74LS244 done with single

单片机P1口与4个按键连接，用于信号幅度和频率调节操作键。单片机P0、P2.7、P3.6(-WR)与DA0832、2个741(运放)连接构成波形信号输出电路。 编程使波形信号输出电路输出正弦波信号，并且可通过操作键调节信号的幅度和频率。幅度和频率调节级别从0~10，共11个等级。 -Singlechip P1 I connect with the four buttons for the signal amplitude and frequency adjustment operation keys. Singlechip P0, P2.7, P3.6 (-WR) and DA0832, 2 months 741 (operational amplifier) to connect constitute waveform signal output circuit. Programming so that waveform signal output circuit output sine wave signal, and can be operated keys adjust the signal amplitude and frequency. Amplitude and frequency adjustment level from 0 ~ 10, a total of 11 grades.

注册热键，STAITC接收键盘消息，向应用程序发送按键消息、文本-Register hotkey, STAITC receive keyboard message, send keystrokes to the application message, text

单片机播放音乐 通过控制高低电平让蜂鸣器发出不同的声音 做相应的延时实现节拍 开发环境是keil-SCM music by controlling the high-low so that the buzzer sounds different delay accordingly to achieve the beat

我同事做的一个CS5522的51单片机的驱动,用的是89S52,开发环境是KEIL C-my colleagues do a CS5522 51 MCU-driven, with the 89S52. Development environment is KEIL C

AVR简单的串口程序，适合初学者学习，可以直接应用-AVR simple serial program, suitable for beginners to learn, can be applied directly

keil软件指南，对keilc51软件的安装、操作程序进行了详细的调试。对基尔初学者很有帮助

飞思卡尔的编程资料，开发软件的调试，以及智能车路线识别系统文章。 -Freescale" s programming information, development of software debugging, and intelligent vehicle identification system routes the article.

ip2022 再线烧写软件 可以在线读写程序-ip2022 line again burning software can read and write online procedure

CPU调度算法---模拟OS所使用的所有调度算法,包括创建一个kernel,PCB,队列，调度器等。-CPU Scheduler algorithms FCFS SJF Priority This code is a simulation of all the Scheduling algorithms an OS uses. I have tried creating a Kernel, PCB, Queue, Scheduler etc. what all an OS needs to run and execute a piece of code. Right now the code just displays the file given to in the input, If we modify the code so that it can interpret the meaning of the file then it can execute the file and can become a sub OS or VirtualMachine like JVM

为8个数码管有五种模式的闪烁方式 可以通过按键控制的，-to eight digital possession of five patterns of flashing mode can be controlled by buttons,