Hi Ash,

Thank you for the info.

I look forward to using the Firestorm in the near future.


> From: ash@gumstix.com
> Date: Mon, 28 Nov 2011 20:38:45 -0800
> To: gumstix-users@lists.sourceforge.net
> Subject: Re: [Gumstix-users] Firestorm data sheets?
> Hi Danesh,
> On Mon, Nov 28, 2011 at 3:29 PM, Danesh Petigara <danesh102@hotmail.com> wrote:
> > Why do the "Firestorm" and "Waterstorm" specs state that the COMs support
> > clock speeds of up to 800MHz? I expected the DM3730 based COMs to run at
> > speeds of up to 1GHz. Can you please clarify?
> These processors support 1GHz and I've been able to run some at this
> speed. However, I've noticed some instabilities at 1GHz on 'some'
> chips hence we're recommending running at 800MHz at the moment.
> To the best of my knowledge, there are two issues possibly at play:
> 1. TI documentation suggests that 1GHz is best supported by the A3
> revision of the PMIC chip on earlier revision of the processor. This
> theoretically shouldn't affect the Storm series boards as they use a
> recent revision of the processor and we've worked with our suppliers
> to get A3 silicon on the PMIC for future builds of the Storm series.
> 2. Users on different COMs using these processors have reported bugs
> with the adaptive body biasing patches submitted by TI to the linux
> kernel. Once these patches are debugged and integrated into the
> kernel, all COMs should run at a stable fashion at 1GHz.
> Hopefully this answers your question. I'm certainly interested in
> success/failure reports of anyone running at 1GHz.
> -Ash
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