CPM-DID

说明：  可应用按键实时改变pwm输出占空比，同时有端口进行相应的pwm捕获。相应的端口配置在程序注释处。(It can change the duty cycle of PWM output in real time by using keys, and at the same time, it has ports to capture the corresponding pwm.)

单片机控制密码锁，四位密码，可更改密码。(cipher trunk using AT89C51)

很好的一个永磁同步电机的控制仿真模型，自己的参考。(Good control of a permanent magnet synchronous motor simulation model of their own reference.)

基于msp430驱动ADC122s021的代码(Code driven ADC122s021 based on MSP430)

xl系列单片机实验仪演示程序 LCD1602显示 步进电机控制器速度方向圈数可调 LCD1602显示 步进电机控制器速度方向圈数可调 K1－启动与停止步进电机运行 K2－设定步进电机运行圈数 （1-20圈） K3－设定步进电机转动方向 K4－设定步进电机运行速度 步进电机的转速控制分16档，数字越小，转速越快。 7.5度步进电机；周期7.5×4=30度，电机转动一圈需12个周期 资源：p1.0-p1.3接反向器74ls14，输出后接步进电机 p3.7接小喇叭提供按键音, p1.4-p1.7接端口按键：lcd1602插入实验仪(xl Series Singlechip Experiment LCD1602 demo program shows the direction of stepper motor speed controller circle shows the number of adjustable LCD1602 direction stepper motor controller lap speed of a few adjustable K1-start and stop the stepper motor running K2-setting step motor running a few laps (1-20 laps) K3-set stepper motor rotation direction of K4-setting speed of stepper motor stepper motor speed control minutes 16 stalls, the number of smaller, faster the speed. 7.5 degree stepper motor cycle of 7.5 × 4 = 30 degrees, rotating electric lap 12 cycles required resources: p1.0-p1.3 then reverse browser 74ls14, followed by stepper motor output p3.7 then provide a small speaker key tone, p1.4-p1.7 port access keys: lcd1602 insert Tester)

I2C总线控制协议，基于C51的程序，可以对E2prom读写，keil51调试通过(I2C Protocal)

利用片内定时器/计数器来进行计时时间间隔1S(Chip timer/counter to the the timing time interval 1S)

三星S3C2440板子中配置时钟的程序，ARM ADS开发工具，初学的时候很实用。(Samsung S3C2440 board configured clock procedures, ARM ADS development tools, a novice when it is practical.)

STM32的I2S编程，开发板带的程序，有做I2S音频这块的同学可以看看(STM32 I2S programming, development board with the program, has done I2S audio piece classmates can look)

使用stm32开发板做的pwm输出控制buck电路，反馈使用PID算法，实现闭环控制(The use of STM32 development board to do PWM output control buck circuit, feedback using PID algorithm to achieve closed-loop control)