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RIGOL Chapter 5 To Trigger the Oscilloscope
5-38 MSO2000A/DS2000A User’s Guide
--press Stop Bit to select “1 bit” or “2 bit”;
--press Even-Odd to select “None”, “Odd” or “Even”.
The oscilloscope will determine error frame according to the preset parameters.
Check Error: trigger when check error is detected. When this trigger condition is
selected, press Even-Odd to select “Odd” or “Even”. The oscilloscope will
determine check error according to the preset parameters.
Data: trigger on the last bit of the preset data bits. When this trigger condition is
selected:
--press Data Bits to select “5 bit”, “6 bit”, “7 bit” or “8 bit”;
--press Data and input the data value according to the setting in Data Bits and
the ranges are from 0 to 31, from 0 to 63, from 0 to 127 and from 0 to 255
respectively.
Baud Rate:
Set the baud rate of data transmission (equal to specifying a clock frequency). Press
Baud to set the desired baud rate to 2400 bps, 4800 bps, 9600 bps (default), 19200
bps, 38400 bps, 57600 bps, 115200 bps and user-def ined. When “User” is selected,
press Setup and use or the navigation knob to set a more specific value from 1
to 900000 with an adjustment step of 1 bps.
Trigger Mode:
Press Sweep to open the trigger mode list and select “Auto”, “Normal” or ”Single”.
For the details, please refer to “
Trigger Mode”. The corresponding status light of
the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (trigger holdoff and noise rejection)
under this trigger type.
Note: Noise rejection is grayed out and disabled automatically when the signal
source is set to any channel of D0-D15.
Trigger Level:
Use TRI GGER
LEVEL to modify the level. For the details, please refer to the
introduction of “
Trigger Level”.
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