Design And Realization Of The Bus In Multifunctional Signal Source System Based On FPGA

Bus is an important part of the embedded application system. In embedded system, bus is a bridge between the different devices. Through the bus we can implementate connection and communication, in the Chip,between the various components in printed circuit board, between the plug-in boards in the chassis, between the host and external device or between systems and systems.Bus and the embedded systems have rapid development today ,so a good or bad design of bus impacts directly the performance,the reliability,the expansion,the upgrading of the entire embedded system.So,based on the design of the bus,and the application of the characteristic of FPGA device's logic can being repeatedly configurated,this makes the reconfigurable systems become possible.In this paper,first, we introduce the overall structure of the system,and introduce the design and generation of system bus and the distribution of address,then introduce the USB port of the system backplane communication interface and its application and implementation in the system. Second,we give a scheme of configuration online based on bus,then introduce the design and implementation of its hardware,and introduce the design and implementation of its software in details,and give its MODELSIM simulation results.Finally,we introduce the platform design and implementation to use to communicate between host general controller and system.