Teledyne LeCroy FlexRay Trigger, Decode and Physical Layer Test - Manual (Page 16)

Decode Setup Detail
The FlexRay Decode Setup Right-Hand Dialogs (which are contained in the Decode Setup dialog box when
FlexRay is selected as the Protocol to decode), with detail on the setup conditions, is shown in the images that
follow:
BitRate – Adjust the bit rate value here to match the bit rate on
the bus you are connected to. This bit rate selection is
dynamically linked to the decoding bit rate (they are always the
same value). Use the arrows to move through standard bit
rates (2.5, 5.0 or 10.0 Mb/s) and make a selection. Or, touch
the number twice (with a finger, or using a mouse) and open a
pop-up keypad and enter the value directly.
Channel – Select the appropriate channel to decode
depending if signal being decoded is coming from Channel A
or Channel B of the FlexRay bus. The channel selection only
drives the CRC computation. If the wrong channel is selected,
the decode still works, but exhibits CRC errors. In this case
simply switching the channel fixes the decoding.
Level Type and Level - The message decoding algorithm
setup is performed here. FlexRay is a tri-level signal and
requires 2 levels for the oscilloscope to distinguish between 1
and 0. The level is normally set up in %, and defaults to 70%
and 30%. To adjust the level, touch inside the number area to
highlight the box title in yellow and then use the oscilloscope
front panel Adjust knob to adjust. Or touch inside the number
area twice and select a value using the pop-up numeric
keypad. Switching the level type to Absolute allows for entry of
voltage levels instead of percentages
The set Level appears as a dotted horizontal line across the
oscilloscope grid.
If initial decoding indicates a number of error frames, make
sure that the level is set to a reasonable value.
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FlexRay-TDP-OM-E Rev A