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authorKevin Redon <kevredon@mail.tsaitgaist.info>2011-12-18 08:35:20 +0100
committerHarald Welte <laforge@gnumonks.org>2011-12-18 08:35:20 +0100
commit2a3d3624be53a3d172465829ea92c824825ea120 (patch)
treeee6854ad55eb56614467cba0ff3d9019a432402a /openpicc/tc_cdiv.dia
parentebf16b4ddf0dcbadf96aebdec3304f703917fdc7 (diff)
Make sure we don't forward power _and_ supply SIM power at the same time
The FPF2005 has no reverse voltage blocker, this is why the 3.3V from the LDO flows back into VCC_PHONE. It even damages the chip (so says the datasheet) I corrected the double power source problem by disabling the LDO (see patch), but still 1.8V does not work and 3.0-3.3V is used. I have to look for other reasons.
Diffstat (limited to 'openpicc/tc_cdiv.dia')
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personal git repositories of Harald Welte. Your mileage may vary