基于SoC FPGA的数字荧光算法实现

Implementation of digital phosphor display algorithm based on SoC FPGA

数字荧光技术给电子工程师提供了一个全新的视角,相较于传统方法,它能够有效地减少波形观测的死区时间。由于波形捕获率得到极大提升,一些偶发的信号也更容易被捕获到。本文以SoC FPGA为平台构建了三维波形,并在片上系统上实现了整体设计。系统使用FPGA实现数字荧光核心算法,并通过片上总线与硬核ARM CPU构成片上系统,最后,在ARM上加载Qt界面实现波形显示和用户交互。经过测试,系统波形捕获率可以达到50000wfms/s以上,并能直观地观察到传统测量方法中难以看到的突发信号。

Digital phosphor display technology provides a new perspective for electronic engineers.Compared with the traditional methods,it can reduce the dead time of waveform observations effectively.As the waveform capture rate is improved greatly,some occasional signals were more likely to be captured.This paper builds the three-dimensional waveform on the platform of SoC FPGA,and implements the overall design in on-chip system.The system uses FPGA to implement phosphor algorithm.By the means of on-chip bus,FPGA connect to a hard core ARM CPU and forms an on-chip system.Finally,we install a Qt app on the ARM to implement the display of waveform and the user interaction.After the test,the waveform capture rate of this system can be over 50000wfms/s.This system could be used to observe some transient signals,which were hard to be seen in traditional methods.