LPC1787 VBUS pin - self powered

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by SimonThome on Mon Oct 13 07:26:56 MST 2014
I am using the LPC1787 in a self-powered USB device. I am unable to get the LPC1787 to detect the host (and drive the USB_CONN2 pin) when the VBUS pin is driven high from the bus. If I disable VBUS in the IOCON register, then everything works fine. Problem is this is only acceptable for a bus powered application.

Is this a know problem on the 1787?