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deep-sleep and USB0 conflict

Question asked by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by wlan8051 on Mon Aug 12 00:20:34 MST 2013
So I'm still trying to put the LPC4330 to Deep-sleep.

To minimize power consumption I'm disabling almost all of the on-chip peripherals using the library function "CGU_ConfigPWR (CGU_PERIPHERAL_T PPType,  FunctionalState en);" before entering sleep mode. I cannot disable CGU_PERIPHERAL_USB0, when I do the CPU only enters the Sleep when debugger is connected. Without a debugger the transition fails. I'm not using the USB interface so I cannot explain this behavior with a bug in my own code.

Anyone care to share experiences with trying to enter a Deep-sleep mode while disabling basically everything to get an absolutely minimum current consumption?