[gta02-core] Modem schematic / RF help needed

Werner Almesberger werner at openmoko.org
Mon Sep 14 02:22:48 CEST 2009

Rask Ingemann Lambertsen wrote:
>    I don't know. CFUN=2 is not described in much detail in either the AT
> command reference or the software user guide. For example, is power saving
> enabled with CFUN=2? CFUN=2 won't be much fun (no pun intended) if it draws
> between 22 mA (CFUN=4) and 23,9 mA (CFUN=1).

This seems very likely. However, there's nothing to suggest that
TX_DISAB will be any better. I'll ask Telit.

>    Well, why not have a kill switch?

You mean a case redesign ? :) If you mean a software kill switch,
why bother ? We control the modem via the serial interface. In case
that communication breaks down, then we could always shut down the
(then useless) modem entirely, to prevent that malfunction to cause
even more problems.

- Werner

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