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Remote control commands
R&S
®
RTA4000
613
User Manual 1335.7898.02 ─ 08
BUS<b>:SSPI:SSIZe
<SymbolSize>
Sets the word length, the number of bits in a message.
Suffix:
<b>
.
1..4
Parameters:
<SymbolSize>
Range:
4 to 32
Increment: 1
*RST:
8
Default unit: Bit
17.11.2.3
SPI - trigger
To configure the protocol trigger, make sure to set first:
●
BUS
●
SBUS1 | SBUS2
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TRIGger:A:SOURce:SPI
<SpiSource>
Selects the MOSI or the MISO line as trigger source. Only relevant, if both lines are
used and configured.
Parameters:
<SpiSource>
MOSI | MISO
TRIGger:A:SPI:MODE
<Mode>
Specifies the trigger mode for the SPI protocols (with and without CS).
Parameters:
<Mode>
BSTart | BEND | NTHBit | PATTern
BSTart
Burst start, sets the trigger event to the start of the frame. The
frame starts when the chip select signal CS changes to the
active state.
BEND
Burst end, sets the trigger event to the end of the message.
NTHBit
Sets the trigger event to the specified bit number. To define the
bit number, use
Serial bus analysis