Research And Design Of The Navigation Computer Based On SOPC

Navigation Computer System has the features of high efficiency, low cost, low power consumption, high abundant interfaces, and responds to the requirements of accuracy, high stability and real-time. With these features and requirements of system, the design of the Integrated Navigation Computer System based on Xilinx Spartan3E 1600E FPGA and TMS3206713 DSP and applied SOPC technology is proposed.Firstly, this paper presents the Background and Significance of this topic, and illustrates the developments of Integrated Navigation Computer System and the trends in future. Then, analysising the status,main characteristics,design process and basic principles of SOPC technology. And then introduces the overall design of the system based on SOPC.Then, by writing a Xilinx Board Description (XBD) file based on this platform, a SOPC minimum system is constituted. In this system, many hardware controllers used to realize a navigation computer with the way of IP core is applied to, include CAN controller IP core, GPS Serial Communication IP core, data acquisition IPcore of gyroscope, accelerometer, milemeter, height meter, and IP core of communicating with FPGA and DSP. After that, a software programmer is designed to achive the function of data acquristion of UART, CAN, gyroscope, accelerometer, milemeter, height miter. These data is sent to DSP processor by FSL bus interface or to PC and CAN equipment by serial port and CAN interface.At last, the interfaces of the integrated navigation computer System is tested and valided.The navigation computer system which is based on SOPC has the characteristicsed of flexibility, scalability, small volume, which is meeted to the future direction of the integrated navigation computer system and laid a good foundation to the further development and application.