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! This program shows how to set up the counter to transfer data at the
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! fastest possible rate. Note that the arming mode is AUTO. This mode
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! provides the least resolution of all arming modes.
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! The program comments discuss the meaning of each command.
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! ASCII result format is to preserve resolution.
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!
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CLEAR SCREEN
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INTEGER I
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DIM A$(200)[22],Dummy$[22]
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ASSIGN @Count TO 703
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CLEAR 703
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OUTPUT @Count;"*RST"
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OUTPUT @Count;"*CLS"
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OUTPUT @Count;"*SRE 0"
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OUTPUT @Count;"*ESE 0"
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OUTPUT @Count;":STAT:PRES"
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! The following lines will provide the highest throughput, regardless
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! of the state of the counter before these lines are executed.
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OUTPUT @Count;":FORMAT ASCII"
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OUTPUT @Count;":FUNC 'FREQ 1'" ! Select frequency
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OUTPUT @Count;":EVENT1:LEVEL 0"
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OUTPUT @Count;":FREQ:ARM:STAR:SOUR IMM" ! These two lines enable the
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OUTPUT @Count;":FREQ:ARM:STOP:SOUR IMM" ! AUTO arming mode.
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OUTPUT @Count;":ROSC:SOUR INT"
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OUTPUT @Count;":DIAG:CAL:INT:AUTO OFF" ! Disable automatic interpolater
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OUTPUT @Count;":DISP:ENAB OFF"
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OUTPUT @Count;":CALC:MATH:STATE OFF"
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OUTPUT @Count;":CALC2:LIM:STATE OFF"
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OUTPUT @Count;":CALC3:AVER:STATE OFF"
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OUTPUT @Count;":HCOPY:CONT OFF"
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OUTPUT @Count;"*DDT #15FETC?"
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Chapter 3 Programming Your Universal Counter for Remote Operation
Elements of SCPI Commands
To Optimize Throughput (HP BASIC)
! Clear the counter and interface
! Reset the counter
! Clear event registers and error queue
! Clear service request enable register
! Clear event status enable register
! Preset enable register and transition
! filters for operation and questionable
! status structures.
Programming Guide
! ASCII format for fastest throughput
! Set Ch 1 trigger level to 0 volts
! Use internal oscillator. If
! you want to use an external
! timebase, you must select it
! and turn off the automatic
! detection using:
! :ROSC:EXT:CHECK OFF
!
! calibration. The most recent
! calibration values are used in
! the calculation of frequency
! Turn off the counter display
! This greatly increases
! measurement throughput.
! Disable any post processing.
! Disable any printing operation
! Define the Trigger command
! This means the command FETC?
! does not need to be sent for
! every measurement, decreasing
! the number of bytes
! transferred over the bus.
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