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Serial bus analysis
R&S
®
RTA4000
323
User Manual 1335.7898.02 ─ 08
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Busy: a busy state indicates that the RT or the subsystem is not able to transfer
data. A logic 1 indicates a presence of a busy condition and logic 0 indicates its
absence.
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Subsystem Flag: flags a subsystem fault. A logic 1 indicates a presence of a flag
and logic 0 indicates its absence.
●
Dynamic Bus Control Acceptance: a logic 1 indicates acceptance of a dynamic bus
control and a logic 0 a rejection.
●
Terminal Flag: flags an RT fault condition. A logic 1 indicates a presence of a flag
and logic 0 indicates its absence.
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Parity: checks if there are bit errors during the transmission. The total number of
logic 1 bits for the word (sync bits not included) shall be odd.
For comfortable analysis, you can load an editable label list, to interpret transferred
numeric values as meaningful text labels.
13.8.2
MIL-STD-1553 configuration
The correct setup of the protocol parameters and the threshold is the condition for
decoding the signal.
To set up and decode an MIL-STD-1553 signal
1. Press the [Protocol] key in the Analysis area of the front panel.
2. Select the bus that you want to use: B1, B2, B3 or B4.
3. Select the "Bus Type" = MIL-STD-1553.
4. Select "Configuration".
5. Select the "Source", the channel to which the input signal is connected.
6. Set the "Threshold High" and "Threshold Low".
7. Set the other signal parameters according to the signal characteristics. All settings
are described below.
8. In the "Bus" menu, enable "Decode".
MIL-STD-1553 (option R&S
RTA-K6)