References/links:
- 35665-90052 Using HP Instrument BASIC with the HP 35665A
- E2083-90000 HP Instrument Basic Users Handbook
- 35665-90035 Quick Start Guide
- A collection of manuals and utilities for the 35665A from KO4BB
This is not a tutorial. HP has an excellent User Guide and User Handbook. This is just an example to get you started. We will do the following:
- Record a measurement
- Save the recorded program to a floppy disk
- Edit the program in a PC so that it can run
- Load and run the program in the 35665A
Keeping with the tradition of HP manuals this is a[Hardkey], this is a[SOFTKEY](the buttons at the right of the screen) and this is a[SOFTKEY WITH AN OPTION]selected.
Recording a measurement
We will do a source characterization (the first task of the Quick Start Guide). To do this you need to connect a BNC male-to-male cable from SOURCE to CHANNEL 1 first. Also now is a good time to insert a floppy disk in the drive.
Here we go:
[Preset] [DO PRESET] [BASIC] [INSTRUMNT BASIC] [SELECT PROGRAM] [PROGRAM 1] [RETURN][ENABLE RECORDING] this starts the recording[Preset] [DO PRESET][Source] [SOURCE ON OFF][FIXED SINE] [2] [0] [.] [5] [kHz][LEVEL] [0] [dbVrms][Avg] [AVERAGE ON OFF][NUMBER AVERAGES] [3] [0] [ENTER] [Start] [Marker] [MARKER TO PEAK] [REFERENCE TO MARKER][Marker Fctn] [HARMONIC MARKER] [FUNDAMNTL FREQUENCY][Marker Value] [THD][Plot/Print] [OUTPUT FILENAME] type "THDP0001" [ENTER][MORE SETUP] [OUTPUT TO HPIB FILE] [DEVICE IS PLOT PRNT][RETURN][START PLOT/PRNT][BASIC] this stops the recording and brinks up the HP Instrument BASIC menu.[Save/Recall] [SAVE MORE] [SAVE PROGRAM] type HPBASIC.B [ENTER]
Now the program is saved and you can move the floppy disk to the PC.
Open the program with a text editor. With any luck the program you saved looks like this:
And THDP0001 looks like this:
You can read here how to open a plot from the floppy drive.
If you try to run the program you recorded as is you will get something like this:
To run the stored program do the following:[Save/Recall][RECALL MORE][RECALL PROGRAM]type HPBASIC.B[ENTER][BASIC][HPBASIC.B]
The problem is that Instrument BASIC is feeding the commands to the Analyzer too fast. Now lets edit the program and add some delays. The 5 seconds are arbitrary (just to make the thing run). I am not trying to optimize how long the measurements takes.
The print should now look like this:
