EmbeddedArtists AB / Mbed 2 deprecated lpc812_exp_solution_interrupts

Solutions for the Interrupts experiments for LPC812 MAX

Dependencies:   mbed

main.cpp@0:0614a4add2d3, 2013-11-24 (annotated)

Committer:
embeddedartists
Date:
Sun Nov 24 12:03:56 2013 +0000
Revision:
0:0614a4add2d3
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:0614a4add2d3 1 #include "mbed.h"
embeddedartists 0:0614a4add2d3 2
embeddedartists 0:0614a4add2d3 3 InterruptIn event(D0);
embeddedartists 0:0614a4add2d3 4
embeddedartists 0:0614a4add2d3 5 DigitalOut greenLED(LED_GREEN);
embeddedartists 0:0614a4add2d3 6 DigitalOut redLED(LED_RED);
embeddedartists 0:0614a4add2d3 7 DigitalOut blueLED(LED_BLUE);
embeddedartists 0:0614a4add2d3 8
embeddedartists 0:0614a4add2d3 9 DigitalIn button(D0);
embeddedartists 0:0614a4add2d3 10
embeddedartists 0:0614a4add2d3 11 Ticker timer;
embeddedartists 0:0614a4add2d3 12 Ticker timerGreen;
embeddedartists 0:0614a4add2d3 13 Ticker timerBlue;
embeddedartists 0:0614a4add2d3 14
embeddedartists 0:0614a4add2d3 15
embeddedartists 0:0614a4add2d3 16 void trigger_alt1() {
embeddedartists 0:0614a4add2d3 17 // add code to blink the LED
embeddedartists 0:0614a4add2d3 18 redLED = 0;
embeddedartists 0:0614a4add2d3 19 }
embeddedartists 0:0614a4add2d3 20
embeddedartists 0:0614a4add2d3 21 static void experiment1_alt1()
embeddedartists 0:0614a4add2d3 22 {
embeddedartists 0:0614a4add2d3 23 redLED = greenLED = blueLED = 1; // Turn LEDs off
embeddedartists 0:0614a4add2d3 24
embeddedartists 0:0614a4add2d3 25 // Register the handler for falling edges
embeddedartists 0:0614a4add2d3 26 event.mode(PullUp);
embeddedartists 0:0614a4add2d3 27 event.fall(&trigger_alt1);
embeddedartists 0:0614a4add2d3 28 while(1) {
embeddedartists 0:0614a4add2d3 29 //redLED = 1;
embeddedartists 0:0614a4add2d3 30 }
embeddedartists 0:0614a4add2d3 31 }
embeddedartists 0:0614a4add2d3 32
embeddedartists 0:0614a4add2d3 33 void trigger_alt2() {
embeddedartists 0:0614a4add2d3 34 greenLED = 0;
embeddedartists 0:0614a4add2d3 35 while (!button) {
embeddedartists 0:0614a4add2d3 36 }
embeddedartists 0:0614a4add2d3 37 greenLED = 1;
embeddedartists 0:0614a4add2d3 38 }
embeddedartists 0:0614a4add2d3 39
embeddedartists 0:0614a4add2d3 40 static void experiment1_alt2()
embeddedartists 0:0614a4add2d3 41 {
embeddedartists 0:0614a4add2d3 42 // Register the handler for falling edges
embeddedartists 0:0614a4add2d3 43 event.mode(PullUp);
embeddedartists 0:0614a4add2d3 44 event.fall(&trigger_alt2);
embeddedartists 0:0614a4add2d3 45
embeddedartists 0:0614a4add2d3 46 // Turn LEDs off
embeddedartists 0:0614a4add2d3 47 greenLED = 1;
embeddedartists 0:0614a4add2d3 48 redLED = 1;
embeddedartists 0:0614a4add2d3 49 blueLED = 1;
embeddedartists 0:0614a4add2d3 50
embeddedartists 0:0614a4add2d3 51 while(1) {
embeddedartists 0:0614a4add2d3 52 redLED = !redLED;
embeddedartists 0:0614a4add2d3 53 wait(0.1);
embeddedartists 0:0614a4add2d3 54 }
embeddedartists 0:0614a4add2d3 55 }
embeddedartists 0:0614a4add2d3 56
embeddedartists 0:0614a4add2d3 57
embeddedartists 0:0614a4add2d3 58 static void ticker_event()
embeddedartists 0:0614a4add2d3 59 {
embeddedartists 0:0614a4add2d3 60 static bool on = false;
embeddedartists 0:0614a4add2d3 61 on = !on;
embeddedartists 0:0614a4add2d3 62
embeddedartists 0:0614a4add2d3 63 // add code to blink the LED
embeddedartists 0:0614a4add2d3 64 redLED = (on ? 0 : 1);
embeddedartists 0:0614a4add2d3 65 }
embeddedartists 0:0614a4add2d3 66
embeddedartists 0:0614a4add2d3 67 static void experiment2_alt1()
embeddedartists 0:0614a4add2d3 68 {
embeddedartists 0:0614a4add2d3 69 redLED = greenLED = blueLED = 1; // Turn LEDs off
embeddedartists 0:0614a4add2d3 70
embeddedartists 0:0614a4add2d3 71 // Request the timer function to be called every 5 seconds
embeddedartists 0:0614a4add2d3 72 timer.attach(&ticker_event, 5);
embeddedartists 0:0614a4add2d3 73 while(1) {
embeddedartists 0:0614a4add2d3 74 ;
embeddedartists 0:0614a4add2d3 75 }
embeddedartists 0:0614a4add2d3 76 }
embeddedartists 0:0614a4add2d3 77
embeddedartists 0:0614a4add2d3 78 static void ticker_event_green()
embeddedartists 0:0614a4add2d3 79 {
embeddedartists 0:0614a4add2d3 80 static bool on = false;
embeddedartists 0:0614a4add2d3 81 on = !on;
embeddedartists 0:0614a4add2d3 82
embeddedartists 0:0614a4add2d3 83 // add code to blink the LED
embeddedartists 0:0614a4add2d3 84 greenLED = (on ? 0 : 1);
embeddedartists 0:0614a4add2d3 85 }
embeddedartists 0:0614a4add2d3 86 static void ticker_event_blue()
embeddedartists 0:0614a4add2d3 87 {
embeddedartists 0:0614a4add2d3 88 static bool on = true;
embeddedartists 0:0614a4add2d3 89 on = !on;
embeddedartists 0:0614a4add2d3 90
embeddedartists 0:0614a4add2d3 91 // add code to blink the LED
embeddedartists 0:0614a4add2d3 92 blueLED = (on ? 0 : 1);
embeddedartists 0:0614a4add2d3 93 }
embeddedartists 0:0614a4add2d3 94 static void experiment2_alt2()
embeddedartists 0:0614a4add2d3 95 {
embeddedartists 0:0614a4add2d3 96 redLED = greenLED = blueLED = 1; // Turn LEDs off
embeddedartists 0:0614a4add2d3 97
embeddedartists 0:0614a4add2d3 98 // Create one timer for each color. If the same timer is used then only
embeddedartists 0:0614a4add2d3 99 // the last call to attach will work (previous calls are overwritten)
embeddedartists 0:0614a4add2d3 100 timer.attach(&ticker_event, 0.4);
embeddedartists 0:0614a4add2d3 101 timerGreen.attach(&ticker_event_green, 0.2);
embeddedartists 0:0614a4add2d3 102 timerBlue.attach(&ticker_event_blue, 0.1);
embeddedartists 0:0614a4add2d3 103 while(1) {
embeddedartists 0:0614a4add2d3 104 ;
embeddedartists 0:0614a4add2d3 105 }
embeddedartists 0:0614a4add2d3 106 }
embeddedartists 0:0614a4add2d3 107
embeddedartists 0:0614a4add2d3 108
embeddedartists 0:0614a4add2d3 109 int main()
embeddedartists 0:0614a4add2d3 110 {
embeddedartists 0:0614a4add2d3 111 //experiment1_alt1(); //simple trigger
embeddedartists 0:0614a4add2d3 112 //experiment1_alt2(); //trigger which takes time to complete
embeddedartists 0:0614a4add2d3 113 //experiment2_alt1(); //blinks the RED led every 5 seconds
embeddedartists 0:0614a4add2d3 114 experiment2_alt2(); //blinks all three components of the RGB LED
embeddedartists 0:0614a4add2d3 115 }