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RIGOL Chapter 11 Protocol Decoding
11-34 MSO7000/DS7000 User Guide
âš« When you select the analog channel (CH1-CH4), press Threshold, then
rotate the multifunction knob
or use the pop-up numeric keypad to set
the threshold of the source channel. When you modify the threshold of the
channel, a dotted line displaying the current threshold level is displayed on
the screen. The dotted line disappears in about 2 s after you stop modifying
the threshold.
4. Signal setting
Press Settings to enter the signal setting menu.
âš« Channel selection
Press Channel continuously to select a channel ("A" or "B") that matches
the actual FlexRay bus signal.
âš« Specify the signal rate
Press Baud to open the baud rate list (2.5 Mbps, 5 Mbps, and 10 Mbps),
and select a preset baud rate that matches the actual FlexRay bus signal.
You can also press Baud continuously, then rotate the multifunction knob
at a small step value or use the pop-up numeric keypad to set the
desired baud rate.
âš« Set the signal type
Press Signal and rotate the multifunction knob to select a signal type
that matches the actual FlexRay bus signal. Press down the knob to select it.
You can also press Signal continuously or enable the touch screen to select
it. The available signal types include BP, BM, and RX/TX.
âš« Sample Position:
Sample position is a point within a bit’s time. The oscilloscope samples the
bit level at this point. The sample position is represented by the proportion
of "the time from the start of the bit to the sample position" to the "bit time",
as shown in the figure below.
Figure 11-12 Sample Position
Press More → Sample Position, then rotate the multifunction knob
or use the pop-up numeric keypad to set the sample position. The settable
range is from 10% to 90%.
One Bit
60%
70%
80%
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