论文部分内容阅读
本文阐述了32位软核处理器NIOSII以太网接口的实现方法,结合SOPC可以灵活配置的特点,定制了硬件系统,给出了软件设计的主要流程及部分实现要点。在FPGA上构建SOPC系统,并在NIOSII上移植了操作系统uClinux,编写了软件驱动程序,通过PC向片上可编程系统发数据包,可以从以太网接口获得所有数据包的返回信息。实验表明,以NIOSII和DM9000A以太网控制器构成的网络化测控系统,结构简单、性能稳定可靠。
This paper describes the realization of 32-bit soft-core processor NIOSII Ethernet interface, combined with the SOPC can be flexible configuration features, customized hardware system, gives the main flow of software design and some of the key points. Build SOPC system on FPGA, and transplant the operating system uClinux on NIOSII, write the software driver program, send the data packet to the on-chip programmable system through PC, can get the return information of all data packets from Ethernet interface. Experiments show that the NIOSII and DM9000A Ethernet controller networked measurement and control system, the structure is simple, stable and reliable performance.