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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 AVRADCSetup(prescaler,adc_ref)
+// Function to initialise ADC of AVR
+//
+// Calling Sequence
+//     AVRADCSetup(uint8 prescaler, uint8 adc_ref)
+//
+// Parameters
+//     prescaler: prescaler to be used for generating ADC clock (0-7)
+//     adc_ref	: reference voltage to be used for ADC conversion
+//              0 -> Voltage on VREF pin
+//              1 -> Voltage on AVCC pin
+//              2 -> Internal 2.56 reference voltage       
+//
+// Description
+//     This function initialises ADc of AVR with given parameters. 'prescaler' is 
+//     needed for deciding ADC clock. ADC clock should be between 50KHz and 200KHz
+//     and it given as (MCU clock/2^prescaler). Select appropriate prescaler depending
+//     on MCU clock. 'adc_ref' selects one of the available reference voltage sources
+//     available
+// Examples
+//     AVRADCSetup(128,0)
+// See also
+//     AVRReadADC
+//
+// Authors
+//     Siddhesh Wani Ashish Kamble
+//
+// This is curretly dummy function. It provides no functionality but is required 
+// for providing support for generating C code for AVR.
+
+if(prescaler>=8)
+disp("Error : Invalid input argument ''prescaler'' in AVRADCSetup function.");
+end
+if(adc_ref>=3) then 
+disp("Error : Invalid input argument ''adc_ref'' in AVRADCSetup function.");
+end
+endfunction