[gta02-core] Calypso's last dance

Dave Ball openmoko at underhand.org
Fri Jul 24 02:56:35 CEST 2009

Stefan Schmidt wrote:
> Sure. I would not even start to design for it without the docs. Maybe they also
> have other interfaces you could use. 

Sure, the proper design work will be done after getting a look at the 
docs, and working out if the device really will work for us.  From the 
public info and brief contact we've had with option it looks like there 
is a good chance of making it work (and in the current case etc.) - if 
we can reach an agreement on our openness needs.

There's quite a few GSM modules out there, but most of them seem to have 
the same show stopper for us - size.

A long way to go with this, but the calypso has it's own problems too.  
We're currently stalled on the modem front because we can't get TI's 
docs or reuse the existing design - and even if we could, the part is 
EOL and v. difficult to get hold of.  My feeling is that if we _can_ use 
the option it'll both work around the calypso problems, and give us a 
more interesting device (3g).

If we want to do 3G for whatever comes after -core, prototyping with 
this device now will give us some experience, and give some of the guys 
currently producing software a headstart in working out how to best use 
the extra functionality.

Calypso RIP (hopefully)


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