| As the continuous development of embedded systems and Internet technology,the traditional embedded device for network access requirements increase.Data showing that in the near future, there will be 95% of the networking equipment not only computers, it is more embedded products with network functions. Embedded device access networking is the trend, the implementation of embedded network protocol stack is the core of networked embedded devices.TCP/IP protocol stack is a very complex and huge system, it is an important part of safe and reliable Internet,usually in a general support by operating system on computer.However, embedded systems with limited processing power and the lack of storage resources, the traditional TCP/IP protocol used in the embedded environment is not appropriate.In order to achieve the corresponding network function and save system resources in the embedded system,there is a need for TCP /IP protocol reductions or generallly use the subset of the TCP/IP protocol stack including IP,UDP,TCP and ICMP protocols such as all or part of function of the protocol implementation to choose the maximum extent possible to make an agreement to maintain the integrity of function and mechanism to meet the needs of network applications.This thesis transplantate an embedded network protocol stack of UIP to access the network based on processor STM32, focusing on the inplementation of DM9000 network card driver and overall structure of embeded network protocol stack of UIP. On the hardware field, this thesis uses a low-power-cost STM32F103ZF as a microprocessor, Ethernet control chip DM9000 mature as a network interface, built a processor-based STM32 experimental platform for Ethernet access. On the software field, this thesis introduces peripheral interface driver of STM32 processor, and then introduces DM9000 Ethernet controller chip drivers. Finally, introudence the transplantation of embedded network protocol UIP and analyzed the structure of UIP stack. |
PDF Full Text Request