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Description: 目前在工业控制领域,单片机系统主要通过RS232、RS485和CAN总线协议通信,它们无法直接与互联网连接,因此该系统处于与互联网隔绝的状态。这些系统广泛采用低成本8位单片机,而这种单片机一般只具有RS232异步串行通信接口,要接入到互联网必须进行通信接口改造,这种改造不仅是接口的物理改造,更关键是数据格式的改造和通信协议的转换。本文提出一种RS232串行通信接口与RJ45以太网接口转换器的设计方案,已有的单片机系统可以通过该转换器接入到以太网,进一步接入互联网。
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Size: 1908606 |
Author: 郑宏超 |
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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
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Size: 17830778 |
Author: 陈振宇 |
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Description: 目前在工业控制领域,单片机系统主要通过RS232、RS485和CAN总线协议通信,它们无法直接与互联网连接,因此该系统处于与互联网隔绝的状态。这些系统广泛采用低成本8位单片机,而这种单片机一般只具有RS232异步串行通信接口,要接入到互联网必须进行通信接口改造,这种改造不仅是接口的物理改造,更关键是数据格式的改造和通信协议的转换。本文提出一种RS232串行通信接口与RJ45以太网接口转换器的设计方案,已有的单片机系统可以通过该转换器接入到以太网,进一步接入互联网。-Currently in the field of industrial control, single-chip microcomputer system mainly through RS232, RS485 and CAN bus protocol communications, they can not be directly connected to the Internet, so the system is in a state of isolation and the Internet. These systems are widely used in low-cost 8-bit MCU, which generally has a single-chip RS232 asynchronous serial communication interface, to access to the Internet must be communication interface transformation, such transformation is not only the physical interface transformation, more crucial is the transformation of data format and communication protocol conversion. In this paper, a RS232 serial communication interface with RJ45 Ethernet interface converter design, the existing single-chip microcomputer system via the access to Ethernet converter, and further access to the Internet.
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Size: 1908736 |
Author: 郑宏超 |
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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-MEGA128 to do with the serial server, including schematics, source code, TCPIP development information, interface, including RS232, RS485, RJ45
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Size: 17830912 |
Author: 陈振宇 |
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Description: 硬件接口大全，RS232，RS485，rj45等，有利于硬件开发与调试-Encyclopedia of hardware interface, RS232, RS485, rj45, etc. and is conducive to hardware development and debugging
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Size: 3072 |
Author: 王朝 |
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Description: C51 串口源码,在OS操作系统下的数据网关,实现RS232转RJ45-C51串口程序
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Size: 4096 |
Author: gp |
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Description: Almighty-EDK开发套件是一款以Xilinx最新90ns工艺的Spartan3S700A FPGA为核心，以
USB2.0及RJ45，VGA，AC97接口应用为主要针对市场的产品，利用Almighty开发板上的高效低成
本ADC及FPGA外围大容量SDR SDRAM、Nor Flash存储器，配合使用FPGA内部的乘法器单元、
逻辑单元及MicroBlaze软核处理器，用户可以搭建强大的SOC应用平台，同时Almighty开发套件支
持通过USB2.0/RS232等PC接口与计算机相连进行高速数据交互，无论是进行课题研究还是进行产
品设计，无论是FPGA设计还是ASIC原型验证，Almighty功能及性能上都表现卓越。依元素科技为
该项产品提供丰富的例程及培训支持，利用Almighty套件进行项目设计将是您的最佳选择-sdfhsdfhsdfhsfhserywfghsrey sh
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Size: 1842176 |
Author: 林 |
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Description: 汇总整理RJ45 RS232 USB三种接口的详细资料、接驳方式及接口的制作方法与传输方式-Collecting and sorting RJ45 RS232 USB triple interface details, access methods and interfaces of the production methods and transmission
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Size: 134144 |
Author: 三郞 |
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Description: RTX 实时平台实现RS232 通讯,在工控领域，特别是我比较熟悉的半导体行业，设备与设备之间的通讯一般有TTL,
RS232, GPIB, RJ45 等，RS232 是其中常见的且运用广泛的一种通讯方式。因其简单易用，
在设备之间短距离通讯，一般都采用RS232。-RTX real-time platform RS232 communication, in industrial areas, especially in the communications semiconductor industry, I am more familiar with the equipment and devices generally have TTL, RS232, GPIB, RJ45, etc., RS232 is one of the common and widespread use of a communication the way. Because of its ease of use, at a short distance communication between devices, are generally used RS232.
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Size: 4174848 |
Author: wujiewen |
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Description: 硬件板基于DSP芯片TMS320F2812，通过SPI (Serial Peripheral Interface)口对带协议栈网卡W5500寄存器进行配置，通过网络变压器，RJ45与PC机进行通信，DSP硬件系统通过RS232标准串口与上位机进行通信。(The hardware board of DSP chip based on TMS320F2812, by SPI (Serial Peripheral Interface) and the configuration of the network protocol stack with the W5500 register, through the network transformer, RJ45 communicate with PC, DSP hardware system communicate through RS232 standard serial port and PC.)
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Size: 186368 |
Author: Johanne
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Description: 通过对计算机的USB口或RJ45网口加装相应的多串口卡转换器等方式，扩展不少于16个 RS232或RS485串口，模拟现场数量众多的动力设备，实现动力设备与被测试SU通信协议的交互，作为SU测试时的动力设备数据源。
1） 扩展仿真为RS485接口时，该RS485接口应能实现不少于3个地址的串行总线仿真；
2） 模拟动力设备数量最多为16个RS485串行总线、48个RS485接口的设备；
3） 仿真软件内置协议数量应不少于200个动力设备；(Through to the computer USB port or RJ45 port with the corresponding serial card converter, expansion of not less than 16 RS232 or RS485 serial port, a large number of power equipment simulation field, realize the power equipment of the communication protocol of SU and tested interaction, as the data source of power equipment SU when testing.
1) when the extended simulation is the RS485 interface, the RS485 interface should be able to implement the serial bus simulation with no less than 3 addresses.
2) the number of analog power equipment is 16 RS485 serial bus and 48 RS485 interface devices.
3) the number of built-in protocols in the simulation software should not be less than 200 power devices;)
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Size: 25468928 |
Author: 米洛
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