Kvaser Memorator R SemiPro User’s Guide
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5.9
CAN bus overrun
Under extremely heavy load with high signaling rates and long bursts of messages,
the Kvaser Memorator R SemiPro may lose messages. This loss is a rare
occasion, and if such a loss occurs the setup displays a notification message when
the file is extracted. Several of the file formats that support this feature also
indicate when the overrun occurred. (See the help section in Kvaser Memorator
Tools for details about file formats.)
To avoid losing important messages during logging, filters can be
used. This will decrease the load on the Kvaser Memorator R
SemiPro and ensure that important information is not lost.
5.10
Daisy-chaining several interfaces
You can daisy chain several Kvaser Memorator R SemiPro units to gain additional
logging capacity. To do this,
•
Connect the trigger output of one device to the trigger input of the next
device.
•
Using the Kvaser Memorator Tools, configure the trigger output of the first
device to emit a pulse when the disk becomes full.
•
Configure the trigger input of the second device to start logging when a
falling edge is detected. Set the post-trigger time to 0 (infinite) and the
pre-trigger time to 1 second.
You now have a setup where the second unit starts logging when the first one
becomes full.
Kvaser AB, Mölndal, Sweden — www.kvaser.com
