用单片机来实现方波、正弦波、余弦波的输出,在proteus中模拟电路,并在示波器上观测波形.,Using single chip to achieve the square wave, sine wave, cosine wave output of analog circuits in proteus and observed in the oscilloscope waveform.

0809 A/D 转换程序,可进行高精度的转换显示.,The conversion process, can show high-precision conversion.