University of Plymouth - Stages 1, 2 and 3
updated for mbed-os 5.5
Fork of
Task121
by 
Nicholas Outram
main.cpp@11:d7337ffe7f85, 2020-07-16 (annotated)
- Committer:
- noutram
- Date:
- Thu Jul 16 09:47:03 2020 +0100
- Revision:
- 11:d7337ffe7f85
- Parent:
- 9:5ac40ff61514
- Child:
- 12:991c54e21f5f
updated to use onboard LED
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| noutram | 6:6aeae28837c4 | 1 | // Updated 2019 for Mbed-os 5.1X |
| noutram | 6:6aeae28837c4 | 2 | |
| noutram | 0:c742e33896a9 | 3 | //This is known as a “header file” |
| noutram | 0:c742e33896a9 | 4 | //In short, this copies and pastes the text file |
| noutram | 0:c742e33896a9 | 5 | //mbed.h into this code |
| noutram | 0:c742e33896a9 | 6 | #include "mbed.h" |
| noutram | 0:c742e33896a9 | 7 | |
| noutram | 0:c742e33896a9 | 8 | //Create a DigitalOut “object” called myled |
| noutram | 11:d7337ffe7f85 | 9 | //Pass constant LED1 as a “parameter” |
| noutram | 11:d7337ffe7f85 | 10 | DigitalOut myled(LED1); |
| noutram | 0:c742e33896a9 | 11 | |
| noutram | 0:c742e33896a9 | 12 | //The main function - all executable C / C++ |
| noutram | 0:c742e33896a9 | 13 | //applications have a main function. This is |
| noutram | 0:c742e33896a9 | 14 | //out entry point in the software |
| noutram | 0:c742e33896a9 | 15 | int main() { |
| noutram | 0:c742e33896a9 | 16 | |
| noutram | 0:c742e33896a9 | 17 | // ALL the code is contained in a |
| noutram | 0:c742e33896a9 | 18 | // “while loop” |
| noutram | 0:c742e33896a9 | 19 | while(1) |
| noutram | 0:c742e33896a9 | 20 | { |
| noutram | 0:c742e33896a9 | 21 | //The code between the { curly braces } |
| noutram | 0:c742e33896a9 | 22 | //is the code that is repeated |
| noutram | 0:c742e33896a9 | 23 | myled = 1; // External LED is ON |
| noutram | 9:5ac40ff61514 | 24 | wait_us(1000000); // 1 second |
| noutram | 0:c742e33896a9 | 25 | myled = 0; // LED is OFF |
| noutram | 9:5ac40ff61514 | 26 | wait_us(1000000); // External 1 second |
| noutram | 0:c742e33896a9 | 27 | } |
| noutram | 1:a3b418536134 | 28 | } |
| noutram | 1:a3b418536134 | 29 | |
| noutram | 1:a3b418536134 | 30 | |
| noutram | 7:bc61039bc0dc | 31 |