FPGA fast loading of configuration files through CPLD
Kaihang Li · Modern Electronics Technique · 2012
SRAM-based FPGA is widely used in modern communication systems because of its programmable and scalable features.However,due to its volatile,every time after power on,it should be reloaded.With the improvement of the complexity of the communication system,the configuration file of FPGA is getting larger,and the loading time is getting longer.These affect the system's start-up time seriously.A scheme of FPGA serial loading through CPLD is presented in this paper to improve loading efficiency of FPGA.The valitation shows that the scheme can not only save the GIPO pins of CPU and FPGA,but also improve loading efficiency of FPGA and reduce the start-up time of system.It is an ideal method suitable for complex modern communication systems.