Technical data

Agilent Signal Generators Programming Guide 349
Creating and Downloading User–Data Files
Pattern RAM (PRAM) Data Downloads (E4438C and E8267D)
Extracting a PRAM File
When you extract a PRAM file, you are extracting the translated 32–bit word–per–byte file. You
cannot extract just the downloaded data. Extracting a PRAM file is similar to extracting a waveform
file in that you use the same commands, and the PRAM file resides in either volatile memory
(waveform memory) or the waveform directory for non–volatile memory. After extraction, you can
download the file to the same signal generator or to another signal generator with the proper option
configuration that supports the downloaded file. There are two ways to download a file after
extraction:
• with the ability to extract later
• with no extraction capability
CAUTION Ensure that you do not use the :MEMory:DATA:PRAM:FILE:BLOCk command to download
an extracted file. If you use this command, the signal generator will treat the file as a
new PRAM file and translate the LSB of each byte into a 32–bit word, corrupting the file
data.