语音芯片PM50八方源代码，在播音函数中写入你需要播音的例子即可播放对应的语音。...

PTR8000的一个调试程序，功能还可以。-PTR8000 a debugger, functions can also be.

msp430应用系统开发典型实例 第5章程序代码-err

arm7 lpc2132 GPIO driver for beep

光电鼠标的电路图，很好的，多多交流学习-Circuit diagram of optical mouse, very good, a lot of exchange of learning

avr 单片机 定时器初始化、应用原代码-Singlechip avr timer is initialized, the application source code

一个液晶显示器TX240128程序。我把我小孩的相片做在上面了，如果你用51的片子就能调试你的显示器了。端口连接在程序中有定义。你看下就知道了哈！-A liquid crystal display TX240128 procedures. I put my kids to do in the photo above, if you use the 51 films will be able to debug your display has. Port in the procedure definition. You know facie Ha!

通信方式是485方式。通过485来控制一组灯的开关。-485 are way communication. Through 485 to control a group of light switches.

仪器仪表键盘显示模拟系统，用AT89S52芯片作为系统的CPU，控制系统的按键及显示器部分。用8路同相三态双向总线收发器74LS245芯片驱动LED。4X4矩阵键盘作为系统人机交互的重要部分，用于向单片机应用系统输入数据或控制信息，设计4X4矩阵键盘分别对应键码“0-F”。系统可以实现的基本功能包括开机LCD液晶屏幕显示“大专05电子信息X班XXX毕业设计”信息；按下任意一个按键，LCD液晶屏幕显示相应按键的信息。在基本功能的基础上还增加了一个扩展功能，即增加一个LED数码管同步显示相应键码-Show the simulated keyboard instrumentation systems, using AT89S52 chip as a system CPU, system control buttons and display parts. With 8-phase three-state bidirectional bus transceiver 74LS245 chip-driven LED. 4X4 matrix keyboard system as an important part of human-computer interaction, single-chip microcomputer application system used to input data or control information, the design of 4X4 matrix keyboard key code corresponding to

广东工业大学第五届电子设计大赛 《交通灯控制系统》 信息工程学院 04应用电子2班 -Guangdong University of the fifth Electronic Design Contest

用485实现单片机之间的串行通信。 主机部分发送从机地址，等待从机响应，从机准备好就发数据,发完就接收从机的响应，接受成功就跳出循环，否则重发。-MCU with 485 Serial Communication between. Host of this address from the plane, waiting for the response from the plane, from the plane ready to discuss the data, finished on the reception of the response from the plane. set aside for recycling success, otherwise re-issued.