Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide 351
Creating and Downloading User–Data Files
Pattern RAM (PRAM) Data Downloads
SCPI Command for a List Format Download
Using the list format, enter the data in the command line using comma
separated decimal values. This file type takes longer to download because the
signal generator must parse the data. When creating the data, remember that
the signal generator requires a minimum of 60 bytes. For more information on
file size limits, see “PRAM File Size” on page 349.
Command Syntax
:MEMory:DATA:PRAM:FILE:LIST
<"file_name">,<uint8>[,<uint8>,<...>]
uint8 The decimal equivalent of an unsigned 8–bit integer
value. For a list of usable decimal values and their
meaning with respect to the generated signal, see
Table on page 348.
Command Syntax Example
The following example, when executed, creates a new file in volatile (waveform)
memory with the following attributes:
—creates a file named new_file
— outputs a single pulse at the EVENT 1 connector
— bursts the data pattern 1100 seven times over 28 bytes
— transmits 32 non–bursted bytes
— resets the data pattern so it starts again
:MEMory:DATA:PRAM:FILE:LIST
<"new_file">,85,21,20,20,21,21,20,20,21,21,20,20,21,21,
20,20,21,21,20,20,21,21,20,20,21,21,20,20,16,16,16,16,16,16,16,16,16,16,16,
16,16,16,
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,144
The following list defines the meaning of the different bytes seen in the
command line:
SCPI Command for a Block Data Download
The IEEE standard 488.2–1992 section 7.7.6 defines block data. The signal
generator is able to download block data significantly faster than list formatted
data (see page 351), because it does not have to parse the data. When
85 Send a pulse to the EVENT 1 output, and burst the signal with a data bit of 1.
21 Burst the signal with a data bit of 1.
20 Burst the signal with a data bit of 0.
16 Do not burst the signal (RF output off), and set the data bit to 0.
14
4
Reset the data pattern, do not burst the signal (RF output off), and set the data bit to 0.
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