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RE: [lwip-users] Interrupt missing while calling sendto()


From: Goldschmidt Simon
Subject: RE: [lwip-users] Interrupt missing while calling sendto()
Date: Wed, 27 Jun 2007 09:33:05 +0200

 
> # My PDMA interrupt is affecting (missing) if i am using 
> sendto() in my project # Here PDMA is used to capture data from Camera
> 
> But, one more things is, if iam using recvfrom() it is not so!
> 
> Is there is any special or complexity wise major difference 
> between sendto() and recvfrom()?
>  
> Can anyone give more light on this?

I don't know your hardware or the port you use to run lwIP on that,
but sendto includes a task-switch to the lwip core thread, while
recvfrom
only waits for a message in a mailbox, so your interrupt-problem might
come from those task-switches...


Simon




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