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1/*
2** ###################################################################
3** Processors: MK66FN2M0VLQ18
4** MK66FN2M0VMD18
5** MK66FX1M0VLQ18
6** MK66FX1M0VMD18
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: K66P144M180SF5RMV2, Rev. 1, Mar 2015
15** Version: rev. 3.0, 2015-03-25
16** Build: b201013
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 2016-2020 NXP
25** All rights reserved.
26**
27** SPDX-License-Identifier: BSD-3-Clause
28**
29** http: www.nxp.com
30** mail: [email protected]
31**
32** Revisions:
33** - rev. 1.0 (2013-09-02)
34** Initial version.
35** - rev. 2.0 (2014-02-17)
36** Register accessor macros added to the memory map.
37** Symbols for Processor Expert memory map compatibility added to the memory map.
38** Startup file for gcc has been updated according to CMSIS 3.2.
39** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
40** Update according to reference manual rev. 2
41** - rev. 2.1 (2014-04-16)
42** Update of SystemInit() and SystemCoreClockUpdate() functions.
43** - rev. 2.2 (2014-10-14)
44** Interrupt INT_LPTimer renamed to INT_LPTMR0, interrupt INT_Watchdog renamed to INT_WDOG_EWM.
45** - rev. 2.3 (2014-11-20)
46** Update according to reverence manual K65P169M180SF5RMV2_NDA, Rev. 0 Draft A, October 2014.
47** Update of SystemInit() to use 16MHz external crystal.
48** - rev. 2.4 (2015-02-19)
49** Renamed interrupt vector LLW to LLWU.
50** - rev. 3.0 (2015-03-25)
51** Registers updated according to the reference manual revision 1, March 2015
52**
53** ###################################################################
54*/
55
56/*!
57 * @file MK66F18
58 * @version 3.0
59 * @date 2015-03-25
60 * @brief Device specific configuration file for MK66F18 (header file)
61 *
62 * Provides a system configuration function and a global variable that contains
63 * the system frequency. It configures the device and initializes the oscillator
64 * (PLL) that is part of the microcontroller device.
65 */
66
67#ifndef _SYSTEM_MK66F18_H_
68#define _SYSTEM_MK66F18_H_ /**< Symbol preventing repeated inclusion */
69
70#ifdef __cplusplus
71extern "C" {
72#endif
73
74#include <stdint.h>
75
76
77#ifndef DISABLE_WDOG
78 #define DISABLE_WDOG 1
79#endif
80
81/* Define clock source values */
82
83#define CPU_XTAL_CLK_HZ 16000000U /* Value of the external crystal or oscillator clock frequency of the system oscillator (OSC) in Hz */
84#define CPU_XTAL32k_CLK_HZ 32768U /* Value of the external 32k crystal or oscillator clock frequency of the RTC in Hz */
85#define CPU_INT_SLOW_CLK_HZ 32768U /* Value of the slow internal oscillator clock frequency in Hz */
86#define CPU_INT_FAST_CLK_HZ 4000000U /* Value of the fast internal oscillator clock frequency in Hz */
87#define CPU_INT_IRC_CLK_HZ 48000000U /* Value of the 48M internal oscillator clock frequency in Hz */
88
89/* RTC oscillator setting */
90/* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */
91#define SYSTEM_RTC_CR_VALUE 0x0300U /* RTC_CR */
92
93/* Low power mode enable */
94/* SMC_PMPROT: AHSRUN=1,AVLP=1,ALLS=1,AVLLS=1 */
95#define SYSTEM_SMC_PMPROT_VALUE 0xAAU /* SMC_PMPROT */
96
97#define DEFAULT_SYSTEM_CLOCK 20971520u
98
99
100/**
101 * @brief System clock frequency (core clock)
102 *
103 * The system clock frequency supplied to the SysTick timer and the processor
104 * core clock. This variable can be used by the user application to setup the
105 * SysTick timer or configure other parameters. It may also be used by debugger to
106 * query the frequency of the debug timer or configure the trace clock speed
107 * SystemCoreClock is initialized with a correct predefined value.
108 */
109extern uint32_t SystemCoreClock;
110
111/**
112 * @brief Setup the microcontroller system.
113 *
114 * Typically this function configures the oscillator (PLL) that is part of the
115 * microcontroller device. For systems with variable clock speed it also updates
116 * the variable SystemCoreClock. SystemInit is called from startup_device file.
117 */
118void SystemInit (void);
119
120/**
121 * @brief Updates the SystemCoreClock variable.
122 *
123 * It must be called whenever the core clock is changed during program
124 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
125 * the current core clock.
126 */
127void SystemCoreClockUpdate (void);
128
129/**
130 * @brief SystemInit function hook.
131 *
132 * This weak function allows to call specific initialization code during the
133 * SystemInit() execution.This can be used when an application specific code needs
134 * to be called as close to the reset entry as possible (for example the Multicore
135 * Manager MCMGR_EarlyInit() function call).
136 * NOTE: No global r/w variables can be used in this hook function because the
137 * initialization of these variables happens after this function.
138 */
139void SystemInitHook (void);
140
141#ifdef __cplusplus
142}
143#endif
144
145#endif /* _SYSTEM_MK66F18_H_ */