Source Setting; Display-Related Settings - Rigol DHO900 User Manual

Protocol Decoding
15.3.1

Source Setting

Set the clock channel source and the threshold
• Click or tap the drop-down button of CLK to select the desired source of the
clock channel. Available sources include analog channels CH1-CH4.
• Click or tap the input field of SCL Thre and use the pop-up numeric keypad to
set the threshold of the clock channel. You can also use the corresponding
multipurpose knob to set the value.
When you modify the threshold of the clock channel, a dotted line displaying the
current threshold level is displayed on the screen. It disappears in about 2 s after
you stop modifying the threshold.
Set the data channel source and the threshold
• Click or tap the drop-down button of SDA to select the desired source of the
data channel. Available sources include analog channels CH1-CH4.
• Click or tap the input field of SDA Thre and use the pop-up numeric keypad to
set the threshold of the data channel. You can also use the corresponding
multipurpose knob to set the value.
Exchange sources
Select "SCL/SDA" or "SDA/SCL" in Exchange to exchange the sources of the current
clock channel and data channel.
Specify whether the address information includes the "R/W" bit
For I2C bus, each frame of data starts with the address information (read address and
write address).
Select "Without" or "With" in R/W to decide whether the address information
includes the "R/W" bit. When "With" is selected, the "R/W" bit will be included in the
address information; when "Without" is selected, the "R/W" bit will not be included
in the address information.
15.3.2

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 and event table. The available options include "Hex", "Dec", "Bin", and "ASCII".
DHO800 User Guide
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