Cooper Liu / Mbed 2 deprecated Eurobot2013_IR

Eurobot 2013 IR testbench

Dependencies:   mbed-rtos mbed

PwmIn/PwmIn.h@0:5ebe36076172, 2012-11-14 (annotated)

Committer:
xiaxia686
Date:
Wed Nov 14 16:53:28 2012 +0000
Revision:
0:5ebe36076172
Child:
1:818904abef3d
Eurobot2013 IR Testbench;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xiaxia686 0:5ebe36076172 1 /* mbed PwmIn Library
xiaxia686 0:5ebe36076172 2 * Copyright (c) 2008-2010, sford
xiaxia686 0:5ebe36076172 3 *
xiaxia686 0:5ebe36076172 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
xiaxia686 0:5ebe36076172 5 * of this software and associated documentation files (the "Software"), to deal
xiaxia686 0:5ebe36076172 6 * in the Software without restriction, including without limitation the rights
xiaxia686 0:5ebe36076172 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
xiaxia686 0:5ebe36076172 8 * copies of the Software, and to permit persons to whom the Software is
xiaxia686 0:5ebe36076172 9 * furnished to do so, subject to the following conditions:
xiaxia686 0:5ebe36076172 10 *
xiaxia686 0:5ebe36076172 11 * The above copyright notice and this permission notice shall be included in
xiaxia686 0:5ebe36076172 12 * all copies or substantial portions of the Software.
xiaxia686 0:5ebe36076172 13 *
xiaxia686 0:5ebe36076172 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
xiaxia686 0:5ebe36076172 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
xiaxia686 0:5ebe36076172 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
xiaxia686 0:5ebe36076172 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
xiaxia686 0:5ebe36076172 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
xiaxia686 0:5ebe36076172 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
xiaxia686 0:5ebe36076172 20 * THE SOFTWARE.
xiaxia686 0:5ebe36076172 21 */
xiaxia686 0:5ebe36076172 22
xiaxia686 0:5ebe36076172 23 #ifndef MBED_PWMIN_H
xiaxia686 0:5ebe36076172 24 #define MBED_PWMIN_H
xiaxia686 0:5ebe36076172 25
xiaxia686 0:5ebe36076172 26 #include "mbed.h"
xiaxia686 0:5ebe36076172 27
xiaxia686 0:5ebe36076172 28 /** PwmIn class to read PWM inputs
xiaxia686 0:5ebe36076172 29 *
xiaxia686 0:5ebe36076172 30 * Uses InterruptIn to measure the changes on the input
xiaxia686 0:5ebe36076172 31 * and record the time they occur
xiaxia686 0:5ebe36076172 32 *
xiaxia686 0:5ebe36076172 33 * @note uses InterruptIn, so not available on p19/p20
xiaxia686 0:5ebe36076172 34 */
xiaxia686 0:5ebe36076172 35 class PwmIn {
xiaxia686 0:5ebe36076172 36 public:
xiaxia686 0:5ebe36076172 37 /** Create a PwmIn
xiaxia686 0:5ebe36076172 38 *
xiaxia686 0:5ebe36076172 39 * @param p The pwm input pin (must support InterruptIn)
xiaxia686 0:5ebe36076172 40 */
xiaxia686 0:5ebe36076172 41 PwmIn(PinName p);
xiaxia686 0:5ebe36076172 42
xiaxia686 0:5ebe36076172 43 /** Read the current period
xiaxia686 0:5ebe36076172 44 *
xiaxia686 0:5ebe36076172 45 * @returns the period in seconds
xiaxia686 0:5ebe36076172 46 */
xiaxia686 0:5ebe36076172 47 float period();
xiaxia686 0:5ebe36076172 48
xiaxia686 0:5ebe36076172 49 /** Read the current pulsewidth
xiaxia686 0:5ebe36076172 50 *
xiaxia686 0:5ebe36076172 51 * @returns the pulsewidth in seconds
xiaxia686 0:5ebe36076172 52 */
xiaxia686 0:5ebe36076172 53 float pulsewidth();
xiaxia686 0:5ebe36076172 54
xiaxia686 0:5ebe36076172 55 /** Read the current dutycycle
xiaxia686 0:5ebe36076172 56 *
xiaxia686 0:5ebe36076172 57 * @returns the dutycycle as a percentage, represented between 0.0-1.0
xiaxia686 0:5ebe36076172 58 */
xiaxia686 0:5ebe36076172 59 float dutycycle();
xiaxia686 0:5ebe36076172 60
xiaxia686 0:5ebe36076172 61 protected:
xiaxia686 0:5ebe36076172 62 void rise();
xiaxia686 0:5ebe36076172 63 void fall();
xiaxia686 0:5ebe36076172 64
xiaxia686 0:5ebe36076172 65 InterruptIn _p;
xiaxia686 0:5ebe36076172 66 Timer _t;
xiaxia686 0:5ebe36076172 67 float _pulsewidth, _period;
xiaxia686 0:5ebe36076172 68 };
xiaxia686 0:5ebe36076172 69
xiaxia686 0:5ebe36076172 70 #endif