Bosch C 70 Manual page 81

13.3.1 USB device handling hints
13.3.2 Troubleshooting
Bosch Motorsport
NOTICE
For more detailed descriptions and instructions refer to the Win-
Darab V7 manual.
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 C 70 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 C 70 is powered up, the
C 70 still records data.
If the USB device is unplugged and re-inserted for > 4 s while the C 70 is powered up or a
different USB device is plugged in, the C 70 restarts. In this case, the C 70 is not opera-
tional for 1.5 s.
When no data on the USB device is recorded:
Configure the measurement label usb_mediastate on a RaceCon measurement view or
on a C 70 display page.
The value of usb_mediastate reflects the operating condition of the USB bus:
State
0: Wait: Device not found The USB device is not found (also: waiting for re-plug stick).
1: Wait: Device detected
2: Ok: Media installed
3: Stop: Device unplugged The USB device has been removed.
4: Ok: Media access
Data Logger C 70 Manual
Description
No USB device inserted.
USB device is defect.
No electrical connection or wiring harness problem.
USB software upgrade not activated (Purchase of unlock code
needed).
An USB device is found, but not yet installed.
The USB device is found and is operational (idle).
This does not imply that recording data is written!
The C 70 performs a restart when an USB device is re-plugged
in.
Data is currently read from/written to the USB device.
Recording | 13
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