TI中文支持网如题，目前在基于该系列的CPU 开发我们的产品。请问AM335X系列是否有指定的寄存器，可以查询目前USB HOST PORT的设备是否连接？
Shine：
AM335x里没有指定的寄存器查询设备连接状态，是通过检测DP/DM管脚状态来判断。
Assuming that the voltage level of the USBX_VBUSIN is found to within the Vbus Valid range, the USB 2.0 host controller will wait for a device to connect; that is for it to see one of its data lines USB0/1_DP/DM be pulled high.
