- Tue Oct 26, 2010 7:21 am
#112150
Hi everyone, I've searched around here (and elsewhere) and still can't figure out what's going on.
I have an Arduino driving the control signals to the pololu motor driver board. The signals are correct according to both Pololu's website and the VNH3SP30 datasheet. I'm driving the direction lines and PWM. I don't need current sensing, and the diagnostic pins seem to be taken care of with on-board pull-up resistors.
When connected and powered (motor power on, chip power on, control lines both pulled to ground, PWM off), the Pololu board seems fine, but when I change the PWM signal and the direction lines, the small ground trace (shown below) fries. Any ideas would be great. I am stumped with this one. Thanks!
I have an Arduino driving the control signals to the pololu motor driver board. The signals are correct according to both Pololu's website and the VNH3SP30 datasheet. I'm driving the direction lines and PWM. I don't need current sensing, and the diagnostic pins seem to be taken care of with on-board pull-up resistors.
When connected and powered (motor power on, chip power on, control lines both pulled to ground, PWM off), the Pololu board seems fine, but when I change the PWM signal and the direction lines, the small ground trace (shown below) fries. Any ideas would be great. I am stumped with this one. Thanks!
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