View CPU usage in ucos

First set: # define OS _TASK_STAT_EN 1
A statistical task is created in OSInit ();.

#if OS_TASK_STAT_EN > 0void  OS_TaskStat (void *p_arg){    INT32U     run;    INT32U     max;    INT8S      usage;#if OS_CRITICAL_METHOD == 3                      /* Allocate storage for CPU status register           */    OS_CPU_SR  cpu_sr = 0;#endif      p_arg = p_arg;                               /* Prevent compiler warning for not using 'parg'      */    while (OSStatRdy == OS_FALSE) {        OSTimeDly(2 * OS_TICKS_PER_SEC / 10);    /* Wait until statistic task is ready                 */    }    max = OSIdleCtrMax / 100L;    for (;;) {        OS_ENTER_CRITICAL();        OSIdleCtrRun = OSIdleCtr;                /* Obtain the of the idle counter for the past second */        run          = OSIdleCtr;        OSIdleCtr    = 0L;                       /* Reset the idle counter for the next second         */        OS_EXIT_CRITICAL();        if (max > 0L) {            usage = (INT8S)(100L - run / max);            if (usage >= 0) {                    /* Make sure we don't have a negative percentage      */                OSCPUUsage = usage;            } else {                OSCPUUsage = 0;            }        } else {            OSCPUUsage = 0;            max        = OSIdleCtrMax / 100L;        }        OSTaskStatHook();                        /* Invoke user definable hook                         */#if (OS_TASK_STAT_STK_CHK_EN > 0) && (OS_TASK_CREATE_EXT_EN > 0)        OS_TaskStatStkChk();                     /* Check the stacks for each task                     */#endif        OSTimeDly(OS_TICKS_PER_SEC / 10);        /* Accumulate OSIdleCtr for the next 1/10 second      */    }}#endif

View CPU usage in ucos

Now you can output the relevant information in your task:

printf("\r\n\r\n Micrium uC/OS-II  \r\n");    printf(" ST STM32 (Cortex-M3)\r\n\r\n");    printf(" uC/OS-II: V%ld.%ld%ld\r\n",OSVersion()/100,(OSVersion() % 100) /   10,(OSVersion() % 10));    printf(" TickRate: %ld  \r\n",OS_TICKS_PER_SEC);    printf(" CPU Usage: %ld%    \r\n",OSCPUUsage);    printf(" CPU Speed: %ld MHz  \r\n",BSP_CPU_ClkFreq() / 1000000L);    printf(" #Ticks: %ld  \r\n",OSTime);    printf(" #CtxSw: %ld  \r\n",OSCtxSwCtr);

In sequence: version number, CPU usage, clock speed, task switching times, and so on!