This project is used as an electronic private exchange. It has two telephones, which have the intercom facility, and they can be connected to the telephone line. All the functions are controlled by the 8-bit microcontroller AT89C2051 which has an Pro

使用8086汇编编写了一个用键盘控制发生的程序，用键盘的1－8键发出乐音，可以自己演奏-8086 compilation prepared using a keyboard control procedures occurred, with the keys of the keyboard 1-8 tone, you can play your own

有关利用DSP设计电子琴的程序，按键控制发出不同音调-On the use of DSP design procedures for organ, issued a different tone control buttons