介绍一种在嵌入式系统中使用ARM处理器从串配置FPGA的方法,将系统程序及配置数据存储在系统Flash中,利用ARM的通用I/O口产生配置时序,省去专用的配置PROM。详细讨论了Xilinx公司FPGA从串配置的时序,论述了S3C44B0X从串配置Spartan-3E系列FPGA的软硬件实现。 This paper introduces a method of configuring FPGA from a string using ARM processor in embedded system. The system program and configuration data are stored in the system Flash, and the configuration timing is generated by using the general purpose I / O port of ARM, eliminating the need for a dedicated configuration PROM. Discusses in detail the timing of Xilinx FPGA slave-string configuration and discusses the hardware and software implementation of S3C44B0X slave-serial configuration Spartan-3E series FPGA.