电子科技大学学报2024，Vol.53Issue(2)：219-226,8.DOI:10.12178/1001-0548.2023320
数字示波器中FPGA间高速信号传输同步方法
High-Speed Signal Transmission Synchronization Method Between FPGAs in Digital Oscilloscopes
摘要
Abstract
The data acquisition system is the core component of Digital Storage Oscilloscopes(DSO).With the gradual increase in the bandwidth and sampling rate of oscilloscopes,the single-chip Analog to Digital Converter(ADC)+ Field Programmable Gate Array(FPGA)architecture is difficult to meet ultra-high-speed and multi-channel application scenarios.Therefore,data acquisition systems in high-end oscilloscopes generally adopt a'Master-Slave'FPGA control architecture.Under this architecture,the synchronous transmission of signals between multiple FPGAs is an important prerequisite for achieving synchronization and accurate acquisition of the acquisition system.This paper proposes a method for high-speed signal synchronous transmission between FPGAs to solve the problem of signal synchronization transmission between multiple FPGA boards.With help of FPGA's IODELAY unit,the most stable synchronization transmission interval is found through test data training,and synchronization transmission between multiple FPGAs is realized.Experiments on a domestic digital oscilloscope shows that this method can effectively achieve synchronous transmission of high-speed signals between FPGAs.关键词
超高速数据采集系统/现场可编辑门控阵列/传输同步/数字存储示波器Key words
ultra-high-speed data acquisition system/field programmable gate array/transmission synchronization/digital storage oscilloscope分类
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高媛,赵禹,王厚军,叶芃..数字示波器中FPGA间高速信号传输同步方法[J].电子科技大学学报,2024,53(2):219-226,8.基金项目
国家自然科学基金青年基金(62201125) （62201125）
