User manual

Protocol Analysis
R&S
®
RTO
309User Manual 1316.0827.02 ─ 06
Bus plus 2.5 V
Threshold high
Threshold low-A
+A
Bus minus
Idle 0 1 0 1 Idle
Single-endedDifferential
BP - BM
+2A
-2A
0 V
Threshold high
Threshold low
2.5 V
Threshold high
Threshold low
For measurements inside the FlexRay node (with "Source type" = "Logic"), each line
requires its threshold level.
There are two ways to set the thresholds: selection of a predefined value, or direct entry
of a value.
●
"Preset"
Selects default threshold voltages from a list. The predefined values depend on the
selected source type. The value is set to "Manual" if at least one threshold was
entered directly.
●
"Threshold high" and "Threshold low"
Upper and lower levels for single-ended or differential source types. You can enter
the values directly in the fields.
●
"Threshold data" and "Threshold enable"
Levels for data and enable line in case of logic source type. You can enter the values
directly in the fields.
SCPI command:
BUS<m>:FLXRay:PRSingle on page 719
BUS<m>:FLXRay:PRDiff on page 720
BUS<m>:FLXRay:PRLogic on page 720
BUS<m>:FLXRay:THReshold<n> on page 718
BUS<m>:FLXRay:THData on page 719
BUS<m>:FLXRay:THENable on page 719
Polarity
Selects the wire on which the bus signal is measured in case of "Single-ended" mea-
surement: "Bus plus" or "Bus minus". The setting affects the digitization of the signal.
SCPI command:
BUS<m>:FLXRay:POLarity on page 721
FlexRay (Option R&S
RTO-K4)