RIGOL Chapter 7 Protocol Decoding
7-14 DS4000E User’s Guide
When modifying the threshold of the clock channel, a dotted line displaying
the current threshold level is displayed on the screen (in the same color as
the channel). It disappears in about 2 s after you stop modifying the
threshold.
Set the SDA
Use the same method to select the data channel (SDA) and set the
threshold.
4. Specify the display format
Press Format and turn the multi-function knob to set the display format of
the bus data to Hex, Decimal, Binary or ASCII. You can also press Format
continuously to switch the current display format.
Note: When the event table is turned on, the decoding data in the event table
will also be displayed in the format selected here.
5. Adjust the vertical offset
Press Offset and turn the multi-function knob to adjust the vertical position
of the bus. Pressing the knob can quickly reset the vertical offset (zero).
6. 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 Include R/W; when “Open” is selected, the "R/W" bit will be included in
the address information and be at the lowest bit; when “Close” is selected, the
"R/W" bit will not be included in the address information.
7. View the event table
The event table displays the detailed information of the decoding in table form
to view relatively longer decoded data.
Note: You can only view the event table and export the decoded data when the
display of the corresponding bus is turned on.
When BusStatus is set to “ON”, press Event Table to enter the event table
submenu. In this submenu, you can perform the following operations.
1) Press Event Table to turn on or off the event table. When the event table is
turned on, the interface is as shown in
Figure 7-4.
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