DRV2625 ERM, LRA Haptic Driver Evaluation Kit
1 Getting Started
The DRV2625 can be used as a demonstration or evaluation tool. When the DRV2625EVM-CT evaluation module is powered on for the first time, a demo application automatically starts. To power the board, connect the DRV2625EVM-CT to an available USB port on your computer using the included micro-USB cable. The demo begins with a board power-up sequence and then enters the demo effects mode. The four larger buttons on the wheel (1–4) can be used to sample haptic effects using both the ERM and LRA motor in the top right corner.
Figure 1-1 Board Diagram1.1 Evaluation Module Operating Parameters
The following table lists the operating conditions for the DRV2625 on the evaluation module.
| Parameter | Specification |
|---|---|
| Supply voltage range | 2.7 V to 5.5 V |
| Power-supply current rating | 400 mA |
1.2 Quick Start Board Setup
The DRV2625EVM-CT firmware contains haptic waveforms which showcase the features and benefits of the DRV2625. Follow the instructions below to begin the demo:
- Out of the box, the jumpers are set to begin demo mode using USB power. The default jumper settings are found in the table below. Table 1-2 Jumper Descriptions
Jumper Default Position Description J3 Short pin 2-3 Powers using USB J2 Short pin 2-3 USB power to DVDD J5 Shorted Level translator J17 Open Trigger/NRST for DRV2625 J7 Shorted Bypass the I-Sense J8 Shorted Motor+ terminal J9 Shorted Motor- terminal J4 Open SDA/SCL connections to debug/Monitor advanced operations - Connect the included micro-USB cable to the USB connector on the DRV2625EVM-CT board.
- Connect the other end of the USB cable to an available USB port on a computer, USB charger, or USB battery pack.
- If the board is powered correctly, the LEDs will blink and the LRA and the ERM actuator will spin and stop at the start up.