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Description: 模拟MODBUS主站、从站，包括TCP
• mod_RSsim76exe.zip - Demo executable v7.6
• mod_RSsim7_4b.zip - mode_RsSim V 7.4b source
• mylib.zip - Source : (library needed to compile)
-Simulator for Modbus slaves over RS232/RS485 and TCP/IP amongst other protocols.
• mod_RSsim76exe.zip- Demo executable v7.6
• mod_RSsim7_4b.zip- mode_RsSim V 7.4b source
• mylib.zip- Source : (library needed to compile)
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Size: 857088 |
Author: hemu |
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Description: Timer，内部定时器，有Timer0、Timer1、Timer2等。
USART：Universal Synchronous Asynchronous Receiver Transmitter，同步/异步串行传输，如RS232、RS485等。
MSSP；Master Synchronous Serial Port，两线式(I2C)与三线式(SPI)标准同步串行传输协定，常用于EEPROM内存资料的烧录与读取，或是与其它集成电路沟通与联系，形成多芯片网络。
2. PIC16F877基本电路
2.1 PIC振荡频率电路
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Size: 16384 |
Author: xinyujun |
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Description: 工程名称：串口+485发送程序
控 制 器： ATmega16
晶 振： 8.0000Mhz
创建时间：2009年2月18日
说 明：CPU通过串口接RS485发送数据，终端PC机通过
RS485转RS232转换器接入PC机，使用串口调试
助手发送数据并接收数据。
端口配置：
CPU RS485
RXD RO
TXD DI
PD6 DE,/RE-Project Name: serial port+485 sending program controller: ATmega16 Crystal: 8.0000Mhz Created: February 18, 2009 Description: CPU to send data through the RS485 serial port access, terminal PC, transferred via RS485 Converter RS232 access to PC machine, use the serial port debug helper to send data and receive data. Port configuration: CPU RS485 RXD RO TXD DI PD6 DE,/RE
Platform: |
Size: 1024 |
Author: liujianhu |
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Description: Its a Lamda Power Supply. Here each program illustrated how to control the equipment remotely through a RS232/RS485 Cable from a remote system. These programs are developed in LabVIEW 7.1. LabVIEW is a Product & Trademark of National Instruments(NI).
To control output voltage
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Size: 454656 |
Author: Majo John |
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Description: Its a Lamda Power Supply. Here each program illustrated how to control the equipment remotely through a RS232/RS485 Cable from a remote system. These programs are developed in LabVIEW 7.1. LabVIEW is a Product & Trademark of National Instruments(NI).To control over voltage-Its a Lamda Power Supply. Here each program illustrated how to control the equipment remotely through a RS232/RS485 Cable from a remote system. These programs are developed in LabVIEW 7.1. LabVIEW is a Product & Trademark of National Instruments(NI).To control over voltage..
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Size: 227328 |
Author: Majo John |
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Description: vxworks下的通用串口测试程序，可以测试RS232，RS485。-general uart test code for vxworks
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Size: 3072 |
Author: 曹小雨 |
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Description: Simply ModBus is OCX modbus communication protocol with RS232 / RS485-Simply ModBus is OCX modbus communication protocol with RS232/RS485
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Size: 1734656 |
Author: Donald Bebek |
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Description: 本程序是一个AVR单片机通信小程序（其他单片机只要修改一下初始化即可），解压后用ICC软件打开项目即可编译，用到了RS232和RS485两种通信方式，两个串口，RS485走的9位数据位。很小的一个系统程序，只有三个C文件和一个H头文件。很适合在校学生和刚开始接触实际设计的新人。-This program is a small communication program AVR microcontroller (other microcontroller initialization as long as you can change it), with the ICC after decompression software to open the project can be compiled, use the RS232 and RS485 two kinds of means of communication, two serial ports, RS485 to go 9-bit data bits. A very small system program, only the three C files and an H header files. Very suitable for school students and the beginning of the actual design of the new contacts.
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Size: 40960 |
Author: rocky |
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Description: 程序运行环境：
下位机：dsPIC30F6014A
上位机：串口调试助手
RS485芯片：MAX489
通信方式：PC机 --- RS232转RS485 --- RS485接口 --- dsPIC30F6014A
通信内容：PC机发送一串字符（约定以“回车”结束）给下位机，下位机接收后不做任何处理返回给PC。-Environment for running programs: The next bit machine: dsPIC30F6014A Host Computer: Serial RS485 chip debugging aids: MAX489 means of communication: PC,--- RS232 switch to RS485--- RS485 interface--- dsPIC30F6014A the content of communications: PC, send a string of characters (have agreed to " Enter" end) to the next crew, the next crew, after receiving no treatment returned to the PC.
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Size: 1024 |
Author: 轩零 |
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Description: pelco 矩阵控制,通过rs485/rs232发送控制指令，控制摄像机，监视器的切换-pelco matrix control
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Size: 439296 |
Author: mfc |
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Description: rs232与rs485通讯介绍，挺详细的，希望大家收藏-rs232 and rs485 communications description
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Size: 104448 |
Author: wang |
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Description: pic18f4520使用uart做rs232或rs485與電腦pc做連線資料傳輸
內容簡單 從IC腳位設定到啟動UART功能與接收中斷和傳送資料-pic18f4520 use uart do rs232 or rs485 to do to connect with computer pc data transfer is simple and from the IC pin set to start the UART interrupt function and to receive and transmit data
Platform: |
Size: 35840 |
Author: vincent |
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Description: Designing Embedded Hardware(pic,avr,68h,msp430..) about IrDA,USB,Network,RS232,RS485
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Size: 4526080 |
Author: huynh lam |
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Description: RS485转RS232电路原理图及PCB图-RS232 RS485 switch PCB circuit diagram and map
Platform: |
Size: 558080 |
Author: wty |
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Description: 本书详细介绍了单片机实用接口子程序，并给出了c语言程序。接口类型有RS232、RS485、CAN总线、I2C总线、SPI总线、键盘接口等-This book details the practical interface subroutine SCM, and gives the c language program. Interface types are RS232, RS485, CAN bus, I2C bus, SPI bus, keyboard interface
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Size: 27260928 |
Author: huanghf |
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Description: 安防专用 三维键盘中文使用说明书
键盘用于控制高速球和云台，是监控系统中人机对话的主要设备，它可作为主控键盘，也可作为分控
键盘。主要特点：
1. 液晶显示。用液晶显示板作为人机操作的界面具有直观、方便、易懂、信息量大等优点。
2. 比例摇杆。使用比例摇杆操作高速球和云台，手感好，控制灵活，使用方便。
3. 键盘锁定功能可避免其他非授权用户操作键盘，安全性高。
4. 提供RS485 控制输出信号，同时提供标准的RS232 控制信号，方便近距离和远程设备的控制。-Security-specific three-dimensional keyboard manual keyboard Chinese high-speed ball and head for controlling, monitoring system is the main equipment for man-machine dialogue, it can be used as master keyboard can be used as sub-control keyboard. Main features: 1. LCD display. Liquid crystal display panel as intuitive man-machine interface, convenient, easy to understand, informative and so on. 2. Ratio rocker. The proportion of high-speed operation using the joystick, and head the ball, feel good, flexible control and easy to use. 3. Keypad lock function to prevent other non-authorized users can operate the keyboard, safe. 4. To provide RS485 control output signal, while providing a standard RS232 control signal to facilitate the close and remote equipment control.
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Size: 162816 |
Author: amwadwold |
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Description: 基于2812实现rs485和rs232的串口通信源程序，欢迎下载-Based on 2812 to achieve the serial communication rs485 and rs232 source code, please download
Platform: |
Size: 70656 |
Author: phan02 |
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Description: 总所周之，利用串口进行数据通讯在在通讯通讯领域重占有着重要的地位。利用RS232-RS485进行数据信号的采集和传递是VC编程的又一大热点。串口通讯在通讯软件重有着十分广泛的应用。如电话、传真、视频和各种控制等。在各种开发工具中间，VC由于功能强大和灵活，同时也得到了Microsoft的最大支持，所以在一般进行涉及硬件操作的通讯编程重，大都推荐使用VC作为开发工具。然而工业控制串口通讯这个又不同于一般的串口通讯程序，因为控制外围设备传送的大都是十六进制数据（BYTE类型），所以，为了提高程序的运行稳定性，我们在编写程序进行通讯时可以不考虑传送BYTE类型数据的工作。-Abstract：Described serial communication protocol of OM RON Series PLC in details and achieves communication between
PLC and PC by VC++6．0 development system in windows environment．
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Size: 141312 |
Author: 王建 |
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Description: uart通信串口调试工具，目前较为常用的串口有9针串口（DB9）和25针串口（DB25），通信距离较近时(<12m)，可以用电缆线直接连接标准RS232端口(RS422,RS485较远)，若距离较远，需附加调制解调器（MODEM）。最为简单且常用的是三线制接法，即地、接收数据和发送数据三脚相连，本文只涉及到最为基本的接法，且直接用RS232相连。
-uart communication serial debugging tools
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Size: 148480 |
Author: lww |
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Description: 介绍了基于RS485实现的PC机与单片机串行通信控制系统．通过RS485／RS232信号转换电路，PC机根据下位机的地址不间断采集下位机的数据，-Introduced a PC-based implementation and RS485 Serial Communication control system. Through the RS485/RS232 signal converter circuit, PC machine according to the following address slave slave under continuous collection of data
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Size: 177152 |
Author: 张仪 |
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