> If we can confirm that the LDOs handle overcurrent gracefully, then I > think the reordering of LDOs looks like the most promising choice. > E.g., swap LDO2 (CODEC_3V3, 50 mA, off in Standby) and LDO4 (BT_3V2, > 150 mA, 2.8V in Standby). Last monday I accidentally tried what happens when trying to boot with IO_3V3 shorted to GND (caused by a bad solder joint at the aux switch).
I could observe two possible behaviours before finding my mistake: a) Qi booted, loaded the kernel and after some time I got a kernel panic (AUX- LED flashing). Then I removed the battery. The screen backlight did not turn on. b) Qi boots, then nothing happens. Probably the PMU turned everything off. I did not connect the serial console to see what happens, but my scope showed some activity on the serial lines. > If they can't handle overcurrent, then we'd probably need an external > LDO with switch. I think they probably can until the device becomes too hot and turns off everything. Christoph _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
