该程序是基于51单片机和AD9851的信号发生器，通过按键输入信号频率并显示于屏幕，然后计算出频率字发送至AD9851，则AD9851将产生相应频率正弦波。-The program is 51 microcontroller and AD9851 signal generator through the key input signal frequency and displayed on the screen, and then calculate the frequency of words sent to the AD9851, the AD9851 will generate the corresponding frequency sine wave.