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Description: 单片机RS232/RS485串行发送实验（双机通讯）。
实验步骤：
（1），准备两台598K实验机，确定1号机为发送，2号机为接收；
（2），当作RS232接口实验时，1号机和2号机的P3.0和P3.1交叉相连，且两机共地；
（3），当作RS485接口实验时，1号机和2号机的A、B作对应连接，同时1,2号机的R/TEN接P1.0, P3.0接R0, P3.1接DI。
（4），先运行2号机，键入[27]-->[EV]使2号机处于接收状态P。，后运行1号机[26]-->[EV]使1号机处于发送状态,P。会闪烁，在1号机键盘上按动数字键，在2号机的数码管上应显示对应的数字键值。
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Size: 4601 |
Author: 李凯 |
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Description: 串口调试助手,调RS232,RS485必备武器-serial debugging assistant-RS232, RS485 essential weapons
Platform: |
Size: 116991 |
Author: 沈忠亦 |
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Description: 232和485的接口转换介绍-232 and 485 on the Interface Converter
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Size: 1268189 |
Author: 陈永胜 |
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Description: 仿真标准串口，用于升级原串口外围设备，或者通过USB 增加额外串口。
● 计算机端Windows 操作系统下的串口应用程序完全兼容，无需修改。
● 硬件全双工串口，内置收发缓冲区，支持通讯波特率50bps～2Mbps。
● 支持5、6、7 或者8 个数据位，支持奇校验、偶校验、空白、标志以及无校验。
● 支持串口发送使能、串口接收就绪等传输速率控制信号和MODEM 联络信号。
异步串口/RS232/RS485/RS422
转换并口打印机为USB 打印机
EPP 并口和MEM 并口
常用的2 线和4 线同步串口
DD+
计算机
或者
其它
USB 主机
CH341
转接芯片
CH341 中文手册（一） ２
● 通过外加电平转换器件，提供RS232、RS485、RS422 等接口。
● 支持以标准的串口通讯方式间接地访问CH341 外挂的串行EEPROM 存储器。
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Size: 633033 |
Author: 张哲 |
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Description: atmega32 和RS485的通讯，已经在电路板上测试通过，RS232相对简单一点，RS485需要对控制收发信号处理一下，并且需要RS232转RS485工具来验证收发是否正确
Platform: |
Size: 18556 |
Author: zhuxxingwang |
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Description: 基于51单片机，实现RS232和RS485的双机通讯，内附详细说明！
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Size: 1054894 |
Author: yj |
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Description: 用MEGA128做的串口服务器,包括原理图,源代码,TCPIP开发资料,接口包括RS232,RS485,RJ45
Platform: |
Size: 17830778 |
Author: 陈振宇 |
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Description: RS232/RS422/RS485通用协议标准和参考资料
Platform: |
Size: 105140 |
Author: 余炳柱 |
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Description: 单片机 通讯 模块程序 SPI IIC UART（RS232）one_wire RS485总线 均有详细解释 是本人精心调试项目时所用 望对你有帮助
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Size: 65201 |
Author: dflibai |
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Description: 本程序RS232通信的一个实验小程序,其中还有rs232和rs485的介绍!- A this procedure RS232 correspondence experimental script, also
has rs232 and the rs485 introduction!
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Size: 297984 |
Author: 马斌 |
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Description: 各类源程序集锦 硬件介绍：\7290\ ZLG7290例程* \7290a\ ZLG7290汇编例程* \bell\ 蜂鸣器音乐例程* \buzz\ 蜂鸣器响例程* \eeprom\ 读EEPROM并显示例程* \ex26a_lcd\ 16×2LCD模块例程* \ex36a_lcm\ 128×64点阵LCD模块例程* \KEY_IO\ 直连KEY和LED例程 \led_light\ 直连LED例程* \lin_park\ lin模块的原码及例程。 \lin\ LIN总线例程 \rs232\ RS232例程(包括PC端和书上了串口例程) \USB1.1\ USB1.1例程(包括PC端) \RS485\ RS485例程 \USB2.0\ USB2.0例程(有3个，包括PC端) \TCPIP\ 基于ETHERNET的TCPIP例程 \RTC\ 时钟显示例程 \CAN_SELF\ CAN自发自收例程 外中断1 \CAN\ CAN例程 \USBPACK 2.0\ USB2.0PC例程 --Collections of various programs: hardware introduction, assembly program, LCD module, etc.
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Size: 23359488 |
Author: 梁福田 |
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Description: 51单片机众多优秀的开发源程序：ZLG7290例程*ZLG7290汇编例程*蜂鸣器音乐例程*蜂鸣器响例程*读EEPROM并显示例程*16×2LCD模块例程*128×64点阵LCD模块例程*直连KEY和LED例程*直连LED例程*lin模块的原码及例程。LIN总线例程 RS232例程(包括PC端和书上了串口例程) USB1.1例程(包括PC端) RS485例程 USB2.0例程(有3个，包括PC端) 基于ETHERNET的TCPIP例程 时钟显示例程 CAN自发自收例程 外中断1 CAN例程 USB2.0PC例程-51 MCU development of many excellent source : Wire routines** Wire compilation routines buzzer music routines** buzzer sound routines EEPROM read and display routines* 16 gen module routines* 128 x 64 dot-matrix LCD module routines* Direct Connect KEY routines and LED* Direct Connect lin* LED module routines of the original code and routines. LIN bus RS232 routines routines (including PC- and a book on the serial routines) USB1.1 routines (including the PC side) RS485 routines USB2.0 routines (there are three, including the PC side) BASED ETHERNET TCPIP routines clock display routines CAN spontaneous collected an external interrupt routines CAN routines USB2.0PC routines
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Size: 19338240 |
Author: 符凝思 |
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Description: 超声波测距基于8051的源程序设计-8051 Ultrasonic Ranging based on the source code design
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Size: 7168 |
Author: 黄希 |
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Description: 本程序主要用于两个串口扩展的通信程序：RS232和RS485。-the procedure used mainly for the expansion of two serial communication program : RS232 and RS485.
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Size: 2048 |
Author: 廖学兵 |
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Description: 用VC编写的关于RS通讯协议的窗口调试程序 同时可以RS232 以及 RS485上进行调试。-VC RS prepared by the communication protocol debugging window procedure can be RS232 and RS48 5 on debugging.
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Size: 3721216 |
Author: 余琨 |
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Description: 这是几年前我写的，自动识别RS485和RS232接线极性、自动检测波特率、自动匹配协议的云台控制软件，只是当时我还没用C写-This is a few years ago I wrote, and automatic identification RS485 and RS232 wiring polarity, automatically detects the baud rate, auto-matching agreement Yuntai control software, but I did not then use C to write
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Size: 15360 |
Author: 钱雄 |
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Description: 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-At present, the more commonly used 9-pin serial port serial port (DB9) and 25-pin serial port (DB25), when the communication distance of more recent (<12m), can be directly connected to standard power cable RS232 port (RS422, RS485 away), If the distance required to attach a modem (MODEM). The most simple and commonly used is a three-wire connection, that is, the receive data and send data three-connected, this article only relates to the most basic access method, and directly connected to RS232
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Size: 8192 |
Author: videowencn |
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Description: 利用SPCE061A，RS485 多路数据采集系统
本系统采用双CPU控制，主机与从机的CPU都是使用SPCE061A单片机。从CPU负责采集七路数据，同时应答主CPU发送的命令。主CPU进行数据处理，数据显示，键盘输入，系统报警，语音播报通道的电压值。在主CPU与从CPU的通讯中，采用国际标准的RS485差分方式接口，使通讯的速率和传输距离均大于RS232的标准接口方式，并且用线最少（只要两根）。本系统实现了一种具有语音播报、语音提示的高性能、高智能的实用型远距离多路数据采集系统。-The use of SPCE061A, RS485 multi-channel data acquisition system using dual-CPU of the system control, the host machine s CPU from SPCE061A Singlechip use. From the CPU is responsible for collecting data on seven routes, while answering the main CPU to send commands. The main CPU for data processing, data display, keyboard input, the system alarm, voice broadcast channel voltage. In the main CPU and the communications from the CPU, using international standards, the way RS485 differential interface to enable communication rate and transmission distance were greater than the standard RS232 interface mode, and with lines at least (as long as 2). The system achieved a voice broadcast, voice prompts, high-performance, high intelligence, practical long-range multi-channel data acquisition system.
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Size: 409600 |
Author: vonbo |
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Description: 采用SN75LBC184来实现RS232C与RS485串行口的转换,从而使PC机具备主从式多机通讯
功能,实现对多个单片机组成数据采集终端的通讯与管理. 约定一种简单和有效的串口通讯协议,根据
这种通讯协议设计出单片机与PC机串口通讯程序-SN75LBC184 used to achieve the RS232C and RS485 serial port conversion, so that PC-equipped master-slave multi-machine communications, to achieve a number of single-chip data acquisition terminal component of communication and management. Agreed a simple and effective string mouth communication protocol, according to this design a single-chip communication protocol with the PC-Serial communication program
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Size: 515072 |
Author: 平行线 |
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Description: 详细讲述了RS232，RS485，RS422电平间的不同，及各电平的特点等问题。-A detailed account of the RS232, RS485, RS422-level between the different levels and characteristics and so on.
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Size: 92160 |
Author: 白波 |
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