Library to run 4-wire half stepper in asynchronous mode
Revision 1:359b46cdaf19, committed 2021-06-05
- Comitter:
- krogedal
- Date:
- Sat Jun 05 23:06:24 2021 +0000
- Parent:
- 0:252d645cfc5d
- Commit message:
- Updated for documentation
Changed in this revision
Async_4pin_Stepper.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/Async_4pin_Stepper.h Thu Jun 03 21:38:34 2021 +0000 +++ b/Async_4pin_Stepper.h Sat Jun 05 23:06:24 2021 +0000 @@ -1,68 +1,122 @@ +/** + * @file Async_4pin_Stepper.h + * @author Simon Krogedal <simon.krogedal@student.manchester.ac.uk> + * @version 0.1 + */ + #ifndef ASYNC_4PIN_STEPPER_H #define ASYNC_4PIN_STEPPER_H -/* Asynchronous Stepper with 4-pin output +#include "mbed.h" + +/** Asynchronous Stepper with 4-pin half step output class. * - * Written by Simon Krogedal + + * * 31/05/2021 * Team 9 4th Year project * * for NUCLEO-F401RE * - * Version 0.1 + * */ - -#include "mbed.h" - class Async_4pin_Stepper { private: - Ticker ticker; - BusOut output; + Ticker ticker; /// Ticker object + BusOut output; /// Collection of output pins - int currentPos; - int targetPos; - int speed_; - double stepInterval; - double SPR; - bool running; + int currentPos; /// Current position of stepper + int targetPos; /// Target position of stepper + int speed_; /// Set speed for stepper movement + double stepInterval; /// Step interval for movement at desired speed + double SPR; /// Steps per revolution + bool running; /// Boolean flag indicating whether the motor is running - void step(int step); // Do a single step, called by step once funcs - void stepCB(); // Callback function for stepper + /** Do a single step, called by stepOnce functions + * @param step The desired step + */ + void step(int step); /// Do a single step, called by step once funcs + void stepCB(); /// Callback function for stepper, called intermittedly to do a step towards the current target protected: - void stepOnceCW(); // Single step CW - void stepOnceCCW(); // Single step CCW + void stepOnceCW(); /// Single step CW + void stepOnceCCW(); /// Single step CCW public: typedef enum { - CW, // Clockwise - CCW // Counter-clockwise + CW, /// Clockwise + CCW /// Counter-clockwise } Dir; - // Constructor takes 4 pins and a steps/rev in float presicion + /** Constructor takes 4 pins and a steps/rev in float presicion + * + * @param StepperPin1 Pin 1 on stepper motor + * @param StepperPin2 Pin 2 on stepper motor + * @param StepperPin3 Pin 3 on stepper motor + * @param StepperPin4 Pin 4 on stepper motor + * @param StepsPerRev Steps per revolution. Defaults to 4075.8, for 28BYJ-48 + */ Async_4pin_Stepper( PinName StepperPin1, PinName StepperPin2, PinName StepperPin3, PinName StepperPin4, float StepsPerRev = 4075.7728); - - void setZeroPos(); // Set current position as 0 - void setTarget(int target); // set target - void goToTarget(); // Move towards given target -// void run(float speed, Dir dir); // Run at a given speed in step/s - void setSpeed(int speed); // Set speed - int getSpeed(); // Returns speed - int getPos(); // Returns current position - int getTarget(); // Returns target position - int distanceToGo(); // Returns steps left to target - void relax(); // Close all gates, reducing current but losing holding torque - bool isRunning(); // Is the motor running? + /// Set current position as 0 + void setZeroPos(); + + /** Set target + * @param target Target step, can be positive or negative + */ + void setTarget(int target); + + /// Move towards given target + void goToTarget(); + + // Run at a given speed in step/s +// void run(float speed, Dir dir); + + /** Set speed + * @param speed Speed in steps/seconds + */ + void setSpeed(int speed); + + /** Get speed + * @returns Speed in steps/seconds + */ + int getSpeed(); + + /** Get position + * @returns Stepper position + */ + int getPos(); + + /** Get target position + * @returns Target step position + */ + int getTarget(); + + /** Get distance left to target + * @returns Number of steps away from target + */ + int distanceToGo(); + + /** Check if motor is running + * @returns + * 0 Motor is not running (ticker is not attached) + * 1 Motor is running (ticker is attached) + */ + bool isRunning(); + + /// Close all gates, reducing current but losing holding torque + void relax(); + + /// Stop the motor and detach ticker void stop(); };