Forum Post: RE: Trouble with the DRV2603EVM-CT

Stuart,

Thank you for your feedback, it is much appreciated. A couple of comments to help you find the sections in the User's Guide

1. I have seen the same issue while programming the EVM.  Typically it is a ground related issue. 
2. If you want to connect an external actuator, please see section "3.3 Using an External Actuator".  The green OUT terminal block is always connected to the DRV2603.  Also see the schematic at the end of the User's Guide.
3. The best place to start writing your own waveforms is to see the Haptics_SendWaveform() function in the Haptics.c file.  This goes through the procedure of turning on the device and sending the PWM.

Please do not hesitate to ask more questions.  I would be happy to help.

Thanks,
Brian