SINGLE_TRIGGER_MSO2X

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Sets the scope into single trigger mode. Requires a CONNECT_MSO2X block to create the connection. Tested on MSO22 and MSO24. Params: connection : VisaConnection The VISA address (requires the CONNECTION_MSO2X block). Returns: out : String Trigger

Python Code

from typing import Optional
from flojoy import VisaConnection, flojoy, String, DataContainer


@flojoy(inject_connection=True)
def SINGLE_TRIGGER_MSO2X(
    connection: VisaConnection,
    input: Optional[DataContainer] = None,
) -> String:
    """Sets the scope into single trigger mode.

    Requires a CONNECT_MSO2X block to create the connection.

    Tested on MSO22 and MSO24.

    Parameters
    ----------
    connection : VisaConnection
        The VISA address (requires the CONNECTION_MSO2X block).

    Returns
    -------
    String
        Trigger
    """

    # Retrieve oscilloscope instrument connection.
    scope = connection.get_handle()
    scope.write("FPAnel:PRESS SINGleseq")

    return String(s="Trigger once.")

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Example App

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This app uses the Tektronix tm_measure library to decode I2C using a Tektronix MSO24 oscilloscope.

First the necessary blocks were added:

• 1 CONNECT_MSO2X
• 1 I2C_TRIGGER_MSO2X
• 1 SINGLE_TRIGGER_MSO2X
• 1 DECODE_I2C_MSO2X
• 1 TEXT_VIEW

Each of these blocks must change the connection parameter to the correct instrument. The parameters were changed to match the setup: the clock_channel and data_channel parameters were changed to the proper analog or digital channel. The I2C_TRIGGER_MSO2X parameters were changed to trigger on the corrent signal. For example:

• condition = address
• addr_bits = 7
• addr = 0010

therefore the actual address will be XXX0010 where X corresponds to a wildcard (0 or 1).

The blocks were connected as shown and the app was run.