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Description: 本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。-the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the
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Size: 196608 |
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Description: Features
• Compatible with MCS-51® Products
• 8K Bytes of In-System Programmable (ISP) Flash Memory
– Endurance: 1000 Write/Erase Cycles
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• Three-level Program Memory Lock
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• Eight Interrupt Sources
• Full Duplex UART Serial Channel
• Low-power Idle and Power-down Modes
• Interrupt Recovery from Power-down Mode
• Watchdog Timer
• Dual Data Pointer
• Power-off Flag-Features
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Size: 212992 |
Author: haojun |
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Description: at89s52中文资料，包括芯片说明等。-at89s52 Chinese data, including chip descriptions.
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Size: 311296 |
Author: Frank |
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Description: 基于AT89S52的简易逻辑分析仪！IDE:VB6.0
通过单片机与电脑的串口链接将数据发送至电脑，由电脑分析逻辑波形！可保存波形数据，以备下此分析使用。-Simple logic analyzer! IDE : VB6.0 through SCM and computer serial data link will be sent to a computer by computer analysis logic waveform! Kept waveform data for use under this analysis.
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Size: 668672 |
Author: zzwgdut |
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Description: 键盘输入程序,很好用得,使用AT89S52单片机-keyboard input program, easy to use, use SCM AT89S52
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Size: 2048 |
Author: chen |
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Description: 酷鱼下载线源程序，可以在线烧写芯片有AT89LS51,AT89S51,AT89LS52,AT89S52.
2. AT90CAN128，AT90S1200，AT90S2313，AT90S2323，AT90LS2323，AT90S2333，
AT90LS2333，AT90S2343，AT90LS2343，AT90S4414，AT90S4433，AT90LS4433，
AT90S4434，AT90LS4434，AT90S8515，AT90S8535，AT90LS8535
3. ATMEGA103，ATMEGA103L， ATMEGA128， ATMEGA128L， ATMEGA16，
ATMEGA16L，ATMEGA161，ATMEGA161L，ATMEGA162，ATMEGA162V，
ATMEGA163，ATMEGA163L，ATMEGA168，ATMEGA169，ATMEGA169V，
ATMEGA32 ， ATMEGA32L， ATMEGA323 ， ATMEGA323L， ATMEGA48 ，
ATMEGA64 ， ATMEGA64L ， ATMEGA8,ATMEAG8L ， ATMEGA8515 ，
ATMEGA8515L，ATMEGA8535，ATMEGA8535L，ATMEGA88
4. ATTINY12，ATTINY12L，ATTINY13，ATTINY15L，ATTINY2313，ATTINY2313V，
ATTINY26，ATTINY26L
PIC 系列可ISP 单片机
5. PIC16F870，PIC16F871，PIC16F872，PIC16F873 ，PIC16F873A，PIC16F874，
PIC16F874A，PIC16F876，PIC16F876A，PIC16F877，PIC16F877A-Kuyu downloaded line source, the online burning chips are AT89LS51, minicomputer, AT89LS52, AT89S52. 2. AT90CAN128, AT90S1200. AT90S2313, AT90S2323, AT90LS2323. AT90S2333, AT90LS2333, AT90S2343. AT90LS2343, AT90S4414, AT90S4433. AT90LS4433, AT90S4434, AT90LS4434. AT90S8515, AT90S8535. AT90LS8535 3. ATMEGA103, ATMEGA103L. ATMEGA128, ATMEGA128L, ATMEGA16, ATMEGA16L. ATMEGA161, ATMEGA161L, ATMEGA162. ATMEGA162V, ATMEGA163, ATMEGA163L. ATMEGA168, ATMEGA169, ATMEGA169V, ATMEGA32. ATMEGA32L, ATMEGA323, ATMEGA323L, ATMEGA48. ATMEGA64, ATMEGA64L, ATMEGA8 Single, ATMEAG8L. ATMEGA8515, ATMEGA8515L, ATMEGA8535. ATMEGA8535L, ATMEGA88 4. ATTINY12. ATTINY12L, ATTINY13, ATTINY15L, ATTINY2313. ATTINY2313V, ATTINY26. ATTINY26L PIC microcontroller ISP Series 5. PIC16F870. PIC16F871, PIC16F872, PIC16F873. PI
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Size: 498688 |
Author: 沈昌逸 |
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Description: ISP 并口下载工具，支持AVr及at89s52系列单片机。-ISP download tools, and support AVr at89s52 Series MCU.
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Size: 594944 |
Author: 阿伟 |
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Description: 通过AT89S52的I/O口模拟IIC接口,读写控制AT24C256,适用于AT24C64、AT24C256、At24C512-AT89S52 through the I/O interface IIC mouth simulation, control AT24C256 Applications read and write, apply to the AT24C64, AT24C256 Applications, At24C512
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Size: 32768 |
Author: 谢琴 |
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Description: 本文介绍了一种基于DS18B20的数字温度计设计方案。方案利用AT89S52单片机控制DS18B20进行数据采集并由HS1602液晶显示模块显示结果，另外，采集结果可由RS-232-C接口送入计算机显示并存储。按键控制实现过界报警温度设定和实时监控，利用AT24C08芯片进行存储，实现温度测量存储与再现。-This paper presents a DS18B20 based on the digital thermometer design. Program uses AT89S52 DS18B20 MCU control data acquisition with a LCD HS1602 said modules display the results addition, the acquisition results from RS-232-C interface into the computer display and storage. Achieving control over key sectors temperature alarm settings and real-time monitoring, the use of AT24C08 chip memory, Temperature measurement storage and retrieval.
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Size: 293888 |
Author: 王小彬 |
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Description: 关于AT89S52的源代码，大家看一看，有利于你们的初始化工作。-AT89S52 on the source code, we can see, is conducive to your initialization.
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Size: 1024 |
Author: 温达 |
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Description: 由at89s52单片机为基础的数码管控制程序，并用两个键来选择控制-by at89s52 microcontroller-based digital control procedures, and use of two key to select control
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Size: 10240 |
Author: 孟兵 |
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Description: LED点阵文字显示屏驱动程序,单片机为AT89S52-LED dot-matrix text display driver, MCU AT89S52
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Size: 1024 |
Author: 叶锐 |
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Description: 采用AT89S52的6位LED动态扫描（共阴，带反相驱动），P1接数据端，P3接LED的公共端。-used AT89S52 the six LED dynamic scan (a total of overcast, with RP-driven), P1-data access, P3 LED public access terminal.
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Size: 1024 |
Author: |
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Description: RFID实现代码，可以通过iic接口操作，通过这个程序可以快速完成自己项目的开发。
Description: AT89S52 Firmware for HY502 Serial Reader
This project is designed for HY502XX OSC use 11.0592MHz crystal. -RFID codes, can iic interface operation, Through this procedure can quickly complete its project development. Description : AT89S52 Firmware for HY502 Serial Reader This p roject is designed for use HY502XX OSC 11.0592M Hz crystal.
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Size: 47104 |
Author: 罗小兵 |
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Description: 本文主要介绍了一种基于PC机控制的以单片机AT89S52为核心的LED显示系统。用户可以根据需要把要显示的内容通过本系统所配带的PC机软件，直接重计算机下载到LED显示系统，同时可以设置显示系统显示的颜色、显示内容的移动方式、移动速度等。本系统主要应用于厅堂、车站、广场等公共场所；并详细介绍了在硬件上和软件-This paper introduces a PC-based control of a microcontroller core of AT89S52 LED significantly said system. Users may need to show that the contents of the passage of the system equipped with PC software, re-direct the computer to download LED display system, which can be set up display system shows color, Mobile content, mobile speed. The system is mainly used in sitting rooms and stations, squares and other public places; And gave details of the hardware and software
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Size: 1487872 |
Author: www |
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Description: 本文主要介绍了一种基于PC机控制的以单片机AT89S52为核心的LED显示系统。用户可以根据需要把要显示的内容通过本系统所配带的PC机软件，直接重计算机下载到LED显示系统，同时可以设置显示系统显示的颜色、显示内容的移动方式、移动速度等。本系统主要应用于厅堂、车站、广场等公共场所；并详细介绍了在硬件上和软件-This paper introduces a PC-based control of a microcontroller core of AT89S52 LED significantly said system. Users may need to show that the contents of the passage of the system equipped with PC software, re-direct the computer to download LED display system, which can be set up display system shows color, Mobile content, mobile speed. The system is mainly used in sitting rooms and stations, squares and other public places; And gave details of the hardware and software
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Size: 21504 |
Author: www |
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Description: 利用光敏二极管作为传感器，AT89S52读取采样信号，在2位LED上面显示被测药剂浓度-using photodiode as a sensor, signal sampling AT89S52 read, In two LED above shows the measured concentration of Pharmacy
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Size: 2048 |
Author: 匡林郎 |
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Description: AT89S52原理图AT89S52是一种低功耗、高性能CMOS8位微控制器，具有8K 在系统可编程 Flash 存储器。使用 Atmel 公司高密度非
易失性存储器技术制造，与工业 80C51 产品指令和引脚完全兼容。片上Flash允许程序储器在系统可编程，亦适于常规编程器。在单芯片上，拥有灵巧的 8 位 CPU 和在系统可编程Flash，使得 AT89S52为众多嵌入式控制应用系统提供高灵活、超有效的解决方案。 -AT89S52 AT89S52 diagram is a low-power, CMOS8 high-performance micro-controller with 8 K in-system programmable Flash memory. Atmel companies use high-density nonvolatile memory technology manufacturing, 80C51 products and industrial orders and pin compatibility. On-chip Flash storage procedures allow for in-system programmable, also suitable for conventional programming device. In a single chip, with the magic of eight CPU and in-system programmable Flash. AT89S52 makes for many embedded control applications provide flexible, ultra-effective solutions.
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Size: 35840 |
Author: hm |
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Description: 提供时钟芯片1302及温度传感器18B20C写的原程序51单片机电路图-clock chip for 1302 and temperature sensor 18B20C write the original program 51 microcontroller circuit
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Size: 13312 |
Author: LINI |
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Description: 本设计采用实验专用小车，以AT89S52单片机为控制核心，加以超声波测距仪、探测电路、通信部分、液晶显示、电源电路以及其他电路构成。系统由89S52通过IO口控制小车的前进后退以及转向。超声波测距仪用来测量小车在封闭的场地里的具体坐标。探测电路用来探测硬币，经通信系统将第一辆小车测得的硬币位置传给第二辆小车,后一辆小车将根据收到的数据自动找到该硬币。同时本系统将测得各项数据通过液晶显示出来。-the experimental design using special trolley to AT89S52 microcontroller for the control of the core, Ultrasonic Range Finder to be detecting circuits, communications, LCD display, power supply circuits and other circuits. System consists of 89 S52 IO population control through the car back and forward to. Ultrasonic range finder is used to measure car in a closed space, the specific coordinates. Detection circuit used for the detection of coins, the communications system will be the first one car at a location coins pass second car, After a car will be based on the receipt of data automatically find the coins. In addition, the system will be measured through data LCD out.
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Size: 1184768 |
Author: 江方洪 |
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