Re: Problem using thread ??

Okay, that confims that you are actually using an interrupt, I was
suspicious.

You should confirm the thread priorities. Especially since you tell us that
you are running at thread priority NORMAL, that is a term from CE 3.0 that
really doesn't apply since then.

Also, is it possible that the low priority thread is doing something causes
a high priority thread in one of your drivers to run? 50 is very high, but
there are 49 priorities higher.

--
Bruce Eitman (eMVP)
Senior Engineer
beitman AT applieddata DOT net

Applied Data Systems
www.applieddata.net
An ISO 9001:2000 Registered Company
Microsoft WEP Gold-level Member

"fred_d" <duchassin@xxxxxxxxx> wrote in message
news:fr8n38$46n$1@xxxxxxxxxxxxxxxxxxxxx
The interrupt is initialized like this:

pTimerReg = MapRegister(TIMER_BASE);
pTimerReg->omcr5 = OMCRX_C | OMCRX_P | OMCRX_S | OMCRX_R |
OMCRX_CRES_1mS;//match control regsiter
pTimerReg->osmr5 = cDureeITPrimaire; // 10 ms
pTimerReg->oier |= OIER_E5; //interrupt enable E4
pTimerReg->oscr5 = 0x0000; //init à 0


// Create an Event to wait on
g_TimerEvent = CreateEvent(NULL, FALSE, FALSE, NULL);

KernelIoControl(IOCTL_HAL_REQUEST_SYSINTR, &TimerIrq, sizeof(DWORD),
&g_Timerintr, sizeof(DWORD), NULL);

// Link our Event with the SYSINTR
test = InterruptInitialize(g_Timerintr, g_TimerEvent, NULL, 0);

ThreadIT = CreateThread(NULL, 0, Interrupt10ms, GlobalHwnd,
CREATE_SUSPENDED, NULL);
CeSetThreadPriority(ThreadIT, 50);
ResumeThread(ThreadIT);//pr démarrer la tache //



And the Boucle in the thread interrupt is like this:

DWORD WINAPI Interrupt10ms (LPVOID pParam)
{

while(1)
{

WaitForSingleObject(g_TimerEvent, /*INFINITE*/10000); //Attente :
Time_Out:1sec


if((pTimerReg->ossr & OSSR_M5) == OSSR_M5) //verifie que l'it provienne
bien du bon timer
{
pTimerReg->ossr |= OSSR_M5;

TraiteIT10ms();//-->traitement IT

InterruptDone(g_Timerintr);
}

if(QuitThread) break;

}

ExitThread(WM_QUIT);

return 0;


}

The source of the interrupt is a timer interrupt. I use OS5 timer to
generate an interrupt.

Thanks to help me.

Fred



"Bruce Eitman [eMVP]" <beitman.nospam@xxxxxxxxxxxxxxxxxxxxxx> a écrit dans
le message de news: %23wwaCpEhIHA.5900@xxxxxxxxxxxxxxxxxxxxxxx
How do you define interrupt? What is the source of the interrupt?

--
Bruce Eitman (eMVP)
Senior Engineer
beitman AT applieddata DOT net

Applied Data Systems
www.applieddata.net
An ISO 9001:2000 Registered Company
Microsoft WEP Gold-level Member

"fred_d" <duchassin@xxxxxxxxx> wrote in message
news:fr8jil$2n3$1@xxxxxxxxxxxxxxxxxxxxx
Hello everybody,

I'm asking for help because i have problem with thread programming!

My application is runing under windows Ce 5. I use evc++ to make my
application.

In fact, my program is composed of 2 threads:
- One main thread which is the core of my application. Everythingh is
done in this thread. --> MAIN thread with priority NORMAL
-A thread which occurs every 10 ms. Every 10 ms, a timer interrupt
occurs and I control if a key is pressed. (if a key is pressed, i only
validate a flag and in the main thread, i do the action desired by this
flag). --> INTERRUPT thread with priority : 50 (high priority).

So you understand that the thread INTERRUPT wich occurs every 10 ms is
very important.

My problem is the following:
If in the main thread i have a boucle (a do...while for example) which
used a lot of CPU time (this thread has a normal priority).
At this time, I never go to the thread INTERRUPT whereas this thread has
a high priority !!! (sometimes i go in this thread 10 or 20 seconds
later !!!)

I don't knwo why !! I just would like to have a periodic interrupt...


Thanks to help me please.

Fred







.