User manual

Acquire the Sign
al
SPI Bus
To acquire data from an SPI bus, you need to also set up these items:
1. If you selected SPI, push De fine Inputs and
the appropriate side menu choices.
Bus B1
SPI
Define
Inputs
Thresholds
Configure
B1 Label
SPI
Bus
Display
Event
Table
You can set the Framing to SS (Slave
Select)ortoIdleTime.
You can assign the predefined SCLK, SS,
MOSI,orMISO signals to any channel.
2. Push Configu re and the desired side menu
choices.
3. Push SCLK to set the edge of the signal to
match the SPI bus being acquired.
SCLK
4. S et the level of the SS, MOSI, and MISO
signals to match the SPI bus.
SS
Active
High
Active Low
Active High means that a signal is considered
active when the signal is greater than the
threshold value.
MOSI
Active
High
Active Low
Active Low means that the signal is
considered active when the signal is lower
than the threshold value.
MISO
Active
High
Active Low
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72 MDO3000 Series Oscilloscopes User Manual