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[avr-gcc-list] Re: How to determine which interrupt fired?

From: Volkmar Dierkes
Subject: [avr-gcc-list] Re: How to determine which interrupt fired?
Date: Mon, 13 Feb 2006 07:43:50 +0100
User-agent: 40tude_Dialog/ Hamster/

Hi Rick,

On Sat, 11 Feb 2006 19:44:14 -0800, Rick Mann wrote:

> I have a simple app that only defines the UART0 receive interrupt  
> handler for an ATmega128. I can set that it's getting called in gdb  
> (and because its code is executing), but then something happens and  
> my code jumps to the top of main. I'm assuming some other interrupt/ 
> reset is occurring, but I can't figure out what it is.
> Any suggestions on how I can determine this? Thanks!

Did you check that the Mega103-Compatibility-Fuse has the correct
setting? The default value is Yes, but the compatibility mode should
be off if your program is compiled for the ATMega128.


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