void service_task
(
uint_32 initial_data
)
{
_task_id second_task_id;
_int_install_unexpected_isr();
/* create lwevent group */
if (_usr_lwevent_create(&lwevent,0) != MQX_OK) {
printf("\nMake event failed");
_task_block();
}
/* Create the ISR task */
second_task_id = _usr_task_create(0, ISR_TASK, 0);
if (second_task_id == MQX_NULL_TASK_ID) {
printf("Could not create simulated_ISR_task \n");
_task_block();
}
while (TRUE) {
if (_lwevent_wait_ticks(&lwevent,1,TRUE,0) != MQX_OK) {
printf("\nEvent Wait failed");
_task_block();
}
if (_lwevent_clear(&lwevent,0x01) != MQX_OK) {
printf("\nEvent Clear failed");
_task_block();
}
printf(" Tick \n");
}
}
/*!
* \brief Used by a task to create an instance of a lightweight event.
*
* \param[in] event_ptr Pointer to the lightweight event to initialize.
* \param[in] flags Creation flag; one of the following:
* \n - LWEVENT_AUTO_CLEAR - all bits in the lightweight event are made autoclearing.
* \n - 0 - lightweight event bits are not set as autoclearing by default.
* \n Note: The autoclearing bits can be changed any time later by calling
* _lwevent_set_auto_clear.
*
* \return MQX_OK
* \return MQX_EINVAL (lwevent is already initialized.)
* \return MQX_LWEVENT_INVALID (In case of user mode, MQX tries to access
* a lwevent with inappropriate access rights.)
*
* \see _lwevent_destroy
* \see _lwevent_set
* \see _lwevent_set_auto_clear
* \see _lwevent_clear
* \see _lwevent_test
* \see _lwevent_wait_for
* \see _lwevent_wait_ticks
* \see _lwevent_wait_until
* \see _lwevent_get_signalled
* \see LWEVENT_STRUCT
*/
_mqx_uint _lwevent_create
(
LWEVENT_STRUCT_PTR event_ptr,
_mqx_uint flags
)
{
#if MQX_ENABLE_USER_MODE && MQX_ENABLE_USER_STDAPI
if (MQX_RUN_IN_USER_MODE)
{
return _usr_lwevent_create(event_ptr, flags);
}
#endif
return _lwevent_create_internal(event_ptr, flags, FALSE);
}
