Loading ...
Loading ...
Loading ...
I2C Serial Decode
After completing the setup of I2C signal and trigger, we will decode I2C signals.
Operation steps as follows.
1. Press Decode→ Decode. Select one of the options from the Decode1 and
Decode2.
2. Press Display and select On to enable onscreen display of the result of
decoding.
3. Press List to enter the LIST function menu.
4. Press Display and choose the same options as the first step.
5. Press Lines and set the number of lines by Universal Knob. The range of the
lines is 1 to 7.
6. Press Format to change the character encoding format of the decoding’s result.
7. Press Scroll and turn the Universal Knob to view all frames.
Interpreting I2C Decode
The frames of decoding result:
The address value is displayed at the beginning of a frame. The write address
is displayed in green, and read address in yellow.
W/R bit is represented by (W) and (R), following the address value.
The data value is displayed in white.
"~A" after a data or address bits indicates no acknowledgement. For example,
DB~A.
indicates there is not enough space on the display to show the complete
content of a frame, and some content is hidden.
Figure 38 I2C Decode Bus Display
The lists of decoding result:
Time (timestamp) — The horizontal displacement between current frame and
trigger position.
Address — The address of a frame.
R/W — The type of a frame (write or read).
Data — The value of data.
Loading ...
Loading ...
Loading ...