1 /* 2 ** ################################################################### 3 ** Processors: MK80FN256CAx15 4 ** MK80FN256VDC15 5 ** MK80FN256VLL15 6 ** MK80FN256VLQ15 7 ** 8 ** Compilers: Freescale C/C++ for Embedded ARM 9 ** GNU C Compiler 10 ** IAR ANSI C/C++ Compiler for ARM 11 ** Keil ARM C/C++ Compiler 12 ** MCUXpresso Compiler 13 ** 14 ** Reference manual: K80P121M150SF5RM, Rev. 2, May 2015 15 ** Version: rev. 2.2, 2015-07-29 16 ** Build: b181105 17 ** 18 ** Abstract: 19 ** Provides a system configuration function and a global variable that 20 ** contains the system frequency. It configures the device and initializes 21 ** the oscillator (PLL) that is part of the microcontroller device. 22 ** 23 ** Copyright 2016 Freescale Semiconductor, Inc. 24 ** Copyright 2016-2018 NXP 25 ** All rights reserved. 26 ** 27 ** SPDX-License-Identifier: BSD-3-Clause 28 ** 29 ** http: www.nxp.com 30 ** mail: support@nxp.com 31 ** 32 ** Revisions: 33 ** - rev. 1.0 (2014-07-30) 34 ** Initial version 35 ** - rev. 1.1 (2014-08-28) 36 ** Update of startup files - possibility to override DefaultISR added. 37 ** - rev. 1.2 (2014-11-07) 38 ** Update according to the new version of reference manual Rev. 1 Draft A. 39 ** - rev. 2.0 (2015-04-01) 40 ** Update according to the new version of reference manual Rev. 1. 41 ** - rev. 2.1 (2015-05-28) 42 ** Update according to the reference manual Rev. 2. 43 ** - rev. 2.2 (2015-07-29) 44 ** Correction of backward compatibility. 45 ** 46 ** ################################################################### 47 */ 48 49 /*! 50 * @file MK80F25615 51 * @version 2.2 52 * @date 2015-07-29 53 * @brief Device specific configuration file for MK80F25615 (header file) 54 * 55 * Provides a system configuration function and a global variable that contains 56 * the system frequency. It configures the device and initializes the oscillator 57 * (PLL) that is part of the microcontroller device. 58 */ 59 60 #ifndef _SYSTEM_MK80F25615_H_ 61 #define _SYSTEM_MK80F25615_H_ /**< Symbol preventing repeated inclusion */ 62 63 #ifdef __cplusplus 64 extern "C" { 65 #endif 66 67 #include <stdint.h> 68 69 70 #ifndef DISABLE_WDOG 71 #define DISABLE_WDOG 1 72 #endif 73 74 /* Define clock source values */ 75 76 #define CPU_XTAL_CLK_HZ 12000000U /* Value of the external crystal or oscillator clock frequency of the system oscillator (OSC) in Hz */ 77 #define CPU_XTAL32k_CLK_HZ 32768U /* Value of the external 32k crystal or oscillator clock frequency of the RTC in Hz */ 78 #define CPU_INT_SLOW_CLK_HZ 32768U /* Value of the slow internal oscillator clock frequency in Hz */ 79 #define CPU_INT_FAST_CLK_HZ 4000000U /* Value of the fast internal oscillator clock frequency in Hz */ 80 #define CPU_INT_IRC_CLK_HZ 48000000U /* Value of the 48M internal oscillator clock frequency in Hz */ 81 82 /* RTC oscillator setting */ 83 /* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */ 84 #define SYSTEM_RTC_CR_VALUE 0x0300U /* RTC_CR */ 85 86 /* Low power mode enable */ 87 /* SMC_PMPROT: AHSRUN=1,AVLP=1,ALLS=1,AVLLS=1 */ 88 #define SYSTEM_SMC_PMPROT_VALUE 0xAAU /* SMC_PMPROT */ 89 90 #define DEFAULT_SYSTEM_CLOCK 20971520u 91 92 93 /** 94 * @brief System clock frequency (core clock) 95 * 96 * The system clock frequency supplied to the SysTick timer and the processor 97 * core clock. This variable can be used by the user application to setup the 98 * SysTick timer or configure other parameters. It may also be used by debugger to 99 * query the frequency of the debug timer or configure the trace clock speed 100 * SystemCoreClock is initialized with a correct predefined value. 101 */ 102 extern uint32_t SystemCoreClock; 103 104 /** 105 * @brief Setup the microcontroller system. 106 * 107 * Typically this function configures the oscillator (PLL) that is part of the 108 * microcontroller device. For systems with variable clock speed it also updates 109 * the variable SystemCoreClock. SystemInit is called from startup_device file. 110 */ 111 void SystemInit (void); 112 113 /** 114 * @brief Updates the SystemCoreClock variable. 115 * 116 * It must be called whenever the core clock is changed during program 117 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 118 * the current core clock. 119 */ 120 void SystemCoreClockUpdate (void); 121 122 /** 123 * @brief SystemInit function hook. 124 * 125 * This weak function allows to call specific initialization code during the 126 * SystemInit() execution.This can be used when an application specific code needs 127 * to be called as close to the reset entry as possible (for example the Multicore 128 * Manager MCMGR_EarlyInit() function call). 129 * NOTE: No global r/w variables can be used in this hook function because the 130 * initialization of these variables happens after this function. 131 */ 132 void SystemInitHook (void); 133 134 #ifdef __cplusplus 135 } 136 #endif 137 138 #endif /* _SYSTEM_MK80F25615_H_ */ 139
