前大部分FPGA都是基于SRAM工艺的，而SRAM工艺的芯片在掉电后信息就会丢失，一定需要外加一片专用配置芯片，在上电的时候，由这个专用配置芯片把数据加载到FPGA中，然后FPGA就可以正常工作，由于配置时间很短，不会影响系统正常工作。也有少数FPGA采用反熔丝或Flash工艺，对这种FPGA，就不需要外加专用的配置芯片-Before most of the FPGA is SRAM-based technology, chip SRAM process information after power is lost, plus a dedicated configuration chip, when in power, by the special configuration chip data is loaded into the FPGA , and then the FPGA can work properly, the configuration time is very short, and will not affect the system work properly. A small number of FPGA antifuse or Flash technology, the need for external of this FPGA-specific configuration chip