University of Plymouth - Stages 1, 2 and 3 / Mbed OS Task613Solution-mbeds-FZ429

Updated for stage-3

Fork of Task613Solution-mbeds54 by Nicholas Outram

main.cpp@4:4d74762bf38b, 2019-11-08 (annotated)

Committer:
noutram
Date:
Fri Nov 08 10:45:29 2019 +0000
Revision:
4:4d74762bf38b
Parent:
3:ef46c1ddefed 
2019

Who changed what in which revision?

UserRevisionLine numberNew contents of line
noutram 0:90e393878517 1 #include "mbed.h"
noutram 0:90e393878517 2
noutram 0:90e393878517 3 #define RED_OFF 1
noutram 0:90e393878517 4 #define YELLOW_OFF 2
noutram 0:90e393878517 5 #define GREEN_OFF 4
noutram 0:90e393878517 6 #define ALL_OFF 7
noutram 0:90e393878517 7
noutram 0:90e393878517 8 //Function declarations
noutram 1:948bd552a2a2 9 void Function1();
noutram 1:948bd552a2a2 10 void Function2();
noutram 1:948bd552a2a2 11 void Function3();
noutram 1:948bd552a2a2 12 void Function4();
noutram 0:90e393878517 13
noutram 4:4d74762bf38b 14 typedef struct {
noutram 4:4d74762bf38b 15 float temp;
noutram 4:4d74762bf38b 16 float press;
noutram 4:4d74762bf38b 17 float humid;
noutram 4:4d74762bf38b 18 } Measurement;
noutram 4:4d74762bf38b 19
noutram 4:4d74762bf38b 20 Measurement buffer[120];
noutram 4:4d74762bf38b 21
noutram 4:4d74762bf38b 22
noutram 0:90e393878517 23 //I/O
noutram 0:90e393878517 24 DigitalOut onBoardLED(LED1);
noutram 3:ef46c1ddefed 25 DigitalOut redLED(PE_15);
noutram 3:ef46c1ddefed 26 DigitalOut yellowLED(PB_10);
noutram 3:ef46c1ddefed 27 DigitalOut greenLED(PB_11);
noutram 0:90e393878517 28
noutram 0:90e393878517 29 DigitalIn onBoardSwitch(USER_BUTTON);
noutram 3:ef46c1ddefed 30 DigitalIn SW1(PE_12);
noutram 3:ef46c1ddefed 31 DigitalIn SW2(PE_14);
noutram 0:90e393878517 32
noutram 1:948bd552a2a2 33 Thread t1;
noutram 1:948bd552a2a2 34 Thread t2;
noutram 1:948bd552a2a2 35 Thread t3;
noutram 1:948bd552a2a2 36 Thread t4;
noutram 0:90e393878517 37
noutram 0:90e393878517 38 //Thread ID
noutram 0:90e393878517 39 osThreadId idMain;
noutram 0:90e393878517 40 osThreadId id1;
noutram 0:90e393878517 41 osThreadId id2;
noutram 0:90e393878517 42 osThreadId id3;
noutram 0:90e393878517 43 osThreadId id4;
noutram 0:90e393878517 44
noutram 1:948bd552a2a2 45 void Function1()
noutram 0:90e393878517 46 {
noutram 0:90e393878517 47 while (true) {
noutram 0:90e393878517 48 redLED = !redLED;
noutram 0:90e393878517 49 if (redLED == 0) {
noutram 4:4d74762bf38b 50 t2.flags_set(RED_OFF);
noutram 0:90e393878517 51 }
noutram 0:90e393878517 52 Thread::wait(1000);
noutram 0:90e393878517 53 }
noutram 0:90e393878517 54 }
noutram 0:90e393878517 55
noutram 1:948bd552a2a2 56 void Function2()
noutram 0:90e393878517 57 {
noutram 0:90e393878517 58 while (true) {
noutram 4:4d74762bf38b 59 ThisThread::flags_wait_all(RED_OFF);
noutram 0:90e393878517 60 yellowLED = !yellowLED;
noutram 0:90e393878517 61 if (yellowLED == 0) {
noutram 4:4d74762bf38b 62 t3.flags_set(YELLOW_OFF);
noutram 0:90e393878517 63 }
noutram 0:90e393878517 64 }
noutram 0:90e393878517 65 }
noutram 0:90e393878517 66
noutram 0:90e393878517 67 //Green Flashing
noutram 1:948bd552a2a2 68 void Function3()
noutram 0:90e393878517 69 {
noutram 0:90e393878517 70 while (true) {
noutram 4:4d74762bf38b 71 ThisThread::flags_wait_all(YELLOW_OFF);
noutram 0:90e393878517 72 greenLED = !greenLED;
noutram 0:90e393878517 73 if (greenLED == 0) {
noutram 4:4d74762bf38b 74 t4.flags_set(GREEN_OFF);
noutram 0:90e393878517 75 }
noutram 0:90e393878517 76 }
noutram 0:90e393878517 77 }
noutram 0:90e393878517 78
noutram 0:90e393878517 79 //This function waits for signals from all other threads
noutram 1:948bd552a2a2 80 void Function4()
noutram 0:90e393878517 81 {
noutram 0:90e393878517 82 while (true) {
noutram 4:4d74762bf38b 83 ThisThread::flags_wait_all(GREEN_OFF);
noutram 0:90e393878517 84 //Signal main thread
noutram 0:90e393878517 85 osSignalSet(idMain, ALL_OFF);
noutram 0:90e393878517 86 }
noutram 0:90e393878517 87 }
noutram 0:90e393878517 88
noutram 0:90e393878517 89 //Main thread
noutram 0:90e393878517 90 int main() {
noutram 0:90e393878517 91 redLED = 0;
noutram 0:90e393878517 92 yellowLED = 0;
noutram 0:90e393878517 93 greenLED = 0;
noutram 0:90e393878517 94
noutram 0:90e393878517 95 //Main thread ID
noutram 0:90e393878517 96 idMain = osThreadGetId(); //CMSIS RTOS call
noutram 0:90e393878517 97
noutram 1:948bd552a2a2 98 // run threads
noutram 1:948bd552a2a2 99 t4.start(Function4);
noutram 1:948bd552a2a2 100 t1.start(Function1);
noutram 1:948bd552a2a2 101 t2.start(Function2);
noutram 1:948bd552a2a2 102 t3.start(Function3);
noutram 0:90e393878517 103
noutram 0:90e393878517 104
noutram 0:90e393878517 105 //Thread ID
noutram 4:4d74762bf38b 106 // id1 = t1.gettid();
noutram 4:4d74762bf38b 107 // id2 = t2.gettid();
noutram 4:4d74762bf38b 108 // id3 = t3.gettid();
noutram 4:4d74762bf38b 109 // id4 = t4.gettid();
noutram 0:90e393878517 110
noutram 0:90e393878517 111 while(1) {
noutram 0:90e393878517 112 //Wait for the ALL_ON signal
noutram 0:90e393878517 113 osSignalWait(ALL_OFF,osWaitForever);
noutram 0:90e393878517 114 printf("ALL OFF\n");
noutram 0:90e393878517 115 }
noutram 0:90e393878517 116 }