Research on Network Driver Based on Embedded Processor

In order to achieve better network communication between embedded devices, we complete a network driver program based on embedded processor platform. In the definition of internal data type, We choose little-endian due to our processor and use LwIP build-in error code in arch.h file. Moreover, LwIP provides users with a convenient configuration at the beginning of its design. Additionally, in order to achieve stable data communication and web browser functionality, a no operating system migration is performed on the embedded TCP/IP protocol stack LwIP. In this paper, we present the migration process and function graph. A detailed analysis on the protocol stack internal data management and low-level interface is provided as well. Test results show that LwIP guarantee stable communication with high speed and small memory consumption.