本文介绍一种多功能信号发生器的设计,系统采用凌阳公司SPCE061A单片机,实现数字式正弦波、三角波、方波信号的输出,幅值和频率可调,具有液晶显示和语音播报波形种类、频率、幅度的功能。经测试验证,该信号发生器结构简单,操作方便,输出稳定,成本低廉,具有较高的实用价值。 This paper introduces a multi-function signal generator design, the system uses Sunplus SPCE061A microcontroller to achieve digital sine wave, triangle wave, square wave signal output, adjustable amplitude and frequency, with liquid crystal display and voice broadcast waveform types, Frequency, amplitude function. The test proved that the signal generator has the advantages of simple structure, convenient operation, stable output, low cost and high practical value.