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// Copyright (C) 2017 - IIT Bombay - FOSSEE
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
// Organization: FOSSEE, IIT Bombay
// Email: toolbox@scilab.in
function AVRPWM0Setup(waveform_mode,output_mode)
//Function to Setup OC0 pin for required PWM mode
//
//Parameters
// waveform_mode: integer, from 0 to 2
// output_mode: integer, from 0 to 1 (or 2) depending on the waveform_mode
//
//Description
// Every Micro controller has PWM pins which can generate varying voltages
// from 0V-5V.This function helps to use OC0 pin to produce required
// output waveform by setting the waveform mode and otput mode.
//
// waveform_mode can take values-
// <itemizedlist>
// <listitem><para>0 -> for Phase correct PWM Mode</para></listitem>
// <listitem><para>1 -> for Fast PWM Mode</para></listitem>
// <listitem><para>2 -> for CTC Mode</para></listitem>
// </itemizedlist>
//
// output_mode can take values-
// <itemizedlist>
// For Phase correct PWM Mode:
// <listitem><para>0 for Clear OC0 on compare match when up-counting. Set OC0 on compare match when down-counting.</para></listitem>
// <listitem><para>1 for Set OC0 on compare match when up-counting. Clear OC0 on compare match when down-counting.</para></listitem>
// For Fast PWM Mode:
// <listitem><para>0 for non-inverted output i.e Clear OC0 on compare match, set OC0 at BOTTOM.</para></listitem>
// <listitem><para>1 for inverted output i.e Set OC0 on compare match, clear OC0 at BOTTOM.</para></listitem>
// For CTC Mode:
// <listitem><para>0 to Clear OC0 on compare match</para></listitem>
// <listitem><para>1 to Set OC0 on compare match</para></listitem>
// <listitem><para>2 to toggle OC0 on compare match</para></listitem>
// </itemizedlist>
//
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for AVR.
//
//Examples
// AVRPWM0Setup(2,0); //This function will select CTC waveform mode and will clear OC0 on compare match
//See also
// AVRPWM0SetDuty
//
//Authors
// Ashish Kamble
//
if(waveform_mode>=3) then
disp("Error : Invalid input argument ''waveform_mode'' in AVRPWM0Setup function.");
end
if((waveform_mode==0)|(waveform_mode==1)) then
if(output_mode>=2) then
disp("Error : Invalid input argument ''output_mode'' in AVRPWM0Setup function.");
end
end
if(waveform_mode==2) then
if(output_mode>=3) then
disp("Error : Invalid input argument ''output_mode'' in AVRPWM0Setup function.");
end
end
endfunction
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