University of Plymouth - Stages 1, 2 and 3
2019
main.cpp@5:5f579d4074a0, 2019-09-20 (annotated)
- Committer:
- noutram
- Date:
- Fri Sep 20 15:14:06 2019 +0000
- Revision:
- 5:5f579d4074a0
- Parent:
- 3:40d2f4b36756
2019
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| noutram | 0:e48f4ddb9393 | 1 | #include "mbed.h" |
| noutram | 0:e48f4ddb9393 | 2 | |
| noutram | 5:5f579d4074a0 | 3 | //updated for 2019 |
| noutram | 0:e48f4ddb9393 | 4 | |
| noutram | 0:e48f4ddb9393 | 5 | //Function declarations |
| noutram | 0:e48f4ddb9393 | 6 | void Function1(); |
| noutram | 0:e48f4ddb9393 | 7 | void Function2(); |
| noutram | 0:e48f4ddb9393 | 8 | |
| noutram | 0:e48f4ddb9393 | 9 | //I/O |
| noutram | 0:e48f4ddb9393 | 10 | DigitalOut onBoardLED(LED1); |
| noutram | 1:20f8dc1354d0 | 11 | DigitalOut redLED(PE_15); |
| noutram | 1:20f8dc1354d0 | 12 | DigitalOut yellowLED(PB_10); |
| noutram | 1:20f8dc1354d0 | 13 | DigitalOut greenLED(PB_11); |
| noutram | 0:e48f4ddb9393 | 14 | |
| noutram | 0:e48f4ddb9393 | 15 | DigitalIn onBoardSwitch(USER_BUTTON); |
| noutram | 1:20f8dc1354d0 | 16 | DigitalIn SW1(PE_12); |
| noutram | 1:20f8dc1354d0 | 17 | DigitalIn SW2(PE_14); |
| noutram | 0:e48f4ddb9393 | 18 | |
| noutram | 1:20f8dc1354d0 | 19 | //Create thread objects |
| noutram | 3:40d2f4b36756 | 20 | Thread t1, t2, t3; |
| noutram | 0:e48f4ddb9393 | 21 | |
| noutram | 1:20f8dc1354d0 | 22 | //Thread |
| noutram | 0:e48f4ddb9393 | 23 | void Function1() |
| noutram | 0:e48f4ddb9393 | 24 | { |
| noutram | 0:e48f4ddb9393 | 25 | while (true) { |
| noutram | 0:e48f4ddb9393 | 26 | redLED = !redLED; |
| noutram | 3:40d2f4b36756 | 27 | ThisThread::sleep_for(2000); |
| noutram | 0:e48f4ddb9393 | 28 | } |
| noutram | 0:e48f4ddb9393 | 29 | } |
| noutram | 0:e48f4ddb9393 | 30 | |
| noutram | 1:20f8dc1354d0 | 31 | //Thread |
| noutram | 0:e48f4ddb9393 | 32 | void Function2() |
| noutram | 0:e48f4ddb9393 | 33 | { |
| noutram | 0:e48f4ddb9393 | 34 | while (true) { |
| noutram | 0:e48f4ddb9393 | 35 | yellowLED = !yellowLED; |
| noutram | 3:40d2f4b36756 | 36 | ThisThread::sleep_for(1000); |
| noutram | 3:40d2f4b36756 | 37 | } |
| noutram | 3:40d2f4b36756 | 38 | } |
| noutram | 3:40d2f4b36756 | 39 | |
| noutram | 3:40d2f4b36756 | 40 | //Green Flashing |
| noutram | 3:40d2f4b36756 | 41 | void Function3() |
| noutram | 3:40d2f4b36756 | 42 | { |
| noutram | 3:40d2f4b36756 | 43 | while (true) { |
| noutram | 3:40d2f4b36756 | 44 | greenLED = !greenLED; |
| noutram | 3:40d2f4b36756 | 45 | ThisThread::sleep_for(500); |
| noutram | 0:e48f4ddb9393 | 46 | } |
| noutram | 0:e48f4ddb9393 | 47 | } |
| noutram | 0:e48f4ddb9393 | 48 | |
| noutram | 0:e48f4ddb9393 | 49 | //Main thread |
| noutram | 0:e48f4ddb9393 | 50 | int main() { |
| noutram | 1:20f8dc1354d0 | 51 | //Initial state |
| noutram | 0:e48f4ddb9393 | 52 | redLED = 0; |
| noutram | 0:e48f4ddb9393 | 53 | yellowLED = 0; |
| noutram | 1:20f8dc1354d0 | 54 | greenLED = 0; |
| noutram | 0:e48f4ddb9393 | 55 | |
| noutram | 1:20f8dc1354d0 | 56 | //Create and run threads (C function pointers) |
| noutram | 0:e48f4ddb9393 | 57 | t1.start(Function1); |
| noutram | 0:e48f4ddb9393 | 58 | t2.start(Function2); |
| noutram | 3:40d2f4b36756 | 59 | t3.start(Function3); |
| noutram | 3:40d2f4b36756 | 60 | |
| noutram | 1:20f8dc1354d0 | 61 | //Main thread loop |
| noutram | 0:e48f4ddb9393 | 62 | while(1) { |
| noutram | 3:40d2f4b36756 | 63 | //ThisThread::sleep_for(osWaitForever); |
| noutram | 3:40d2f4b36756 | 64 | ThisThread::sleep_for(5000); |
| noutram | 1:20f8dc1354d0 | 65 | printf("Main is Awake\n"); //Should not happen when osWaitForever is used |
| noutram | 0:e48f4ddb9393 | 66 | } |
| noutram | 0:e48f4ddb9393 | 67 | } |