Ethernet is widely used because of its low cost, easy integration, and long transmission distance. The traditional Ethernet solution often uses the main control CPU to connect the physical layer interface chip, and writes the Ethernet communication protocol in the main controller. This method requires the preparation of cumbersome programs and takes a lot of time to debug. Since the network protocols are generally relatively large, the stability after writing the software is not good, which is not conducive to the rapid development and stable operation of the system. And customers often have new needs, this way of using software to achieve it is difficult to meet the requirements of frequent updates and upgrades. Therefore, one way is to separate the processing of the network protocol from the system processor and allow the input / output of applications and data to be executed on different hardware to adapt to various conditions. It divides the processing of the network protocol into a control part executed by a specific processor and a hardware line part. The advantage of this method is that it has a shorter development cycle and higher flexibility, and can increase stability and effectively reduce the main CPU. Burden, modular design also facilitates future system upgrades. The high-speed hardware Ethernet protocol chip W5100 introduced by Beijing Bokong Automation Co., Ltd. solves the above problems well. It also integrates a highly mature TCP / IP protocol stack, Ethernet MAC layer, PHY layer, etc., supports TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE and other protocols, these protocols have been verified in many fields for many years. It supports 4 independent Socket communications, the internal 16K byte send / receive buffer can quickly exchange data, and the maximum effective communication rate can reach 25Mbps. The use of W5100 does not need to consider the control of Ethernet, only need to carry out simple port (Socket) programming, as simple as accessing external memory. It provides two parallel bus interfaces (direct bus and indirect bus) and serial SPI interface. W5100 greatly reduces the workload of hardware interface design and network programming, and can realize a reliable and stable operation of remote data communication system, which can be widely used in various safety inspections, power system measurement and monitoring audio and video transmission, remote information transmission, etc. field. The following figure 1 is the system architecture of W5100: Figure 1 W5100 system architecture For example, by introducing Ethernet technology into an embedded system with DSP as the core, the DSP chip has a network connection function, and the PC exchanges and controls a large amount of data with the DSP embedded module through a network card. Magicard Printers Cleaning Kits Magicard Cleaning Kit,Magicard Enduro Cleaning Kit,Magicard Rio Pro Cleaning Kit,Magicard Rio Pro Cleaning Miraclean Technology Co., Ltd. , https://www.mrccleanroom.com