A method for handling exceptions in embedded device multi-user network communication

Abstract

The invention relates to a method for processing abnormalities in multi-user network communication of embedded devices. The method is implemented based on the W5300 network chip, which can ensure that 1) when the user software for network communication with the embedded device fails or is abnormal in the application layer such as debugging, Only the network communication of the embedded device is interrupted, and other business operations are not affected; 2) When the user's application layer is abnormally restored, the network communication can return to normal; 3) When the embedded device is in the multi-user communication state, it can guarantee that only the abnormal user of the application layer The network communication is interrupted, and the network communication of other users is normal; this method makes up for the processing defect of the multi-user network chip on the abnormal communication of the application layer, optimizes the processing strategy of multi-user data transmission, and improves the design of embedded device multi-user network data transmission, greatly Improves the reliability and user experience of embedded devices.

Description

technical field [0001] The invention relates to an abnormal processing method for multi-user network communication of embedded equipment, belongs to the technical field of embedded network communication, and is applicable to various embedded equipment based on W5300 chip to realize network communication. Background technique [0002] The multi-user network chip is a single chip integrated with TCP / IP protocol, through which Internet connection can be realized simply and quickly. The chip and the host adopt a bus interface, and the host can interface with the chip through direct access or indirect access, and multiple independent socket connections are supported. But usually, the data communication memory of the chip can only be accessed through the TX / RX FIFO register. [0003] When the chip sends data, the host needs to copy the data to be sent to the corresponding socket sending memory through the TX FIFO register of the socket, and then send the SEND control command and ...

AI Technical Summary

Problems solved by technology

For these application layer exceptions such as user software failure or debugging, the chip usually does not have a corresponding design

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