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SIGLENT
96 SDS2000X User Manual
CAN Trigger and Serial Decode
Please take the order of ―Setup for CAN Signals‖, ―CAN Triggering‖ and ―CAN Decode‖
to trigger and decode the signals.
Setup for CAN Signals
Setup consists of connecting the oscilloscope to a CAN signal, using the SINGAL menu to
specify the signal source, threshold voltage level, baud rate, and sample point.
To set up the oscilloscope to capture CAN signals.
1. Press Decode on the front panel to enter the DECODE function menu.
2. Press Serial and select the desired slot (Serial 1 or Serial 2).
3. Press Decode softkey and select CAN with the Universal Knob, and then push down
the Universal Knob to confirm.
4. Press the Signal softkey to enter the CAN SIGNAL menu.
Figure 54 CAN SIGNAL Menu
5. Press CAN-H or CAN-L; then, select the channel for the CAN signal.
6. Press the Threshold softkey; then, turn the Universal Knob to select the CAN signal
threshold voltage level. The threshold voltage level is used in decoding, and it will
become the trigger level when the trigger type is set to the selected serial decode slot.
7. Press the Back key to return to the DECODE menu.
8. Press the Configure softkey to enter the BUS CONFIG menu.
9. Press the Baud softkey; then, turn the Universal Knob to select the baud rate that
matches your CAN bus signal. The CAN baud rate can be set to predefined baud
rates from 5 kb/s up to 1 Mb/s or a custom baud rate from 1b/s to 1 Mb/s. If the desired
baud rate is not listed, select Custom on the Baud softkey, and then press the
Custom softkey and turn the Universal Knob to set the desired baud rate.
10. Press the Decode Source softkey to set the decode source that matches the single•
CAN_H — The actual CAN_H differential bus.
CAN_L — The actual CAN_L differential bus signal.
CAN_H-CAN_L — The CAN differential bus signals connected to an analog
source channel using a differential probe. Connect the probe's positive lead to the
dominant- high CAN signal (CAN_H) and connect the negative lead to the
dominant- low CAN signal (CAN_L).
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