Michael Dushkoff / Mbed 2 deprecated EndingLine

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

main.cpp@1:d7651ce5d59b, 2013-05-13 (annotated)

Committer:
mdu7078
Date:
Mon May 13 16:24:58 2013 +0000
Revision:
1:d7651ce5d59b
Parent:
0:bcdc97617c5d 
Ending line complete.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mdu7078 0:bcdc97617c5d 1 /* * * * * * * * * * * * * * * * * * * * * * * * * * *
mdu7078 0:bcdc97617c5d 2 * This detects a winner in a two person race by *
mdu7078 0:bcdc97617c5d 3 * detecting when there is a break in the signal *
mdu7078 0:bcdc97617c5d 4 * sent to two different pins. When the winner is *
mdu7078 0:bcdc97617c5d 5 * detected, the corresponding LED is lit. *
mdu7078 0:bcdc97617c5d 6 * *
mdu7078 0:bcdc97617c5d 7 * Created by: Michael Dushkoff (mad1841@rit.edu) *
mdu7078 0:bcdc97617c5d 8 * * * * * * * * * * * * * * * * * * * * * * * * * * */
mdu7078 0:bcdc97617c5d 9 #include "mbed.h"
mdu7078 0:bcdc97617c5d 10
mdu7078 1:d7651ce5d59b 11 /* This is a print button that allows the time to be outputted */
mdu7078 1:d7651ce5d59b 12 DigitalIn button(p30);
mdu7078 1:d7651ce5d59b 13
mdu7078 1:d7651ce5d59b 14 /* Tells when to stop the timer */
mdu7078 1:d7651ce5d59b 15 int end1 = 0;
mdu7078 1:d7651ce5d59b 16 int end2 = 0;
mdu7078 1:d7651ce5d59b 17
mdu7078 1:d7651ce5d59b 18 /* Rise detection */
mdu7078 1:d7651ce5d59b 19 int rise = 0;
mdu7078 1:d7651ce5d59b 20
mdu7078 1:d7651ce5d59b 21 /* Create two individual timers */
mdu7078 1:d7651ce5d59b 22 Timer t1;
mdu7078 1:d7651ce5d59b 23 Timer t2;
mdu7078 1:d7651ce5d59b 24
mdu7078 1:d7651ce5d59b 25 /* Recieving pin */
mdu7078 1:d7651ce5d59b 26 InterruptIn rxo(p10);
mdu7078 1:d7651ce5d59b 27
mdu7078 0:bcdc97617c5d 28 /* Interrupt sensors */
mdu7078 0:bcdc97617c5d 29 InterruptIn sEnd1(p20);
mdu7078 0:bcdc97617c5d 30 InterruptIn sEnd2(p21);
mdu7078 0:bcdc97617c5d 31
mdu7078 0:bcdc97617c5d 32 /* Indicator LEDs */
mdu7078 1:d7651ce5d59b 33 DigitalOut iled1(p22);
mdu7078 1:d7651ce5d59b 34 DigitalOut iled2(p23);
mdu7078 1:d7651ce5d59b 35
mdu7078 1:d7651ce5d59b 36 /* Status LEDs */
mdu7078 1:d7651ce5d59b 37 DigitalOut sled1(LED1);
mdu7078 1:d7651ce5d59b 38 DigitalOut sled2(LED2);
mdu7078 1:d7651ce5d59b 39 DigitalOut sled3(LED3);
mdu7078 1:d7651ce5d59b 40 DigitalOut sled4(LED4);
mdu7078 1:d7651ce5d59b 41
mdu7078 1:d7651ce5d59b 42 /* Winner LEDs */
mdu7078 1:d7651ce5d59b 43 DigitalOut wled11(p11); // Gate 1 Win
mdu7078 1:d7651ce5d59b 44 DigitalOut wled12(p12); // Gate 1 Win
mdu7078 1:d7651ce5d59b 45 DigitalOut wled13(p13); // Gate 1 Win
mdu7078 1:d7651ce5d59b 46 DigitalOut wled21(p36); // Gate 2 Win
mdu7078 1:d7651ce5d59b 47 DigitalOut wled22(p35); // Gate 2 Win
mdu7078 1:d7651ce5d59b 48 DigitalOut wled23(p34); // Gate 2 Win
mdu7078 0:bcdc97617c5d 49
mdu7078 0:bcdc97617c5d 50 /* Tells when there is a winner */
mdu7078 0:bcdc97617c5d 51 int win = 0;
mdu7078 0:bcdc97617c5d 52
mdu7078 1:d7651ce5d59b 53 /* Pulsed recieving */
mdu7078 1:d7651ce5d59b 54 int rxc = 0;
mdu7078 1:d7651ce5d59b 55
mdu7078 1:d7651ce5d59b 56 /* This detects a transmitted signal */
mdu7078 1:d7651ce5d59b 57 void recieve(){
mdu7078 1:d7651ce5d59b 58 if (rxc >= 1){
mdu7078 1:d7651ce5d59b 59 /* Set status LEDs */
mdu7078 1:d7651ce5d59b 60 sled2 = 1;
mdu7078 1:d7651ce5d59b 61 sled3 = 1;
mdu7078 1:d7651ce5d59b 62
mdu7078 1:d7651ce5d59b 63 /* Start timers */
mdu7078 1:d7651ce5d59b 64 t1.start();
mdu7078 1:d7651ce5d59b 65 t2.start();
mdu7078 1:d7651ce5d59b 66 }
mdu7078 1:d7651ce5d59b 67 rxc += 1;
mdu7078 1:d7651ce5d59b 68 }
mdu7078 1:d7651ce5d59b 69
mdu7078 0:bcdc97617c5d 70 /* This detects interrupt 1 */
mdu7078 0:bcdc97617c5d 71 void l1(){
mdu7078 0:bcdc97617c5d 72 if (win == 0){
mdu7078 0:bcdc97617c5d 73 iled1 = 1;
mdu7078 0:bcdc97617c5d 74 win = 1;
mdu7078 1:d7651ce5d59b 75 wled11 = 1;
mdu7078 1:d7651ce5d59b 76 wled12 = 1;
mdu7078 1:d7651ce5d59b 77 wled13 = 1;
mdu7078 0:bcdc97617c5d 78 }
mdu7078 1:d7651ce5d59b 79 end1 = 1;
mdu7078 1:d7651ce5d59b 80 sled1 = 1; // Set status LED
mdu7078 1:d7651ce5d59b 81 t1.stop(); // Stop timer 1
mdu7078 0:bcdc97617c5d 82 }
mdu7078 0:bcdc97617c5d 83
mdu7078 0:bcdc97617c5d 84 /* This detects interrupt 2 */
mdu7078 0:bcdc97617c5d 85 void l2(){
mdu7078 0:bcdc97617c5d 86 if (win == 0){
mdu7078 0:bcdc97617c5d 87 iled2 = 1;
mdu7078 0:bcdc97617c5d 88 win = 1;
mdu7078 1:d7651ce5d59b 89 wled21 = 1;
mdu7078 1:d7651ce5d59b 90 wled22 = 1;
mdu7078 1:d7651ce5d59b 91 wled23 = 1;
mdu7078 0:bcdc97617c5d 92 }
mdu7078 1:d7651ce5d59b 93 end2 = 1;
mdu7078 1:d7651ce5d59b 94 sled4 = 1; // Set status LED
mdu7078 1:d7651ce5d59b 95 t2.stop(); // Stop timer 2
mdu7078 0:bcdc97617c5d 96 }
mdu7078 0:bcdc97617c5d 97
mdu7078 0:bcdc97617c5d 98 int main() {
mdu7078 0:bcdc97617c5d 99 /* Set the LEDs off */
mdu7078 0:bcdc97617c5d 100 iled1 = 0;
mdu7078 0:bcdc97617c5d 101 iled2 = 0;
mdu7078 1:d7651ce5d59b 102 sled1 = 0;
mdu7078 1:d7651ce5d59b 103 sled2 = 0;
mdu7078 1:d7651ce5d59b 104 sled3 = 0;
mdu7078 1:d7651ce5d59b 105 sled4 = 0;
mdu7078 1:d7651ce5d59b 106 wled11 = 0;
mdu7078 1:d7651ce5d59b 107 wled12 = 0;
mdu7078 1:d7651ce5d59b 108 wled13 = 0;
mdu7078 1:d7651ce5d59b 109 wled21 = 0;
mdu7078 1:d7651ce5d59b 110 wled22 = 0;
mdu7078 1:d7651ce5d59b 111 wled23 = 0;
mdu7078 0:bcdc97617c5d 112
mdu7078 0:bcdc97617c5d 113 /* Attach interrupt service routine to pins */
mdu7078 0:bcdc97617c5d 114 sEnd1.fall(&l1);
mdu7078 0:bcdc97617c5d 115 sEnd2.fall(&l2);
mdu7078 1:d7651ce5d59b 116 rxo.rise(&recieve);
mdu7078 0:bcdc97617c5d 117
mdu7078 1:d7651ce5d59b 118 printf("Ready!\n\r");
mdu7078 0:bcdc97617c5d 119 while(1) {
mdu7078 1:d7651ce5d59b 120 if (button.read() == 1 && rise == 0){
mdu7078 1:d7651ce5d59b 121 /* Set rise detector to high */
mdu7078 1:d7651ce5d59b 122 rise = 1;
mdu7078 1:d7651ce5d59b 123
mdu7078 1:d7651ce5d59b 124 /* Check Track 1 */
mdu7078 1:d7651ce5d59b 125 if (end1 == 1){
mdu7078 1:d7651ce5d59b 126 printf("========== Track 1 Time ==========\n\r");
mdu7078 1:d7651ce5d59b 127 printf(" Finished in: %lf seconds\n\r", t1.read());
mdu7078 1:d7651ce5d59b 128 printf("==================================\n\r\n\r");
mdu7078 1:d7651ce5d59b 129 }
mdu7078 1:d7651ce5d59b 130 else {
mdu7078 1:d7651ce5d59b 131 printf("Track 1 has not finished\n\r\n\r");
mdu7078 1:d7651ce5d59b 132 }
mdu7078 1:d7651ce5d59b 133
mdu7078 1:d7651ce5d59b 134 /* Check Track 2 */
mdu7078 1:d7651ce5d59b 135 if (end2 == 1){
mdu7078 1:d7651ce5d59b 136 printf("========== Track 2 Time ==========\n\r");
mdu7078 1:d7651ce5d59b 137 printf(" Finished in: %lf seconds\n\r", t2.read());
mdu7078 1:d7651ce5d59b 138 printf("==================================\n\r\n\r");
mdu7078 1:d7651ce5d59b 139 }
mdu7078 1:d7651ce5d59b 140 else {
mdu7078 1:d7651ce5d59b 141 printf("Track 2 has not finished\n\r\n\r");
mdu7078 1:d7651ce5d59b 142 }
mdu7078 1:d7651ce5d59b 143 }
mdu7078 1:d7651ce5d59b 144 else if (button.read() == 0 && rise == 1){
mdu7078 1:d7651ce5d59b 145 /* Reset rise detection */
mdu7078 1:d7651ce5d59b 146 rise = 2;
mdu7078 1:d7651ce5d59b 147 wait (0.001); //Debounce
mdu7078 1:d7651ce5d59b 148 }
mdu7078 1:d7651ce5d59b 149 else if (button.read() == 0 && rise == 2){
mdu7078 1:d7651ce5d59b 150 rise = 0;
mdu7078 1:d7651ce5d59b 151 }
mdu7078 0:bcdc97617c5d 152 }
mdu7078 0:bcdc97617c5d 153 }