Introduction

This assignment uses an Allegro MicroSystems A4988 microstepping driver to control a stepper motor.

Module

Pin Assignment

Port	A4988	mikroBUS		A4988	Port
PD4	Enable	AN	PWM	Step	PD0
PD3	Reset	RST	INT	Dir	PD1
PD2	Sleep	CS	TX	-	-
-	-	SCK	RX	-	-
-	-	MISO	SCL	-	-
-	-	MOSI	SDA	-	-
J4P10	VDD	+3.3V	+5V	-	-
J4P9	GND	GND	GND	GND	J4P9

Terminal	Supply	Motor	Line
2B	-	D	Blue
2A	-	B	Red
1A	-	A	Black
1B	-	C	Green
VIN	9 V	-	-
GND	GND	-	-

Movie

Documents

• MIKROE-1926 stepper 2 click
• Stepper 2 click manual
• Stepper 2 click schematic
• Stepper motor - product
• Stepper motor - datasheet
• A4988 - product
• A4988 - datasheet

Files

• Board: board.h (source)
• CLI: cli.h (source) cli.c protocol
• Console: console.h (source) library
• Driver: a4988.h (source) a4988.c

Solution

• Solution: project9.hex

Skills

Skill		Acquisition
1.1	Implementing hardware	x
2.1	Creating a software project	x
2.2	Using peripheral components	x
2.3	Implementing interrupts	-
2.4	Using a communication protocol	x