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Protocol Decoding
Specify the Signal Rate
Click or tap the drop-down button Baud to select a FlexRay baud rate that matches
the FlexRay bus signal. The available baud rate includes "2.5 Mbps", "5 Mbps", and
"10 Mbps".
Set the Signal Type
Click or tap the drop-down button Signal to select a signal type that matches the
actual FlexRay bus signal. The available signal types include "BP", "BM", and "RX/
TX".
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 point" to the "bit time", as shown in the figure
below.
Click or tap the input field of Sample Position to set it by using the pop-up numeric
keypad. You can also use the corresponding multipurpose knob to set the value. The
settable range is from 10% to 90%.
15.8.2
Display-related Settings
In Decode menu, set the following display-related parameters.
Set the Display Format
Click or tap the drop-down button of Format to select the display format of the bus
data. The available options include "Hex", "Dec", "Bin", and "ASCII".
Set the Label Display
Click or tap the Label on/off switch to enable or disable the label display of the
decoding bus. When enabled, the bus label will be displayed at the upper-left side of
the bus (when the bus display is enabled). The label shows the current bus type.
HDO4000 User Guide
220
One Bit
60%
70%
80%
Figure 15.22 Sample Position
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