ds1302制作的数码管电子闹钟 显示当前时间，可设定闹钟时间...

介绍了在使用pdiusbd12进行usb开发时常遇到的问题以及回答。-Describes the development of the use of pdiusbd12 to usb problems and to answer questions from time to time.

通过EC的SMBUS接口读取电池信息，如电流、电压、温度等-read battery information via SMBUS in EC interface

用汇编程序编写的音乐控制 系统可以选择将近40首歌-procedures used to prepare a compilation of music control system can choose to nearly 40 songs

学习51串口的经典例程，对于学习51串口很好处；熟悉串口的初始化及给端口的理解很有帮助！-51 classic serial learning routines, learning well Office 51 serial port familiar with the serial port initialization and to the understanding of great help!

学习C51的最好例子程序-study of the best examples of procedures

MSP430F20xx系列单片机汇编源代码-MSP430F20xx MCU compiled source code

自己在keil51中用C实现了一个电子钢琴展览项目，cpu用P89V51RD2，完全自己写的代码-Keil51 with C in the realization of an electronic piano exhibitions, cpu use P89V51RD2, completely write their own code. .

protel元器件TQFP-44封装。做好的封装，可以直接用于PCB的绘制！-protel components TQFP-44 package. Do a good job of packaging, can be directly used for PCB drawing!

本人写的一个1602液晶屏显示程序，是用汇编写的・・欢迎交流与学习-I wrote a 1602 LCD screen display program, is welcome to use the compilation of written exchanges and learning

BH1415F调频台控制C程序。使用AT89C52单片机，12MHZ晶振，用共阳四位LED数码管。频率数据转换为显示用BCD码函数。-C FM BH1415F control procedures. AT89C52 single-chip microcomputer use, 12MHZ crystal, with a total of four LED digital tube Yang. Frequency data into a display function using BCD code.