USB module communication on HITEX LPC4350 evaluation board

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 18, 2016 by lpcware
Content originally posted in LPCWare by Sooraj on Tue Jun 14 20:54:23 MST 2016

In the Hitex lpc4350 evaluation board, I have noticed that USB 0 section of LPC controller has signals like USB0_VBUS, USB0_RREF, USB0_VDDA_3V3_DRIVER, USB0_VDDA3V3, USB0_VSSA_TERM, USB0_VSSA_REF , while USB1 doesnt have these extra signals.

What will be the effect if  these signals are absent for USB0 i.e. I dont connect these pins at all, leave them open. How it will affect my circuit. I am studying the circuitry on the board, so I would like to know what happens when some signals are missing.

Please help me with this.

Thanks and Regards,