Rohde & Schwarz RTE - SPI Decode Results; Triggering on SPI

Protocol analysis
R&S
®
RTE
546User Manual 1326.1032.02 ─ 20
The bit pattern editor helps you to enter the pattern, see Chapter 13.1.5, "Bit pattern
editor", on page 521.
Remote command:
TRIGger<m>:SPI:MOSipattern on page 1465
TRIGger<m>:SPI:MISopattern on page 1465
Position ← MOSI and MISO data conditions
Operator for the data position. You can define an exact position, a position range, or let
the position undefined ("Any").
Remote command:
TRIGger<m>:SPI:DPOPerator on page 1464
Index min, Index max ← MOSI and MISO data conditions
The effect of data positioning depends on the Search mode. It sets the number of bits
or words before the first word of interest. These offset bits/words are skipped. If the
position operator defines a range, the first and the last bit/word of interest are defined.
The index 0 is associated with the first data bit or word.
Remote command:
TRIGger<m>:SPI:DPOSition on page 1464
TRIGger<m>:SPI:DPTO on page 1465
Search mode ← MOSI and MISO data conditions
Defines how the specified data pattern is searched:
"Word-aligned"
The pattern is matched only at word boundaries.
"Bit-aligned"
Bit-by-bit: the pattern can start at any position in the message.
Remote command:
TRIGger<m>:SPI:PALignment on page 1464
13.3.3.2 Triggering on SPI
Prerequisites: A bus is configured for the SPI signal to be analyzed.
1. Press the [PROTOCOL] key and select the "Trigger" tab.
2. Press the "Select" button. The "Source" button is shown.
3. Select the serial bus that is set to SPI.
4. Select the "Trigger type".
5. For more complex trigger types, enter the data pattern conditions
For details, see Chapter 13.3.3, "SPI trigger", on page 543
13.3.4 SPI decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1. In the "Protocol" dialog > "Decode" tab, enable "Decode".
SPI bus (option R&S
RTE-K1)