本文设计了一个简易函数发生器，可根据要求生成正弦波、方波、 三角波和锯齿波，波形的幅值、频率和电流偏置量均可在一定范围内调节。(A simple function generator is designed in this paper. Sine wave, Fang Bo wave, triangle wave and sawtooth wave can be generated according to the requirements. The amplitude, frequency and current offset of the waveform can be adjusted in a certain range.
The hardware circuit is designed with AT89C51 as the core, and uses digital to analog converter DAC0832, LCD AMPIRE128 * 64, integrated operational amplifier and other components.)