Oscilloscope Reference Define the serial trigger on pattern
Define the serial trigger on pattern
From the Trig menu, select Serial Pattern Setup.
To use
Use these controls to define a NRZ pattern for the instrument to trigger on.
Pattern
1. In the Format drop-down list box, select Binary or Hex.
2. Click the Edit button and use the Serial Pattern Editor to define the pattern.
3. Click Enter.
Lock
Lock automatically finds and locks on to a long repeating pseudo-random bit sequence (PRBS). Pattern
Lock ena
bles the instrument to take sample s at specific locations in a data stream to define the trigger.
1. Click in the Bit Pattern Length entry box and use the multipurpose knobs to define the bit length of a
patter
ntosearchfor.
2. Click in the Shift Amount entry box and use the multipurpose knobs to define the number of bits to
shift
from the zero bit position of the initial lock.
3. Click the left or right arrows to increment from bit zero by the Shift Amount to redefine the pattern to
be us
ed as the trigger.
Set up FastFrame operation
Follow these steps to us e FastFrame mode:
1. Set up the Trigger control window to trigger on the signal of interest.
2. Adjust the horizontal and vertical controls to display a w aveform without any clipping.
3. Adjust the Resolution controls to set the number of samples you want to acquire with each acquisition.
4. From the Horiz/Acq menu se lect FastFrame Setup.
5. Configure the number of frames (Frame Count) you want to capture.
6. Touch the FastFrame button to turn on the FastFrame mode.
7. After the acquisition is complete, select the frame that you want to view under the Frame Viewing
section.
914 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series
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