oddebug.h

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/* Name: oddebug.h
 * Project: AVR library
 * Author: Christian Starkjohann
 * Creation Date: 2005-01-16
 * Tabsize: 4
 * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
 * License: Proprietary, free under certain conditions. See Documentation.
 * This Revision: $Id: oddebug.h 20 2005-02-20 16:39:43Z cs $
 */

#ifndef __oddebug_h_included__
#define __oddebug_h_included__

/*
General Description:
This module implements a function for debug logs on the serial line of the
AVR microcontroller. Debugging can be configured with the define
'DEBUG_LEVEL'. If this macro is not defined or defined to 0, all debugging
calls are no-ops. If it is 1, DBG1 logs will appear, but not DBG2. If it is
2, DBG1 and DBG2 logs will be printed.

A debug log consists of a label ('prefix') to indicate which debug log created
the output and a memory block to dump in hex ('data' and 'len').
*/


#ifndef F_CPU
#	define	F_CPU	12000000	/* 12 MHz */
#endif

#ifndef uchar
#	define	uchar	unsigned char
#endif

#ifndef DEBUG_LEVEL
#	define	DEBUG_LEVEL	0
#endif

/* ------------------------------------------------------------------------- */

#if DEBUG_LEVEL > 0
#	define	DBG1(prefix, data, len)	odDebug(prefix, data, len)
#else
#	define	DBG1(prefix, data, len)
#endif

#if DEBUG_LEVEL > 1
#	define	DBG2(prefix, data, len)	odDebug(prefix, data, len)
#else
#	define	DBG2(prefix, data, len)
#endif

/* ------------------------------------------------------------------------- */

#if	DEBUG_LEVEL > 0
extern void	odDebug(uchar prefix, uchar *data, uchar len);

#include <avr/io.h>

static inline void	odDebugInit(void)
{
	UCR |= (1<<TXEN);
	UBRR = F_CPU / (9600 * 16L) - 1;
}
#else
#	define odDebugInit()
#endif

/* ------------------------------------------------------------------------- */

#endif /* __oddebug_h_included__ */