sysinit.c

/*
 * @brief Common SystemInit function for LPC17xx/40xx chips
 *
 * @note
 * Copyright 2013-2014, 2019 NXP
 * All rights reserved.
 *
 * @par
 * Software that is described herein is for illustrative purposes only
 * which provides customers with programming information regarding the
 * LPC products.  This software is supplied "AS IS" without any warranties of
 * any kind, and NXP Semiconductors and its licensor disclaim any and
 * all warranties, express or implied, including all implied warranties of
 * merchantability, fitness for a particular purpose and non-infringement of
 * intellectual property rights.  NXP Semiconductors assumes no responsibility
 * or liability for the use of the software, conveys no license or rights under any
 * patent, copyright, mask work right, or any other intellectual property rights in
 * or to any products. NXP Semiconductors reserves the right to make changes
 * in the software without notification. NXP Semiconductors also makes no
 * representation or warranty that such application will be suitable for the
 * specified use without further testing or modification.
 *
 * @par
 * Permission to use, copy, modify, and distribute this software and its
 * documentation is hereby granted, under NXP Semiconductors' and its
 * licensor's relevant copyrights in the software, without fee, provided that it
 * is used in conjunction with NXP Semiconductors microcontrollers.  This
 * copyright, permission, and disclaimer notice must appear in all copies of
 * this code.
 */

 #if defined(NO_BOARD_LIB)
 #include "chip.h"
 #else
 #include "board.h"
 #endif

/*****************************************************************************
 * Private types/enumerations/variables
 ****************************************************************************/

/*****************************************************************************
 * Public types/enumerations/variables
 ****************************************************************************/

#if defined(NO_BOARD_LIB)
const uint32_t OscRateIn = 12000000;
const uint32_t RTCOscRateIn = 32768;
#endif

/*****************************************************************************
 * Private functions
 ****************************************************************************/

/*****************************************************************************
 * Public functions
 ****************************************************************************/

/* Set up and initialize hardware prior to call to main */
void SystemInit(void)
{
	unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;

#if defined(__IAR_SYSTEMS_ICC__)
	extern void *__vector_table;

	*pSCB_VTOR = (unsigned int) &__vector_table;
#elif defined(__CODE_RED)
	extern void *g_pfnVectors;

	*pSCB_VTOR = (unsigned int) &g_pfnVectors;
#elif defined(__ARMCC_VERSION)
	extern void *__Vectors;

	*pSCB_VTOR = (unsigned int) &__Vectors;
#endif

#if defined(__FPU_PRESENT) && __FPU_PRESENT == 1
	fpuInit();
#endif

#if defined(NO_BOARD_LIB)
	/* Chip specific SystemInit */
//	Chip_SystemInit();
#else
	/* Setup system clocking and muxing */
	Board_SystemInit();
#endif
}