Rohde & Schwarz RTP044 - Page 1590

Remote control commands
R&S
®
RTP
1590User Manual 1337.9952.02 ─ 12
BUS<m>:SPI:FRCondition <FrameCondition>
Defines the start of a frame. A frame contains a number of successive words, at least
one word.
Suffix:
<m>
.
1..4
Selects the serial bus.
Parameters:
<FrameCondition> SS | CLKTimeout
SS
Start and end of the frame is defined by the active state of the
slave select signal, see BUS<m>:SPI:SSELect:POLarity.
CLKTimeout
Defines a timeout on the clock line SCLK as limiter between two
frames. The timeout condition is used for SPI connections with-
out an SS line.
*RST: SS
BUS<m>:SPI:TIMeout <ClockTimeout>
Defines a timeout on the clock line SCLK as limiter between two frames. The timeout
condition is used for SPI connections without an SS line.
Suffix:
<m>
.
1..4
Selects the serial bus.
Parameters:
<ClockTimeout> Range: 50E-9 to 10
Increment: 1E-6
*RST: 1E-3
Default unit: s
22.17.4.2 SPI trigger
The trigger suffix <m> is always 1 and can be omitted. It selects the trigger event: Only
the A-trigger is available for triggering on serial buses.
To trigger on a serial bus, make sure that:
●
TRIGger<m>:SOURce[:SELect] is set to SBUS.
●
The sources of the serial bus are channel signals: use BUS<m>:...:SOURce
commands.
●
Decoding is enabled: BUS<m>[:STATe] is set to ON.
TRIGger<m>:SPI:MODE...............................................................................................1591
TRIGger<m>:SPI:PALignment.......................................................................................1591
TRIGger<m>:SPI:DPOPerator.......................................................................................1592
TRIGger<m>:SPI:DPOSition......................................................................................... 1592
Protocols