在Power-I 51 Mini开发板上，基于89C51单片机开发的数字音乐盒，可以实现上一首下一首，播放，暂停，停止，的按键功能，并有数码显示时间，开机画面和曲号。-in the Power- I 51 Mini development board. 89 C51 microcontroller based on the development of the digital music player, can be achieved on the first one the next broadcast, suspension, stop, The function keys and a digital display, startup screen, and song.

Uart串口自发送程序,单片机自动给上位机传送数据-Usart auto send data

简易正弦波三角波方波发生器 使用keil C51,12MHZ晶振,AT89C2051 -Simple sine wave square wave triangle wave generator using keil C51, 12MHZ crystal, AT89C2051

AP89042是不可从复录音的分段式语音芯片,对语音电路的开发人员有一定的帮助.-AP89042 is not from the sub-Minute recording voice chip, the voice circuits developers will help.

单片机小工具（实用） 可以用来做单片机的开发工具，很实用的-Small single-chip tool (utility) can be used to make single-chip development tools, it is useful

AVR控制SD卡或MMC卡的程序 调试通过-AVR control the SD card or MMC card through the program debugging

使用68HC705J1A写的一个键盘的代码,包括资料说明,一份难得的资料,本人开发键盘时好不容易才找到的资料-68HC705J1A use of a keyboard to write code, including the information note, a rare information, I developed the keyboard is not easy to find when the information

这是我大学4年来做过的竞赛以及老师的科研项目所积累下来的c51源代码，一共有40多 个，心血啊！-This is my 4-year university has done the race, as well as the teacher

实现键盘码的读取，并在LED上显示。单片机部分，并在KEIL下运行-? 殚 ???? ???????邋 ?LED 邋 ???? ??机 ??殚 ????邋 ?KEIL 邋 | |

PC机与单片机的双向通信查询控制方式， 用C语言写成。-PC and MCU query bi-directional communication controlling method, using C language.