Configure I2C Controller Board Communication

You must have either a Total Phase® Aardvark™ or an NI™ USB-845x installed to use the aardvark or ni845x interface.

Configure Total Phase Aardvark

To use the I2C interface with the Aardvark controller board in MATLAB®, you must have the necessary files installed.

Ensure that the Aardvark controller board is installed properly by scanning for boards physically connected to your computer.

list = aardvarklist
list = 

  1×2 table

                 Model             SerialNumber
         ______________________    ____________

    1    "Total Phase Aardvark"    "2239143731"

Connect to the Aardvark controller board in MATLAB by creating an aardvark object using the aardvark function.

controller = aardvark(list.SerialNumber(1))
controller = 

  Aardvark with properties:

                   Model: "Total Phase Aardvark"
            SerialNumber: "2239143731"
    AvailableDigitalPins: ["Pin1"    "Pin3"    "Pin5"    "Pin7"    "Pin8"    "Pin9"]

  Show all properties, functions

You can see the model name and serial number of the Aardvark. For a full list of properties, click Show all properties in the object output display. For information about each of these properties, see Properties.

Configure and communicate with the digital I/O pins on the controller board using the following functions.

To connect to an I2C peripheral device connected to the Aardvark, you must use the device function.

Configure NI USB-845x

To use the I2C interface with the NI USB-845x controller board, you must have a driver installed for it.

If you do not have the NI-845x driver installed, follow the instructions at Install Instrument Control Toolbox Support Package for National Instruments NI-845x I2C/SPI Interface. If you already have the latest driver installed, you do not need to download this support package.

Ensure that the NI USB-845x controller board is installed properly by scanning for boards physically connected to your computer.

list = ni845xlist
list = 

  1×2 table

             Model        SerialNumber
         _____________    ____________

    1    "NI USB-8452"     "01F26E0A"

Connect to the NI USB-845x controller board in MATLAB by creating an ni845x object using the ni845x function.

controller = ni845x(list.SerialNumber(1))
controller = 

  NI845x with properties:

                   Model: "NI USB-8452"
            SerialNumber: "01F26E0A"
    AvailableDigitalPins: ["P0.0"    "P0.1"    "P0.2"    "P0.3"    "P0.4"    "P0.5"    "P0.6"    "P0.7"]

  Show all properties, functions

You can see the model name and serial number of the NI USB-845x. For a full list of properties, click Show all properties in the object output display. For information about each of these properties, see Properties.

Configure and communicate with the digital I/O pins on the controller board using the following functions.

To connect to an I2C peripheral device connected to the NI USB-845x, you must use the device function.

See Also

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