Because of the self limitation of clock frequency and instruction operation in MCU, speed in the frequency measuring system developed by MCU alone is relatively slow, which is unable to meet the strict requirements of highspeed frequency testing in frequency hopping communication. In order to meet the request of the rapid response and high sensitivity in frequency testing, this paper introduce a method of the high-speed frequency measurement system which takes the FPGA as the core process chip and the MCU(C8051F020) as the data processor. Com...