基于Virtex4的SoPC系统设计

随着微电子技术的飞速发展和嵌入式系统要求的提高,硬件集成度迅速增长,以FPGA作为物理载体进行芯片设计的SoPC设计方式已经兴起.以PowerPC405处理器硬核为核心,开发基于PowerPC405的SoPC系统.本系统中,将通常独立的处理器、外设,分别作为硬核、软核集成入FPGA中,达到系统可编程、减少外围器件数目和PCB面积、降低功耗以及提高系统抗干扰能力等目的.针对SoPC开发的关键技术进行分析,最后采用Xilinx的Virtex4 FPGA实现基于PowerPC405的SOPC系统.

Design of SOPC System Based on PowerPC

With the rapid development of microelectronics technologies and higher requirements of embedded systems,integration of hardware has become higher;the chip design technologies based on FPGA that called SoPC design methods have developed fast.Based on the PowerPC405 processor this paper develops the SoPC system.The processor and peripherals are integrated as hard IP and soft IP into the FPGA,so as to reprogram,decrease peripheral equipments and area of PCBs,enhance the ability of anti-jamming and reduce the power and so on.The paper focuses on the analysis of the SoPC design.At last,a design based on PowerPC architecture of SoPC is introduced as an example.