(Not recommended) Event information when event occurs
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
For error events, the error message is also displayed. For pin status events, the pin that changed value and its value are also displayed.
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
instrcallback as a template to create callback functions that
suit your specific application needs.
Not recommended starting in R2019b