[gta02-core] PMU review
rehar at saweb.de
Fri Jul 31 05:53:53 CEST 2009
Finally, I found some time to do the PMU review.
So far, the PMU sheet looks very nice. I didn't really find much to
complain about, just a few things.
In the KEEPACT line there supposed to be a test point TP1703. Although
with ecn0007 this test point might gets removed as well.
In the gta02 schematic BAT_ID on the battery connector is an output and
not an input as we defined it. However I checked the smart battery
circuit  and there BAT_ID is connected to the HDQ port of the coulomb
counter which is a bidi communication port . If we stick to the same
battery pack and do not plan on replacing it, it does not make any sense
to keep the possibility of connecting BAT_ID to the BATTEMP port of the
PMU controller (which is an analog input). Only if we plan on getting a
more simple battery pack with ID or TEMP resistor this connection would
So we could get rid of R1769 (NC) to save some space on the board for
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