I²C communication is possible only when the EN pin is set high. To enable the DRV2625 and allow external I²C control, follow the instructions below.

1. Enter Additional Hardware Modes.
2. Select Mode 0 (00000’b) using the increment mode button (+).
   • B1 – Select the on-board ERM
   • B2 – Select the on-board LRA
   • B3 – Trigger Select (1 = Internal Trigger, 2 = Ext. Edge, 3 = Ext. Level)
   • B4 – Trigger the waveform sequence using the MSP430.
3. Choose either the on-board ERM or LRA using buttons B1 or B2. Either button sets the EN pin high and turns on the Active LED.
4. Begin controlling the DRV2625 using the external I²C source.