Spi Trigger - Rigol MSO4000 User Manual

5 To Trigger the Oscilloscope

SPI Trigger

Trigger on the data pattern on the specified edge. When using the SPI trigger, you
need to specify the SCL, SDA and CS data sources. Below is the sequence chart of
SPI bus data transmission.
Processor 1 [SPI Host ]
Serial Data Line Buffer
(SPIxRXB)
Shift Register
SPIxSR
MSB
Serial Transmission Buffer
(SPIxTXB)
SPI Buffer
SPIxBUF
Trigger Type:
Press Type to select "SPI". At this point, the trigger setting information as shown in
the figure below is displayed at the upper right corner of the screen.
Source Selection:
Press SCL, SDA and CS to specify the data sources of SCL, SDA and CS respectively.
CH1 to CH4 or D0-D15 can be selected as the
source is displayed at the upper right corner of the screen.
Trigger Condition:
Press When to select the desired trigger condition.
CS: trigger when the CS channel is 1 at high level or low level. After this trigger
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MSO4000D/S4000 User's Guide
SDOx
SDIx
LSB
Serial Clock
SCKx
Processor 2 [SPI Slave]
SDIx
Serial Data Line Buffer
SDOx
Shift Register
MSB
Serial Transmission Buffer
SCKx
Trigger Source. The current trigger
RIGOL
(SPIxRXB)
SPIxSR
LSB
(SPIxTXB)
SPI Buffer
SPIxBUF
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