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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 AVRTimerSetup(timer,prescaler,clock_source)
//Function to setup Timers in ATmega16
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//
//Parameters:
// timer : integer, from 0 to 2
// prescaler : integer.
// clock_source : integer, 0 (for internal) or 1 (for external)
//
=======
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//Descrpition:
// This function tells the micro controller which clock source you will be using.
// The timer value and prescaler value passed in this function setup the timer as per
// your requirement.
//
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// timer can take values-
// <itemizedlist>
// <listitem><para>0 -> for timer0</para></listitem>
// <listitem><para>1 -> for timer1</para></listitem>
// <listitem><para>2 -> for timer2</para></listitem>
// </itemizedlist>
//
// prescaler can take values-
// <itemizedlist>
// <listitem><para>1 for no prescaling i.e clock will run at max 16Hz frequency</para></listitem>
// <listitem><para>8 for prescaling clock by 8 i.e new clock frequency will be (clk/8)</para></listitem>
// <listitem><para>64 for prescaling clock by 64 i.e new clock frequency will be (clk/64)</para></listitem>
// <listitem><para>256 for prescaling clock by 256 i.e new clock frequency will be (clk/256)</para></listitem>
// <listitem><para>1024 for prescaling clock by 1024 i.e new clock frequency will be (clk/1024)</para></listitem>
// </itemizedlist>
//
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for AVR.
//
//Example
// AVRTimerSetup(0,64,0); //This function will select timer0 with timer running as per internal clock source and prescaled by 64.
=======
//Parameters:
// timer : It is an integer value.
// 0 to setup timer0
// 1 to setup timer1
// 2 to setup timer2
// prescaler : It is an integer value.
// 1 for no prescaling i.e clock will run at max 16Hz frequency
// 8 for prescaling clock by 8 i.e new clock frequency will be (clk/8)
// 64 for prescaling clock by 64 i.e new clock frequency will be (clk/64)
// 256 for prescaling clock by 256 i.e new clock frequency will be (clk/256)
// 1024 for prescaling clock by 1024 i.e new clock frequency will be (clk/1024)
// clock_source : It is an integer value.
// 0 if you are using internal clock source
// 1 if you are using external clock source
//Example
// AVRTimerSetup(0,64,0); //This function will select timer0 with timer running as per
// internal clock source and prescaled by 64.
//
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//See also
// AVRGetTimerValues
//
//Authors
// Ashish Kamble
//
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=======
//This is curretly dummy function. It provides no functionality but is required
//for providing support for generating C code for AVR.
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if(timer>=3) then
disp("Error : Invalid input argument ''timer'' in AVRTimerSetup function.");
end
if(~((prescaler==1)|(prescaler==8)|(prescaler==64)|(prescaler==256)|(prescaler==1024))) then
disp("Error : Invalid input argument ''prescaler'' in AVRTimerSetup function.");
end
if(clock_source>=2) then
disp("Error : Invalid input argument ''clock_source'' in AVRTimerSetup function.");
end
endfunction
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