Acquire the Sign
al
Using Roll Mode
Roll mode gives a display similar to a strip chart recorder for low-frequency signals. Roll mode lets you see acquired data
points without waiting for the acquisition of a complete waveform record.
Roll mode is enabled when the trigger mode is auto and the horizontal scale i s set to 40 ms/division or slower.
Quick Tips
Roll mode is disabled when you switch to Average acquisition mode, use digital channels, use math waveforms, turn on
abus,switc
h to Normal trigger, or set the horizontal scale to 20 ms per division or faster.
Zoom is disa
bled when you use Roll mode.
Push Run/Stop to halt Roll m ode.
SettingUpaSerialorParallelBus
Your oscilloscope ca n decode and trigger on:
I
2
C and SPI serial buses if the DPO 2EMBD application module is installed
CAN and LIN serial buses if the DPO2AUTO application module is installed
RS-232, RS-422, RS-485, and UART serial buses if the DPO2COMP application module is installed
Parallel buses if you are using an MSO2000B series oscilloscope
(See page 13, Application Module Free Trial.)
Using
Buses in Two Steps
To quickly use serial bus triggering:
1. Push B1 or B2 and enter parameters of
the bus to trigger on.
You can separately use B1 and B2 to
view two different buses.
MSO2000B and DPO2000B Series Oscilloscopes User Manual 49
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