April Junio / Motordriver

motor drive libary to use speed control, coasting and dynamic braking. NOTE, dynamic braking my result in large currents. this may or may not set the motor driver on fire/break it/other undesired effects. so read the data sheet folks.

Dependents:   Test

Fork of Motordriver by Christopher Hasler

Files at this revision

API Documentation at this revision

Revision 6:415f0e127063, committed 2018-07-13

Comitter:
apriljunio
Date:
Fri Jul 13 19:57:27 2018 +0000
Parent:
5:3110b9209d3c
Commit message:
Changed PWM period to be 20kHz;

Changed in this revision

motordriver.cpp Show annotated file Show diff for this revision Revisions of this file
motordriver.h Show annotated file Show diff for this revision Revisions of this file 
--- a/motordriver.cpp	Thu Nov 25 13:34:15 2010 +0000
+++ b/motordriver.cpp	Fri Jul 13 19:57:27 2018 +0000
@@ -32,9 +32,8 @@
 
 Motor::Motor(PinName pwm, PinName fwd, PinName rev, int brakeable):
         _pwm(pwm), _fwd(fwd), _rev(rev) {
-
     // Set initial condition of PWM
-    _pwm.period(0.001);
+    _pwm.period(0.00005); // PWM set to 20 kHz
     _pwm = 0;
 
     // Initial condition of output enables
@@ -115,7 +114,7 @@
     } else if ((_fwd == 0) && (_rev == 1)) {
         return -(_pwm);//reversing
     }  else if ((_fwd == 1) && (_rev == 0)) {
-        return _pwm;//fowards
+        return _pwm;//foRwards
     } else
         return -3;//error
 }

--- a/motordriver.h	Thu Nov 25 13:34:15 2010 +0000
+++ b/motordriver.h	Fri Jul 13 19:57:27 2018 +0000
@@ -79,13 +79,11 @@
         PwmOut _pwm;
         DigitalOut _fwd;
         DigitalOut _rev;
-        int Brakeable; // cna the motor driver break
+        int Brakeable; // can the motor driver break
         int sign; //prevents throwing the motor from full foward to full reverse and stuff melting.
  
 };
 
 
 
-
-
 #endif