说明：之前发过一个ASM板本，这个是C语言版本。维修扶梯时从单片机At89C51内读出来的，闲着没事对其进行反汇编，并改写成C语言。显示采用了双色的8X8点阵，扶梯停止时显示红色的X，扶梯运行时显示l绿色移动的->。附有PROTEUS仿真文件，可以直接模拟运行显示。
This is a version of ASC. Maintenance escalator from the microcontroller AT89C51 read out, idle to its disassembly, and rewritten to C language. The display adopts double color 8x8 dot matrix, red x is displayed when the escalator is stopped, and l green moving - >, when the escalator is running. Proteus simulation file is attached, which can directly simulate the operation display. (2020-11-24, C51, 57KB, 下载1次)
基于51单片机的锁相环频率合成器的设计。使用PLL集成芯片CD4046，可编程分频芯片CD4522（同MC14522），使用LCD1602显示，频率由按键输入。标准输入信号为1khz方波。
Design of PLL Frequency Synthesizer Based on 51 single chip microcomputer. Using PLL integrated chip CD4046, programmable frequency division chip CD4522 (MC14522), using LCD1602 display, frequency by keystroke. The standard input signal is 1kHz square wave. (2018-04-26, C51, 52KB, 下载5次)
16层RGB广州塔，每层16个led灯组成，色彩十分绚烂
16 layers of RGB Canton Tower, each layer of 16 LED lights, the color is very gorgeous (2017-11-11, C51, 22KB, 下载15次)
OBD是英文On-Board Diagnostic的缩写，中文翻译为“车载诊断系统”。这个系统随时监控发动机的运行状况和尾气后处理系统的工作状态，一旦发现有可能引起排放超标的情况，会马上发出警示。当系统出现故障时，故障灯(MIL)或检查发动机(Check Engine)警告灯亮，同时OBD系统会将故障信息存入存储器，通过标准的诊断仪器和诊断接口可以以故障码的形式读取相关信息。根据故障码的提示，维修人员能迅速准确地确定故障的性质和部位。
OBD is the abbreviation of On-Board Diagnostic in English, and the Chinese translation is "on-board diagnostic system"". The system monitors the operating conditions of the engine and the working state of the exhaust gas treatment system at any time. Once it is found that it may cause excessive discharge, a warning will be issued immediately. When the system fails, the fault lamp (MIL) or check engine (Check Engine) warning lights and OBD system fault information will be stored in the memory, through diagnostic instruments and diagnostic standard interface can read the relevant information to the fault code form. According to the prompt of the fault code, the maintenance personnel can quickly and accurately determine the nature and location of the fault. (2017-09-28, C51, 2109KB, 下载29次)
熙熙攘攘的街头，人流车水有条不紊地行进着，靠的是交通灯的指挥作用，交通灯的绿、红、黄灯交替工作着，指挥着交通，维持着秩序。
课程设计采用单片机AT89C51为中心器件来设计交通灯，从而模拟十字路口交通灯的各种状态显示。设计由单片机AT89C51，LED八位数码显示管等组成。软件上采用C语言编程实现。主要编写了主程序，数码管显示程序和延时程序，经模拟，实现交通灯的功能。操作简单，设计简单易懂，但由于采用的是纯延时，因此会有一定的误差，但不影响总体效果。
在遇紧急情况时，可通过按键控制交通灯全亮红灯，从而解决紧急情况的交通问题。
Bustling streets, traffic cars, water methodically moving, relying on the command of the traffic lights, traffic lights green, red and yellow lights alternating work, directing traffic, maintaining order.
The curriculum design uses the single chip microcomputer AT89C51 as the central device to design the traffic lights, thus simulates each kind of status display of the intersection traffic lights. Design by SCM, AT89C51, LED, eight bit digital display tube and so on. The software is programmed with C language. Mainly written in the main program, digital display procedures and delay procedures, by simulation, to achieve traffic lights function. The operation is simple, the design is simple and easy to understand, but because of the adoption of pure delay, there will be some errors, but it does not affect the overall effect.
In case of emergency, the traffic lights can be controlled by a button to complete the red light, thus solving the traffic problems in an emergency. (2017-08-04, C51, 54KB, 下载2次)
这是一本关于Intel 80C51 以及广大的51 系列单片机的书这本书介绍给读者一些
新的技术使你的8051 工程和开发过程变得简单请注意这本书的目的可不是教你各种
8051 嵌入式系统的解决方法
This is a book about Intel, 80C51 and the vast 51 series of single-chip microcomputer, this book introduces some readers
The new technology makes your 8051 project and development process simple. Please note that the purpose of this book is not to teach you all kinds of things
8051 solutions for embedded systems (2017-07-24, C51, 929KB, 下载1次)
四引脚（VCC/GND/SCL/SDA）iic总线oled屏幕驱动程序，51系列单片机可用（直接include即可）
Four pin (VCC/GND/SCL/SDA) IIC bus OLED screen driver, 51 series microcontroller can be used (direct include can) (2017-07-04, C51, 5KB, 下载21次)
LCD12864
keilc51编程AMPIRE12864点阵式LCD（图3-17）是一种图形点阵液晶显示器,它主要由行驱动器/列驱动器及128×64全点阵液晶显示器组成。
The system software first displays the prompt and the default parameter on the LCD, at this time may use the key to revise each parameter, starts the wave form by the button, produces through the digital to analog converter, and displays the waveform and the parameter in the LCD. (2017-06-30, C51, 2KB, 下载1次)
使用模块化编程思路，所有模块皆可独立使用（但是占用到系统硬件资源则需要改动）上机测试可行，使用ds18b20采集温度数据并且送至电机处改变其转速以及显示当前温度与转速等级。
The use of modular programming ideas, all modules can be used independently (but the use of hardware resources to the system need to be changed) test is feasible, using DS18B20 temperature data collected and sent to the motor to change its speed and display the current temperature and speed rating. (2017-06-10, C51, 7KB, 下载1次)
51单片机数码管编程，使用一个双字数码管和三个按键，三个按键分别表示开始，暂停和停止功能：按下开始按键后，数码管开始计时；按下暂停按键后，数码管暂停计时，如果再次按下开始按键，数码管继续计时；按下停止按键，计时停止，数码管上的数字清零。
51 single-chip digital control, using a double word digital tube and three buttons, three buttons that start, pause and stop function: press the start button, the digital tube starts timing press the pause button, the digital tube pause time , If you press the start button again, the digital tube continues to count press the stop button, stop the clock, digital control on the number cleared. (2017-06-02, C51, 1KB, 下载3次)
一种 SSI 光电编码器数据并行采集设计方法
在光电编码器上
得到了越来越广泛的应用，然而大多数计算机和处理器上没有提供SSI接口，这在一定程度上限
制了SSI接口光电编码器的推广和应用。基于复杂可编程逻辑器件（ CPLD）开发的SSI接口模块
SSI208P，实现了SSI接口编码器数据的高速并行采集。本文对SSI208P模块进行了详细介绍，并
给出了硬件设计和软件设计思路及实现方法。
A design method for data parallel acquisition of SSI photoelectric encoder
It has been widely used in the photoelectric encoder. However, most of the computers and processors do not provide SSI interface, which limits the popularization and application of SSI interface photoelectric encoder to some extent. Based on the complex programmable logic device (CPLD) development of the SSI interface module SSI208P, SSI interface encoder data to achieve high-speed parallel acquisition. In this paper, the SSI208P module is introduced in detail, and the hardware design and software design ideas and implementation methods are given. (2017-02-14, C51, 143KB, 下载6次)
本书以最新流行的不需要外部晶振与复位电路的可仿真的高速 STC15 系列单片机为核心，详细介绍了
单片机内部功能模块，比如定时器、中断、串口、SPI 接口、片内比较器、ADC 转换器、可编程计数器阵列
(CCP/PCA/PWM)等。每个重要知识点都有简短精炼的实例作验证，然后就是单片机常用外围接口的介绍与
STC15 系列单片机的实际产品运用实例分析。另外对单片机开发必须掌握的 C 语言基础知识与 Keil 开发环
境也作了较为详细的介绍，对于没有学习过 C 语言的读者通过本书也能轻松进入以 C 语言开发单片机的学
习状态。
英语 简体中文 繁体中文
Book with the latest does not require an external crystal oscillator and reset circuit simulation of high-speed STC15 series SCM as the core, introduced
Monolithic integrated circuit internal functional modules, such as timers, interrupts, serial port chip comparators, ADC, SPI interface, converters, programmable counter array
(CCP/PCA/PWM) and so on. Each important point is a short refining instance validation, and introduction of common peripheral interface is a single-chip microcomputer
STC15 series monolithic integrated circuit the actual product use case analysis. Additionally to the monolithic integrated circuit development must grasp the basic knowledge of c language with the Keil development central
Borders also made a more detailed introduction, for readers without learning c language this book can easily enter in c language development of single-chip microcomputer
Learning State. (2016-08-18, C51, 2356KB, 下载11次)
文章主要介绍了利用单片机和变频器之间的通信实现多台电机在自动化生产流水线中的同步控制。描述了控制的硬件配置和软件编程。采用A T89S51 单片机为控制器、国产佳灵J P6C 型变频器为执行器来控制电机,在实际应用中能够很好地满足生产的需要。
This paper mainly introduces the realization of synchronous control of multi motor in automatic production line by using the communication between SCM and inverter. The hardware configuration and software programming are described. The T89S51 J microcontroller is used as the controller and the domestic good spirit P6C A converter is used to control the motor, which can well meet the needs of production in the practical application. (2016-07-06, C51, 181KB, 下载1次)
系统电路由时钟模块、主控模块、键盘及显示模块、电源模块组成。实时时钟采用DS1302实现年、月、日、时、分、秒、星期等时间信息的采集及闹钟功能。这样设计的结果使电路结构十分简洁，各种要求能完全保证，使系统电路的稳定性得到提高。同时，它采用C语言对系统的各功能模块进行编程实现,并且系统具有键盘控制功能，方便校对时间。
System circuit by the clock module, main control module, the keyboard and display module, power supply module. Real-time clock uses DS1302 achieve the year, month, day, hour, minute, second acquisition and alarm clock function, time and other information of the week. The results of this design the circuit structure is very simple, the various requirements can be guaranteed and the stability of the system circuit is improved. At the same time, it uses C language function of each module of the system can be programmed to achieve, and the system has a keyboard control function to facilitate checking the time. (2016-06-25, C51, 217KB, 下载3次)
采用Atmel公司的AT89S52为核心，实现PC机与单片机系统之间的数据通信。单片机系统采集温度，将数据通过串口将数据传送至PC机，PC机上实现温度显示。用MAX232芯片完成单片机TTL电平到RS-232双向电平的转换 ；用46的矩阵式键盘完成所要显示的数据发送；用LED七段数码管显示接收和发送的数据。在软件设计方面，PC机采用VB或者VC语言编程，使用通信控件来实现串行口收发数据；单片机方面用中断方式完成数据的接收和发送。
Adopts AT89S52 as the core of Atmel company, realize the data communication between PC and single chip microcomputer system.SCM system to collect temperature, the data via a serial port to transfer data to PC, PC to realize the temperature display.Complete the single chip microcomputer with MAX232 chip TTL level to the RS- 232 two-way level conversion With 46 matrix keyboard to complete to display the data sent With seven segment digital tube LED display to send and receive data.In the aspect of software design, the PC using VB or VC programming language, USES the communication control to realize the serial port to send and receive data Single chip microcomputer aspects complete data receiving and sending in interrupt mode. (2016-05-07, C51, 24146KB, 下载3次)