Rohde & Schwarz RTM20 Series, Руководство пользователя, Страница: 172 / 499

Protocol Analysis
R&S
®
RTM20xx
157 User Manual 1317.4726.02 ─ 01
See:
​
"To set the logic threshold for analog channels" on page 148
Now you can disply the decoded signal and the frame table with results.
The display of the decoded data is described in
​
"To configure decoding and data dis-
play" on page 149.
11.2.2.2 SPI/SSPI Configuration Settings
Access: PROTOCOL > "Bus type" = "SPI or SSPI" "Configuration"
Source .........................................................................................................................157
Chip Select, Clock, Data .............................................................................................157
Active ..........................................................................................................................157
Slope ...........................................................................................................................158
Time Out .....................................................................................................................158
First Bit ........................................................................................................................158
Symbol Size ................................................................................................................158
Find Level ....................................................................................................................158
Source
Toggles the lines of the SPI bus. Each line has to be configured. Select a line and adjust
the settings:
●
CS (Chip Select, SPI only): Select the input channel and the "Active" state.
●
Time (SSPI only): Set the "Time Out" (instead if chip select).
●
Clk (Clock): Select the input channel and the "Slope".
●
Data: Select the input channel and the "Active" state.
Chip Select, Clock, Data
Select the input channels of the corresponding line. Make sure to select the "Source"
before you assign the channel.
If the MSO option R&S RTM-B1 is installed, digital channels can also be used as source.
Remote command:
​
BUS<b>:
​
SPI:
​
CS:
​
SOURce
​
on page 377
​
BUS<b>:
​
SPI:
​
CLOCk:
​
SOURce
​
on page 378
​
BUS<b>:
​
SPI:
​
DATA:
​
SOURce
​
on page 0
​
BUS<b>:
​
SSPI:
​
CLOCk:
​
SOURce
​
on page 386
​
BUS<b>:
​
SSPI:
​
DATA:
​
SOURce
​
on page 0
Active
Selects whether transmitted data or the chip select signal is high active (high = 1) or low
active (low = 1).
For CS, the default is low active.
SPI/SSPI Bus (Option R&S RTM-K1)