William Marsh / Mbed OS thread-example2

Thread example using mbed 5.7

main.cpp@2:b13b343de0f5, 2020-01-23 (annotated)

Committer:
WilliamMarshQMUL
Date:
Thu Jan 23 13:05:26 2020 +0000
Revision:
2:b13b343de0f5
Parent:
1:bbbe0fae16f3 
Change wait (depreciated) to sleep_for

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WilliamMarshQMUL 2:b13b343de0f5 1 // Simple Example of use of Threads on mbed OS 5
WilliamMarshQMUL 2:b13b343de0f5 2 // Depreciated use of wait replaced by 'sleep_for'
WilliamMarshQMUL 0:83abbbeb9a3d 3
WilliamMarshQMUL 0:83abbbeb9a3d 4 #include "mbed.h"
WilliamMarshQMUL 0:83abbbeb9a3d 5
WilliamMarshQMUL 0:83abbbeb9a3d 6 // Variable for a second thread
WilliamMarshQMUL 0:83abbbeb9a3d 7 Thread thread;
WilliamMarshQMUL 0:83abbbeb9a3d 8
WilliamMarshQMUL 0:83abbbeb9a3d 9 DigitalOut ledA(LED1); // Red LED
WilliamMarshQMUL 0:83abbbeb9a3d 10 DigitalOut ledB(LED2); // Green LED
WilliamMarshQMUL 0:83abbbeb9a3d 11
WilliamMarshQMUL 0:83abbbeb9a3d 12 // This method is run in the second thread
WilliamMarshQMUL 0:83abbbeb9a3d 13 void ledB_thread() {
WilliamMarshQMUL 0:83abbbeb9a3d 14 while (true) {
WilliamMarshQMUL 2:b13b343de0f5 15 //wait(0.25); -- depreciated call
WilliamMarshQMUL 2:b13b343de0f5 16 ThisThread::sleep_for(250) ;
WilliamMarshQMUL 0:83abbbeb9a3d 17 ledB = !ledB;
WilliamMarshQMUL 0:83abbbeb9a3d 18 }
WilliamMarshQMUL 0:83abbbeb9a3d 19 }
WilliamMarshQMUL 0:83abbbeb9a3d 20
WilliamMarshQMUL 0:83abbbeb9a3d 21 // This is the main thread
WilliamMarshQMUL 0:83abbbeb9a3d 22 int main (void) {
WilliamMarshQMUL 0:83abbbeb9a3d 23 ledA = 1 ; // off
WilliamMarshQMUL 0:83abbbeb9a3d 24 ledB = 1 ; // off
WilliamMarshQMUL 0:83abbbeb9a3d 25
WilliamMarshQMUL 0:83abbbeb9a3d 26 // start the second thread
WilliamMarshQMUL 0:83abbbeb9a3d 27 thread.start(callback(ledB_thread));
WilliamMarshQMUL 0:83abbbeb9a3d 28
WilliamMarshQMUL 0:83abbbeb9a3d 29 while (true) {
WilliamMarshQMUL 2:b13b343de0f5 30 // wait(0.4); - depreciated call
WilliamMarshQMUL 2:b13b343de0f5 31 ThisThread::sleep_for(400) ;
WilliamMarshQMUL 0:83abbbeb9a3d 32 ledA = !ledA;
WilliamMarshQMUL 0:83abbbeb9a3d 33 }
WilliamMarshQMUL 0:83abbbeb9a3d 34 }