用adc0809+12864做的一个简单的示波器，可采到1K左右的波形，附带ds1302时间显示程序,Adc0809+12864 to do with a simple oscilloscope, can be taken to around 1K waveform display program with ds1302 time

ADC0808/ADC0809 8-Bit μP Compatible A/D Converters with 8-Channel -ADC0808/ADC0809 8-Bit μP Compatible A/D Converters with 8-Channel

利用at89c51和adc0809实现产生三角波，利用算法实现，具有清零的功能-At89c51 and adc0809 achieve the triangular wave generated using the algorithm, with clear features