MCUXpresso_LPC54102/devices/LPC54102/system_LPC54102_cm0plus.c

96 lines
3.0 KiB
C

/*
** ###################################################################
** Processors: LPC54102J256BD64_cm0plus
** LPC54102J256UK49_cm0plus
** LPC54102J512BD64_cm0plus
** LPC54102J512UK49_cm0plus
**
** Compilers: Keil ARM C/C++ Compiler
** IAR ANSI C/C++ Compiler for ARM
** MCUXpresso Compiler
**
** Reference manual: LPC5410x User manual Rev. 2.4 25 May 2016
** Version: rev. 1.0, 2016-04-29
** Build: b180802
**
** Abstract:
** Provides a system configuration function and a global variable that
** contains the system frequency. It configures the device and initializes
** the oscillator (PLL) that is part of the microcontroller device.
**
** Copyright 2016 Freescale Semiconductor, Inc.
** Copyright 2016-2018 NXP
**
** SPDX-License-Identifier: BSD-3-Clause
**
** http: www.nxp.com
** mail: support@nxp.com
**
** Revisions:
** - rev. 1.0 (2016-04-29)
** Initial version.
**
** ###################################################################
*/
/*!
* @file LPC54102_cm0plus
* @version 1.0
* @date 2016-04-29
* @brief Device specific configuration file for LPC54102_cm0plus
* (implementation file)
*
* Provides a system configuration function and a global variable that contains
* the system frequency. It configures the device and initializes the oscillator
* (PLL) that is part of the microcontroller device.
*/
#include <stdint.h>
#include "fsl_device_registers.h"
/* ----------------------------------------------------------------------------
-- Core clock
---------------------------------------------------------------------------- */
uint32_t SystemCoreClock = DEFAULT_SYSTEM_CLOCK;
/* ----------------------------------------------------------------------------
-- SystemInit()
---------------------------------------------------------------------------- */
void SystemInit (void) {
#if defined(__CODE_RED)
extern void(*const g_pfnVectors[]) (void);
SCB->VTOR = (uint32_t) &g_pfnVectors;
#else
extern void *__Vectors;
SCB->VTOR = (uint32_t) &__Vectors;
#endif
/* Optionally enable RAM banks that may be off by default at reset */
#if !defined (DONT_ENABLE_DISABLED_RAMBANKS)
SYSCON->AHBCLKCTRLSET[0] = SYSCON_AHBCLKCTRL_SRAM2_MASK;
#endif
SystemInitHook();
}
/* ----------------------------------------------------------------------------
-- SystemCoreClockUpdate()
---------------------------------------------------------------------------- */
void SystemCoreClockUpdate (void) {
}
/* ----------------------------------------------------------------------------
-- SystemInitHook()
---------------------------------------------------------------------------- */
__attribute__ ((weak)) void SystemInitHook (void) {
/* Void implementation of the weak function. */
}