NetFPGA Environment
Prepared by Van Quoc Dung
Agency
Way to connect to server
 Subversion control
 Xilinx development environment
 Testing problem

Connecting to server …

2 ways to connect
◦ From: Linux
 ssh -XC netfpga@172.28.11.155
◦ From: Window
 Using Putty + Xming
 Putty: enable forward X11 (SSH – X11 tab)
 Xming: handle GUI (Xming font + Xming)
Subversion control

Why using???


Easily control project version
Check out projects
◦ svn co svn+ssh://netfpga@172.28.11.155/projects/NIDS

Check status


svn status
Add file to prepare check in
◦ svn add fileA fileB …

Check in status
◦ svn ci –m ‘Message telling how your code is changed’
Xilinx development

Xilinx Flow
Verilog
Compile &
Simulation
Synthesis
NDC
NGDbuild
NGD
Place and
Route
MAP
NCD & PCF
NCD
Bitgen
Xilinx development

Development Approach
◦ Interactive Gui
 ISE
 PlanAhead
◦ Command Line
 For large project -> increase productivity
 Dedicated server -> some ocassions not support
GUI
 Resource utilization
Xilinx development

Command Line Mode
◦ Scripting Language:
 Perl
 TCL
 Unix bash
◦ Build Flow Approach:




Direct Invocation
XFLOW
XTCLSH
PlanAhead
Xilinx development

Using Perl and invoke direct command
from ISE command
◦
◦
◦
◦
◦
xst –ifn nf2_top.prj –ofn nf2_top.ngc
ngdbuild –p xv2p50-ff1152-7 “nf2_top.ngc”
map …
Par …
Bitgen …
Integrated to netfpga.pl perl file
Xilinx development

Using netfpga.pl
◦ netfpga.pl -clear // clear all unnecessary files
◦ netfpga.pl -core // generate IP from xco files
◦ netfpga.pl -syn // synthesize projects ISE
◦ netfpga.pl –syn -top nf2_top // synthesize
projects without ISE created
◦ netfpga.pl –bit –top nf2_top // generate bit file
◦ netfpga.pl –sim –top debug // simulation
Note: Type command in project directory.
Make sure that you turn on the TMAC license
Xilinx development

Some other command tool need deploy
◦ Data2mem: change value of Bram in Bit file
◦ Mem_edit: edit memory
Testing problem
NIC in
Board
NIC out
Send directly out to port, no
need TCP/IP mechanism
Testing problem
Networking Traffic
Switch
Board
ARP, TCP, UDP
Need operate like an NIC
Testing problem
Networking Traffic
Switch
Not need operate like an NIC, but
1 – Board send random packet so that
switch can cache the MAC add
2 – Network Traffic is generate by autotool
which indentifies Board MAC add
Board