Re: [avr-chat] iom128.h vector table mismatch

[Ned Konz]

On Feb 5, 2006, at 7:05 PM, Aly El-Osery wrote:

> The vector table in avr/iom128.h seems to be different from what is  
> listed on page 57 of the atmega128L data sheet
>
> http://www.atmel.com/dyn/resources/prod_documents/doc2467.pdf
>
> For example
>
> In iom128.h
>
> #define SIG_INPUT_CAPTURE3      _VECTOR(25)
>
> while in the data sheet input capture 3 is vector number 26 not 25.
>
> In know I am probably missing something but I can't figure it out.  
> Please help.
>
> Thanks

The numbering in the datasheet is 1-relative; the vector numbering in  
avr-libc is 0-relative. Hence the "off by 1" you're seeing.

That is, vector 0 is reset, but shows up as vector 1 in the datasheet.
--
Ned Konz
address@hidden