用8255,8253,8259实现的具有显示时分秒的电子时钟.

排序（适合新手） 在3000h输入10个数，接着运行，在到3100h看排序结果-order (for newcomers) in the importation of 10 3000h number, and then run in order to see results 3100h

pwm调制，proteus仿真，程序，电路图，全套，有不明白的Q我：64134703-pwm modulation, proteus simulation, procedures, circuit diagrams, complete, and I do not understand Q: 64,134,703

输入50个成绩，然后按学号依次输出排名。-importation of 50 results, then school, followed by the output rankings.

用C++实现银行的模拟-C Bank"s simulation

蜂鸣器在单片机上的应用,汇编语言,附原理图及说明学习文档 蜂鸣器的正极性的一端联接到5V电源上面，另一端联接到三极管的集电极，三极管的基级由单片机的P2.4管脚通过一个与非门来控制， 用户可以通过程序控制P2.4管脚的置低和置高来使蜂鸣器发出声音和关闭。 蜂鸣器的声音大小及音调可以通过调整P2.4管脚的置高时间及输出的波形进行控制，这一点可以在调试程序的时候来试验。-On the buzzer in single-chip applications, assembly language, with a schematic diagram and instructions to study documents the positive polarity of the end of the buzzer connected to the 5V power supply above, the other end connected to the transistor" s collector, the base level by the single-chip transistor Machine P2.4 pin through a NAND gate to control, the user can be programmed to set pin P2.4 low and set high to make the buzzer sound on and off. Buzzer sound size and pitch can be set by adjusting the P2.4 pin of the high time and output waveform control, and this point could be the time to test the debugger.

采用PID方式控制直流无刷电机,可使电机的调速范围扩大一倍以上

拖动鼠标画线，圆，矩形的例子-Drag painting line, circle, rectangle example

这是汇编器的源代码- This is the assembly source code

本指令是一个很好的，希望读者好好享用 正和了arm的全部指令-is a very good Abstract The research and development of a real――time visual obstacle detection system are pre―- sented in the paper．The stereo vision system is realized by using a single camera and the optical and electrical identities of binocular image pair are kept．The image reprojection transformation brings zero disparities for the road surface features and thus facilitate the obstacle detection．The

各种汇编课程设计 对需要课设的 还有练习汇编语言的同学很有帮助哦-Compilation of curriculum design for a variety of courses required for the assembly language practice also very helpful Oh the Student