Questionable Data Status Register; Using The Operation Status Register To Alert The Computer When; Operation Status Register - HP 53131A/132A 225 MHz Programming Manual

Chapter 3 Programming Your Universal Counter for Remote Operation
How to Program the Counter for Status Reporting

Questionable Data Status Register

:STAT:QUES:PTR 100; NTR 0
:STAT:QUES:ENABLE 100
*SRE 8

Using the Operation Status Register to Alert the Computer When

Measuring has Completed—
Example 4
The following command grouping illustrates how to use the Operation Status
register and the Status Byte register to alert the computer when measuring has
completed. This is useful if the Counter is making a long measurement. For
example, a frequency measurement with a gate time of 10 seconds. When the
measurement is complete, the Counter can alert the computer.
The first line tells the Counter to watch for a negative transition from true
(measuring) to false (non-measuring) of bit 4. This negative transition indicates
that the Counter has completed a measurement. The next line tells the Counter to
summarize the detected event (bit 4 of the Operation Status Register) in the Status
Byte Register. The command *SRE 128 tells the Counter to assert SRQ when the
summary bit for the Operation Status register is set to 1. A serial poll will return
192 when a measurement has completed.

Operation Status Register

:STAT:OPER:PTR 0; NTR 16
:STAT:OPER:ENABLE 16
*SRE 128
3-40
Detect transition from non-questionable to
questionable data.
Enable to detect for auto cal off.
Assert SRQ on Questionable Summary bit.
Detect transition from measuring to non-
measuring.
Enable to detect measuring.
Assert SRQ on Operation Summary bit.
Programming Guide