User`s guide

Triggering 4
InfiniiVision Oscilloscopes User’s Guide 107
Oscilloscope Controls the VPT1000, Synchronous Mode Monitoring
In addition to decoding FlexRay frames (which is also available in Asynchronous mode),
the synchronous mode also provides a time-correlated display of segment and slot timing
boundaries. This requires importing a FIBEX (Field Bus Exchange format) file that defines
the synchronous global FlexRay schedule.
PC Controls the VPT1000
For more advanced FlexRay protocol analysis, the VPT1000 can be controlled by a PC and
configured for either synchronous or asynchronous operation using appropriate FlexRay
protocol analysis software.
This type of system configuration provides higher-level FlexRay protocol analysis
measurements on the PC and time-correlated FlexRay measurements on the
oscilloscope’s display.
Setting Up the Oscilloscope and the VPT1000
For instructions on setting up the VPT1000’s IP address, see “VPT1000 IP address and
firmware updates” on page 416.
Connecting the Oscilloscope and the VPT1000
1 Press [Save/Recall]&Default Setup.
2 Connect power to the VPT1000. In about 10 seconds, the State LED will illuminate
green.
3 Connect the MSO communication cable (that has the ODU connector on one end;
supplied with Option FRS) between the VPT1000 and the oscilloscope’s digital input
connector on the oscilloscope’s rear panel. The ODU end of this cable connects to the
large, unlabeled connector on the VPT1000. (All of the VPT1000’s connectors are
ODU-type connectors.)
4 If the oscilloscope will control the VPT1000, the oscilloscope and the VPT1000 must
be connected using the special LAN cable provided with the VPT1000. If the VPT1000
will be controlled by a PC, connect this cable to the PC.
5 Connect the FlexRay input cable from the VPT1000 FlexRay1 port or FlexRay2 port to
the device Under test differential bus. This cable has an ODU-type connector on one
end and a DB-9 (DE-9) connector on the other.
6 Connect a differential probe (for example Agilent InfiniiMax 1130A Series probe) to
one of the oscilloscope analog channels and to the FlexRay differential bus.