I have a PsoC 5LP (CY8C58LP-LP035) application that infrequently uses a USB connection to a PC. Most of the time the system runs disconnected from USB. I would like to be able to trim the IMO while disconnected from USB and use the USB trim while connected to a PC over USB.
It uses the internal IMO at 24MHz and IMOx2 for USB:
Is it possible to write to IMO_TR1 when the USB cable is physically disconnected?
I am pretty well stuck with the internal oscillator at this point...
IMO_TR1 can be written to when USB is not connected. LSB[2:0] are prevented from being written when USB is disconnected.