Hi everyone!
I have a problem with MQXlite lightweight events on KL25z. The algorytm looks like this:
1) Main task creates two additional tasks, initializes events and mutexes, after all- blocks itself
(...)
if(_lwevent_create(&lwevent,0) != MQX_OK){
uart_string("Event create failed\r\n");
_task_block();
}else{
uart_string("Event create OK!\r\n");
}
_mutex_init(&my_mutex, NULL);
_task_block();
_mqx_exit(0);
2) Task1 checks for pressed button and while it's pressed sets event connected to Task2 then unlocks mutex- "if" condition below is in while tasks' loop
if(Button)
{
result = _lwevent_set(&lwevent,K_EVENT);
if(result != MQX_OK)
{
uart_string("Event setting failed\r\n");
_task_block();
}
else
{
counter++;
LedR_ClrVal(0);
}
_mutex_unlock(&my_mutex);
}
else
{
LedR_SetVal(0);
}
3) Task2 shall do something and wait for next button press
while(1) {
counter++;
result_event = _lwevent_wait_ticks(&lwevent,K_EVENT,TRUE,0);
if(result != MQX_OK){
sprintf(uart_buf3, "Czekanie na event nie wyszlo, kod bledu 0x%X", result);
uart_string(uart_buf3);
_task_block();
}
_mutex_try_lock(&my_mutex);
do_sth();
_lwevent_clear(&lwevent,K_EVENT);
_mutex_unlock(&my_mutex);
if(_lwevent_clear(&lwevent,K_EVENT) != MQX_OK){
uart_string("Event clear failed!\r\n");
_task_block();
}
}
Such code structure I took from lwevent tutorial written when CW6.3 was availble but I cannot find it now. What am I doing wrong?
