In-Chip configuration modes and configuration files of FPGA,based on SRAMLUT structure,are presented,and one of them,passive serial configuration method(PS mode) is selected finally in this system.Also,in this embedded system,using ARM7TDMI micro-processor to produce FPGA configuration clock is proven available.A Mini-application system,with codes related,and analyzing how to generate FPGA configuration clock,is given.The result of the paper shows the design could be realized in practice.