多芯片协同的数字信号时序分析装置

Multi-chip Collaborative Digital Signal Time Series Analysis Device

为了弥补示波器观测通道少,丰富数字电路测试装置功能,设计了一个多芯片协同的数字信号时序分析装置。这一装置能同步显示八路数字信号,主要由外部时钟信号发生模块、数字信号发生模块、数字信号时序分析模块、显示模块、电源模块组成,采用三芯片串行通信协同工作的方式。第一块芯片作为外部时钟信号源,将时钟信号输出至其它两块芯片。第二块芯片作为八路数字信号发生电路来使用。第三块芯片用于接收八路数字信号,进行各项数据处理,使用内部数模转换器权电阻网络,将结果显示在示波器上。试验结果表明,这一装置能够通过示波器同步显示八路数字信号,具有时间标志线、触发位置切换、存储回放等功能。

In order to make up for the small number of oscilloscope observation channels and enrich the function of digital circuit test device,a multi-chip collaborative digital signal time series analysis device was designed.This device can synchronously display eight digital signals,mainly composed of external clock signal generation module,digital signal generation module,digital signal timing analysis module,display module,power supply module,using three-chip serial communication to work together.The first chip acts as an external clock signal source,outputting the clock signal to the other two chips.The second chip is used as an eight-way digital signal generation circuit.The third chip is used to receive eight digital signals,perform various data processing,and display the results on an oscilloscope using an internal digital-to-analog converter weight resistor network.The test results show that this device can synchronously display eight digital signals through the oscilloscope,and has functions such as time marker line,trigger position switching,and storage playback.