STM32F3 - USB charger or Host

boaz · ‎2014-10-05

Posted on October 05, 2014 at 14:47

I have a battery-powered device which may connect to a USB host or a charger.

How can I tell if the device is currently connected to a charger or a Host in Suspend mode?

Thanks,

Boaz

#stm32 #usb

chen · ‎2014-10-06

Posted on October 06, 2014 at 10:07

Hi

Most chargers do not have a micro controller which will initiate USB comms.

So, if you get power and there is no USB traffic, then it is likely to be a dumb charger.