Control an H-Bridge using a PwmOut (enable) and two DigitalOuts (direction select)
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Revision 3:096f80c692ac, committed 2015-02-26
- Comitter:
- mamaleoni
- Date:
- Thu Feb 26 13:40:29 2015 +0000
- Parent:
- 2:f265e441bcd9
- Commit message:
- no changes made
Changed in this revision
Motor.cpp | Show diff for this revision Revisions of this file |
diff -r f265e441bcd9 -r 096f80c692ac Motor.cpp --- a/Motor.cpp Tue Nov 23 16:16:43 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,46 +0,0 @@ -/* mbed simple H-bridge motor controller - * Copyright (c) 2007-2010, sford, http://mbed.org - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "Motor.h" - -#include "mbed.h" - -Motor::Motor(PinName pwm, PinName fwd, PinName rev): - _pwm(pwm), _fwd(fwd), _rev(rev) { - - // Set initial condition of PWM - _pwm.period(0.001); - _pwm = 0; - - // Initial condition of output enables - _fwd = 0; - _rev = 0; -} - -void Motor::speed(float speed) { - _fwd = (speed > 0.0); - _rev = (speed < 0.0); - _pwm = abs(speed); -} - - -