jason ji / Mbed OS mbed-os-example-blinky

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Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

main.cpp@14:c4162b826d08, 2016-10-20 (annotated)

Committer:
jasonjee
Date:
Thu Oct 20 14:08:21 2016 +0000
Revision:
14:c4162b826d08
Parent:
8:bb09890333fe 
this is a ping-pang blinky.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 0:2757d7abb7d9 1 #include "mbed.h"
Jonathan Austin 0:2757d7abb7d9 2
Jonathan Austin 0:2757d7abb7d9 3 DigitalOut led1(LED1);
jasonjee 14:c4162b826d08 4 DigitalOut led2(LED2);
jasonjee 14:c4162b826d08 5 DigitalOut led3(LED3);
jasonjee 14:c4162b826d08 6 DigitalOut led4(LED4);
Jonathan Austin 0:2757d7abb7d9 7
Jonathan Austin 1:846c97078558 8 // main() runs in its own thread in the OS
Jonathan Austin 1:846c97078558 9 // (note the calls to Thread::wait below for delays)
Jonathan Austin 0:2757d7abb7d9 10 int main() {
jasonjee 14:c4162b826d08 11 char a=1,b;
Jonathan Austin 0:2757d7abb7d9 12 while (true) {
jasonjee 14:c4162b826d08 13 led1 = !(a^1);
jasonjee 14:c4162b826d08 14 led2 = !(a^2);
jasonjee 14:c4162b826d08 15 led3 = !(a^4);
jasonjee 14:c4162b826d08 16 led4 = !(a^8);
jasonjee 14:c4162b826d08 17 if (led1) b=1;
jasonjee 14:c4162b826d08 18 if (led4) b=0;
jasonjee 14:c4162b826d08 19 if (b) a=a<<1;
jasonjee 14:c4162b826d08 20 else a=a>>1;
Jonathan Austin 0:2757d7abb7d9 21 Thread::wait(500);
Jonathan Austin 0:2757d7abb7d9 22 }
Jonathan Austin 0:2757d7abb7d9 23 }
Jonathan Austin 1:846c97078558 24