example.c

Coldfire MCF5282 DBug bootloader

/*
 * File:		example.c
 * Purpose:		Template for <project>.c which contains the board-specific
 *				routines that are required by dBUG
 *
 * Notes:
 *
 */

#include "src/include/dbug.h"

#ifdef DBUG_NETWORK
/* put network specific includes/defines here */
#endif

/********************************************************************/
/* 
 * Global BSP variables referenced by dBUG 
 */
const char BRD_STR[]		= "EXAMPLE";
const int  BRD_VER_MAJOR	= 1;
const char BRD_VER_MINOR	= 'a';
const char COPYRIGHT2[]		= "";

/********************************************************************/
void
board_init (void)
{
	extern REGISTERS context;

	/* 
	 * Good for detecting NULL dereferences 
	 */
	*(ADDRESS *)(0) = 0;

    /*
     * Set dBUG user stack to top of SDRAM
     */ 
	context.a7 = (SDRAM_ADDRESS + SDRAM_SIZE);
}

/********************************************************************/
void
board_init2 (void)
{
	/* More board-specific initialization here */	
}

/********************************************************************/
void
board_init3 (void)
{
	/* More board-specific initialization here */	
}

/********************************************************************/
char
board_getchar (void)
{
	return CHARACTER_INPUT;
}

/********************************************************************/
void
board_putchar (char ch)
{
	CHARACTER_OUTPUT(ch);
}

/********************************************************************/
int
board_getchar_present (void)
{
    return TEST_FOR_CHAR_INPUT;
}

/********************************************************************/
void
board_putchar_flush (void)
{
	FLUSH_CHARACTER_OUTPUT;
}

/********************************************************************/
int
board_dlio_init (void)
{
#ifdef DBUG_NETWORK
	/*	
	 * Download initialization routine 
	 */
#endif
	return TRUE;
}

/********************************************************************/
void
board_dlio_done (void)
{
#ifdef DBUG_NETWORK
	/*
	 * Download complete, clean up
	 */
#endif
}

/********************************************************************/
int
board_dlio_getchar (void)
{
	/* Download character input routine */
	int ch;
 
	switch (uif_dlio)
	{
#ifdef DBUG_NETWORK
		case UIF_DLIO_NETWORK:
			ch = tftp_in_char();
			break;
#endif
		case UIF_DLIO_CONSOLE:
		default:
			ch = board_getchar();
			break;
	}
	return ch;
}
 
/********************************************************************/
int
board_dlio_vda (ADDRESS addr)
{
	/*	Determines if the given address is valid for downloads */

	if (((addr >= USER_SPACE) && 
			(addr < SDRAM_SIZE))
		|| ((addr >= EXT_SRAM_ADDRESS) &&
		    (addr < (EXT_SRAM_ADDRESS + EXT_SRAM_SIZE)))
		|| ((addr >= SRAM_ADDRESS) && 
			(addr < (SRAM_ADDRESS + SRAM_SIZE))))
		return 1;
	else
		return 0;
}

/********************************************************************/
#ifdef DBUG_NETWORK
int
board_dlio_filetype (char *filename, char *ext)
{
	(void)filename;
	(void)ext;

	return UIF_DLIO_UNKNOWN;
}
#endif

/********************************************************************/
void
board_reset (void)
{
	/*
	 * Initiate software reset
	 */
}

/********************************************************************/
void
board_irq_enable (void)
{
	/*
	 * Enable Interrupts
	 */
}

/********************************************************************/
void
board_irq_disable (void)
{
	/*
	 * Disable Interrupts
	 */
}
/********************************************************************/