I wrote: > Now, on to strangling the Glamo ... Here we go: http://svn.openmoko.org/developers/werner/meas/chg/choke-glamo/out.ps
The next and for now final step is to enter CPU IDLE in wait_for_power instead of busy-looping and polling the PMU like crazy: http://svn.openmoko.org/developers/werner/meas/chg/cpu-idle/out.ps (Note: the directories with out.ps also contain the raw data, a more detailed description of the experiments, and sometimes other related material.) So the current drawn in wait_for_power is, when the LED is off: Baseline: 155mA [EMAIL PROTECTED]: 125mA Unused LDOs off: 85mA Halt Glamo: 70mA CPU IDLE: 45mA With 45mA we're comfortably in a zone where we can run from USB. GTA02v5 still isn't entirely happy, due to the high LED current, but GTA02v6 should be okay. I'll make a patch later. There's one remaining problem: why does my GTA02 shut down when enabling the charger while there's no battery ? I examined the PMU settings at various points (I've written a pretty-printer for PMU and other register dumps, http://svn.openmoko.org/developers/werner/greg/), and the only thing that hints at a problem is that INT4.lowsys is set after the sudden shutdown. So it seems that the all-important Vsys wants closer examination, to see if it's just unstable or if the source is indeed turned off. That'll be fun ... - Werner
