Erik - / LPC1114_WakeInterruptIn

Class similar to InterruptIn which allows the LPC1114 to wake from deepsleep. (For other targets you can use InterruptIn).

Dependents:   WakeUp WakeUp WakeUp WakeUp ... more

WakeInterruptIn.h@0:d726461bd0af, 2014-07-26 (annotated)

Committer:
Sissors
Date:
Sat Jul 26 15:02:43 2014 +0000
Revision:
0:d726461bd0af
Child:
1:128f3fe79240
v1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sissors 0:d726461bd0af 1 /*
Sissors 0:d726461bd0af 2 Most mbed targets can be woken up from deepsleep by regular InterruptIn.
Sissors 0:d726461bd0af 3 On the LPC1114 this has to be done by different interrupts. This
Sissors 0:d726461bd0af 4 simple library helps with that
Sissors 0:d726461bd0af 5 */
Sissors 0:d726461bd0af 6
Sissors 0:d726461bd0af 7 #include "mbed.h"
Sissors 0:d726461bd0af 8 #define NUM_CHANNEL 13
Sissors 0:d726461bd0af 9
Sissors 0:d726461bd0af 10 /** Class to wake LPC1114 from deepsleep
Sissors 0:d726461bd0af 11 *
Sissors 0:d726461bd0af 12 * Use like regular InterruptIn, it works not only
Sissors 0:d726461bd0af 13 * to wake up from sleep but also just like InterruptIn.
Sissors 0:d726461bd0af 14 * Only you can NOT attach both rising and falling edge interrupts.
Sissors 0:d726461bd0af 15 */
Sissors 0:d726461bd0af 16 class WakeInterruptIn : DigitalIn {
Sissors 0:d726461bd0af 17 public:
Sissors 0:d726461bd0af 18
Sissors 0:d726461bd0af 19 /** Constructor
Sissors 0:d726461bd0af 20 *
Sissors 0:d726461bd0af 21 * Pins which are allowed are all pins from Port 0 and P1_0
Sissors 0:d726461bd0af 22 *
Sissors 0:d726461bd0af 23 * @param pin Pin to use as WakeInterruptIn pin
Sissors 0:d726461bd0af 24 */
Sissors 0:d726461bd0af 25 WakeInterruptIn(PinName pin);
Sissors 0:d726461bd0af 26
Sissors 0:d726461bd0af 27 ~WakeInterruptIn() {
Sissors 0:d726461bd0af 28 disable();
Sissors 0:d726461bd0af 29 objects[channel] = NULL;
Sissors 0:d726461bd0af 30 }
Sissors 0:d726461bd0af 31
Sissors 0:d726461bd0af 32 /* Attach rising edge interrupt
Sissors 0:d726461bd0af 33 *
Sissors 0:d726461bd0af 34 * Attaching a member function can be done the regular way too
Sissors 0:d726461bd0af 35 *
Sissors 0:d726461bd0af 36 * @argument fptr Pointer to function to call, NULL to disable interrupt
Sissors 0:d726461bd0af 37 */
Sissors 0:d726461bd0af 38 void rise(void (*fptr)(void)) {
Sissors 0:d726461bd0af 39 fpointer.attach(fptr);
Sissors 0:d726461bd0af 40 LPC_SYSCON->STARTAPRP0 |= (1 << channel);
Sissors 0:d726461bd0af 41 if (fptr == NULL)
Sissors 0:d726461bd0af 42 disable();
Sissors 0:d726461bd0af 43 else
Sissors 0:d726461bd0af 44 enable();
Sissors 0:d726461bd0af 45 }
Sissors 0:d726461bd0af 46 template<typename T>
Sissors 0:d726461bd0af 47 void rise(T* tptr, void (T::*mptr)(void)) {
Sissors 0:d726461bd0af 48 fpointer.attach(tptr, mptr);
Sissors 0:d726461bd0af 49 LPC_SYSCON->STARTAPRP0 |= (1 << channel);
Sissors 0:d726461bd0af 50 if (fptr == NULL)
Sissors 0:d726461bd0af 51 disable();
Sissors 0:d726461bd0af 52 else
Sissors 0:d726461bd0af 53 enable();
Sissors 0:d726461bd0af 54 }
Sissors 0:d726461bd0af 55
Sissors 0:d726461bd0af 56 /* Attach falling edge interrupt
Sissors 0:d726461bd0af 57 *
Sissors 0:d726461bd0af 58 * Attaching a member function can be done the regular way too
Sissors 0:d726461bd0af 59 *
Sissors 0:d726461bd0af 60 * @argument fptr Pointer to function to call, NULL to disable interrupt
Sissors 0:d726461bd0af 61 */
Sissors 0:d726461bd0af 62 void fall(void (*fptr)(void)) {
Sissors 0:d726461bd0af 63 fpointer.attach(fptr);
Sissors 0:d726461bd0af 64 LPC_SYSCON->STARTAPRP0 &= ~(1 << channel);
Sissors 0:d726461bd0af 65 if (fptr == NULL)
Sissors 0:d726461bd0af 66 disable();
Sissors 0:d726461bd0af 67 else
Sissors 0:d726461bd0af 68 enable();
Sissors 0:d726461bd0af 69 }
Sissors 0:d726461bd0af 70 template<typename T>
Sissors 0:d726461bd0af 71 void fall(T* tptr, void (T::*mptr)(void)) {
Sissors 0:d726461bd0af 72 fpointer.attach(tptr, mptr);
Sissors 0:d726461bd0af 73 LPC_SYSCON->STARTAPRP0 &= ~(1 << channel);
Sissors 0:d726461bd0af 74 if (fptr == NULL)
Sissors 0:d726461bd0af 75 disable();
Sissors 0:d726461bd0af 76 else
Sissors 0:d726461bd0af 77 enable();
Sissors 0:d726461bd0af 78 }
Sissors 0:d726461bd0af 79
Sissors 0:d726461bd0af 80
Sissors 0:d726461bd0af 81
Sissors 0:d726461bd0af 82 private:
Sissors 0:d726461bd0af 83 uint8_t channel;
Sissors 0:d726461bd0af 84 FunctionPointer fpointer;
Sissors 0:d726461bd0af 85
Sissors 0:d726461bd0af 86 void enable(void) {
Sissors 0:d726461bd0af 87 LPC_SYSCON->STARTERP0 |= (1 << channel);
Sissors 0:d726461bd0af 88 NVIC_EnableIRQ((IRQn_Type)channel);
Sissors 0:d726461bd0af 89 }
Sissors 0:d726461bd0af 90
Sissors 0:d726461bd0af 91 void disable(void) {
Sissors 0:d726461bd0af 92 LPC_SYSCON->STARTERP0 &= ~(1 << channel);
Sissors 0:d726461bd0af 93 NVIC_DisableIRQ((IRQn_Type)channel);
Sissors 0:d726461bd0af 94 }
Sissors 0:d726461bd0af 95
Sissors 0:d726461bd0af 96 void handle( void ) {
Sissors 0:d726461bd0af 97 LPC_SYSCON->STARTRSRP0CLR = 1 << channel;
Sissors 0:d726461bd0af 98 fpointer.call();
Sissors 0:d726461bd0af 99 }
Sissors 0:d726461bd0af 100
Sissors 0:d726461bd0af 101 static WakeInterruptIn* objects[NUM_CHANNEL];
Sissors 0:d726461bd0af 102 static void handler0(void) { objects[0]->handle(); }
Sissors 0:d726461bd0af 103 static void handler1(void) { objects[1]->handle(); }
Sissors 0:d726461bd0af 104 static void handler2(void) { objects[2]->handle(); }
Sissors 0:d726461bd0af 105 static void handler3(void) { objects[3]->handle(); }
Sissors 0:d726461bd0af 106 static void handler4(void) { objects[4]->handle(); }
Sissors 0:d726461bd0af 107 static void handler5(void) { objects[5]->handle(); }
Sissors 0:d726461bd0af 108 static void handler6(void) { objects[6]->handle(); }
Sissors 0:d726461bd0af 109 static void handler7(void) { objects[7]->handle(); }
Sissors 0:d726461bd0af 110 static void handler8(void) { objects[8]->handle(); }
Sissors 0:d726461bd0af 111 static void handler9(void) { objects[9]->handle(); }
Sissors 0:d726461bd0af 112 static void handler10(void) { objects[10]->handle(); }
Sissors 0:d726461bd0af 113 static void handler11(void) { objects[11]->handle(); }
Sissors 0:d726461bd0af 114 static void handler12(void) { objects[12]->handle(); }
Sissors 0:d726461bd0af 115
Sissors 0:d726461bd0af 116 };