Ethernet network port system and its network environment self-adaptation method, Ethernet equipment

Abstract

The invention relates to an Ethernet network interface system based on a single-chip microcomputer, a network environment adaptive method thereof, and Ethernet equipment. The network environment adaptive method includes the steps of: (a) reading current network environment information in a state register of an Ethernet physical layer (PHY) chip; (b) setting a network parameter register in the single-chip microcomputer according to the current network environment information and starting an Ethernet Direct Memory Access (DMA) unit for network communication when the current network environment information is successfully read; (c) monitoring an external trigger signal of the Ethernet PHY chip due to network interface plugging by using an external interruption I / O port of the single-chip microcomputer; and (d) closing the Ethernet DMA unit and repeating the step (a) and the step (b) when the external trigger signal is monitored by the external interruption I / O port. Accordingly, the users don't need to consider the change of the network environment during the usage of the Ethernet equipment, and the problem of network communication failure caused by unavailable network access before powering on of the Ethernet equipment or the changed network environment during the operation is avoided.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an Ethernet network port system based on a single-chip microcomputer, a network environment self-adaptation method thereof, and an Ethernet device. Background technique [0002] See figure 1 , which is a block diagram of an Ethernet port system based on a single-chip microcomputer. Such as figure 1 As shown, the microcontroller controls the Ethernet PHY chip (physical layer chip) to transmit information through the RJ45 network port through hardware interfaces such as RMII (Reduced Media Independent Interface, simplified media independent interface) or MII (Media Independent Interface, media independent interface). Ethernet transport layer protocol such as TCP (Transmission Control Protocol, Transmission Control Protocol), UDP (User Datagram Protocol, User Datagram Protocol) network communication. [0003] Based on the limitation of low-cost MCU performance and t...

AI Technical Summary

Problems solved by technology

[0005] It can be seen from the above that the existing Ethernet network port driver initialization method cannot adapt to changes in the network environment, which reduces the network compatibility of Ethernet devices

Images