Protocol analysis
R&S
®
RTP
541User Manual 1337.9952.02 ─ 12
13.3.3 SPI trigger
13.3.3.1 SPI trigger
Access: [Protocol] > "Shortcuts" tab > "Setup trigger"
Make sure that:
●
In the [Protocol] > "Setup" tab:
– The correct "Protocol" is selected.
– The data sources of the serial bus are channel signals.
●
In the "Trigger" > "Setup" tab:
– The "Trigger on" = "Single event"
– The trigger "Source" = "Serial bus".
– The correct "Serial bus" is selected.
Trigger type
Selects the trigger type for SPI analysis.
"Frame start
(SS)"
Trigger on the start of the frame when the slave select signal SS
changes to the active state. This trigger type is available if Frame
condition is set to "SS".
"Frame start
(Timeout)"
Triggers on the start of the frame when the clock idle time exceeds
the "Timeout" time. This trigger type is available if Frame condition is
set to "CLK timeout".
"MOSI"
Sets the trigger to a specified data pattern expected on the MOSI
line.
See: "MOSI and MISO data conditions" on page 542.
"MISO"
Sets the trigger to a specified data pattern expected on the MISO
line.
See: "MOSI and MISO data conditions" on page 542.
SPI bus (option R&S RTP-K1)
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