Agilent Technologies 4294A Programming Manual page 60

Preparing For Accurate Measurement
User Calibration
volatile memory.
Lines 530 to 540 These lines indicate the message of completion and terminate the
program.
The following describes FNUser_cal, a data measurement subprogram for user calibration,
which is shown in lines 580 to 920.
Line 610 This line clears the status byte register.
Lines 620 to 630 These lines prompt for the connection of the standard for measurement
specified by Standard$ and wait for you to press the y key and the
return key.
Lines 650 to 660 These lines set the branch target for an SRQ interrupt to make the SRQ
interrupt effective.
Lines 670 to 740 These lines send the commands to execute the standard measurement
specified by Standard$.
Line 760 This line waits for the measurement to finish.
Lines 780 to 880 These lines check whether an error has occurred during measurement.
If no error occurred, then these lines indicate the message of
measurement completion and return 0 as the return value from the
subprogram. If an error occurred, then these lines indicate an error
message, execute the command that suspends data measurement, and
return -1 as the return value from the subprogram.
Lines 900 to 920 These lines are steps for any key other than the y key pressed in
response to line 630. These lines execute the command that suspends
date measurement and then return -1 as the return value from the
subprogram.
The following describes the subprogram Inp_data for entering the data shown in lines 980
to 1090.
Line 1000 This line returns to the start line of input if an error occurs due to an
invalid input or similar reason. This allows you to make entries again.
Lines 1020 to 1030 These lines prompt you to enter a data item specified by Mes$ and
wait for you to enter it.
Lines 1040 to 1060 These lines indicate the value entered and wait for you to press either
the y key or the n key to notify whether the input is correct or not.
Line 1070 This line returns to the start line of input if any key other than the y key
is pressed in response to line 1060.
60 Chapter 4