MCUXpresso_MCXA153/devices/MCXA153/system_MCXA153.c

100 lines
3.3 KiB
C

/*
** ###################################################################
** Processors: MCXA153VFM
** MCXA153VFT
** MCXA153VLH
**
** Compilers: GNU C Compiler
** IAR ANSI C/C++ Compiler for ARM
** Keil ARM C/C++ Compiler
** MCUXpresso Compiler
**
** Reference manual: MCXA1 User manual
** Version: rev. 1.0, 2022-03-29
** Build: b231121
**
** 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 2016-2023 NXP
** SPDX-License-Identifier: BSD-3-Clause
**
** http: www.nxp.com
** mail: support@nxp.com
**
** Revisions:
** - rev. 1.0 (2022-03-29)
** Initial version based on v0.1UM
**
** ###################################################################
*/
/*!
* @file MCXA153
* @version 1.0
* @date 2022-03-29
* @brief Device specific configuration file for MCXA153 (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()
---------------------------------------------------------------------------- */
__attribute__ ((weak)) void SystemInit (void) {
SCB->CPACR |= ((3UL << 0*2) | (3UL << 1*2)); /* set CP0, CP1 Full Access in Secure mode (enable PowerQuad) */
#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
SCB_NS->CPACR |= ((3UL << 0*2) | (3UL << 1*2)); /* set CP0, CP1 Full Access in Normal mode (enable PowerQuad) */
#endif /* (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
SCB->NSACR |= ((3UL << 0) | (3UL << 10)); /* enable CP0, CP1, CP10, CP11 Non-secure Access */
#if defined(__MCUXPRESSO)
extern void(*const g_pfnVectors[]) (void);
SCB->VTOR = (uint32_t) &g_pfnVectors;
#else
extern void *__Vectors;
SCB->VTOR = (uint32_t) &__Vectors;
#endif
/* Enable the LPCAC */
SYSCON->LPCAC_CTRL |= SYSCON_LPCAC_CTRL_LPCAC_MEM_REQ_MASK;
SYSCON->LPCAC_CTRL &= ~SYSCON_LPCAC_CTRL_DIS_LPCAC_MASK;
SystemInitHook();
}
/* ----------------------------------------------------------------------------
-- SystemCoreClockUpdate()
---------------------------------------------------------------------------- */
void SystemCoreClockUpdate (void) {
}
/* ----------------------------------------------------------------------------
-- SystemInitHook()
---------------------------------------------------------------------------- */
__attribute__ ((weak)) void SystemInitHook (void) {
/* Void implementation of the weak function. */
}