AVR-Chat

The ISR address must be good otherwise it wouldn't go to the service 
routine.
D
----- Original Message ----- 
From: "Mark Jordan" <mark@cpovo.net>
To: <AVR-Chat@yahoogroups.com>
Sent: Sunday, August 21, 2005 10:15 PM
Subject: Re: [AVR-Chat] mega 168


> On 21 Aug 2005 at 21:45, Dennis wrote:
>
>> What I am saying is the next instruction is not being executed. In an
>> interrupt driven system, a loop is waiting for the interrupt. When it
>> happens the process continues from the instruction following the loop. It
>> doesn't go back to the loop, or not supposed to.
>> D
>
> That would happen only if the ISR mess with the Stack.
> Other way the processor stays inside the loop.
>
> I have used loops waiting for some flag that was changed
> inside the ISR.
>
> Mark
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