1 /* 2 ** ################################################################### 3 ** Processors: MK22FN1M0VLH12 4 ** MK22FN1M0VLK12 5 ** MK22FN1M0VLL12 6 ** MK22FN1M0VLQ12 7 ** MK22FN1M0VMC12 8 ** MK22FN1M0VMD12 9 ** MK22FX512VLH12 10 ** MK22FX512VLK12 11 ** MK22FX512VLL12 12 ** MK22FX512VLQ12 13 ** MK22FX512VMC12 14 ** MK22FX512VMD12 15 ** 16 ** Compilers: Freescale C/C++ for Embedded ARM 17 ** GNU C Compiler 18 ** IAR ANSI C/C++ Compiler for ARM 19 ** Keil ARM C/C++ Compiler 20 ** MCUXpresso Compiler 21 ** 22 ** Reference manuals: K22P100M120SF5V2RM, Rev.5, March 2015 23 ** K22P121M120SF5V2RM, Rev.5, March 2015 24 ** K22P144M120SF5V2RM, Rev.5, March 2015 25 ** K22P64M120SF5V2RM, Rev.5, March 2015 26 ** K22P80M120SF5V2RM, Rev.5, March 2015 27 ** 28 ** Version: rev. 1.8, 2015-02-19 29 ** Build: b181105 30 ** 31 ** Abstract: 32 ** Provides a system configuration function and a global variable that 33 ** contains the system frequency. It configures the device and initializes 34 ** the oscillator (PLL) that is part of the microcontroller device. 35 ** 36 ** Copyright 2016 Freescale Semiconductor, Inc. 37 ** Copyright 2016-2018 NXP 38 ** All rights reserved. 39 ** 40 ** SPDX-License-Identifier: BSD-3-Clause 41 ** 42 ** http: www.nxp.com 43 ** mail: support@nxp.com 44 ** 45 ** Revisions: 46 ** - rev. 1.0 (2012-06-06) 47 ** Initial version. 48 ** - rev. 1.1 (2012-11-12) 49 ** Update according to reference manual rev.1, draft B 50 ** - rev. 1.2 (2012-12-04) 51 ** Update according to reference manual rev.1 52 ** - rev. 1.3 (2013-03-11) 53 ** System initialization updated to add 120MHz clock option. 54 ** - rev. 1.4 (2013-04-05) 55 ** Changed start of doxygen comment. 56 ** - rev. 1.5 (2013-05-16) 57 ** Update according to reference manual rev.2 58 ** - rev. 1.6 (2013-10-29) 59 ** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled. 60 ** Access restriction of some registers fixed. 61 ** - rev. 1.7 (2014-02-18) 62 ** UART0 module - LON registers removed. 63 ** - rev. 1.8 (2015-02-19) 64 ** update of SystemInit() imlementation 65 ** Module access macro module_BASES replaced by module_BASE_PTRS. 66 ** Register accessor macros added to the memory map. 67 ** Renamed interrupt vector Watchdog to WDOG_EWM, LPTimer to LPTMR0 and LLW to LLWU 68 ** 69 ** ################################################################### 70 */ 71 72 /*! 73 * @file MK22F12 74 * @version 1.8 75 * @date 2015-02-19 76 * @brief Device specific configuration file for MK22F12 (header file) 77 * 78 * Provides a system configuration function and a global variable that contains 79 * the system frequency. It configures the device and initializes the oscillator 80 * (PLL) that is part of the microcontroller device. 81 */ 82 83 #ifndef _SYSTEM_MK22F12_H_ 84 #define _SYSTEM_MK22F12_H_ /**< Symbol preventing repeated inclusion */ 85 86 #ifdef __cplusplus 87 extern "C" { 88 #endif 89 90 #include <stdint.h> 91 92 93 #ifndef DISABLE_WDOG 94 #define DISABLE_WDOG 1 95 #endif 96 97 98 /* Define clock source values */ 99 100 #define CPU_XTAL_CLK_HZ 8000000U /* Value of the external crystal or oscillator clock frequency of the system oscillator (OSC) in Hz */ 101 #define CPU_XTAL32k_CLK_HZ 32768U /* Value of the external 32k crystal or oscillator clock frequency of the RTC in Hz */ 102 #define CPU_INT_SLOW_CLK_HZ 32768U /* Value of the slow internal oscillator clock frequency in Hz */ 103 #define CPU_INT_FAST_CLK_HZ 4000000U /* Value of the fast internal oscillator clock frequency in Hz */ 104 105 /* RTC oscillator setting */ 106 /* #undef SYSTEM_RTC_CR_VALUE */ /* RTC oscillator not enabled. Commented out for MISRA compliance. */ 107 108 /* Low power mode enable */ 109 /* SMC_PMPROT: AVLP=1,ALLS=1,AVLLS=1 */ 110 #define SYSTEM_SMC_PMPROT_VALUE 0x2AU /* SMC_PMPROT */ 111 112 #define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */ 113 114 115 /** 116 * @brief System clock frequency (core clock) 117 * 118 * The system clock frequency supplied to the SysTick timer and the processor 119 * core clock. This variable can be used by the user application to setup the 120 * SysTick timer or configure other parameters. It may also be used by debugger to 121 * query the frequency of the debug timer or configure the trace clock speed 122 * SystemCoreClock is initialized with a correct predefined value. 123 */ 124 extern uint32_t SystemCoreClock; 125 126 /** 127 * @brief Setup the microcontroller system. 128 * 129 * Typically this function configures the oscillator (PLL) that is part of the 130 * microcontroller device. For systems with variable clock speed it also updates 131 * the variable SystemCoreClock. SystemInit is called from startup_device file. 132 */ 133 void SystemInit (void); 134 135 /** 136 * @brief Updates the SystemCoreClock variable. 137 * 138 * It must be called whenever the core clock is changed during program 139 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 140 * the current core clock. 141 */ 142 void SystemCoreClockUpdate (void); 143 144 /** 145 * @brief SystemInit function hook. 146 * 147 * This weak function allows to call specific initialization code during the 148 * SystemInit() execution.This can be used when an application specific code needs 149 * to be called as close to the reset entry as possible (for example the Multicore 150 * Manager MCMGR_EarlyInit() function call). 151 * NOTE: No global r/w variables can be used in this hook function because the 152 * initialization of these variables happens after this function. 153 */ 154 void SystemInitHook (void); 155 156 #ifdef __cplusplus 157 } 158 #endif 159 160 #endif /* _SYSTEM_MK22F12_H_ */ 161
