IRC #olimex 2020-05-21

[11:14:54] <diego71> jo0nas: also booting while powered from a usb-otg can be a problem without a battery, because uboot and kernel reconfigure the port during the boot, and you can be briefly disconnected from power
[11:16:14] <leon-anavi> hi
[11:34:48] <jo0nas> diego71: uhm, you need not convince _me_ that it is bad to use USB-OTG - I was confused as to the core physical laws of electricity but not the result: when powered from USB-OTG the voltage cannot be kept reliably high.
[11:35:33] <jo0nas> ...but thanks anyway for that extra detail of yet another detail concretely failing with USB-OTG
[11:36:16] <diego71> using a battery is almost safe, except if the board use constatly more current than what usb-otg use
[11:37:40] <diego71> I had some setup that use usb-otg & battery on lime2 and micro a20, and they were almost good. Except when you have some unsual load, and the battery is driened