Stepper controller should be powered by VCC
|Assignee:||Kevin Woo||% Done:|
The VBB pins should be connected to VCC on the stepper controller. Also they should be have a decoupling capacitor on each VBB line in addition to a bulk cap on the VCC line. Estimating .1uF for the bypass and .22uF or 4.7uF or higher on the bulk.