External Interfaces Reference |
Display event information when an event occurs
Syntax
Arguments
obj |
An serial port object. |
event |
The event that caused the callback to execute. |
Description
instrcallback(obj,event)
displays a message that contains the event type, the time the event occurred, and the name of the serial port object that caused the event to occur.
For error events, the error message is also displayed. For pin status events, the pin that changed value and its value are also displayed.
Remarks
You should use instrcallback
as a template from which you create callback functions that suit your specific application needs.
Example
The following example creates the serial port objects s
, and configures s
to execute instrcallback
when an output-empty event occurs. The event occurs after the *IDN?
command is written to the instrument.
The resulting display from instrcallback
is shown below.
Read the identification information from the input buffer and end the serial port session.
get (serial) | instrfind |
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