This is one of the PIC16F877 microcontroller and serial communication program

利用89c51和8253可以测速，经初步测试可以通过-89c51 and 8253 can use guns, as a preliminary test can be

实现数码管的循环计数，数码管接法为共阴级接法。-To achieve the cycle count of the digital control, digital control connection for a total of Yin-class connection.

关于嵌入式PS2键盘的原理图，基于51单片机的工控键盘。很实用，包括程序，基于Keil的软件程序-On the embedded PS2 keyboard schematics, single-chip microcomputer-based industrial control keyboard 51. Very practical, including the procedures, the software program based on the Keil

C8051F120单片机TCP协议栈,主体眶架,从美国人LIB库中导出-C8051F120 single-chip TCP protocol stack, the main orbital plane, from the American Library LIB Export

ocmj2x8c lcd显示的测试程序以及并口的应用程序示例-ocmj2x8c lcd display test procedures, as well as examples of parallel applications

本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。本系统实用性强、操作简单、扩展功能强。 -The system uses MSC-51 series single-chip ATSC51 and programmable parallel I/O interface chip 8255A-centric device designed to control traffic lights, can be achieved in accordance with the actual traffic flow through the P1 port 8051 chip set red, green fuel Liang function of time traffic light cycle, the countdown five seconds left when the yellow light flashing warning (traffic lights through the PA output signal indicates the time directly through the PC port output 8255 to double-digits) vehicle alarm闯红灯 green time traffic flow can be detected through a double-digital display. The system practical, simple and strong extensions.

51单片机程序，12864显示程序，可显示汉字，图像-51 SCM procedures, 12864 display program can display Chinese characters, images

单片机的系统的开发中对初学者，有很大的帮助，特别是在电子竞赛中应用。-SCM system development for beginners, will be very helpful, especially in the application of electronic competition.

CodevisionAVR 开发环境。 用AVR控制TI/Chipcon非常常用的CC1000射频收发芯片。 -CodevisionAVR development environment. AVR control with TI/Chipcon CC1000 very common RF transceiver chip.

Atmel arm7有关USB应用的实例,可在IAR上面直接运行-Atmel arm7 Examples of applications on the USB can be run directly above in the IAR