Shield and Route Encoder Cables to Mitigate EMI

Tools and Materials: Shielded, twisted-pair cabling; wire strippers; soldering iron or JST-PH crimp tool; heat shrink tubing; grounding wire.

Safety Precautions: Ensure the VESC is fully disconnected from the battery power source before modifying wiring to prevent accidental shorts.

Step-by-Step Instructions:

1. Replace existing unshielded encoder wiring with high-quality, shielded, twisted-pair cabling to provide a Faraday cage against motor phase EMI.
2. Physically reroute the new encoder cable away from the motor phase wires. Ensure the path remains as short as possible to minimize the antenna effect.
3. Connect the cable shield drain wire to the VESC's ground (GND) pin on the sensor port. Note: Connect the shield at the VESC side only to prevent the creation of a ground loop.
4. Use heat shrink tubing to seal all exposed connections at the encoder breakout board to prevent shorts.
5. Reconnect the motor phase wires and power on the VESC.

Verification: Open VESC Tool, navigate to the Motor Detection wizard, and run the encoder detection test. The test should now complete successfully without oscillation or triggering the FAULT_CODE_ENCODER_SPI error.