Stage-1 Students SoCEM
/
Task622Solution-mbedos54
Solution to 6.2.2 updated for mbed os 5.4
main.cpp
- Committer:
- noutram
- Date:
- 2016-03-14
- Revision:
- 8:b28defacd894
- Parent:
- 7:cd015e83995a
- Child:
- 9:c46e831f8e4a
File content as of revision 8:b28defacd894:
#include "mbed.h" #include "rtos.h" #include "string.h" #include <stdio.h> #include <ctype.h> #define SWITCH1_RELEASE 1 void thread1( const void* ); void thread2( const void* ); void switchISR(); //Digital outputs DigitalOut onBoardLED(LED1); DigitalOut redLED(D7); DigitalOut yellowLED(D6); DigitalOut greenLED(D5); //Serial Interface Serial pc(USBTX, USBRX); //Digital inputs DigitalIn onBoardSwitch(USER_BUTTON); InterruptIn sw1(D4); DigitalIn sw2(D3); //Threads Thread *t1; Thread *t2; //Thread ID for the Main function (CMSIS API) osThreadId tidMain; osThreadId tid1; osThreadId tid2; //Called on the falling edge of a switch void switchISR() { t1->signal_set(SWITCH1_RELEASE); //Very short } //High priority thread void thread1( const void* arg ) { redLED = 1; while (true) { Thread::signal_wait(SWITCH1_RELEASE); redLED = !redLED; Thread::wait(1000); redLED = !redLED; Thread::wait(1000); t1->signal_clr(SWITCH1_RELEASE); //Debounce } } //This thread has normal priority void thread2( const void* arg ) { greenLED = 1; while (true) { //Thread::wait(2000); Thread::wait(500); // WAIT FOR 0.5 SECONDS greenLED = !greenLED; } } // Main thread int main() { redLED = 0; yellowLED = 0; greenLED = 0; //Threads t1 = new Thread(&thread1, NULL, osPriorityRealtime); t2 = new Thread(&thread2, NULL, osPriorityNormal); // Thread IDs tidMain = Thread::gettid(); tid1 = t1->gettid(); tid2 = t2->gettid(); //Hook up interrupt sw1.fall(switchISR); pc.printf("Main Thread\n"); while (true) { Thread::wait(osWaitForever); } }