Tedd OKANO / StepperMotorUni

Unipolar stepper motor operation library

Dependents:   LAB04_Oppgave1 test_stepper Stepper_Motor_Demo StepperMotorUni_Hello ... more

Unipolar stepper motor library

This library generates pulses on 4 digital output pins of the mbed. The pulses are generated by mbed's ticker function.

The mbed pins cannot drive the stepper motor directly. So it requires driver stage for the motor. The circuit may be like following diagram.
The driver stage should be chosen by requirement for the stepper motor.

/media/uploads/okano/unipolar-steppermotor-sample.png

The mbed generates pulses on 4 output pins for external driver stage.
This library can generate 3 types of pulses.

1 phase drive (wave drive) /media/uploads/okano/1phase_drive.gif

2 phase drive /media/uploads/okano/2phase_drive.gif

1-2 phase (half step) drive /media/uploads/okano/halfstep_drive.gif

Components pages

Components pages are available for bipolar and unipolar motor libraries

A bipolar stepper motor driving pulse generator

A unipolar stepper motor driving pulse generator

Diff: StepperMotorUni.h

Revision:
4:6909efe4c8ac
Parent:
3:0eec6148e739
Child:
5:93f9ce526f38
--- a/StepperMotorUni.h	Tue Apr 21 14:37:52 2015 +0000
+++ b/StepperMotorUni.h	Wed Apr 22 03:24:21 2015 +0000
@@ -2,8 +2,8 @@
  *
  *  @class   StepperMotorUni
  *  @author  Tedd OKANO
- *  @version 1.1
- *  @date    21-Apr-2015
+ *  @version 1.1.1
+ *  @date    22-Apr-2015
  *
  *  Copyright: 2010, 2014, 2015 Tedd OKANO
  *  Released under the Apache 2 license License
@@ -15,28 +15,29 @@
  *  @code
  *  #include "mbed.h"
  *  #include "StepperMotorUni.h"
- *  
+ *
  *  StepperMotorUni motor( p26, p25, p24, p23 );
- *  
+ *
  *  int main()
  *  {
  *      motor.set_pps( 50 );
- *  
+ *
  *      while ( 1 ) {
  *          motor.move_steps( 24 );
  *          wait( 1 );
- *  
+ *
  *          motor.move_steps( -24 );
  *          wait( 1 );
  *      }
  *  }
  *  @endcode
- * 
- *  version 0.51(27-Nov-2010)   //  initial version (un-published)
- *  version 0.6 (15-Jan-2014)   //  compatible to LPC1768, LPC11U24 and LPC1114 targets
- *  version 1.0 (19-Jun-2014)   //  version 1.0 release
+ *
+ *  version 0.51  (27-Nov-2010) //  initial version (un-published)
+ *  version 0.6   (15-Jan-2014) //  compatible to LPC1768, LPC11U24 and LPC1114 targets
+ *  version 1.0   (19-Jun-2014) //  version 1.0 release
  *  version 1.0.1 (14-Apr-2015) //  API document correction
- *  version 1.1 (21-Apr-2015)   //  ramp control function enabled
+ *  version 1.1   (21-Apr-2015) //  ramp control function enabled
+ *  version 1.1.1 (22-Apr-2015) //  fixed: find_home_position compatibility with ramp control feature
  */
 
 #ifndef    MBED_STEPPERMOTOR_UNIPOLAR