the fish that looks like a jet
Dependencies: ADXL345 ADXL345_I2C IMUfilter ITG3200 mbed Servo
Diff: PwmIn.h
- Revision:
- 8:0574a5db1fc4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PwmIn.h Fri Jan 31 04:33:44 2014 +0000 @@ -0,0 +1,55 @@ + +#ifndef MBED_PWMIN_H +#define MBED_PWMIN_H + +#include "mbed.h" + +/** PwmIn class to read PWM inputs + * + * Uses InterruptIn to measure the changes on the input + * and record the time they occur + * + * @note uses InterruptIn, so not available on p19/p20 + */ +class PwmIn { +public: + /** Create a PwmIn + * + * @param p The pwm input pin (must support InterruptIn) + */ + PwmIn(PinName p, float dutyMin, float dutyMax) ; + + /** Read the current period + * + * @returns the period in seconds + */ + float period(); + + /** Read the current pulsewidth + * + * @returns the pulsewidth in seconds + */ + float pulsewidth(); + + /** Read the current dutycycle + * + * @returns the dutycycle as a percentage, represented between 0.0-1.0 + */ + float dutycycle(); + + float dutycyclescaledup(); + +protected: + void rise(); + void fall(); + + InterruptIn _p; + Timer _t; + int _pulsewidth, _period; + int _tmp; + float _dutyMin, _dutyMax, _dutyDelta; + + bool _risen; +}; + +#endif \ No newline at end of file