VPX平台的多板卡FPGA动态配置方法

Multiple Boards FPGA Dynamic Configuration on VPX Platform

针对VPX平台板卡的FPGA通常采用上电时从非易失性存储器主动加载配置数据的方式,存在灵活性较差的缺点。文中提出了一种基于CPU+SPI总线+CPLD的多板卡FPGA动态配置方法,可在不开箱的情况下对平台内各板卡FPGA进行动态配置。经测试,该方法配置10.9 MB大小的数据用时约为7 s,具有较好的灵活性和可靠性。

Currently,FPGA on VPX platform board usually loads configuration data from nonvolatile memory initiatively when power-on occurs,which has the disadvantage of inflexibility. This paper presents a multiple boards FPGA dynamic configuration method based on CPU ＋ SPI bus ＋ CPLD which offers FPGA configuration on boards without opening the box on VPX platform. It takes about 7 seconds to configuring data of 10. 9 MB by this method with good flexibility and reliability.