Design Of Digital Pulse And Random Sequence Generation And Control Module

In today's rapidly developing informationage,digital pulses and random sequences play an important role in digital communications.Standard digital pulses can be used as signal sources and clocks for other test equipment.Random sequences can be used as military equipment fault diagnosis and test sources.In this paper,we study the random pulse generation of random sequence by studying the types and modes of digital pulse,continuous pulse width and delay,data editable and three kinds of pattern switching,Random processing and detection,The contents of digital pulse and random sequence are mainly included in this paper:1.External clock and internal clock normalization technology researchThe design of the external clock input after the corresponding processing,input to the FPGA and the phase-locked loop output of the same clock clock processing,to achieve the normalization of the clock processing.2.Research on storage technology of digital pulse mode and operation modeThe design of the pulse and the group pulse to the data stored in the way of output to achieve a different mode of operation through the late circuit can be classified into three categories,gated mode,conversion mode,clear mode,the external input trigger signal to enable processing.3.Pulse width,channel delay continuous adjustable technology researchThe design uses the counter to count the number of pulses,the pulse width of the rising and falling edge of the delay between the coarse adjustment,the channel delay through the FPGA internal delay of the delay module to achieve the latter through the external hardware chip Perform a 2ps fine tuning implementation.4.Random source hardware generation technology researchThe oscillations are generated by the oscillating ring,one of which is sampled as a sampling clock to produce a set of random sources.The RS flip-flop uses the metastable principle to generate a second set of random sources.The two sets of random sources are XOR Processing to reduce the deviation of random sources.5.Random number on-line detection technology researchThe design of the random module generated by random random number of random detection,first of all the host computer through the reverse calculation of the relevant parameters,and compared with the results calculated by the FPGA to get the results.The random number detection includes a frequency detection module and a run detection module.