IRM2121.h

00001 
00002     
00003  #ifndef MBED_IRM_H
00004  #define MBED_IRM_H
00005 
00006 #include "mbed.h"
00007 
00008 #define NAKATA 833 //周期833us
00009 #define NOT_F 0
00010 
00011 /** IRM2121  class, based on an DigitalIn pin, and a timer
00012  *  use RoboCup Junior Soccer to find PULSE BALL.
00013  
00014  
00015  * Example:
00016  * @code
00017  * // Set Digital and read sensor.
00018  * #include "mbed.h"
00019  * #include "IRM2121.h"
00020  * IRM2121 IR(p21);
00021  * 
00022  * int main() {
00023  *     int length;
00024  
00025  *     while(1) {
00026  *  
00027  *        IR.Set();    
00028  *        wait_ms(20); //check _Busy 1 &_Valid 0 ....config just wait time.
00029  *        length = IR.Read();
00030  *     }
00031  * }
00032  * @endcode
00033  */
00034 class IRM2121 {
00035   public:
00036     /** Create a IRM2121 object connected to the specified InterruptIn pin
00037     *
00038     * @param IRM_PIN InterruptIn pin to connect to 
00039     */
00040     IRM2121(PinName IRM_PIN);
00041     
00042     unsigned int Read (void);    
00043      /** Set a IRM2121 Interrupt Pin 
00044       *
00045       * @param none
00046       */
00047         
00048     /** Read the result 
00049       *
00050       * @param none
00051       */
00052     
00053   private:
00054     
00055     DigitalIn       _pin;
00056     Timer           _timer;
00057 
00058     unsigned int _Time;
00059       
00060   };
00061   
00062   #endif