// MQX timer task structure
typedef struct
{
// Timer Task id
_mqx_uint u32TimerTaskId;
// MQX tiemr structure instance for getting starting time in ticks
ETH_TIMER_STRUCT stTickTimeStart;
//
// // MQX tiemr structure instance for getting the waiting time
ETH_TIMER_STRUCT stTickTimeWait;
} stBRK_NW_ETH_TIMER_T;
volatile UINT16_T u16EthTimerTicks = ONE;
//This is the function which I want to call after every 50 msec.
static void fnBrkNwEthTimeTickIncrement( _timer_id, pointer, MQX_TICK_STRUCT_PTR)
{
// Increment time ticks for every 1 msec
u16EthTimerTicks++;
}
//Initialization function for MQX timer is as follows.
void fnBrkNwEthTimerInit(void)
{
// MQX timer return status
_mqx_uint u32EthTimerStatus;
// MQX timer task ID
_mqx_uint u32EthTimerTaskId;
// Creates the timer component
u32EthTimerStatus = _timer_create_component(ETH_TIMER_TASK_PRIORITY, ETH_TIMER_STACK_SIZE);
// Check for timer create component status
if(u32EthTimerStatus == MQX_OK)
{
// Initialize wait time structure
_time_init_ticks(&stBrkNwEthTimer.stTickTimeWait, ZERO);
// Get the elapsed time
_time_get_elapsed_ticks(&stBrkNwEthTimer.stTickTimeStart);
// Add time in milli second units to tick time
_time_add_msec_to_ticks(&stBrkNwEthTimer.stTickTimeWait, 50);
// Start MQX periodic timer with 1 msec of Time period
u32EthTimerTaskId = _timer_start_periodic_at_ticks(fnBrkNwEthTimeTickIncrement,
NULL,
TIMER_ELAPSED_TIME_MODE,
&stBrkNwEthTimer.stTickTimeStart,
&stBrkNwEthTimer.stTickTimeWait
);
// Copy MQX timer task ID
stBrkNwEthTimer.u32TimerTaskId = u32EthTimerTaskId;
// Check whether periodic has been properly started
if(u32EthTimerTaskId != TIMER_NULL_ID)
{
// Log critical error: Timer hasn't been started properly.
}
else
{
// Do Nothing
}
}
}
else
{
// Log critical error: Timer hasn't been initialized properly.
}
}
