Keysight Technologies X-Series, Programming Manual

Page: 254 / 398

254 Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide
Creating and Downloading Waveform Files
Programming Examples
C++ Programming Examples
This section contains the following programming examples:
— “Creating and Storing Offset I/Q Data—Big and Little Endian Order” on
page 254
— “Creating and Storing I/Q Data—Little Endian Order” on page 260
— “Creating and Downloading I/Q Data—Big and Little Endian Order” on
page 262
— “Importing and Downloading I/Q Data—Big Endian Order” on page 267
— “Importing and Downloading Using VISA—Big Endian Order” on page 269
— “Importing, Byte Swapping, Interleaving, and Downloading I and Q Data—
Big and Little Endian Order” on page 275
— “Calculating the RMS Voltage for a Waveform Programming Using C++”
on page 283
Creating and Storing Offset I/Q Data—Big and Little Endian Order
On the documentation CD, this programming example’s name is
“ offs+.txt .”
This C++ programming example (compiled using Microsoft Visual C++ 6.0)
follows the same coding algorithm as the MATLAB programming example
“Creating and Storing I/Q Data” on page 284 and performs the following
functions:
— error checking
— data creation
— data normalization
— data scaling
— I/Q signal offset from the carrier (single sideband suppressed carrier signal)
— byte swapping and interleaving for little endian order data
— I and Q interleaving for big endian order data
— binary data file storing to a PC or workstation
— reversal of the data formatting process (byte swapping, interleaving, and
normalizing the data)
After creating the binary file, you can use FTP, one of the download utilities, or
one of the C++ download programming examples to download the file to the
signal generator.
// This C++ example shows how to
// 1.) Create a simple IQ waveform
// 2.) Save the waveform into the ESG/PSG Internal Arb format
// This format is for the E4438C, E8267C, E8267D
// This format will not work with the ESG E443xB or the
Keysight MXG N518xA
// 3.) Load the internal Arb format file into an array