2008-11-10 10:24:18     BF533: Timer 0-1-2 are free?

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2008-11-10 10:24:18     BF533: Timer 0-1-2 are free?

Aldric Molina (SWITZERLAND)

Message: 64944   

 

Hi everybody,

 

for an industrial project I need to use the three timer on the uclinux for blackfin. I want to know if they are available?

 

Best Regards

 

Aldric Molina

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2008-11-10 10:47:54     Re: BF533: Timer 0-1-2 are free?

Mike Frysinger (UNITED STATES)

Message: 64948   

 

no peripheral is used unless you use it.  so if you do not enable any driver that would use any gptimers, then they will all be free.

 

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2008-11-10 11:03:53     Re: BF533: Timer 0-1-2 are free?

Aldric Molina (SWITZERLAND)

Message: 64950   

 

Ok, thanks for the fast answer.

 

Now I have a little problem, I have to start all the timer in the NMI handler in asm. I can configure the timer in asm but I don t know how to attach an handler to the timer's interrupt?

 

 

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2008-11-10 11:09:51     Re: BF533: Timer 0-1-2 are free?

Mike Frysinger (UNITED STATES)

Message: 64951   

 

NMI is not supported:

http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:nmi

 

to manage interrupts:

http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:interrupts

 

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2008-11-10 11:19:13     Re: BF533: Timer 0-1-2 are free?

Aldric Molina (SWITZERLAND)

Message: 64952   

 

I know but I have implement an NMI (this party is ok) and on it I have to start the timer. My question is: can I make module like the exemple on the linux-kernel:timers[timer_test.c] and start in asm the timer?

 

 

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2008-11-10 11:28:32     Re: BF533: Timer 0-1-2 are free?

Mike Frysinger (UNITED STATES)

Message: 64953   

 

calling things from asm is simple.  calling things from NMI is not, nor is any of it supported.  you'd have to audit the whole code path.

 

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2008-11-10 11:39:52     Re: BF533: Timer 0-1-2 are free?

Aldric Molina (SWITZERLAND)

Message: 64955   

 

Fine, thanks for your answer Mike.

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