键盘的驱动，c代码，给嵌入式用的，可以拿来自己研究用，比较不错。大家多交流...

基于at89c51snd1cMP3源程序-Based on at89c51snd1cMP3 source

采用8位LED动态扫描时钟演示程序，使用12MHZ晶振，P0口输出段码，P2口作列扫描，用共阳LED数码管。-Using 8-bit dynamic scanning LED clock demonstration, the use of 12MHZ crystal, P0 port output above code, P2 scan I made out with a total of LED digital tube Yang.

用ds18b20+ds1302+89s52做的时钟-With ds18b20+ Ds1302+ 89s52 make clock

串口程序，内有详细的注释，是参考网上流传的串口调试助手写的，在此进行了分栏显示的改进，学习者也可以将其中的控件属性设置为可见，实现和串口调试助手一样的功能。-Serial process, with detailed notes, with reference to the spread of online serial debugging assistant written in this column have been shown to improve, learners can also control which property is set to visible, to achieve and serial debug Like assistant functions.

电子屏字符显示器 电子设计， 解释清楚，一看即懂，简单明了 -E-Screen Character Display Electronic Design, explain clearly that one look to understand, simple to understand

TDK 6521 SOC 芯片 DEMO程序，由TDK 公司提供，可直接使用。开发平台keil c51。-TDK 6521 SOC chip DEMO procedures provided by the TDK Corporation, can be used directly. Development platform keil c51.

32位arm9微处理器S3C2410的dma测试源代码

报警测试程序，用于测试设备中的报警信息，进行和用户之间的显示和对话操作。-Alarm testing procedures, test equipment for the alarm information, and user display and dialogue between the operator.

PIC 16F7x 数据表 参考-PIC 16F7x Datasheet for programmer

本设计提供了通过VC和上位机软件来控制步进电机的方案-This design through the VC and PC software to control stepper motor program