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Chapter 11 Protocol Decoding
Press Exchange to select "SCL/SDA" or "SDA/SCL" to exchange the
sources of the current clock channel and data channel.
4． Specify whether the address information includes the "R/W" bit
For I2C bus, each frame of data starts with the address information. The address
information includes the read address and the write address. Press R/W
continuously to select whether the address information includes the "R/W" bit.
When "With" is selected, the "R/W" bit will be included in the address
information and located at the lowest bit; when "Without" is selected, the "R/W"
bit will not be included in the address information.
5． Display-related setting
Press Display to enter the display setting menu.
Set the display format
⚫
Press Format, rotate the multifunction knob
format of the bus data. Then, press down the knob to select it. You can also
press Format continuously or enable the touch screen to select it. The
available display formats of the bus data are "Hex", "Dec", "Bin", and
"ASCII".
Adjust the vertical position of the bus
⚫
Press Position, and then rotate the multifunction knob
vertical display position of the bus.
Set the label display
⚫
Press Label to enable or disable the label display of the I2C decoding bus.
When enabled, the bus label "I2C" will be displayed at the upper-left side of
the bus (when the bus display is enabled).
Event table
⚫
Press Event Table to enter the event table setting menu. The event table
displays the detailed decoding information in time order in the form of a
table, so as to better observe the long decoded data. The decoding
information includes the decoded data, the corresponding line number, time,
R/W bit and address information.
Open or close the event table: Press Event Table continuously to
➢
enable or disable the event table. When you enable the event table,
the following figure is displayed, as shown in Figure 11-6. You can also
enable the touch screen to tap the icon
the table to close the event table. Besides, when the operating status is
"STOP", you can also rotate the multifunction knob
specified line and view the corresponding decoding information.
MSO5000 User Guide
to select the display
to adjust the
at the upper-right corner of
to select a
RIGOL
11-15
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