17 | Recording and Telemetry
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DDU 10
Bosch Motorsport
20. Drag the desired measurement channel from the Channel list and drop it into the
measurement data window. The measurement channel‘s graph is displayed.
17.5.2 USB device handling hints
Using the USB device
Always plug the USB device into vehicle before power up to ensure that all measurement
data is stored on the USB device.
If the USB device is plugged in after recording has started, only the current data is saved.
Data recorded on the DDU 10 before the USB device is plugged in will not be saved.
Removing the USB device
Always power off the system before unplugging the USB device!
If the USB device is unplugged while recording is active, parts of the measurement data
may be missing.
If the USB device is unplugged and re-inserted for < 4 s while the DDU 10 is powered up,
the DDU 10 still records data.
If the USB device is unplugged and re-inserted for > 4 s while the DDU 10 is powered up
or a different USB device is plugged in, the DDU 10 restarts. In this case, the DDU 10 is not
operational for 1.5 s.
17.5.3 Troubleshooting
When no data on the USB device is recorded:
Configure the measurement label
usb_mediastate
on a RaceCon measurement view or
on a DDU 10 display page.
The value of
usb_mediastate
reflects the operating condition of the USB bus:
State
Description
0: Wait: Device not found
The USB device is not found (also: waiting for re-plug stick).
No USB device inserted.
USB device is defect.