main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "string.h"
00004 #include <stdio.h>
00005 #include <ctype.h>
00006 
00007 #define DELAY 200
00008 
00009 //Digital outputs
00010 DigitalOut onBoardLED(LED1);
00011 DigitalOut redLED(D7);
00012 DigitalOut yellowLED(D6);
00013 DigitalOut greenLED(D5);
00014 
00015 //Serial Interface
00016 Serial pc(USBTX, USBRX);
00017 
00018 //Digital inputs
00019 DigitalIn  onBoardSwitch(USER_BUTTON);
00020 DigitalIn  SW1(D4);
00021 DigitalIn  SW2(D3);
00022 
00023 //Thread ID for the Main function (CMSIS API)
00024 osThreadId tidMain;
00025 
00026 void thread1() 
00027 {
00028     pc.printf("Entering thread 1\n");
00029     while (true) {
00030         yellowLED = 1;
00031         Thread::wait(DELAY);   
00032         yellowLED = 0;
00033         Thread::wait(DELAY);               
00034     }
00035 }
00036 
00037 //This thread has higher priority
00038 void thread2() 
00039 {
00040     pc.printf("Entering thread 2\n");  
00041     while (true) {
00042         redLED = 1;
00043         if (SW1 == 1) {
00044             
00045             // 1) Select the 'type' of wait
00046             
00047             //wait_ms(osWaitForever);
00048             Thread::wait(osWaitForever); 
00049         } else {
00050             Thread::wait(DELAY);    
00051         }
00052         redLED = 0;
00053         Thread::wait(DELAY);               
00054     }
00055 }
00056 
00057 
00058 //Main thread
00059 int main() {
00060     redLED    = 0;
00061     yellowLED = 0;
00062     greenLED  = 0;
00063                 
00064     //Main thread ID
00065     tidMain = Thread::gettid();  
00066     
00067     Thread t1(osPriorityNormal);
00068     t1.start(thread1);
00069     
00070     // 2) Select the Thread Priority
00071     
00072     //Thread t2(thread2, NULL, osPriorityNormal);
00073     Thread t2(osPriorityAboveNormal);
00074     t2.start(thread2);
00075     
00076     pc.printf("Main Thread\n");
00077     while (true) {
00078         Thread::wait(osWaitForever);
00079     }
00080 
00081 }
00082 
00083