Implementation of digital constant fraction timing based on field programmable gate array
Wenwan Ding, Chuanhao Hu, Yang Cao, Xuegang Li, Tao Yue, Kunling Zhao, Song Zhang, Wenbing Zhang, Yi Gu · Journal of Physics Conference Series · 2021
Abstract Compared with analog circuits, FPGA(Field Programmable Gate Array) had the advantages of redevelopment and low cost. Compared with MCU, FPGA used hardware description language to construct the circuit, which had the advantages of simple structure and fast parallel operation speed. In this paper, the simulation of digital Constant Fraction Timing can be realized based on FPGA, and the feasibility and accuracy of the design can be proved by using the simulation waveform of Modelsim and the waveform can be captured by signaltap. Modelsim can verify the correctness of the timing between modules, and signaltap can verify the actual running effect of the program on the board.