Hi Phil,
Thank you for your feedback. Before we attempted external PWM input, we successfully spun the motor using the EVM attached to Launch Pad dev. board and GUI commanding a PWM signal on 6x PWM mode.
Can you clarify the steps for transitioning to external PWM input? Here are the steps we are aware of: connect the EVM to Launch Pad board, switch to 1x PWM mode on the GUI, populate the R36, R37, R38 pins with 0 ohm resistors (do we solder these resistors to the board ourselves?), connect our PWM supply from Raspberry Pi to the INHA pin, and connect a 2 V source to the Mode pin (as stated in the GUI).
Thanks,
Rasa