main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 
00004 DigitalOut led(LED1);
00005 
00006 void led_thread(void const *argument) {
00007   while (true) {
00008     // Signal flags that are reported as event are automatically cleared.
00009     osEvent evt = Thread::signal_wait(0);            //Wait for any signal
00010     switch(evt.status) {
00011       case osOK:
00012         printf("osOK\n");                            //no error or event occurred
00013         break;
00014       case osEventSignal:
00015         printf("osEventSignal = %#05x\n",evt.value.signals); //signal event occurred
00016         break;              
00017       case osEventTimeout:
00018         printf("osEventTimeout\n");                 //timeout occurred
00019         break;               
00020       case osErrorValue:
00021         printf("osErrorValue\n");                   //value of a parameter is out of range
00022         break;               
00023       default:
00024         printf("Unknown error flag: %#08x\n",(uint32_t)evt.status);
00025         break;
00026     };
00027     led = !led;
00028   }
00029 }
00030 
00031 int main (void) {
00032   int32_t signal_mask = 0x1;
00033   Thread thread2(led_thread);
00034   while (true) {
00035     Thread::wait(1000);
00036     thread2.signal_set(signal_mask);
00037     signal_mask <<=1;
00038     if(signal_mask > 0x8000) signal_mask=0x1;
00039   }
00040 }