采用信号发生芯片，与单片机结合，能够产生常用的信号波形，此信号发生器能够满足实验要求，为昂贵信号发生器低成本代替品，包含实际仿真电路与程序文件-Signal chip microcontroller, able to generate the signal waveform signal generator can meet the test requirements, low-cost alternative to expensive signal generator contains the