main.cpp

00001 /******************************************************************************
00002 * DESCRIPTION:
00003 *   A "hello world" CMSIS RTOS program which demonstrates another safe way
00004 *   to pass arguments to threads during thread creation.  In this case,
00005 *   a structure is used to pass multiple arguments.
00006 * AUTHOR: Blaise Barney
00007 * MODIFICATOR: (Simon) CHENG Ye
00008 * LAST REVISED: 06/JAN/2013
00009 ******************************************************************************/
00010 
00011 #include "mbed.h"
00012 #include "cmsis_os.h"
00013 
00014 #define NUM_THREADS 8
00015 
00016 Serial debug(USBTX, USBRX);     // For mbed debug by serial port.
00017 char *messages[NUM_THREADS];
00018 
00019 struct thread_data
00020 {
00021     int thread_id;
00022     int  sum;
00023     char *message;
00024 };
00025 struct thread_data thread_data_array[NUM_THREADS];
00026 
00027 void PrintHello(void const *threadarg)
00028 {
00029     int taskid, sum;
00030     char *hello_msg;
00031     struct thread_data *my_data;
00032     osThreadId id;
00033 
00034     osDelay(1000);
00035     my_data = (struct thread_data *) threadarg;
00036     taskid = my_data->thread_id;
00037     sum = my_data->sum;
00038     hello_msg = my_data->message;
00039     printf("Thread %d: %s  Sum=%d\n", taskid, hello_msg, sum);
00040     id = osThreadGetId();
00041     osThreadTerminate(id);
00042 }
00043 
00044 void t0(void const *argument) {PrintHello(argument);}
00045 osThreadDef(t0, osPriorityNormal, DEFAULT_STACK_SIZE);
00046 
00047 void t1(void const *argument) {PrintHello(argument);}
00048 osThreadDef(t1, osPriorityNormal, DEFAULT_STACK_SIZE);
00049 
00050 void t2(void const *argument) {PrintHello(argument);}
00051 osThreadDef(t2, osPriorityNormal, DEFAULT_STACK_SIZE);
00052 
00053 void t3(void const *argument) {PrintHello(argument);}
00054 osThreadDef(t3, osPriorityNormal, DEFAULT_STACK_SIZE);
00055 
00056 void t4(void const *argument) {PrintHello(argument);}
00057 osThreadDef(t4, osPriorityNormal, DEFAULT_STACK_SIZE);
00058 
00059 void t5(void const *argument) {PrintHello(argument);}
00060 osThreadDef(t5, osPriorityNormal, DEFAULT_STACK_SIZE);
00061 
00062 void t6(void const *argument) {PrintHello(argument);}
00063 osThreadDef(t6, osPriorityNormal, DEFAULT_STACK_SIZE);
00064 
00065 void t7(void const *argument) {PrintHello(argument);}
00066 osThreadDef(t7, osPriorityNormal, DEFAULT_STACK_SIZE);
00067 
00068 int main() 
00069 {
00070     debug.baud(57600);
00071     int t, sum;
00072 
00073     sum=0;
00074     messages[0] = "English: Hello World!";
00075     messages[1] = "French: Bonjour, le monde!";
00076     messages[2] = "Spanish: Hola al mundo";
00077     messages[3] = "Klingon: Nuq neH!";
00078     messages[4] = "German: Guten Tag, Welt!";
00079     messages[5] = "Russian: Zdravstvytye, mir!";
00080     messages[6] = "Japan: Sekai e konnichiwa!";
00081     messages[7] = "Latin: Orbis, te saluto!";
00082 
00083     for(t=0;t<NUM_THREADS;t++) 
00084     {
00085         sum = sum + t;
00086         thread_data_array[t].thread_id = t;
00087         thread_data_array[t].sum = sum;
00088         thread_data_array[t].message = messages[t];
00089         printf("Creating thread %d\n", t);
00090         if(t==0) osThreadCreate(osThread(t0), (void *)&thread_data_array[t]);
00091         if(t==1) osThreadCreate(osThread(t1), (void *)&thread_data_array[t]);
00092         if(t==2) osThreadCreate(osThread(t2), (void *)&thread_data_array[t]);
00093         if(t==3) osThreadCreate(osThread(t3), (void *)&thread_data_array[t]);
00094         if(t==4) osThreadCreate(osThread(t4), (void *)&thread_data_array[t]);
00095         if(t==5) osThreadCreate(osThread(t5), (void *)&thread_data_array[t]);
00096         if(t==6) osThreadCreate(osThread(t6), (void *)&thread_data_array[t]);
00097         if(t==7) osThreadCreate(osThread(t7), (void *)&thread_data_array[t]);
00098     }
00099 }