University of Plymouth - Stages 1, 2 and 3 / Mbed OS Task330_blocking

Solution to the blocking task - do not expect this to work well however!

Fork of Task330_blocking by University of Plymouth - Stages 1, 2 and 3

main.cpp@6:2050203fd22b, 2019-09-18 (annotated)

Committer:
noutram
Date:
Wed Sep 18 10:49:18 2019 +0000
Revision:
6:2050203fd22b
Parent:
5:a9a9d3b7f62a 
2019

Who changed what in which revision?

UserRevisionLine numberNew contents of line
noutram 0:397b84c74d17 1 #include "mbed.h"
noutram 0:397b84c74d17 2 #define N 1000000
noutram 0:397b84c74d17 3 #define RELEASED 0
noutram 0:397b84c74d17 4 #define PRESSED 1
noutram 6:2050203fd22b 5 #include "demo-self-test.hpp"
noutram 6:2050203fd22b 6
noutram 0:397b84c74d17 7
noutram 0:397b84c74d17 8 //Hardware objects
noutram 0:397b84c74d17 9 DigitalOut red_led(PE_15); //CountUp is in its critical section
noutram 0:397b84c74d17 10 DigitalOut yellow_led(PB_10); //CountDown is in its critical section
noutram 0:397b84c74d17 11 DigitalOut green_led(PB_11); //counter != 0
noutram 0:397b84c74d17 12 DigitalOut onboardLED(LED1);
noutram 0:397b84c74d17 13
noutram 0:397b84c74d17 14 DigitalIn button(USER_BUTTON);
noutram 0:397b84c74d17 15 DigitalIn sw1(PE_12);
noutram 0:397b84c74d17 16 DigitalIn sw2(PE_14);
noutram 0:397b84c74d17 17
noutram 2:ca251bdda621 18 //The code below is hugely flawed and is only to
noutram 2:ca251bdda621 19 //illustrate the problem of blocking hardware
noutram 0:397b84c74d17 20 int main() {
noutram 0:397b84c74d17 21
noutram 6:2050203fd22b 22 //Power On Self Test (POST)
noutram 6:2050203fd22b 23 POST();
noutram 2:ca251bdda621 24
noutram 0:397b84c74d17 25 //Now loop forever
noutram 0:397b84c74d17 26 while(1) {
noutram 3:a39db8aa11e8 27
noutram 3:a39db8aa11e8 28 while (sw1 == RELEASED) {};
noutram 3:a39db8aa11e8 29 wait(0.2);
noutram 3:a39db8aa11e8 30 while (sw1 == PRESSED) {};
noutram 3:a39db8aa11e8 31 red_led = !red_led;
noutram 3:a39db8aa11e8 32 wait(0.2);
noutram 2:ca251bdda621 33
noutram 3:a39db8aa11e8 34 while (sw2 == RELEASED) {};
noutram 3:a39db8aa11e8 35 wait(0.2);
noutram 3:a39db8aa11e8 36 while (sw2 == PRESSED) {};
noutram 3:a39db8aa11e8 37 green_led = !green_led;
noutram 3:a39db8aa11e8 38 wait(0.2);
noutram 3:a39db8aa11e8 39
noutram 2:ca251bdda621 40 //Flash the yellow
noutram 2:ca251bdda621 41 yellow_led = !yellow_led;
noutram 2:ca251bdda621 42 wait(0.5);
noutram 0:397b84c74d17 43 };
noutram 0:397b84c74d17 44 }