[gta02-core] LCM review
openmoko at underhand.org
Tue Jul 21 18:44:14 CEST 2009
Werner Almesberger wrote:
> Dave Ball wrote:
>> - C6008 is missing. This was added in GTA02, and is NC so it's
>> omission might be deliberate and I've not added it. Should we include
>> this or not?
> It changed from 47 pF to NC after it was found that it degraded the
> PCLK signal considerably, which was linked to flicker in landscape
Excellent - one less to worry about :-)
>> Because of how our components are laid out, the signals don't always go
>> through the same filter component used in the gta01/gta02 schematics,
>> but I think this is a sensible divergence from those schematics.
> I think we'll see how this goes when doing the layout. If necessary,
> we can always reshuffle signals that end up in inconvenient spots.
Yup - this got me thinking about optimising all the LCM signals to go
through the most convenient filter, then my head started hurting. So I
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