Re: [avr-gcc-list] uco-ii ISR routine

[Anich Gregor]

Hi!

You can set the global interrupt flag with the sei instruction or by using 
reti from an ISR.
reti is the same as ret but also re-enables the global interrupt flag "I"

Hope this helps,
  blight

On Sunday 07 March 2004 11:06, Ewout Boks wrote:
> Hi all,
>
> I am using Julius Luukko's ISR routines for ucos-ii with avr-gcc.
>
> I noticed that at the end of the ISR, the ret is used as opposed to the
> reti instruction. The same thing goes for the OSTickISR routine.
>
>
> My ISR work fine but I haven't been able to figure out how interrupts
> are re-enabled after the ISR is executed. The I bit is cleared when an
> interrupt is done so how does this work ?
>
>
> Greetings,
>
> Ewout
>
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