Re: [avr-gcc-list] interrupts

[Jamie Morken]

Hi,

----- Original Message -----
From: "E. Weddington" <address@hidden>
Date: Thursday, March 17, 2005 2:13 pm
Subject: Re: [avr-gcc-list] interrupts


> It depends on how you have your ISRs defined. Are you using 
> SIGNAL() or 
> INTERRUPT()?

I an using SIGNAL() up until now

The explanation for SIGNAL() in the avr-libc manual is a bit light, it makes it 
sound like you don't need to enable sei(); to run SIGNALS:

SIGNAL()
"Introduces an interrupt handler function that runs with global interrupts 
initially disabled."

INTERRUPT()
"Introduces an interrupt handler function that runs with global interrupts 
initially enabled. This allows interrupt handlers to be interrupted."
--so you can interrupt an interrupt with this one?

So if I declare one ISR as INTERRUPT and the rest as SIGNAL, then the INTERRUPT 
can be interrupted by the SIGNAL's? :)  wow..

cheers,
Jamie