【摘要】 介绍了如何利用ＭＣＳ－５１系列８０３１单片机、８０３８多功能信号发生器等构成一个输出频率、方波占空比和幅度均可预置和步进调整的信号发生器，同时将输出的频率占空比和幅度用数码管显示出来，并给出了其程序的框图。更多还原

【Abstract】 The paper introduces how to make use of 8031 single chip computers of MCS-51 series, 8038 multifunction signal generator to make up a new signal generator with step by step modulation in which the output frequency, square wave duty ratio and the amplitude can all be preset. At the same time, the duty ratio and amplitude in output frequency can be displayed by a numerical coder tube. It also gives the program diagram as the above concerned.更多还原