MZ_timer_example.c

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#include "MZ_sys_cmsis_os2.h"
#include "MZ_timer_example.h"
#include "MZ_timer.h"
#include "MZ_print.h"
#include "MZ_error_handler.h"
 
#define START_AT_INIT               (0)                     
#define START_AT_THREAD             (1)                     
 
#define TIMER_EXAMPLE   START_AT_THREAD
 
#define TIMER_APP_STACK_SIZE            (128)               
 
static mz_thread_t      timer_thread_id = NULL;             
static StaticTask_t     timer_cb_mem;                       
static StackType_t      timer_stack[TIMER_APP_STACK_SIZE];
static mz_semaphore_t   timer_sema_id = NULL;               
static void timer_cb(TimerHandle_t xTimer)
{
    // Unlock the lock when timer expires
    //mz_sem_release(&timer_sema_id);
    mz_puts("Timer expires\r\n");
}
 
static void timer_app(void * arg)
{
    (void)arg;
#if(TIMER_EXAMPLE == START_AT_THREAD)
    // create the timer and start when the starts if main RTOS scheduler started
    if(MZ_OK != mz_tm_create_start_recursive("My timer",
                                            pdMS_TO_TICKS(5000),
                                            timer_cb))
    {
        __NOP(); //No action
    }
    mz_puts("Timer Created and started at Application \r\n");
#endif
 
    while(1)
    {
//      // Wait till the timer is unlocked to re-lock
//      if(SEMA_TIMEOUT != mz_sem_wait(&timer_sema_id,10))
//      {
//          // sample print
//          mz_puts("Timer expires");
//      }
//      else
//      {
//          __NOP();
//      }
    }
 
}
 
/*
 * @fn mz_error_t timer_app_init(void)
 * @brief Initiate the Timer App and creates the thread for timer application
 * @return _ret returns the status of app thread creation(MZ_OK/MZ_FAIL)
 * @note semaphore is created for lock the process when multiple processes are in run status 
 */ 
mz_error_t timer_app_init(void)
{
    mz_error_t _ret = MZ_OK;
 
    // Create the timer application threads
    if(!mz_thread_create(&timer_thread_id,
                            "Timer Scheduler",
                            timer_app,
                            NULL,
                            osPriorityNormal,
                            timer_stack,
                            TIMER_APP_STACK_SIZE,
                            &timer_cb_mem,
                            sizeof(timer_cb_mem)))
    {
        _ret = MZ_THREAD_CREATE_FAIL;
    }
 
    // Create lock with already locked
    if(!mz_sem_create(&timer_sema_id,1U,1U))
    {
        _ret = MZ_SEMA_CREATE_FAIL;
    }
 
#if(TIMER_EXAMPLE == START_AT_INIT)
    if(MZ_OK != mz_tm_create_start_recursive("My timer",
                                            pdMS_TO_TICKS(5000),
                                            timer_cb))
    {
        __NOP();
    }
 
    mz_puts("Timer Created and started at Initialization \r\n");
#endif
    return _ret;
}