Rohde & Schwarz RTE Series - Page 619

Protocol analysis
R&S
®
RTE
619User Manual 1326.1032.02 ─ 20
Remote command:
BUS<m>:FLXRay:SRCType on page 1558
Data
Sets the input channel of the bus signal, or of the data line for a "Logic" source type.
Usually, the source is one of the analog channels. Reference and math waveforms are
only available if the trigger source is one of the input channels but not the serial bus.
If the source type is "Logic", digital channels can be used (MSO option R&S RTE-B1 is
required). Digital and analog channels cannot be used at the same time in a bus.
Remote command:
BUS<m>:FLXRay:SOURce<n> on page 1559
Enable
Sets the input channel of the enable line if there is a "Logic" source type. The enable
line transfers the control signal of the bus guardian to the bus driver. None, or one of
the analog channels can be used. Reference and math waveforms are only available if
the trigger source is one of the input channels but not the serial bus.
Alternatively to analog channels, digital channels can be used if MSO option
R&S RTE-B1 is installed. Digital and analog channels cannot be used at the same time
in a bus.
Remote command:
BUS<m>:FLXRay:SOURce<n> on page 1559
Thresholds
Threshold values are used for digitization of the signal.
For measurements on a FlexRay bus, two thresholds are required to distinguish the
three possible states of the signal - high, low and idle. If the signal value on the line is
higher than the upper threshold, the signal state is high. Otherwise, the signal state is
considered low if the signal value is below the lower threshold. If the value is between
the threshold, the signal is in idle state.
FlexRay (option R&S RTE-K4)