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36 Using the HP E1459A Module
Figure 2-2. HP E1459A Data Available Event Detection Flowchart
Optionally, set the
Debounce Time
Enable the DAV Detection
Wait for the Event to Occur.
Do one of the following:
1. Poll the Port Summary Register
2. Poll the Status Subsystem
3. Use SRQ to interrupt
INPut
n
:DEBounce:TIMe <
time
>
[SENSe:]EVENt:PORT
n
:DAVailable:ENABle <
state
>
Set External Clock Source
INPut
n
:CLOCk[:SOURce]EXT
[SENSe:]EVENt:PSUMmary:DAV?
STATus:OPERation:PSUMmary:CONDition?
STATus:OPERation:PSUMmary:ENABle <
mask
>
STATus:OPERation:ENABle 512
*SRE128
HP E1459A Data Available Event Detection Flowchart
Read the data and clear the
event detector register
MEASure:DIGital:DATA
n
:
type
:VALue?
MEASure:DIGital:DATA
n
:
type
:BIT
m
?