watchdog

用80c51单片机编写时钟控制程序，断电后丢失。适用于初学者(Write clock with 80c51 microcontroller control program, after power loss. For beginners)

LCD2864显示汉字例程LCD2864显示汉字例程(LCD2864show characterLCD2864show character)

永磁同步电机的无传感器控制仿真模型,仿真结果感觉还不错(PMSM sensorless control simulation model, the simulation results I feel pretty good)

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

说明：  单片机MC9S08AW60脉宽调制 TPM1CH3 LS2亮度控制 KBI SEG控制亮度等级 。本工程为定时器输出PWM波测试工程实例通过对PWM占空比的调节,实现小灯的渐亮的功能,当占空比为100％时再从0％逐渐增加.PWM的周期一定要足够的快,否则其输出电压的波动范围很大,且测不出一个稳定的电压值,这样通过就观察不到小灯渐亮效果. 另外,在改变PWM的周期和占空比之前和之后要分别禁止和使用。(MC9S08AW60 pulse width modulation TPM1CH3 LS2 brightness control KBI SEG brightness level. This project is an example of testing the output PWM wave of the timer. By adjusting the duty ratio of the PWM, the function of the small lamp gradually brightening is realized. When the duty ratio is 100%, the period of the small lamp gradually increases from 0%. The period of the PWM must be fast enough. Otherwise, the fluctuation range of the output voltage is large and a stable voltage value can not be measured, so the effect of the gradual brightening of the small lamp can not be observed. In addition, the period of the PWM is changed. Before and after duty cycle should be prohibited and used separately.)

51单片机摸拟串口,p1.0引脚发送，p1.1引脚接收(51 serial single-chip simulation, p1.0 send pin, p1.1 pin receiver)

一种处理端点效应的程序，镜像延拓，对于处理端点效应有着较好的效果( The end effect of a treatment program, mirror extension, for processing end effect has a better effect)

stm32数组转二进制工具，在Keil下运行 1.输入文件内容必须包含类似于{0xff,0xff}这样的c语言数组格式，才能正常转换。大括号和前导符“x”是必须的。 2.支持8位和16位数据。 3.支持4个字节的长宽信息，方便Image2Lcd程序输出的图片转换成Bin。 4.支持成对“/”符号包含注释信息，若文件内容只有单个“/”,后果自负。 5.支持头四个字节的宽高信息互换存储位置。(stm32 array to binary tools, running in Keil 1 input file must contain similar {0xff, 0xff} c language such array format to normal conversion. Braces and leading character "x" is a must. 2 supports 8-bit and 16-bit data. 3 supports 4-byte length and width information to facilitate Image2Lcd program output image into Bin. 4 support paired "/" symbol contains annotation information, if only a single file contents "/" peril. 5 support the first four bytes wide exchange of information stored in a high position.)

说明：  stm32串口，利用串口收发数据，可以接收和发送从电脑传来的数据(stm32 serial port use the serial port to send and receive data can receive and send data from the computer)

基于51单片机的按键例程，常见问题： 1. 按键无反应 请您确认程序是否下载成功，连线正确无误，确认无误后还是无效果的话，将排线重新插拔下，单片机拿下来重新安装，重启开发板试试！(Key routines based on 51 single chip microcomputer,common problems: 1. Press the key and no response. Please confirm whether the program was downloaded successfully and the connection is correct. If it is still ineffective after confirmation, plug and unplug the cable again, take down the MCU and reinstall it. Restart the development board to try!)