current focus / Removing PMU problem in future
andy at openmoko.com
Fri Jul 11 14:51:34 CEST 2008
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Somebody in the thread at some point said:
| Andy Green wrote:
|> We need to add a P-Channel MOSFET on at least AUTO controlled by MPU to
|> be able to remove the rail from its load.
| Yup, if we add some FETs around the PMU as well, then there's nothing
| we can't do. Kinda messy, though.
The optimal fix is a variant with limits that already match our needs.
If it ain't happening, adding P MOSFETs on the high power rails is a
workaround that eliminates the root cause and all downstream effects of
VB_SYS failure (something that "sticking a big cap on VB_SYS" does not
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