Can I connect MS1, MS2, M3 to GND to use the microstepping function?
closed as off-topic by ThreePhaseEel, uint128_t, Voltage Spike, nidhin, DoxyLover Feb 5 '17 at 11:30
- This question does not appear to be about electronics design within the scope defined in the help center.
No, connecting MS1, MS2, MS3 low will NOT enable micro stepping.
If you look at the datasheet for the A4988 you will find all the information you need.
Table 2 shows how the select lines should be set for whatever level if microstepping you require: