（1）设计并实现一个模拟带宽为400Hz～3000Hz 的简易数字存储示波器。

（2）要求应用输入信号幅值为0～5V，含8 路选通开关的A/D 器件0808 进行数据采集转换，128×64 全点阵液晶显示模块TG12864E 显示输入信号波形。

（3）要求能由单片机控制频率变化、幅度步进，能良好的在液晶显示模块上显示幅度0～5V,波形显示可以自动刷新，也可手动刷新。

-(1) design and implementation of an analog bandwidth of 400Hz ~ 3000Hz simple digital storage oscilloscope. (2) requires the application of the input signal amplitude is 0 ~ 5V, 8-way with gated switch A/D converter data acquisition device 0808, 128 × 64 full dot matrix LCD module TG12864E shows the input signal waveform. (3) requests can be controlled by the microcontroller frequency, amplitude step, to a good display on the LCD display module range of 0 ~ 5V, waveform display can automatically refresh, can also be manually refreshed.