Unsure what might be the problem- I’ve done some searching online, but keep finding myself with a zero reading for the VREF. Attaching an image below (apologies, its a bit sloppy).
I have the motor controller connected to a 12V, 10A power supply, and confirmed with the multimeter that the board is receiving 12V. DMODE2 is connected on HIGH, at 5V (also confirmed). DIR and STEP are connected to GPIO pins 20 and 21 (no program is running). The motor controls are soldered into place, but unplugged from the motor.
Hoping for some troubleshooting advice. I had some responsiveness when measuring Voltage from the unfused, 10A max port of the multimeter, but this measurement was at 1.7 mV and fluctuated quite wildly. Outside of this, readings have been a pretty consistent zero. I have tried measuring from the screw location to ground, in most instances.