Writing an Input Module The sample module introduced here is called idiom (Input Device for Intercepting Output of Mice), The sample module registers itself with the USB kernel subsystem as a mouse driver and with the input management subsystem as

FX2 TechRefManual对FX2系列芯片内部的所有寄存器的功能进行了详细的说明，是开发者的好帮手。-FX2 TechRefManual gives a detailed discr iption of all registers functions of the FX2 series of chips,it is the developers good helper.

USB内部usb 控制端口寄存器的封装代码，用户可以直接更改来控制usbde 工作模式 -USB internal usb control port registers package code, the user can change the mode to control usbde

The modem performs channel selection and demodulation in the digital domain. The channel filter bandwidth is configurable 620 to 2.6 kHz. The data-rate, modulation index, and bandwidth are set via registers 1C–25. The modulation index is equal to