User manual

Manual Common Features
© Vector Informatik GmbH Version 2.0 - 40 -
3.1 Time Synchronization
3.1.1 General Information
Time stamps
and events
Time stamps are useful when analyzing incoming or outgoing data or event
sequences on a specific bus.
Figure 39: Time stamps of two CAN channels in CANalyzer.
Generating
time stamps
Each event which is sent or received by a Vector network interface has an accurate
time stamp. Time stamps are generated for each channel in the Vector network
interface. The base for these time stamps is a common hardware clock in the device.
Figure 40: Common time stamp clock for each channel.
If the measurement setup requires more than one Vector network interface, a
synchronization of all connected interfaces and their hardware clocks is needed.
Due to manufacturing and temperature tolerances, the hardware clocks may vary in
speed, so time stamps of various Vector devices drift over time.