本程序实现任意波形发生器的菜单选择操作。

代码说明：

此程序实现任意波形发生器的菜单选择操作及向FPGA发送控制命令，实现任意波形发生并能将产生的组合波保存下来，有掉电保护的功能-Realize this procedure arbitrary waveform generator of the menu to select the operation and send control commands to the FPGA to achieve arbitrary waveform occurs and can produce a combination of wave preserved, has brown-out protection function