follow wall 1

Dependencies:   mbed

Committer:
khaledelmadawi
Date:
Tue Apr 08 13:23:06 2014 +0000
Revision:
0:b703833f6795
follow wall 1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
khaledelmadawi 0:b703833f6795 1 /* mbed simple H-bridge motor controller
khaledelmadawi 0:b703833f6795 2 * Copyright (c) 2007-2010, sford
khaledelmadawi 0:b703833f6795 3 *
khaledelmadawi 0:b703833f6795 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
khaledelmadawi 0:b703833f6795 5 * of this software and associated documentation files (the "Software"), to deal
khaledelmadawi 0:b703833f6795 6 * in the Software without restriction, including without limitation the rights
khaledelmadawi 0:b703833f6795 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
khaledelmadawi 0:b703833f6795 8 * copies of the Software, and to permit persons to whom the Software is
khaledelmadawi 0:b703833f6795 9 * furnished to do so, subject to the following conditions:
khaledelmadawi 0:b703833f6795 10 *
khaledelmadawi 0:b703833f6795 11 * The above copyright notice and this permission notice shall be included in
khaledelmadawi 0:b703833f6795 12 * all copies or substantial portions of the Software.
khaledelmadawi 0:b703833f6795 13 *
khaledelmadawi 0:b703833f6795 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
khaledelmadawi 0:b703833f6795 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
khaledelmadawi 0:b703833f6795 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
khaledelmadawi 0:b703833f6795 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
khaledelmadawi 0:b703833f6795 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
khaledelmadawi 0:b703833f6795 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
khaledelmadawi 0:b703833f6795 20 * THE SOFTWARE.
khaledelmadawi 0:b703833f6795 21 */
khaledelmadawi 0:b703833f6795 22
khaledelmadawi 0:b703833f6795 23 #include "Motor.h"
khaledelmadawi 0:b703833f6795 24
khaledelmadawi 0:b703833f6795 25 Motor::Motor(PinName pwm, PinName fwd, PinName rev):
khaledelmadawi 0:b703833f6795 26 _pwm(pwm), _fwd(fwd), _rev(rev) {
khaledelmadawi 0:b703833f6795 27
khaledelmadawi 0:b703833f6795 28 // Set initial condition of PWM
khaledelmadawi 0:b703833f6795 29 _pwm.period(0.001);
khaledelmadawi 0:b703833f6795 30 _pwm = 0;
khaledelmadawi 0:b703833f6795 31
khaledelmadawi 0:b703833f6795 32 // Initial condition of output enables
khaledelmadawi 0:b703833f6795 33 _fwd = 0;
khaledelmadawi 0:b703833f6795 34 _rev = 0;
khaledelmadawi 0:b703833f6795 35 }
khaledelmadawi 0:b703833f6795 36
khaledelmadawi 0:b703833f6795 37 void Motor::speed(float speed) {
khaledelmadawi 0:b703833f6795 38 _fwd = (speed > 0.0);
khaledelmadawi 0:b703833f6795 39 _rev = (speed < 0.0);
khaledelmadawi 0:b703833f6795 40 _pwm = abs(speed);
khaledelmadawi 0:b703833f6795 41 }
khaledelmadawi 0:b703833f6795 42
khaledelmadawi 0:b703833f6795 43 void Motor::period(float period){
khaledelmadawi 0:b703833f6795 44
khaledelmadawi 0:b703833f6795 45 _pwm.period(period);
khaledelmadawi 0:b703833f6795 46
khaledelmadawi 0:b703833f6795 47 }
khaledelmadawi 0:b703833f6795 48
khaledelmadawi 0:b703833f6795 49 void Motor::brake(int highLow){
khaledelmadawi 0:b703833f6795 50
khaledelmadawi 0:b703833f6795 51 if(highLow == BRAKE_HIGH){
khaledelmadawi 0:b703833f6795 52 _fwd = 1;
khaledelmadawi 0:b703833f6795 53 _rev = 1;
khaledelmadawi 0:b703833f6795 54 }
khaledelmadawi 0:b703833f6795 55 else if(highLow == BRAKE_LOW){
khaledelmadawi 0:b703833f6795 56 _fwd = 0;
khaledelmadawi 0:b703833f6795 57 _rev = 0;
khaledelmadawi 0:b703833f6795 58 }
khaledelmadawi 0:b703833f6795 59
khaledelmadawi 0:b703833f6795 60 }