1 files changed, 25 insertions, 16 deletions
diff --git a/macros/Hardware/AVR/AVRGetTimerValue.sci b/macros/Hardware/AVR/AVRGetTimerValue.sci
index ab0146a..afb47ac 100644
--- a/macros/Hardware/AVR/AVRGetTimerValue.sci
+++ b/macros/Hardware/AVR/AVRGetTimerValue.sci
@@ -1,31 +1,40 @@
-function counts = AVRGetTimerValue(timer)
-// Function to set the prescalar for timer.
+// Copyright (C) 2017 - IIT Bombay - FOSSEE
 //
-// Calling Sequence
-//     AVRgetTimerValue(timer, prescalar)
+// 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 count = AVRGetTimerValue(timer)
+// Function to get timer count
 //
 // Parameters
-//     timer: timer to be set up (0,1,2)
-//     prescalar: prescalar to be used for generating PWM waveform (0-7)
-//     ***Refer datasheet for more description about timer
+//     timer : timer whose current count is to be returned 
+//             0 for timer0
+//             1 for timer1
+//             2 for timer2
 //              
 // Description
-//     This function sets prescalr for timers. 'timer' decides which of the 
-//     three (0,1,2) timers available to be used. The 'prescalar' is needed for 
-//     deciding timer clock. Select appropriate prescalar depending on MCU clock
-//     and requirement.
-//
+//     This function returns the count value of a desired timer.By knowing the count value 
+//     certain interrupt action can be taken.
 //
 // Examples
-//     AVRTimerSetup(0,1)   //Timer 0 with no scaling
+//     AVRGetTimerValue(0);   //returns present count of the TCNT0 counter
 //
 // See also
-//     AVRGetTimerValue
+//     AVRTimerSetup
 //
 // 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(timer>=3) then 
+disp("Error : Invalid input argument ''timer'' in AVRGetTimerValue function.");
+end
+count = 0; 
 endfunction