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介绍一种在嵌入式系统中使用微处理器被动串行配置方式实现对FPGA配置的方案,将系统程序及配置文件存在系统Flash中,利用微处理器的I/O口产生配置时序,省去配置器件;讨论FPGA的各种配置方式及各种配置文件的使用;详述被动串行配置的时序及在嵌入式系统中实现的软硬件设计;说明本方案的优越性及应用前景。
This paper introduces a scheme of using passive serial configuration mode of microprocessor to realize FPGA configuration in embedded system. The system program and configuration file are stored in system Flash, and the configuration timing of microprocessor I / O port is eliminated. Configure the device; discuss various configuration methods of FPGAs and the use of various configuration files; detail the timing of passive serial configuration and the hardware and software design implemented in the embedded system; and demonstrate the superiority and application prospect of this solution.