基于ARM和FPGA的并行信号处理系统接口板设计

介绍了一种并行信号处理系统接口板的完整设计方案,着重描述了板内各部件之间的互连设计,提出了一种ARM与DSP高速互连的设计方法。设计采用共享总线的结构,利用DSP Cluster Bus为SDRAM,2块FPGA和DSP之间高速大块数据交换提供了通道。利用成熟的CPCI总线,板卡提供了高达90MB/s的主机访问DSP速度。此外,板卡还提供了适合短距离通讯的LINK口和远距离高速通讯的光纤和LVDS通道。

Interface Board Design of Parallel DSP System Based on ARM and FPGA

This text introduces an accomplished design of interface board, describes the interconnections of the components on the board, including proposing a high-speed interconnection design of ARM and DSP. This board adopts shared-bus structure, applies a high-speed data channel among SDRAM and the two FPGAs and DSP, based on DSP Cluster Bus. With the versatile CPCI interface, the design supplies an access from host to the board at the speed as high as 90MB/s. Furthermore, the board offers LINK ports for short-distance communication, LVDS and Fiber channels for long-distance applications.