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Re: [avr-gcc-list] newbie interrupts question

From: Lars Noschinski
Subject: Re: [avr-gcc-list] newbie interrupts question
Date: Mon, 8 May 2006 08:03:56 +0200
User-agent: mutt-ng/devel-r790 (Linux)

* Eric Smith <address@hidden> [2006-05-08 07:58]:
My question is this:  how do I set up this interrupt vector table using C?
Or, if I have to mix assembly with C to do it, that's fine -- but can you
tell me (show me) explicitely how to do it?

You just declare your interrupt handlers using for example


The vector table is automatically setup

I have to be able to set up the interrupt vectors such that when my timer
reaches zero, and the interrupt is generated, the appropriate routine is
called.  Also, I'm assuming that if I enable interrupts I'll need vectors
for all available interrupts even if I'm only going to use one, is that

You need an handler for every enabled interrupt. But setting the global
interrupt enable bit does only enable interrupt handling, the specific
interrupts need to be enabled seperatly.

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