基于DSP实验开发板（芯片：TMS320***）的低频信号源，可以产生正弦波、方波、锯齿波、三角波等常用信号，并能够进行频率、幅度的增减以及波形切换等功能。(The low-frequency signal source based on DSP experimental development board (chip: TMS320***) can generate sine wave, square wave, sawtooth wave, triangle wave and other c