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Change usb configuration on the fly in STM32F103

Question asked by meeks.lester on Nov 10, 2011
Latest reply on Nov 10, 2011 by meeks.lester
I am working updating and existing project that has 2 modes of running the usb in our product.  One is a serial port mode that is working as expected, and an emulated msd cdrom that is also working as expect.

What I am trying to add is a way to dynamically switch between these two configurations on the device.  I have attempted to perform a reset similar to those in the example projects for usb serial and msd, but the host computer does not see a device change.  Is it possible to change the configuration on the fly without electrically disconnecting from the host and reenumerating?

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