to think that the following would need to be redefined:
I think defining CYGNUM_HAL_ARM_AT91_CLOCK_SPEED to 40000000 is
enough.
Jani
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