Stage-1 Students SoCEM
Task 3.2.2 Solution
Dependencies: mbed
main.cpp@0:363a62c6c97c, 2015-09-24 (annotated)
- Committer:
- noutram
- Date:
- Thu Sep 24 12:25:31 2015 +0000
- Revision:
- 0:363a62c6c97c
Initial version 24-09-2015
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| noutram | 0:363a62c6c97c | 1 | #include "mbed.h" |
| noutram | 0:363a62c6c97c | 2 | |
| noutram | 0:363a62c6c97c | 3 | DigitalOut red_led(D7); |
| noutram | 0:363a62c6c97c | 4 | DigitalOut yellow_led(D6); |
| noutram | 0:363a62c6c97c | 5 | DigitalOut green_led(D5); |
| noutram | 0:363a62c6c97c | 6 | DigitalIn SW1(D4); |
| noutram | 0:363a62c6c97c | 7 | |
| noutram | 0:363a62c6c97c | 8 | //This is the solution based on the proposed flowchart. |
| noutram | 0:363a62c6c97c | 9 | //It is flawed however (see next exercise) due to |
| noutram | 0:363a62c6c97c | 10 | //switch bounce. |
| noutram | 0:363a62c6c97c | 11 | |
| noutram | 0:363a62c6c97c | 12 | int main() { |
| noutram | 0:363a62c6c97c | 13 | |
| noutram | 0:363a62c6c97c | 14 | //Switch on Yellow and Green to indicate |
| noutram | 0:363a62c6c97c | 15 | //that the code is running |
| noutram | 0:363a62c6c97c | 16 | yellow_led = 1; |
| noutram | 0:363a62c6c97c | 17 | green_led = 1; |
| noutram | 0:363a62c6c97c | 18 | red_led = 0; //Set RED LED to OFF |
| noutram | 0:363a62c6c97c | 19 | |
| noutram | 0:363a62c6c97c | 20 | // Wait for SW1 to be pressed |
| noutram | 0:363a62c6c97c | 21 | while (SW1 == 0) { } |
| noutram | 0:363a62c6c97c | 22 | |
| noutram | 0:363a62c6c97c | 23 | // Wait for SW1 to be released |
| noutram | 0:363a62c6c97c | 24 | while (SW1 == 1) { } |
| noutram | 0:363a62c6c97c | 25 | |
| noutram | 0:363a62c6c97c | 26 | red_led = 1; //Turn ON LED |
| noutram | 0:363a62c6c97c | 27 | |
| noutram | 0:363a62c6c97c | 28 | while (1) { } //Repeat forever |
| noutram | 0:363a62c6c97c | 29 | } |