USBclock 48Mhz, enable serial4 and serial5.
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InterruptIn.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_INTERRUPTIN_H 00017 #define MBED_INTERRUPTIN_H 00018 00019 #include "platform.h" 00020 00021 #if DEVICE_INTERRUPTIN 00022 00023 #include "gpio_api.h" 00024 #include "gpio_irq_api.h" 00025 #include "FunctionPointer.h" 00026 00027 namespace mbed { 00028 00029 /** A digital interrupt input, used to call a function on a rising or falling edge 00030 * 00031 * Example: 00032 * @code 00033 * // Flash an LED while waiting for events 00034 * 00035 * #include "mbed.h" 00036 * 00037 * InterruptIn event(p16); 00038 * DigitalOut led(LED1); 00039 * 00040 * void trigger() { 00041 * printf("triggered!\n"); 00042 * } 00043 * 00044 * int main() { 00045 * event.rise(&trigger); 00046 * while(1) { 00047 * led = !led; 00048 * wait(0.25); 00049 * } 00050 * } 00051 * @endcode 00052 */ 00053 class InterruptIn { 00054 00055 public: 00056 00057 /** Create an InterruptIn connected to the specified pin 00058 * 00059 * @param pin InterruptIn pin to connect to 00060 * @param name (optional) A string to identify the object 00061 */ 00062 InterruptIn(PinName pin); 00063 virtual ~InterruptIn(); 00064 00065 int read(); 00066 #ifdef MBED_OPERATORS 00067 operator int(); 00068 00069 #endif 00070 00071 /** Attach a function to call when a rising edge occurs on the input 00072 * 00073 * @param fptr A pointer to a void function, or 0 to set as none 00074 */ 00075 void rise(void (*fptr)(void)); 00076 00077 /** Attach a member function to call when a rising edge occurs on the input 00078 * 00079 * @param tptr pointer to the object to call the member function on 00080 * @param mptr pointer to the member function to be called 00081 */ 00082 template<typename T> 00083 void rise(T* tptr, void (T::*mptr)(void)) { 00084 _rise.attach(tptr, mptr); 00085 gpio_irq_set(&gpio_irq, IRQ_RISE, 1); 00086 } 00087 00088 /** Attach a function to call when a falling edge occurs on the input 00089 * 00090 * @param fptr A pointer to a void function, or 0 to set as none 00091 */ 00092 void fall(void (*fptr)(void)); 00093 00094 /** Attach a member function to call when a falling edge occurs on the input 00095 * 00096 * @param tptr pointer to the object to call the member function on 00097 * @param mptr pointer to the member function to be called 00098 */ 00099 template<typename T> 00100 void fall(T* tptr, void (T::*mptr)(void)) { 00101 _fall.attach(tptr, mptr); 00102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1); 00103 } 00104 00105 /** Set the input pin mode 00106 * 00107 * @param mode PullUp, PullDown, PullNone 00108 */ 00109 void mode(PinMode pull); 00110 00111 /** Enable IRQ. This method depends on hw implementation, might enable one 00112 * port interrupts. For further information, check gpio_irq_enable(). 00113 */ 00114 void enable_irq(); 00115 00116 /** Disable IRQ. This method depends on hw implementation, might disable one 00117 * port interrupts. For further information, check gpio_irq_disable(). 00118 */ 00119 void disable_irq(); 00120 00121 static void _irq_handler(uint32_t id, gpio_irq_event event); 00122 00123 protected: 00124 gpio_t gpio; 00125 gpio_irq_t gpio_irq; 00126 00127 FunctionPointer _rise; 00128 FunctionPointer _fall; 00129 }; 00130 00131 } // namespace mbed 00132 00133 #endif 00134 00135 #endif
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