1 files changed, 78 insertions, 0 deletions
diff --git a/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c b/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c
new file mode 100644
index 00000000..8998fc91
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+++ b/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c
@@ -0,0 +1,78 @@
+// 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 to change state (high\low) of a digital output pin on AVR
+//
+// Calling Sequence
+//     u8AVRDigitalOuts(port,pin,state)
+//
+// Parameters
+//     port : port of microcontroller to be used (1 for PORTA, 2 for PORTB,...)
+//     pin : pin of port (mentioned above) to be used
+//     state : state to be outputed on pin (0 for low and 1 for high)
+//
+// Description
+//     Each AVR microcontroller has pins which can be configured as digital
+//     outputs. These are normally divided among some 'ports' (group of pins).
+//     User has to select one of these port and which pin of that port as 
+//     digital output. Also, desired output state must be specified as 
+//     '1' (high) or '0' (low).     
+//
+// Examples
+//     u8AVRDigitalOuts(1,0,1)
+//
+// Authors
+//     Siddhesh Wani
+//     Ashish Kamble
+
+
+#include "AVRPeripheralGPIO.h"
+
+void u8AVRDigitalOuts(uint8 port,uint8 pin,uint8 state)
+{
+    if(state == LOW)
+    {/*Make output pin high*/
+	if(port == PORT_A)
+	{
+	    PORTA = PORTA & ~(1<<pin);
+	}
+	if(port == PORT_B)
+	{
+	    PORTB = PORTB & ~(1<<pin);
+	}
+	if(port == PORT_C)
+	{
+	    PORTC = PORTC & ~(1<<pin);
+	}
+	if(port == PORT_D)
+	{
+	    PORTD = PORTD & ~(1<<pin);
+	}
+    }
+    else
+    {/*Make output pin high*/
+	if(port == PORT_A)
+	{
+	    PORTA = PORTA | (1<<pin);
+	}
+	if(port == PORT_B)
+	{
+	    PORTB = PORTB | (1<<pin);
+	}
+	if(port == PORT_C)
+	{
+	    PORTC = PORTC | (1<<pin);
+	}
+	if(port == PORT_D)
+	{
+	    PORTD = PORTD | (1<<pin);
+	}
+    }
+}