ethernet expander

The underlying application of Ti cortex m3 serial port to Ethernet routine is LWIP and the version is v1.3.2. For LWIP, a stranger can check it online. It is an open-source TCP/IP protocol written by Adam in Switzerland. Since the serial port to Ethernet routine is based on LWIP, let's see how LWIP is transplanted to TI's cortex m3 hardware. This is the split line ------- For the porting overview, refer to

This article is still the agreement level, the agreement level will translate three, the next one is used in the power system more DNP3. Most of the information quoted in this article can be accessed, with only one writeup on the reversemode.com (Http://reversemode.com/downloads/logix_report_ Basecamp.pdf) requires identity authentication to download, if a friend can download and share.ETHERNET/IPCompared with Modbus, ETHERNET/IP is a more modern stan

The development of the exchange technology has become mature. At the same time, driven by telecom operators, the Ethernet exchange technology has been fully applied and its role has become more obvious. With the development of network technology and the popularization of Information Application, Ethernet Switching technology has been widely used. More importantly, it began to penetrate from simple lan appli

There are many things worth learning about Ethernet switches. Here we mainly introduce the new development direction of Ethernet switches. At present, more and more manufacturers are entering the Ethernet market, new brands and new products are emerging, and there seems to be a trend of Homogeneous Competition. However, it is worth mentioning that, as the number

Many people may not quite understand the switched Ethernet technology. First of all, let everyone know from bridges, multi-port bridges to switches, then we will introduce the working principle of the switched Ethernet technology and the advantages of the switched Ethernet technology. Ethernet machine, which is a SWITC

There are many things worth learning about Ethernet switches. Here we mainly introduce Ethernet switch configurations and network types. Rack-mounted switch, fixed configuration with/without expansion slot) rack-mounted switch is a slot type switch, which has good scalability and supports different network types, such as Ethernet, fast

community properties.The Intelligent Community Information system can be divided into two parts of information network subsystem and control network subsystem from function.The Information network subsystem is composed of data system, voice system, CATV system, on the one hand realizes the comprehensive access of data, voice and image, on the other hand provides the transmission channel for the control network subsystem, its transmission way is flexible, can be FTTB +lan, ADSL, HFC, can also be

The internet has grown rapidly with e-mail and www Two free services, prompting rapid growth of Ethernet. Now more and more manufacturers to enter the Ethernet market, new brands and new products continue to emerge, it seems that there has been a trend of homogenization of competition. However, the expansion of the Ethernet switch in the market at the same time,

The history of optical communication with light wave as information carrier is a long-standing one, the atmospheric laser communication is the communication of the atmosphere as the transmission medium, and it is the first kind of communication method developed after the laser appears. Because it has the advantages of long-distance transmission distance, frequency bandwidth, small transmitting antenna, good confidentiality and electromagnetic interference, more and more attentions are paid to it

Ethernet switches are still commonly used, so I studied the high availability of stack 10/100 Ethernet switches. I would like to share with you here, hoping to be useful to you. Catalyst3524-PWRXL Ethernet switches are part of the CiscoSystemsCatalyst3500XL series, which is a series of scalable stack 10/100 and Gigabit Ethern