Sorry for newbie question.
I'll do some questions about the Frank example ( frank_module.c )
1) If the pthread_wait_np() function isn't blocking, and rtf_get()
isn't too, the following
function rtf_put() go on writing in the fifo a lot of time ( the
period is fast );
if that's right it means that before the frank_app read, a lot of
strng "Frank" "Zappa"
are lost.
2) Why after have reading from fifo, my_handler function needs
pthread_wakeup_np() ?
3) The real time thread code ( function thread_code() ) ran the code
between
while(1) of for(;;) loop ( is it correct ? ) . Why some times
pthread_wait_np()
run as the first istruction and some time ad the last
4) The istrutcions between
void *thread_code(void *t)
...
....
while(1).....
runs only one time ?
If it's run only one time what can I do, what kind of
instructions can I put in ?
5) I have to tranfer some data ( 8000 unsigned char ) from a user
process to a RT task.
If I understood right I would use my_handler() function. The
8000 unsigned char
must be send to the parallel port at a determinated period.
How have I to structure the while cicle in the body function
thread_code() ?
Alessandro
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