DigitalIn,Timer を使用した ボール検知用ライブラリ
Dependents: CatPot_SensorRight_F CatPot_SensorRight_T
IRM2121.cpp
- Committer:
- ryuna
- Date:
- 2015-02-26
- Revision:
- 0:bb38fe5771fb
File content as of revision 0:bb38fe5771fb:
/* mbed Ping Library respected Library !! * * make interruptin_mod by bousiya03 * */ #include "IRM2121.h" #include "mbed.h" IRM2121::IRM2121(PinName IRM_PIN) : _pin(IRM_PIN), _timer() { } unsigned int IRM2121::Read(void) // 0 means not valid. { _timer.reset(); _timer.start(); while(_pin){ if(_timer.read_us() > NAKATA){ _timer.stop(); return NOT_F; } } _timer.reset(); while(!_pin){ if(_timer.read_us() > NAKATA){ _timer.stop(); return NOT_F; } } _Time = _timer.read_us(); while(_pin){ if((_timer.read_us() -_Time) > NAKATA){ _timer.stop(); return NOT_F; } } _Time = _timer.read_us() - _Time; _timer.stop(); return _Time; }