Posted on March 21, 2012 at 23:11I was able to make it work with OTG. The problem I had was related to the use of 8MHz crystal whereas the library provided by ST is based on 25MHz for 105/107 series and thus the 72MHz clock is not really achieved.

Posted on March 21, 2012 at 21:42You can connect DP & DM directly to STM32F105. The VBUS should be connected to PA09, no need for ID pin. This should be sufficient for VCP. I am using STM32F105R8 (64pin) and tried the VCP in STM32_USB-FS-Device_Lib_...