How to Check CAN Network Using an Oscilloscope | Step-by-Step Guide
1. Prepare and Calibrate High-Precision Equipment
Tools Required:
Digital Oscilloscope: Use a high-bandwidth (100+ MHz) oscilloscope with at least 1 GS/s sampling rate to accurately capture the fast transitions on CAN networks.
Differential Probes: Essential for high-accuracy readings on CAN_H and CAN_L without ground interference. Select probes rated for the expected voltage range and bandwidth of your network.
Termination Checkers: Check for 120-ohm termination resistors at both ends of the CAN bus. [...]
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