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Stm32f407 vs stm32f415 vcp driver

Question asked by toth.janos on Jan 30, 2014
Latest reply on Jun 8, 2014 by Clive One
Hello everybody!

I've a working vcp driver for stm32f4discovery board(stm32f407vg). Use the standard st usb library. This is working well. If I change the device with an stm32f415 mikrocontroller, the code is running, but at the device manager I don't see the com port.
Is anybody have an idea what is the problem? The usb pins are the same.