Add new more reliable software UART for the XPLAINBridge project by David Prentice and Peter Danneger.

Projects/XPLAINBridge/Lib/SoftUART.h

@@ -0,0 +1,60 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  David Prentice (david.prentice [at] farming [dot] uk)
+  Copyright 2009  Peter Danneger
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, provided that the above copyright notice appear in all
+  copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+#ifndef _SOFT_UART_
+#define _SOFT_UART_
+
+	/* Includes: */
+		#include <avr/io.h>
+		#include <avr/interrupt.h>
+		#include "SoftUART.h"
+
+	/* Macros: */
+		#define BAUD       9600
+		#define BIT_TIME   (uint16_t)((F_CPU + (BAUD / 2)) / BAUD)
+
+		#define SRX        PD0
+		#define SRXPIN     PIND
+		#define SRXPORT    PORTD
+
+		#define STX        PD1
+		#define STXPORT    PORTD
+		#define STXDDR     DDRD
+
+	/* Function Prototypes: */
+		unsigned char SoftUART_IsReady(void);
+		unsigned char SoftUART_TxByte(unsigned char c);
+		unsigned char SoftUART_IsReceived(void);
+		unsigned char SoftUART_RxByte(void);
+		void SoftUART_Init(void);
+
+#endif