instrcallback
(To be removed) Event information when event occurs
This serial
object function will be removed in a future release. Use
serialport
object functions instead. For more information on updating your code, see Compatibility Considerations.
Syntax
instrcallback(obj,event)
Description
instrcallback(obj,event)
displays a message
that contains the event type, event
, the time the event occurred, and
the name of the serial port object, obj
, 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.
Examples
The following example creates the serial port object, s
, on a
Windows® platform. It configures s
to execute
instrcallback
when an output-empty event occurs. The event
occurs after the *IDN?
command is written to the instrument.
s = serial('COM1'); set(s,'OutputEmptyFcn',@instrcallback) fopen(s) fprintf(s,'*IDN?','async')
OutputEmpty event occurred at 08:37:49 for the object: Serial-COM1.
Read the identification information from the input buffer and end the serial port session.
idn = fscanf(s);
fclose(s)
delete(s)
clear s
Tips
Use instrcallback
as a template to create callback functions that
suit your specific application needs.