FPGA器件在嵌入式系统中的配置方式的探讨

通过说明FPGA的各种配置方式及各种配置文件的使用,重点探讨了在嵌入式系统中使用FPGA的软硬件设计。使用微处理器在线配置FPGA时,需要将存储在Flash中的配置文件,通过微处理器的I/O口存储到FPGA的数据存储器(SRAM)。文中详述了如何利用FPGA的被动串行方式(PS)配置方式,和根据配置时序实现嵌入式系统中FPGA的配置电路和相应的应用软件的过程。

Research on method of FPGA configuration in Embedded System

Through explaining sorts of FPGA configuration methods and how to use sorts of configuration files, the design of how to implement and use software and hardware of FPGA in Embedded System is probed. When CPU is used for configuring FPGA on line, the configuration files, which are stored in FLASH, will be transferred from I/O of CPU to SRAM of FPGA. Then these configuration files will be stored in SRAM of FPGA. The process of how to use PS configuration method of FPGA and use its configuring Time Order for implementing FPGA configuring circuit and application software in Embedded System is described in detail.