Re: [avr-chat] I: need help on avr-libv and winavr

[Dave Hylands]

Hi Carlo,

On Thu, Apr 29, 2010 at 11:16 PM, Carlo Ossanna
<address@hidden> wrote:
...snip...
> 7. I need to update the application section (RWW) + (NRWW) excluding the boot 
> loader section
>
>    (this probably means that the interrupt vector table in the boot section 
> must be replicated in the high end part of the application (NRWW section).
>
>    Due to the fact that I can not ch’ange the vector jump table in the boot 
> section I propably have to have an added interrupt ventor jump teable
>
>    In the application NRWW section at a fixed start address, hose jumps 
> change depending on the new addresses of the ISRs in the application section.

Well, you have 2 choices about where the interrupt vector table can
go. Search the datasheet for the IVSEL bit. It allows the ISRs to be
at the beginning  of the bootloader (in case you want an interrupt
driven bootloader), or at the beginnning of the application.

--
Dave Hylands
Shuswap, BC, Canada
http://www.DaveHylands.com/