Nicholas Outram / Mbed OS Task613-mbedos54

Task 6.1.3 Starting point updated for mbed OS 5.4

Fork of Task613-mbedos54 by Stage-1 Students SoCEM

main.cpp@1:cf2510fcf09a, 2017-03-30 (annotated)

Committer:
noutram
Date:
Thu Mar 30 13:52:37 2017 +0000
Revision:
1:cf2510fcf09a
Parent:
0:1f4d20070876 
updated for mbed OS 5.4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
noutram 0:1f4d20070876 1 #include "mbed.h"
noutram 0:1f4d20070876 2
noutram 0:1f4d20070876 3 #define RED_ON 1
noutram 0:1f4d20070876 4 #define YELLOW_ON 2
noutram 0:1f4d20070876 5 #define GREEN_ON 4
noutram 0:1f4d20070876 6 #define ALL_ON 7
noutram 0:1f4d20070876 7
noutram 0:1f4d20070876 8 //Function declarations
noutram 1:cf2510fcf09a 9 void Function1();
noutram 1:cf2510fcf09a 10 void Function2();
noutram 1:cf2510fcf09a 11 void Function3();
noutram 1:cf2510fcf09a 12 void Function4();
noutram 0:1f4d20070876 13
noutram 0:1f4d20070876 14 //I/O
noutram 0:1f4d20070876 15 DigitalOut onBoardLED(LED1);
noutram 0:1f4d20070876 16 DigitalOut redLED(D7);
noutram 0:1f4d20070876 17 DigitalOut yellowLED(D6);
noutram 0:1f4d20070876 18 DigitalOut greenLED(D5);
noutram 0:1f4d20070876 19
noutram 0:1f4d20070876 20 DigitalIn onBoardSwitch(USER_BUTTON);
noutram 0:1f4d20070876 21 DigitalIn SW1(D4);
noutram 0:1f4d20070876 22 DigitalIn SW2(D3);
noutram 0:1f4d20070876 23
noutram 1:cf2510fcf09a 24 Thread t1;
noutram 1:cf2510fcf09a 25 Thread t2;
noutram 1:cf2510fcf09a 26 Thread t3;
noutram 1:cf2510fcf09a 27 Thread t4;
noutram 0:1f4d20070876 28
noutram 0:1f4d20070876 29 //Thread ID
noutram 0:1f4d20070876 30 osThreadId idMain;
noutram 0:1f4d20070876 31 osThreadId id1;
noutram 0:1f4d20070876 32 osThreadId id2;
noutram 0:1f4d20070876 33 osThreadId id3;
noutram 0:1f4d20070876 34 osThreadId id4;
noutram 0:1f4d20070876 35
noutram 1:cf2510fcf09a 36 void Function1()
noutram 0:1f4d20070876 37 {
noutram 0:1f4d20070876 38 while (true) {
noutram 0:1f4d20070876 39 redLED = !redLED;
noutram 0:1f4d20070876 40 if (redLED == 1) {
noutram 1:cf2510fcf09a 41 t4.signal_set(RED_ON);
noutram 0:1f4d20070876 42 }
noutram 0:1f4d20070876 43
noutram 0:1f4d20070876 44 Thread::wait(5100);
noutram 0:1f4d20070876 45 }
noutram 0:1f4d20070876 46 }
noutram 0:1f4d20070876 47
noutram 1:cf2510fcf09a 48 void Function2()
noutram 0:1f4d20070876 49 {
noutram 0:1f4d20070876 50 while (true) {
noutram 0:1f4d20070876 51 yellowLED = !yellowLED;
noutram 0:1f4d20070876 52 if (yellowLED == 1) {
noutram 1:cf2510fcf09a 53 t4.signal_set(YELLOW_ON);
noutram 0:1f4d20070876 54 }
noutram 0:1f4d20070876 55 Thread::wait(1900);
noutram 0:1f4d20070876 56 }
noutram 0:1f4d20070876 57 }
noutram 0:1f4d20070876 58
noutram 0:1f4d20070876 59 //Green Flashing
noutram 1:cf2510fcf09a 60 void Function3()
noutram 0:1f4d20070876 61 {
noutram 0:1f4d20070876 62 while (true) {
noutram 0:1f4d20070876 63 greenLED = !greenLED;
noutram 0:1f4d20070876 64 if (greenLED == 1) {
noutram 1:cf2510fcf09a 65 t4.signal_set(GREEN_ON);
noutram 0:1f4d20070876 66 }
noutram 0:1f4d20070876 67 Thread::wait(700);
noutram 0:1f4d20070876 68 }
noutram 0:1f4d20070876 69 }
noutram 0:1f4d20070876 70
noutram 0:1f4d20070876 71 //This function waits for signals from all other threads
noutram 1:cf2510fcf09a 72 void Function4()
noutram 0:1f4d20070876 73 {
noutram 0:1f4d20070876 74 while (true) {
noutram 0:1f4d20070876 75
noutram 0:1f4d20070876 76 Thread::signal_wait(RED_ON);
noutram 0:1f4d20070876 77 printf("Red\n");
noutram 0:1f4d20070876 78 Thread::signal_wait(YELLOW_ON);
noutram 0:1f4d20070876 79 printf("Yellow\n");
noutram 0:1f4d20070876 80 Thread::signal_wait(GREEN_ON);
noutram 0:1f4d20070876 81 printf("Green\n");
noutram 0:1f4d20070876 82 //Signal main thread
noutram 0:1f4d20070876 83 osSignalSet(idMain, ALL_ON);
noutram 0:1f4d20070876 84 }
noutram 0:1f4d20070876 85 }
noutram 0:1f4d20070876 86
noutram 0:1f4d20070876 87 //Main thread
noutram 0:1f4d20070876 88 int main() {
noutram 0:1f4d20070876 89 redLED = 1;
noutram 0:1f4d20070876 90 yellowLED = 0;
noutram 0:1f4d20070876 91 greenLED = 0;
noutram 0:1f4d20070876 92
noutram 0:1f4d20070876 93 //Main thread ID
noutram 0:1f4d20070876 94 idMain = osThreadGetId(); //CMSIS RTOS call
noutram 0:1f4d20070876 95
noutram 1:cf2510fcf09a 96 //Run threads
noutram 1:cf2510fcf09a 97 t4.start(Function4);
noutram 1:cf2510fcf09a 98 t1.start(Function1);
noutram 1:cf2510fcf09a 99 t2.start(Function2);
noutram 1:cf2510fcf09a 100 t3.start(Function3);
noutram 0:1f4d20070876 101
noutram 0:1f4d20070876 102
noutram 0:1f4d20070876 103 //Thread ID
noutram 1:cf2510fcf09a 104 id1 = t1.gettid();
noutram 1:cf2510fcf09a 105 id2 = t2.gettid();
noutram 1:cf2510fcf09a 106 id3 = t3.gettid();
noutram 1:cf2510fcf09a 107 id4 = t4.gettid();
noutram 0:1f4d20070876 108
noutram 0:1f4d20070876 109 while(1) {
noutram 0:1f4d20070876 110 //Wait for the ALL_ON signal
noutram 0:1f4d20070876 111 osSignalWait(ALL_ON,osWaitForever);
noutram 0:1f4d20070876 112 printf("ALL\n");
noutram 0:1f4d20070876 113 }
noutram 0:1f4d20070876 114 }