Specifications

Ethernet and the NicheStack TCP/IP Stack -
Nios II Edition
11
2015.05.14
NII5V2
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The NicheStack TCP/IP Stack - Nios II Edition is a small-footprint implementation of the TCP/IP suite.
The focus of the NicheStack TCP/IP Stack implementation is to reduce resource usage while providing a
full-featured TCP/IP stack. The NicheStack TCP/IP Stack is designed for use in embedded systems with
small memory footprints, making it suitable for Nios II processor systems.
Altera provides the NicheStack TCP/IP Stack as a software package that you can add to your board
support package (BSP), available through the Nios II Software Build Tools (SBT). The NicheStack TCP/IP
Stack includes these features:
• Internet Protocol (IP) including packet forwarding over multiple network interfaces
• Internet control message protocol (ICMP) for network maintenance and debugging
• User datagram protocol (UDP)
• Transmission Control Protocol (TCP) with congestion control, round trip time (RTT) estimation, and
fast recovery and retransmit
• Dynamic host configuration protocol (DHCP)
• Address resolution protocol (ARP) for Ethernet
• Standard sockets application program interface (API)
This chapter discusses the details of how to use the NicheStack TCP/IP Stack for the Nios II processor
only.
Prerequisites for Understanding the NicheStack TCP/IP Stack
To make the best use of information in this chapter, you should be familiar with these topics:
• Sockets
• Nios II Embedded Design Suite (EDS)
• MicroC/OS-II RTOS
For more information about the several books available on the topic of programming with sockets,
refer to Unix Network Programming by Richard Stevens.
For more information about the several books available on the topic of programming with sockets,
refer to Internetworking with TCP/IP Volume 3 by Douglas Comer.
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