基于单片机的DDS信号源设计：

设计一台函数信号发生器，使其能产生正弦波、三角波、方波信号。

1、函数信号发生能产生正弦波、三角波、方波三种周期性波形。

2、输出频率在100hz到6khz

3、可实时显示输出信号的类型、频率

4、输出信号波形无明显失真

-Microcontroller-based DDS signal source design: design a function signal generator, so that it can produce sine wave, triangle wave, square wave signal. 1, the function signal generator can produce sine wave, triangle wave, square wave three kinds of periodic waveforms. 2, the output frequency at 100hz to 6khz 3, real-time display of the output signal type, frequency 4, the output signal waveform without significant distortion