Terasic HAN Pilot Platform, Demonstration Manual, Page: 35 / 117

HAN Pilot Platform
Demonstration Manual 34 www.terasic.com
September 6, 2019
Figure 2-33 Block diagram of the Socket Server Demonstration
Part of Nios II, NicheStack TCP/IP Network Stack is a software suite of networking protocols
designed to provide an optimal solution for designing network-connected embedded devices with
the Nios II processor. A telnet client application is used to communicate with the Simple Socket
Server issuing commands over a TCP/IP socket to the Ethernet-connected NicheStack TCP/IP Stack
running on the HAN Pilot Platform with a Simple Socket Server. The Simple Socket Server
continues to listen for commands on a TCP/IP port and operates the HAN Pilot Platform according
to the commands from the telnet client. NicheStack TCP/IP stack uses the MicroC/OS-II RTOS
multithreaded environment to provide immediate access to a stack for Ethernet connectivity for the
Nios II processor. The Nios II processor system contains an Ethernet interface, or media access
control (MAC)
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How the Ethernet demonstration is built
In this following section we describe how to build the demonstration through the QSYS. The QSYS
system includes the CPU processor, On-Chip memory, JTAG UART, system ID, timer, Triple-Speed
Ethernet, Scatter-Gather DMA Controllers and peripherals which are linked together contained in
the Nios II hardware system that are used when building a project.
Figure 2-34 presents the overall
setup of the QSYS from the Ethernet Simple Socket Server project.