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@0:1f4d20070876, 2016-03-08 (annotated)

Committer:
noutram
Date:
Tue Mar 08 11:45:42 2016 +0000
Revision:
0:1f4d20070876
Child:
1:cf2510fcf09a
Task 6.1.3. starting point

Who changed what in which revision?

UserRevisionLine numberNew contents of line
noutram 0:1f4d20070876 1 #include "mbed.h"
noutram 0:1f4d20070876 2 #include "rtos.h"
noutram 0:1f4d20070876 3
noutram 0:1f4d20070876 4 #define RED_ON 1
noutram 0:1f4d20070876 5 #define YELLOW_ON 2
noutram 0:1f4d20070876 6 #define GREEN_ON 4
noutram 0:1f4d20070876 7 #define ALL_ON 7
noutram 0:1f4d20070876 8
noutram 0:1f4d20070876 9 //Function declarations
noutram 0:1f4d20070876 10 void Function1(void const *args);
noutram 0:1f4d20070876 11 void Function2(void const *args);
noutram 0:1f4d20070876 12 void Function3(void const *args);
noutram 0:1f4d20070876 13 void Function4(void const *args);
noutram 0:1f4d20070876 14
noutram 0:1f4d20070876 15 //I/O
noutram 0:1f4d20070876 16 DigitalOut onBoardLED(LED1);
noutram 0:1f4d20070876 17 DigitalOut redLED(D7);
noutram 0:1f4d20070876 18 DigitalOut yellowLED(D6);
noutram 0:1f4d20070876 19 DigitalOut greenLED(D5);
noutram 0:1f4d20070876 20
noutram 0:1f4d20070876 21 DigitalIn onBoardSwitch(USER_BUTTON);
noutram 0:1f4d20070876 22 DigitalIn SW1(D4);
noutram 0:1f4d20070876 23 DigitalIn SW2(D3);
noutram 0:1f4d20070876 24
noutram 0:1f4d20070876 25 Thread* t1;
noutram 0:1f4d20070876 26 Thread* t2;
noutram 0:1f4d20070876 27 Thread* t3;
noutram 0:1f4d20070876 28 Thread* t4;
noutram 0:1f4d20070876 29
noutram 0:1f4d20070876 30 //Thread ID
noutram 0:1f4d20070876 31 osThreadId idMain;
noutram 0:1f4d20070876 32 osThreadId id1;
noutram 0:1f4d20070876 33 osThreadId id2;
noutram 0:1f4d20070876 34 osThreadId id3;
noutram 0:1f4d20070876 35 osThreadId id4;
noutram 0:1f4d20070876 36
noutram 0:1f4d20070876 37 void Function1(void const *args)
noutram 0:1f4d20070876 38 {
noutram 0:1f4d20070876 39 while (true) {
noutram 0:1f4d20070876 40 redLED = !redLED;
noutram 0:1f4d20070876 41 if (redLED == 1) {
noutram 0:1f4d20070876 42 t4->signal_set(RED_ON);
noutram 0:1f4d20070876 43 }
noutram 0:1f4d20070876 44
noutram 0:1f4d20070876 45 Thread::wait(5100);
noutram 0:1f4d20070876 46 }
noutram 0:1f4d20070876 47 }
noutram 0:1f4d20070876 48
noutram 0:1f4d20070876 49 void Function2(void const *args)
noutram 0:1f4d20070876 50 {
noutram 0:1f4d20070876 51 while (true) {
noutram 0:1f4d20070876 52 yellowLED = !yellowLED;
noutram 0:1f4d20070876 53 if (yellowLED == 1) {
noutram 0:1f4d20070876 54 t4->signal_set(YELLOW_ON);
noutram 0:1f4d20070876 55 }
noutram 0:1f4d20070876 56 Thread::wait(1900);
noutram 0:1f4d20070876 57 }
noutram 0:1f4d20070876 58 }
noutram 0:1f4d20070876 59
noutram 0:1f4d20070876 60 //Green Flashing
noutram 0:1f4d20070876 61 void Function3(void const *args)
noutram 0:1f4d20070876 62 {
noutram 0:1f4d20070876 63 while (true) {
noutram 0:1f4d20070876 64 greenLED = !greenLED;
noutram 0:1f4d20070876 65 if (greenLED == 1) {
noutram 0:1f4d20070876 66 t4->signal_set(GREEN_ON);
noutram 0:1f4d20070876 67 }
noutram 0:1f4d20070876 68 Thread::wait(700);
noutram 0:1f4d20070876 69 }
noutram 0:1f4d20070876 70 }
noutram 0:1f4d20070876 71
noutram 0:1f4d20070876 72 //This function waits for signals from all other threads
noutram 0:1f4d20070876 73 void Function4(void const *args)
noutram 0:1f4d20070876 74 {
noutram 0:1f4d20070876 75 while (true) {
noutram 0:1f4d20070876 76
noutram 0:1f4d20070876 77 Thread::signal_wait(RED_ON);
noutram 0:1f4d20070876 78 printf("Red\n");
noutram 0:1f4d20070876 79 Thread::signal_wait(YELLOW_ON);
noutram 0:1f4d20070876 80 printf("Yellow\n");
noutram 0:1f4d20070876 81 Thread::signal_wait(GREEN_ON);
noutram 0:1f4d20070876 82 printf("Green\n");
noutram 0:1f4d20070876 83 //Signal main thread
noutram 0:1f4d20070876 84 osSignalSet(idMain, ALL_ON);
noutram 0:1f4d20070876 85 }
noutram 0:1f4d20070876 86 }
noutram 0:1f4d20070876 87
noutram 0:1f4d20070876 88 //Main thread
noutram 0:1f4d20070876 89 int main() {
noutram 0:1f4d20070876 90 redLED = 1;
noutram 0:1f4d20070876 91 yellowLED = 0;
noutram 0:1f4d20070876 92 greenLED = 0;
noutram 0:1f4d20070876 93
noutram 0:1f4d20070876 94 //Main thread ID
noutram 0:1f4d20070876 95 idMain = osThreadGetId(); //CMSIS RTOS call
noutram 0:1f4d20070876 96
noutram 0:1f4d20070876 97 //Create and run threads
noutram 0:1f4d20070876 98 t4 = new Thread(Function4);
noutram 0:1f4d20070876 99 t1 = new Thread(Function1);
noutram 0:1f4d20070876 100 t2 = new Thread(Function2);
noutram 0:1f4d20070876 101 t3 = new Thread(Function3); //Dynamically allocated
noutram 0:1f4d20070876 102
noutram 0:1f4d20070876 103
noutram 0:1f4d20070876 104 //Thread ID
noutram 0:1f4d20070876 105 id1 = t1->gettid();
noutram 0:1f4d20070876 106 id2 = t2->gettid();
noutram 0:1f4d20070876 107 id3 = t3->gettid();
noutram 0:1f4d20070876 108 id4 = t4->gettid();
noutram 0:1f4d20070876 109
noutram 0:1f4d20070876 110 while(1) {
noutram 0:1f4d20070876 111 //Wait for the ALL_ON signal
noutram 0:1f4d20070876 112 osSignalWait(ALL_ON,osWaitForever);
noutram 0:1f4d20070876 113 printf("ALL\n");
noutram 0:1f4d20070876 114 }
noutram 0:1f4d20070876 115 }