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/*
** ###################################################################
** Processors: MIMX8MN1CVTIZ
** MIMX8MN1DVTJZ
**
** Compilers: GNU C Compiler
** IAR ANSI C/C++ Compiler for ARM
** Keil ARM C/C++ Compiler
**
** Reference manual: MX8MNRM, Rev.A, 04/2019
** Version: rev. 2.0, 2019-09-23
** Build: b190830
**
** 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 2016-2019 NXP
** All rights reserved.
**
** SPDX-License-Identifier: BSD-3-Clause
**
** http: www.nxp.com
** mail: [email protected]
**
** Revisions:
** - rev. 1.0 (2019-04-22)
** Initial version.
** - rev. 2.0 (2019-09-23)
** Rev.B Header RFP
**
** ###################################################################
*/
/*!
* @file MIMX8MN1_cm7
* @version 2.0
* @date 2019-09-23
* @brief Device specific configuration file for MIMX8MN1_cm7 (header 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.
*/
#ifndef _SYSTEM_MIMX8MN1_cm7_H_
#define _SYSTEM_MIMX8MN1_cm7_H_ /**< Symbol preventing repeated inclusion */
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/* i.MX8MN Definitions */
#ifndef DISABLE_WDOG
#define DISABLE_WDOG 1
#endif
/* Define clock source values */
#define CPU_XTAL_SOSC_CLK_24MHZ 24000000u /* Value of the external System Oscillator Clock(SOSC) frequency in Hz */
#define CLK_PAD_CLK 0u /* The value could be changed according to the actual usage */
#define DEFAULT_SYSTEM_CLOCK 600000000u /* Default System clock value */
/**
* @brief System clock frequency (core clock)
*
* The system clock frequency supplied to the SysTick timer and the processor
* core clock. This variable can be used by the user application to setup the
* SysTick timer or configure other parameters. It may also be used by debugger to
* query the frequency of the debug timer or configure the trace clock speed
* SystemCoreClock is initialized with a correct predefined value.
*/
extern uint32_t SystemCoreClock;
/**
* @brief Setup the microcontroller system.
*
* Typically this function configures the oscillator (PLL) that is part of the
* microcontroller device. For systems with variable clock speed it also updates
* the variable SystemCoreClock. SystemInit is called from startup_device file.
*/
void SystemInit(void);
/**
* @brief Updates the SystemCoreClock variable.
*
* It must be called whenever the core clock is changed during program
* execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
* the current core clock.
*/
void SystemCoreClockUpdate(void);
/**
* @brief SystemInit function hook.
*
* This weak function allows to call specific initialization code during the
* SystemInit() execution.This can be used when an application specific code needs
* to be called as close to the reset entry as possible (for example the Multicore
* Manager MCMGR_EarlyInit() function call).
* NOTE: No global r/w variables can be used in this hook function because the
* initialization of these variables happens after this function.
*/
void SystemInitHook(void);
#ifdef __cplusplus
}
#endif
#endif /* _SYSTEM_MIMX8MN1_cm7_H_ */
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