update from s-media regarding landscape flicker

Andy Green andy at openmoko.com
Tue Mar 25 14:51:51 CET 2008


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Somebody in the thread at some point said:

>> Yes, I guess the problem for this chip comes from the fact it still
>> issues a portrait raster to the LCM, so it has to compose each portrait
>> line from pixels that are totally disjoint in memory.
> 
> Just a thought: if the LCM could be configured to run in landscape
> mode, we could use 640x480 "portrait" instead, and avoid that issue.

It is a nice idea, but the data is pretty specific about tying pixel
counts to axes with min and max that don't fit the rotated concept, eg
in the software design guide p8.

> Perhaps something worth asking TPO for ? (Along with a real manual
> for the JBT6K74, of course ;-)

Already asked for, but JBT6K74 is not a TPO device it is a Toshiba ASIC.
 So I'm not holding my breath getting it passed on by TPO.

- -Andy
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