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PSoC 5, 3 & 1

Anonymous
Not applicable

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:

pastedImage_0.png

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...

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SampathS_11
Moderator
Moderator

IMO_TR1 can be written to when USB is not connected. LSB[2:0] are prevented from being written when USB is disconnected.

Best regards,

Sampath Selvaraj

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SampathS_11
Moderator
Moderator

IMO_TR1 can be written to when USB is not connected. LSB[2:0] are prevented from being written when USB is disconnected.

Best regards,

Sampath Selvaraj

View solution in original post

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