CAN Decoding (Option)
Press Decode1 → Decode and select “CAN” to open the CAN decoding function menu.
1. Source
Press Source and select any channel (CH1 to CH4) as the source channel.
2. Signal Type
Press Signal Type to select the desired signal type.
- CAN_H: the actual CAN_H bus signal.
- CAN_L: the actual CAN_L bus signal.
- Differential: the CAN differential bus signals connected to an analog channel using a differential probe. The positive lead of the probe connects CAN_H and the negative lead connects CAN_L.
3. Baud
Press Baud to select a baud rate (100 kb/s, 125 kb/s, 250 kb/s, 400 kb/s, 500 kb/s, 800 kb/s, 1 Mb/s or User) that matches the CAN bus signal. When “User” is selected, press Setup and use ![]()
to enter the desired rate, the range is from 10 kb/s to 1 Mb/s.
4. Sample Point
The Sample point is the point within the bit’s time. The oscilloscope samples the bit level at this point. “Sample point” is represented by the percentage of “the time from the start of the bit’s time to the sample point time” in the “bit’s time”.
Press Sample Point and use ![]()
to adjust this parameter with a step of 1%. The range is from 5% to 95%.
5. Threshold
Refer to the introduction in “Parallel Decoding”.
6. Display-related Setting
Press Format to set the bus display format to Hex, Decimal, Binary or ASCII.
Press Offset and use ![]()
to adjust the vertical display position of the bus.
Press BusStatus to enable or disable bus display.
7. Decoding Table
The decoding table displays the decoded data, the corresponding time, frame ID, DLC, CRC and ACK information in table format.
Press Event Table → Event Table to select “ON” (note that this operation is only available when BusStatus is set to “ON”) to enter the decoding table interface as shown in the figure below. If an USB storage device is currently connected to the instrument, press Export to export the data table to the external USB storage device in CSV format.