Application Of PC104 Control System Based On Linux In The Network Analyzer

Recently, embeded system is one of the hottest field of the computer application aera. This article applies the embeded operation system which is called Linux to the control system of the network analyzer, and develops a PC104 control system based on the Linux.Firstly, this paper shows the principles and the whole design of the network analyzer. Then, mainly introdeces the hardware and software design of USB communication and the realization of the user program under Linux. There are four parts in this system , including USB firmware programming , software and hardware configuring of PC104 control system , the realization of USB driver under Linux and the realization of the user program under Linux .In the hardware design, there is a SOC called C8051F060 and a USB chip called PDIUSBD12. The microcontroller controls the USB chip to comminicate with the PC104 board in the upper part.In the software design, this paper uses C languish to program the USB firmawre, uses libusb to develop the USB driver under Linux, and at last uses a graphical user interface library called GTK to develop the user program which realizes the realtime analyzation of the data and the display of the wave.In the end , there is a conclution about the research of PC104 control system based on Linux, and points out the prospect of its development .