Stepper-motor-in-assembly

Controlling stepper motor using A4988 driver written from scratch in ARM assembly. It has a very basic code but enough to properly run it. Maybe I will add some additional features if I have free time.

Hardware used:

• STM32F446RE with Cortex-M4F.
• A4988 Stepper motor driver. It operates on 3 - 5.5V logic so no logic level converter is required. Remember to configure the driver properly.
• Stepper motor. I'm using 42BYGHM809 (400 steps, 3V, Current per coil: 1,7 A, 1.8 Ohm). Of course you can use different one.
• External power supply for stepper motor. Depends on motor requirements.