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