[Tinyos Core WG] Boot Order

[David Moss]

I understand the TEP, but if a driver is implemented with interrupts, it
would require modification to the driver or a custom driver to make it work
before the interrupts are enabled.  

It would be easier not to think about it by having the option to access
higher or lower priority Boot interfaces.  

It also sounds like other people have experienced this limitation and fixed
it with custom solutions.  

-David



-----Original Message-----
From: Philip Levis [mailto:pal at cs.stanford.edu] 
Sent: Thursday, May 22, 2008 12:41 AM
To: David Moss
Cc: 'TinyOS Core WG'
Subject: Re: [Tinyos Core WG] Boot Order


On May 21, 2008, at 4:12 PM, David Moss wrote:
> Interrupts aren't enabled during any Init, correct?  Can we be sure  
> that
> non-volatile memory drivers do not employ interrupts?

The boot TEP goes into this; it's rare that interrupts don't have  
flags, on which you can just spin. Disabling interrupts doesn't mean  
they can't trigger, merely they don't cause a jump to the interrupt  
vector.

Phil