Diff: wiring_shift.c

Revision:

5:52ed7aa62e95

Parent:

4:40396527a068

--- a/wiring_shift.c	Sat Jun 04 20:16:04 2011 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,55 +0,0 @@
-/*
-  wiring_shift.c - shiftOut() function
-  Part of Arduino - http://www.arduino.cc/
-
-  Copyright (c) 2005-2006 David A. Mellis
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General
-  Public License along with this library; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
-  Boston, MA  02111-1307  USA
-
-  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
-*/
-
-#include "wiring_private.h"
-
-uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) {
-	uint8_t value = 0;
-	uint8_t i;
-
-	for (i = 0; i < 8; ++i) {
-		digitalWrite(clockPin, HIGH);
-		if (bitOrder == LSBFIRST)
-			value |= digitalRead(dataPin) << i;
-		else
-			value |= digitalRead(dataPin) << (7 - i);
-		digitalWrite(clockPin, LOW);
-	}
-	return value;
-}
-
-void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
-{
-	uint8_t i;
-
-	for (i = 0; i < 8; i++)  {
-		if (bitOrder == LSBFIRST)
-			digitalWrite(dataPin, !!(val & (1 << i)));
-		else	
-			digitalWrite(dataPin, !!(val & (1 << (7 - i))));
-			
-		digitalWrite(clockPin, HIGH);
-		digitalWrite(clockPin, LOW);		
-	}
-}