Chapter 3 Programming Demos RIGOL
DSA800E Programming Guide 3-21
Linux Programming Demo
This section illustrates how to program and control the spectrum analyzer to realize the common functions
under Linux operation system.
Linux Programming Preparations
1. programming environment used here:
Operation System: Fedroa 8 (Linux-2.6.23)
GCC Version: gcc-4.1.2
2. Install the VISA library: make sure your PC has installed the VISA library of NI (download it from
http://www.ni.com/visa/). The installation procedures are as follows.
First download the VISA library NI-VISA-4.4.0.ISO from the NI network.
Create a new directory
#mkdir NI_VISA
Mount the iso file
#mount -o loop -t iso9660 NI-VISA-4.4.0.iso NI_VISA
Enter the NI_VISA directory to install
#cd NI_VISA
#./INSTALL
Unmount the iso file
#umount NI_VISA
After the installation is finished, the default installation path is /usr/local.
3. Here, the LAN interface of the spectrum analyzer is used to communicate with the PC. Please use a
network cable to connect the LAN interface at the rear panel of the spectrum analyzer with the LAN
interface of the PC. You can also use a network cable to connect the spectrum analyzer to the local
area network of the PC.
After the spectrum analyzer is correctly connected to the PC, configure the network address of the
spectrum analyzer to make it be within the same network segment with the network address of the PC.
For example, if the network address and DNS setting of the PC are as shown in the figures below, the
network address of the spectrum analyzer should be configured as follows.
IP Address: 172.16.3.X
*
Default Gateway: 172.16.3.1
Subnet Mask: 255.255.255.0
DNS: 172.16.2.2
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