Direct Interface Communication

Communication using interfaces

With direct interface communication, there are common steps that comprise the basic workflow. You create an object of the interface type you are using, and connect to the instrument. Setting properties is optional, but common. You read and write data, and disconnect and clean up.


fclose Disconnect interface object from instrument
fopen Connect interface object to instrument
fprintf Write text to instrument
fread Read binary data from instrument
fscanf Read data from instrument, and format as text
fwrite Write binary data to instrument
readasync Read data asynchronously from instrument
stopasync Stop asynchronous read and write operations
bluetooth Create Bluetooth object
i2c Create I2C object
spi Create SPI object
tcpip Create TCPIP object
udp Create UDP object
serial Create serial port object
get Instrument object properties
set Configure or display instrument object properties
propinfo Instrument object property information
instrhwinfo Information about available hardware
instrreset Disconnect and delete all instrument objects
clear Remove instrument objects from MATLAB workspace
delete Remove instrument objects from memory
binblockread Read binblock data from instrument
binblockwrite Write binblock data to instrument
disp Display instrument object summary information
fgetl Read line of text from instrument and discard terminator
fgets Read line of text from instrument and include terminator
flushinput Remove data from input buffer
flushoutput Remove data from output buffer
inspect Open Property Inspector
instrcallback Display event information when event occurs
instrfind Read instrument objects from memory to MATLAB workspace
instrfindall Find visible and hidden instrument objects
instrhelp Help for instrument object type, function, or property
instrid Define and retrieve commands that identify instruments
instrnotify Define notification for instrument events
isvalid Determine whether instrument objects are valid
length Length of instrument object array
load Load instrument objects and variables into MATLAB workspace
methods Class method names and descriptions
obj2mfile Convert instrument object to MATLAB code
query Write text to instrument, and read data from instrument
record Record data and event information to file
save Save instrument objects and variables to MAT-file
scanstr Read data from instrument, format as text, and parse
serial Create serial port object
size Size of instrument object array
tcpip Create TCPIP object
tmtool Open Test & Measurement Tool
udp Create UDP object


Test and Measurement Tool Control oscilloscopes and other instruments
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