说明：  以太网(Ethernet)是当今现有局域网采用的最通用的通信协议标准，该标准定义了在局域 网中采用的电缆类型和信号处理方法。以太网凭借其成本低、通信速率高、抗干扰性强等优点被广泛应用在网络远程监控、交换机、工业自动化等对通信速率要求较高的场合。本章我们将使用FPGA开发板上的以太网接口完成上位机与FPGA通信的功能。
(Ethernet (Ethernet) is the existing local area network (LAN) using one of the most common communication protocol standard, the standard defines in the local area Net cable types and signal processing methods. Ethernet because of its low cost, high communication speed, strong anti-interference, etc are widely used in remote monitoring network, switches, industrial automation and other occasions with higher requirements on the rate of communication. In this chapter we will use the Ethernet interface on the FPGA development board to complete the function of the PC and the FPGA communication.)