Re: [avr-gcc-list] Handling High Speed Interrupts

[Janos Sztriko]

Hi,

You need to use the "naked" interrupt attribute. See this links:

http://www.avr1.org/pipermail/avr-gcc-list/2002-February/001449.html
http://gcc.gnu.org/onlinedocs/gcc-3.2/gcc/Function-Attributes.html

I hope this helps.

Janos

Ramkumar Rengaswamy wrote:

> Hi,
>    I have an application that needs to generate a Timer Output Compare
> Interrput every 10 uS. I have an ATMega128L clocked at 7.329 MHz. This
> means that I have 74 clock cycles to handle the interrupt routine and
> currently most of the clock cycles are wasted in pushing and popping
> things off the stack. Is there anyway in avr-gcc to avoid all this
> overhead and utilize all the cycles for my processing only ?
>
> Thanks,
> -Ram