Design for lwIP-based embedded gateway for CAN/Ethernet
一种基于lwIP的CAN/Ethernet嵌入式网关设计

To realize the interconnection between the nodes of Ethernet in the control center and the nodes of the CAN bus in the industry field, an embedded system based CAN/Ethernet was designed. The TCP/IP protocol was implemented by porting the lwIP and CAN application layer protocol was proposed and realized by redefining the content of the IDENTIFIER of the CAN2.0B extension data frame. A transformation protocol was proposed and implemented to realize the data transformation between the two protocols and the control of the communication. The communication between the server of the Ethernet and the CAN nodes and the communication between the CAN nodes with different gateways were realized.