1 /* 2 ** ################################################################### 3 ** Processors: MKV56F1M0VLL24 4 ** MKV56F1M0VLQ24 5 ** MKV56F1M0VMD24 6 ** MKV56F512VLL24 7 ** MKV56F512VLQ24 8 ** MKV56F512VMD24 9 ** 10 ** Compilers: Freescale C/C++ for Embedded ARM 11 ** GNU C Compiler 12 ** IAR ANSI C/C++ Compiler for ARM 13 ** Keil ARM C/C++ Compiler 14 ** MCUXpresso Compiler 15 ** 16 ** Reference manual: KV5XP144M240RM Rev. 3, 02/2016 17 ** Version: rev. 0.3, 2016-02-29 18 ** Build: b181105 19 ** 20 ** Abstract: 21 ** Provides a system configuration function and a global variable that 22 ** contains the system frequency. It configures the device and initializes 23 ** the oscillator (PLL) that is part of the microcontroller device. 24 ** 25 ** Copyright 2016 Freescale Semiconductor, Inc. 26 ** Copyright 2016-2018 NXP 27 ** All rights reserved. 28 ** 29 ** SPDX-License-Identifier: BSD-3-Clause 30 ** 31 ** http: www.nxp.com 32 ** mail: support@nxp.com 33 ** 34 ** Revisions: 35 ** - rev. 0.1 (2015-02-24) 36 ** Initial version. 37 ** - rev. 0.2 (2015-10-21) 38 ** UART0 - removed LON functionality. 39 ** FMC - corrected base address. 40 ** - rev. 0.3 (2016-02-29) 41 ** PORT - removed registers GICLR, GICHR. 42 ** 43 ** ################################################################### 44 */ 45 46 /*! 47 * @file MKV56F24 48 * @version 0.3 49 * @date 2016-02-29 50 * @brief Device specific configuration file for MKV56F24 (header file) 51 * 52 * Provides a system configuration function and a global variable that contains 53 * the system frequency. It configures the device and initializes the oscillator 54 * (PLL) that is part of the microcontroller device. 55 */ 56 57 #ifndef _SYSTEM_MKV56F24_H_ 58 #define _SYSTEM_MKV56F24_H_ /**< Symbol preventing repeated inclusion */ 59 60 #ifdef __cplusplus 61 extern "C" { 62 #endif 63 64 #include <stdint.h> 65 66 67 #ifndef DISABLE_WDOG 68 #define DISABLE_WDOG 1 69 #endif 70 71 /* Define clock source values */ 72 73 #define CPU_XTAL_CLK_HZ 50000000UL /* Value of the external crystal or oscillator clock frequency in Hz */ 74 #define CPU_INT_SLOW_CLK_HZ 32768UL /* Value of the slow internal oscillator clock frequency in Hz */ 75 #define CPU_INT_FAST_CLK_HZ 4000000UL /* Value of the fast internal oscillator clock frequency in Hz */ 76 77 /* Low power mode enable */ 78 79 /* SMC_PMPROT: AHSRUN=1,?=0,AVLP=1,?=0,?=0,?=0,AVLLS=1,?=0 */ 80 #define SYSTEM_SMC_PMPROT_VALUE SMC_PMPROT_AHSRUN_MASK | SMC_PMPROT_AVLP_MASK | SMC_PMPROT_AVLLS_MASK /* Mask of allowed low power modes used to initialize power modes protection register */ 81 82 #define DEFAULT_SYSTEM_CLOCK 20971520UL /* Default System clock value */ 83 84 85 /** 86 * @brief System clock frequency (core clock) 87 * 88 * The system clock frequency supplied to the SysTick timer and the processor 89 * core clock. This variable can be used by the user application to setup the 90 * SysTick timer or configure other parameters. It may also be used by debugger to 91 * query the frequency of the debug timer or configure the trace clock speed 92 * SystemCoreClock is initialized with a correct predefined value. 93 */ 94 extern uint32_t SystemCoreClock; 95 96 /** 97 * @brief Setup the microcontroller system. 98 * 99 * Typically this function configures the oscillator (PLL) that is part of the 100 * microcontroller device. For systems with variable clock speed it also updates 101 * the variable SystemCoreClock. SystemInit is called from startup_device file. 102 */ 103 void SystemInit (void); 104 105 /** 106 * @brief Updates the SystemCoreClock variable. 107 * 108 * It must be called whenever the core clock is changed during program 109 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 110 * the current core clock. 111 */ 112 void SystemCoreClockUpdate (void); 113 114 /** 115 * @brief SystemInit function hook. 116 * 117 * This weak function allows to call specific initialization code during the 118 * SystemInit() execution.This can be used when an application specific code needs 119 * to be called as close to the reset entry as possible (for example the Multicore 120 * Manager MCMGR_EarlyInit() function call). 121 * NOTE: No global r/w variables can be used in this hook function because the 122 * initialization of these variables happens after this function. 123 */ 124 void SystemInitHook (void); 125 126 #ifdef __cplusplus 127 } 128 #endif 129 130 #endif /* _SYSTEM_MKV56F24_H_ */ 131
