基于MPC8270的处理器板卡设计

Design of Processor Board Based on MPC8270

摘要:

随着海洋地震勘探发展,为了实现海洋地震勘探采集数据的实时传输和处理,设计了一种基于MPC8270的地震数据采集处理板卡；根据海洋地震数据采集处理的实时性和大数据量要求以及MPC8270处理器的特性,设计了基于MPC8270和FPGA的CPCI总线通信结构,能够实现地震数据的高速实时传输；详细介绍了MPC8270的关键外围电路、FPGA及CPCI总线电路的硬件设计及实现方法,并在实际应用中给出了板卡嵌入式操作系统VxWorks配置的实现方式；板卡以MPC8270作为核心处理器,以FPGA为控制核心电路,以VxWorks为实时操作系统,实现地震数据的高速处理和CPCI总线实时传输功能；经过多次实验室内部测试及海上实际生产应用,结果表明地震数据采集处理板卡能够实现地震数据的高速处理和实时传输,并且板卡性能稳定可靠；板卡的设计简单,结构通用,对数据处理、总线控制和信息交换等领域相关系统的开发具有一定的参考价值。

Abstract:

With the development of marine seismic exploration, in order to realize the real-time data transmission and processing of marine seismic exploration, a seismic data acquisition board based on MPC8270 is designed; according to the requirements of real-time and large amount of data for marine seismic data acquisition, and the characteristics of MPC8270, the design of CPCI bus communication structure based on FPGA and MPC8270 that can achieve high-speed and real-time transmission of seismic data. Introduces the hardware design and realization method of the key peripheral circuit of MPC8270、 FPGA and CPCI bus circuit, and the configurations of embedded operating system VxWorks are given. The board with MPC8270 as the core processor, using FPGA as the control core circuit, real-time operating system based on VxWorks and CPCI bus, realize high speed processing and real-time transmission of seismic data；after several laboratory internal testing and field application,results show that the seismic data acquisition board can realize high speed processing and real-time transmission of seismic data, and the board performance is stable and reliable; The design of the board is simple, the structure is general, it has a certain reference value to the development of the related system of the data processing, the bus control and the information exchange and so on.