Making the Initial Run Data File
Transferring Data
Following the G2X recording of data, drive the vehicle to a safe location in order to transfer and review
the data. The G2X creates a new file and saves all data gathered from the start of logging (speed greater
than 25 MPH) to the end of logging (speed less than 25 MPH for 30 seconds). Each file is saved in a
.DDF format and is assigned a number based on date and time. Multiple files can be saved to the
Compact Flash card.
When a .DDF file is transferred to the DataLink program, it is then assigned a filename based on the
track, date and run number. At that time, it becomes a Run file. All of the lap data is contained within
the Runfile and is called a Lapfile. While it is not necessary to transfer your data after each run, it is
highly recommended, if at all possible.
Only one Run file can be transferred at a time, so you must perform the following procedure once for
each .DDF data file or recording.
1) If desired, dash lap time data can be reviewed before downloading.
2) Ensure that the red PWR LED is solid and not flashing before turning
the power off to the G2X. It should take 30 seconds after the vehicle
speed has gone below 25 MPH for the G2X to stop recording. When the recording has stopped,
turn off the power to the G2X and remove the compact flash card.
3) Open the DataLink program, and insert the compact flash card in to the USB card reader.
4) Initiate the transfer sequence by selecting the New Upload icon.
5) The Select Configuration dialog window will open. Select OK.
6) The Open dialog window will open. The first time data is
uploaded you will need to select the drive letter
corresponding to the compact flash reader.
7) There will be one .DDF file for each recording. In this
example, there are multiple .DDF files. If multiple files are
listed, select the desired file to download and select Open.
8) The file will download and the Session dialog window will open.
NOTE: The .DDF data files can only be transferred using the compact flash card and
reader. You cannot use the serial port to transfer data files from the G2X. The serial
port connection is used only for configuring the G2X.
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