I think you are mistaken.
The normal (default) operation of all port lines are as regular I/O, unless
you configure the relevant timer control registers to toggle the port lines
on compare.
The default values cause the port lines to be as normal I/O.
 On Nov 17, 2012 3:39 PM, "Marcelino Macome" <marcelino.macom...@gmail.com>
wrote:

> Hi guys I am emailing you to request an help. I am a beginner on c
> programming, I have built a circuit to control a stepper motor, with
> atmega8535. I have realized that the wiring was not according to the
> architecture of the MCU. That is I have dedicated pin19 which is PD5, to
> send the instruction to move CW/CCW. But this pin19 function as an OC1A on
> normal operation. My question is how do I disable this normal function to
> what I need now?
> I thank you in advance.
> Marcelino
>
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