Protel shortcuts. Protel Cabling improve the speed of a good information

单片机最小系统，两位LED数码管由串口输出接两个164驱动，Lout,Rout为左右声道输出，SET， ALT0， ALT1为三个按键，也可自己在开始的I/O定义改成你想用的I/O口；12M晶振，若用89C51则只可装下约14首歌曲，用89C52则可装下近40曲-The smallest single-chip system, the two LED digital tube by the serial output driver 164 then two, Lout, Rout output for the left and right channels, SET, ALT0, ALT1 three buttons can also be their own at the beginning of the I/O definition change you want to use the I/O port 12M crystal, if one uses a 89C51 only loaded about 14 songs can be loaded with 89C52 under near 40

AT89S52单片机驱动AD9833产生信号，三角、正弦、方波均可。-AT89S52-driven single-chip AD9833 produced signal, triangle, sine, square wave can be.

凌阳单片机驱动12864液晶，控制器ST7290-Sunplus 12864 single-chip LCD driver, controller ST7290

关于SPLC501C的液晶编程，实现了中文菜单形式，可以参考-SPLC501C LCD on the programming and realized the Chinese menu form, they can refer to

基于51系列单片机的DS18B20测量温度系统. 正在学习单片机-MCU DS18B20 temperature measurement system. SCM is learning

一个通过方向判别芯片进行角度计算的程序，实现简单的方向判别功能-Determine the direction of a chip through the perspective of the calculation procedure, the direction of the realization of a simple discriminant function

X5045芯片的C51程序，X5045是看门狗加EEPROM-X5045 chip C51 procedures X5045 is the watchdog increase EEPROM

NS2教程――非常适合初学者学习使用的一本好教程-NS2 Tutorial- very suitable for beginners to learn to use a good tutorial

用硬件协议栈芯片w3100a实现udp协议，用51单片机实现 kei51环境-hardware protocol stack chips w3100a achieve udp agreement with 51 MCU environment kei51

单片机P2口4×4键盘。分别是0到15，很好用的程序欢迎大家下载-SCM P2 port 4 × 4 keyboard. Are 0 to 15, well welcome to use program to download