Implementation and Real-Time Optimization of Lwip Stack Based on AM3354 UCOS-II

Abstract

According to actual needs and real-time embedded Ethernet communication, put forward a kind of by transplantation Lwip protocol stack to achieve Ethernet communication, the method of hierarchical structure clear and easy to maintain, using DMA interrupt request, realizes the Ethernet data transmission, and on this basis to optimize network communication and by adding a core layer within the Lwip priority waiting queue, The original equal data processing has been changed to give priority to processing the data in the waiting queue, and then to processing the ordinary data, so that the data processing is more flexible. The experimental test runs stably and reliably, which not only meets the security standards of the system, but also meets the requirements of embedded real-time communication.