Hi,
Ive got a problem using periodic tasks, or timers in generally.
First of all the relevant piece of source:
-----------------------------------------------------------------------------------------------------
#define SLEEP_TIME 100000000
...
static void xmit(void* user_data){
int err = 0;
unsigned long timeout;
err = rt_task_set_periodic(NULL, TM_NOW, SLEEP_TIME);
if(err < 0){
fprintf(stderr, "Error: Cannot set rt task 'xmit' periodic!
errcode=%d\n", err);
return;
}
err = rt_task_wait_period(&timeout);
if(err < 0)
fprintf(stderr, "Warning: Cannot wait for task period!
errcode=%d timeout=%ld\n", err, timeout);
}
...
int main(){
int err = 0;
mlockall(MCL_CURRENT | MCL_FUTURE);
signal(SIGINT, cleanup);
err = rt_timer_set_mode(TM_ONESHOT);
if(err < 0){
fprintf(stderr, "Error: Cannot set rt timer mode to TM_ONESHOT!
errcode=%d\n", err);
return 1;
}
err = rt_task_spawn(&xmit_task, xmit_task_name, 0, XMIT_TASK_PRIO,
T_FPU, xmit, NULL);
...
}
-------------------------------------------------------------------------------------------------------------
The task did not wait for the period to which it is set.
I get always an ETIMEDOUT error, and a timer overrun of 16 times when I
try to call rt_task_wait_period...
Also another problem is, everytime I try to call rt_task_sleep or the
standard linux library functions pause,sleep or usleep,
my system does not react on inputs anymore and I have to restart the
machine...
Can anyone tell me whats going on there?
If you need additional informations, please let me know :)
Thanks in advance,
Steve
_______________________________________________
Xenomai-help mailing list
[email protected]
https://mail.gna.org/listinfo/xenomai-help
