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633 solution updated for mbed os 54
Fork of Task633Solution-mbedos54 by
main.cpp
- Committer:
- noutram
- Date:
- 2016-03-14
- Revision:
- 8:c5663f5fa848
- Parent:
- 7:cd015e83995a
- Child:
- 9:31031bbb59c7
File content as of revision 8:c5663f5fa848:
#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); DigitalIn sw1(D4); //CONSIDER CHANGING THIS TO AN INTERRUPT DigitalIn sw2(D3); //Threads Thread *t1; Thread *t2; //Thread ID for the Main function (CMSIS API) osThreadId tidMain; osThreadId tid1; osThreadId tid2; //TBD: Call this on the falling edge of SW1 void switchISR() { //TBD } //High priority thread void thread1( const void* arg ) { redLED = 1; while (true) { // THIS IS BAD BAD BAD BAD BAD BAD // BLOCK ON FALLING EDGE OF SW1 BY RAPID POLLING (SPINNING) // Thread is blocked in the RUNNING state while (sw1 == 0); wait_ms(200); //Wait for debounce while (sw1 == 1); // TODO: FIX THIS! GET THE INTERRUPT TO SIGNAL THIS THREAD redLED = !redLED; Thread::wait(1000); //Thread in WAITING state redLED = !redLED; Thread::wait(1000); //Thread in WAITING state } } // This thread has normal priority // It is supposed to flash the green LED every second. // THIS IS NOT WORKING because it is currently being starved by thread1 (while polling the switch) void thread2( const void* arg ) { greenLED = 1; while (true) { Thread::wait(500); greenLED = !greenLED; } } // Main thread int main() { redLED = 0; yellowLED = 0; greenLED = 0; //Threads t1 = new Thread(&thread1, NULL, osPriorityRealtime); //HIGH PRIORITY t2 = new Thread(&thread2, NULL, osPriorityNormal); // Thread IDs tidMain = Thread::gettid(); tid1 = t1->gettid(); tid2 = t2->gettid(); //TBD: Hook up interrupt pc.printf("Main Thread\n"); while (true) { Thread::wait(osWaitForever); } }