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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 AVRPWM1SetDuty(output_pin,duty,Top_Value)
+//Function to Set Duty cycle of PWM Output generated by Timer1 at OC1A or OC1B pin.    
+//Parameters
+//      ouput_pin: 
+//                   0 for selecting OC1A as output pin 
+//                   1 for selecting OC1B as output pin
+//
+//      duty:        It holds an integer value from 0 to 100 which sets the percentage
+//                   of time for which signal is active.
+//
+//      Top_Value:   It holds an integer value from 0 to 65535.This value sets the Top 
+//                   value of the counter TCNT1 i.e ICR.(for more info refer datasheet)
+//
+//Description
+//      Each Micro controller has PWM output pins which can generate varying voltage
+//      from 0V-5V.This function Sets the duty cycle of output PWM signal.Also this function 
+//      decides the Top Vale of TCNT1 and the output pin to output PWM signal.
+//
+//Example
+//      AVRPWM1SetDuty(0,50,40000); //This function will produce PWM signal of 50% duty
+//                                    cycle on OC1A pin and TCNT1 will reset at 40000 instead 
+//                                    at 65535.
+//      
+//See also
+//     AVRPWM1Setup
+//
+//Authors
+//     Ashish Kamble
+//
+// This is curretly dummy function. It provides no functionality but is required 
+// for providing support for generating C code for AVR.
+
+if(output_pin>=2) then
+disp("Error : Invalid input argument ''output_pin'' in AVRPWM1SetDuty function.");
+end
+if(duty>100) then 
+disp("Error : Invalid input argument ''duty'' in AVRPWM1SetDuty function.");
+end
+if(Top_Value>65535) then
+disp("Error : Invalid input argument ''Top_Value'' in AVRPWM1Setduty function.");
+end
+endfunction