/* ** ################################################################### ** Processors: MIMX8ML8CVNKZ ** MIMX8ML8DVNLZ ** ** Compilers: GNU C Compiler ** IAR ANSI C/C++ Compiler for ARM ** Keil ARM C/C++ Compiler ** ** Reference manual: IMX8MPRM, Rev.D, 12/2020 ** Version: rev. 5.0, 2021-03-01 ** Build: b211028 ** ** 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 2016-2021 NXP ** All rights reserved. ** ** SPDX-License-Identifier: BSD-3-Clause ** ** http: www.nxp.com ** mail: support@nxp.com ** ** Revisions: ** - rev. 1.0 (2019-10-11) ** Initial version. ** - rev. 2.0 (2020-02-21) ** Rev.B Header. ** - rev. 3.0 (2020-06-22) ** Rev.C Header. ** - rev. 4.0 (2020-11-16) ** Rev.D Header. ** - rev. 5.0 (2021-03-01) ** Rev.D Header Final. ** ** ################################################################### */ /*! * @file MIMX8ML8_ca53 * @version 5.0 * @date 2021-03-01 * @brief Device specific configuration file for MIMX8ML8_ca53 (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_MIMX8ML8_ca53_H_ #define _SYSTEM_MIMX8ML8_ca53_H_ /**< Symbol preventing repeated inclusion */ #ifdef __cplusplus extern "C" { #endif #include /* Define clock source values */ #define DEFAULT_SYSTEM_CLOCK 8000000U /* 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_MIMX8ML8_ca53_H_ */