Page 1 of 1

why usb vbus pin voltage is 2.8v without load?

Posted: Thu Dec 01, 2016 10:46 am
by leo.ni
Hi,all. i use sama5d3-xplained board. i have a problem, why the usb device detect pin (PE9) vbus voltage is 2.8v? it is configured as pullup,what is the value of the pull-up resistor ?Thanks!