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Description: simple descriptions of RS232、RS422、RS485 and the deference between them,some simple samples included-simple descriptions of RS232, RS422, RS485 and the deference between them, some simple samples included
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Size: 32649 |
Author: 罗仪 |
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Description: RS232、RS422与RS485标准及应用-RS232, RS422 and RS485 standards and Application
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Size: 86685 |
Author: 豫 |
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Description: RS232/RS422/RS485通用协议标准和参考资料
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Size: 105140 |
Author: 余炳柱 |
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Description: simple descriptions of RS232、RS422、RS485 and the deference between them,some simple samples included-simple descriptions of RS232, RS422, RS485 and the deference between them, some simple samples included
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Size: 32768 |
Author: 罗仪 |
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Description: RS232、RS422与RS485标准及应用-RS232, RS422 and RS485 standards and Application
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Size: 86016 |
Author: 豫 |
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Description: RS422/485的通信协议说明。工业通信领域的同志们可以-RS422/485 communication protocol note. Industrial Communication fields comrades can s
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Size: 593920 |
Author: 张贺 |
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Description: AVR 通用 Bootloader 使用说明
*支持多种型号的AVR单片机
*支持多串口的AVR单片机
*支持RS232/RS485/RS422模式
*支持多种通信波特率和时钟频率
*自动计算波特率误差，如果波特率误差>2％，将给出错误提示
*完全C语言编写，容易修改
*为移植做了很多优化，将移植的工作量减少到了最低
*代码高度优化，占用空间小
*方便的功能裁剪，适应不同的要求
*支持看门狗
*支持使用LED指示升级状态
*支持超级终端下载-AVR Bootloader common use* to support multiple models of the AVR* support Multiport Serial the AVR support RS232/RS485/RS422 mode** support multiple communication wave Special rates and clock frequency Baud Rate* Automatic calculation error, if error Baud Rate
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Size: 395264 |
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Description: 硬件实用手册
硬件手册中收集了几乎一切与计算机有关的接插件的引脚说明，例如：
各种总线：ISA, EISA, PCI, VESA, CompactPCI, PCMCIA ......
串行接口：RS232, PC9, PC25, Printer, PS/2, RS422 ......
并行接口：PC, Amiga, ECP, MSX ......
视频接口：VGA, EGA, CGA, PGA, Macintosh Video ......
其他接口：USB, BeBox GeekPort ......
各种键盘接口，软盘、硬盘接口，内存条接口，游戏杆接口，音、视频接口，以及以太网接口、MIDI接口等等等等，也都应有尽有。-hardware practical manual hardware manual collection of almost all computer-related note of the pin plug, For example : the Bus : ISA, EISA, PCI, VESA, CompactPCI, PCMCIA ...... Serial Interface : RS232, the PC9, PC25, Printer, PS/2, RS422 ...... Parallel Interface : PC, Amiga, ECP, MSX ...... Video Interface : VGA, EGA, CGA, PGA, ...... other Macintosh Video Interface : USB, BeBox GeekPort ...... various keyboard interface, floppy disk, hard disk interface, memory interfaces, joysticks interface, audio, video interface, and Ethernet interface, MIDI interface, etc., are also addressed.
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Size: 659456 |
Author: 连永兴 |
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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，以回答前段网友的咨询。-now more commonly used serial 9-pin serial port (projectors) and 25-pin serial port (DB25), Communication at close distance (
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Size: 7168 |
Author: steven |
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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: 用VHDL编写的串口异步通信的例子，适于RS232、RS422的通信-err
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Size: 558080 |
Author: 王权 |
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Description: 这是一个用VHDL开发的RS422通讯程序,在ALTERA FLEX EPF10K上通过了测试-This is a VHDL development with RS422 communication procedures, in the ALTERA FLEX EPF10K passed the test
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Size: 1586176 |
Author: 徐 |
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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。-err
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Size: 632832 |
Author: 张哲 |
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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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Description: RS232/RS422/RS485通用协议标准和参考资料-RS232/RS422/RS485 generic protocol standards and reference materials
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Size: 104448 |
Author: 余炳柱 |
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Description: DIY多功能转换器（已调试通过）。
本原理图可以实现USB/RS232、USB/RS422、USB/RS485接口转换功能。只需安装USB驱动程序即可实现USB转串口的功能，简单方便。另外只需对电路图稍作改动即可实现RS232/RS422或RS232/RS485转换功能。
心动了吗？不如赶快行动，拥有属于自己的五合一的接口转换器吧！-DIY Multi-function Converter (has debug through). The schematic diagram can be achieved USB/RS232, USB/RS422, USB/RS485 interface conversion. Simply install the USB driver can achieve the function of USB to serial, easy and convenient. Also just to make a minor amendment to the circuit can be realized RS232/RS422 or RS232/RS485 conversion. Echocardiography it? Action as soon as possible, with their own-one interface converter吧!
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Size: 167936 |
Author: laochao |
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Description: 串口通讯大权，介绍了RS232，RS422，RS485等串行通讯的协议，规范，具体说明等。帮助你写好串口同学-Serial communication power, introduced the RS232, RS422, RS485 and other serial communication protocol, standardization, and specific descriptions. Students help you write the serial
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Size: 907264 |
Author: changhui |
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Description: 串口通信编程大全RS232 RS422 RS485-Serial communication programming Daquan RS232 RS422 RS485
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Size: 907264 |
Author: wangyf |
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Description: RS232-RS422隔离模块电路图,隔离电压为3000V-RS232 AND RS422 communication adaptor,isolated
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Size: 216064 |
Author: 孙悟空 |
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Description: 母板通过FR232R芯片及其外围电路实现USB接口转UART（TTL电平）接口，并提供自定义的双列插针扩展接口；功能子板则分为RS232接口和TTL接口两种，并可根据需要设计RS485/RS422/CAN总线接口。-Motherboard chip by FR232R USB interface and its peripheral circuit switch UART (TTL level) interface, and provide a custom double-row pin expansion interface function is divided into sub-board RS232 interface and TTL interface to two, and according to need to design RS485/RS422/CAN bus interface.
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Size: 1667072 |
Author: 伍俊 |
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