简易数字信号时序分析装置的设计与实现

Design and Implementation of Simple Digital Signal Timing Analysis Device

采用四个单片机为核心设计了8位数字信号发生电路和数字信号时序分析装置,其中单片机1为产生8路循环移位脉冲,同时采用单片机2控制一个双路DA转换器TLC7528以及运放NE5532产生锯齿波加在示波器x通道,单片机3是控制按键输出,同时利用单片机4设计了一个自带的100 kHz的clock信号。实现了示波器在X-Y模式下同时显示8个循环移位脉冲,并根据触发字TW的字调节波形的位置。

A 8-bit digital signal generating circuit and a digital signal timing analysis device are designed with four single-chips as the core.The first single-chip microcomputer generates 8-channel cyclic shift pulses,and the second single-chip controls a double-channel DA converter TLC7528 and the op-amp NE5532 to generates zigzag wave added to the X-Channel of the oscilloscope.The third single-chip controls the transmission of keys.The oscilloscope can display 8 cyclic shifting pulses simultaneously in X-Y mode,and adjust the position of the waveform according to the trigger word TW.