mbed libraries for KL25Z
InterruptIn.h
- Committer:
- emilmont
- Date:
- 2012-10-23
- Revision:
- 7:73c5efe92a6c
- Parent:
- 0:8024c367e29f
- Child:
- 8:c14af7958ef5
File content as of revision 7:73c5efe92a6c:
/* mbed Microcontroller Library - InterruptIn * Copyright (c) 2006-2011 ARM Limited. All rights reserved. */ #ifndef MBED_INTERRUPTIN_H #define MBED_INTERRUPTIN_H #include "device.h" #if DEVICE_INTERRUPTIN #include "gpio_api.h" #include "gpio_irq_api.h" #include "platform.h" #include "Base.h" #include "FunctionPointer.h" namespace mbed { /* Class: InterruptIn * A digital interrupt input, used to call a function on a rising or falling edge * * Example: * > // Flash an LED while waiting for events * > * > #include "mbed.h" * > * > InterruptIn event(p16); * > DigitalOut led(LED1); * > * > void trigger() { * > printf("triggered!\n"); * > } * > * > int main() { * > event.rise(&trigger); * > while(1) { * > led = !led; * > wait(0.25); * > } * > } */ class InterruptIn : public Base { public: /* Constructor: InterruptIn * Create an InterruptIn connected to the specified pin * * Variables: * pin - InterruptIn pin to connect to * name - (optional) A string to identify the object */ InterruptIn(PinName pin, const char *name = NULL); virtual ~InterruptIn(); int read(); #ifdef MBED_OPERATORS operator int(); #endif /* Function: rise * Attach a function to call when a rising edge occurs on the input * * Variables: * fptr - A pointer to a void function, or 0 to set as none */ void rise(void (*fptr)(void)); /* Function: rise * Attach a member function to call when a rising edge occurs on the input * * Variables: * tptr - pointer to the object to call the member function on * mptr - pointer to the member function to be called */ template<typename T> void rise(T* tptr, void (T::*mptr)(void)) { _rise.attach(tptr, mptr); gpio_irq_set(&gpio_irq, IRQ_RISE, 1); } /* Function: fall * Attach a function to call when a falling edge occurs on the input * * Variables: * fptr - A pointer to a void function, or 0 to set as none */ void fall(void (*fptr)(void)); /* Function: fall * Attach a member function to call when a falling edge occurs on the input * * Variables: * tptr - pointer to the object to call the member function on * mptr - pointer to the member function to be called */ template<typename T> void fall(T* tptr, void (T::*mptr)(void)) { _fall.attach(tptr, mptr); gpio_irq_set(&gpio_irq, IRQ_FALL, 1); } /* Function: mode * Set the input pin mode * * Variables: * mode - PullUp, PullDown, PullNone */ void mode(PinMode pull); static void _irq_handler(uint32_t id, gpio_irq_event event); protected: gpio_object gpio; gpio_irq_object gpio_irq; FunctionPointer _rise; FunctionPointer _fall; }; } // namespace mbed #endif #endif