DDS频率合成器

显示用8个74hc164级连

2051的串口被留下来的。。

你想干什么都可以

比如

接个EEPROM什么的。（可以用来存频道、频率）

或是多机通信

菜单也有改的余地。我只做了直接输入的程序和每位上升下降的程序。。。还有很多功能可以加。。。只要在主程序里想办法就行了。。

键盘的防抖在主程序里也要做，不然还是会出问题-DDS frequency synthesizer used 74hc164 cascaded 8 serial 2051 was left behind. . What you want can take months for example, what EEPROM. (Can be used to keep channels, frequency) or multi-machine communications have changed the menu of the room. I only went directly into the process and procedures for each increase in the decline. . . There are many features can be added. . . Just think of a way in the main program on the list. . Reduction of the keyboard also be done in the main program, otherwise it will be a problem. .