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Re: [avr-libc-dev] iousbxx6_7.h ? interrupt vectors misnumbered?
From: |
Julian Bleecker |
Subject: |
Re: [avr-libc-dev] iousbxx6_7.h ? interrupt vectors misnumbered? |
Date: |
Sun, 29 Oct 2006 21:51:27 -0800 |
Okay, thanks!
For my education (being a newbie and learning a lot, but not
everything..) — if I set up an interrupt handler that goes by the name
USB_GEN_vect, won't it catch _VECTOR(11) interrupts? In other words,
I'm wondering how the numbering can be off between the avr-libc and
Atmel code? I'm missing the linkage between what the Atmel datsheet
says and what the avr-libc code says. If the interrupt vector numbers
are off, won't the wrong interrupt handlers be catching the wrong
vectors?
Julian
On 10/29/06, Joerg Wunsch <address@hidden> wrote:
As Julian Bleecker wrote:
> I am attempting to port some krufty IAR code to GCC for the
> AT90USB1287.
Pester Atmel about it. They've got GCC code as well.
> Looking further, I think the vectors in iousbxx6_7.h are all off by
> one, ...
The avr-libc and the Atmel numbering are in general off by one. We
start numbering with 0 for the reset vector (though there's no
interrupt vector name for that), while the Atmel datasheet numbers
reset to be 1. Just don't worry about it.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
--
Julian Bleecker, Ph.D.
http://research.techkwondo.com