Keysight E4428C ESG RF - Page 318

310 Keysight Signal Generators Programming Guide
Creating and Downloading Waveform Files
Programming Examples
250 OUTPUT @Esg;END
260 ASSIGN @Esg TO *
270 ASSIGN @Esgb TO *
280 PRINT
290 PRINT "*END*"
300 END
Creating and Downloading E443xB Waveform Data Using HP Basic for UNIX
On the documentation CD, this programming example’s name is “e443xb_hpbasicUx2.txt.”
The following program shows you how to download waveforms using HP BASIC for UNIX. It is similar
to the previous program example. The difference is the way the formatting for the most significant bit
(MSB) on lines is handled.
First, the I waveform data is put into an array of integers called Iwfm_data and the Q waveform
data is put into an array of integers called Qwfm_data. The variable Nbytes is set to equal the
number of bytes in the I waveform data. This should be twice the number of integers in Iwfm_data,
since an integer is represented 2 bytes. Input integers must be between 0 and 16383.
In the Output commands, USING “#,K” formats the data. The pound symbol (#) suppresses the
automatic EOL (End of Line) output. This allows multiple output commands to be concatenated as if
they were a single output. The “K” instructs HP BASIC to output the following numbers or strings in
the default format.
Program Comments
10: Program file name.
20 Sets the number of points in the waveform.
30: Defines arrays for I and Q waveform points. Sets them to be integer arrays.
40: Sets HP BASIC to use degrees for cosine and sine functions.
50: Sets up loop to calculate waveform points.
60: Calculates I waveform points.
70: Calculates Q waveform points.
80: End of loop.
160 and 210: The I and Q waveform files have the same name
90 to 300:
See the
table on page306 for program comments.