1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
** ###################################################################
** Processors: MK66FN2M0VLQ18
** MK66FN2M0VMD18
** MK66FX1M0VLQ18
** MK66FX1M0VMD18
**
** Compilers: Keil ARM C/C++ Compiler
** Freescale C/C++ for Embedded ARM
** GNU C Compiler
** IAR ANSI C/C++ Compiler for ARM
** MCUXpresso Compiler
**
** Reference manual: K66P144M180SF5RMV2, Rev. 1, Mar 2015
** Version: rev. 3.0, 2015-03-25
** Build: b171226
**
** 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.
**
** The Clear BSD License
** Copyright 2016 Freescale Semiconductor, Inc.
** Copyright 2016-2017 NXP
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted (subject to the limitations in the
** disclaimer below) provided that the following conditions are met:
**
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
**
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
**
** * Neither the name of the copyright holder nor the names of its
** contributors may be used to endorse or promote products derived from
** this software without specific prior written permission.
**
** NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
** GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
** HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
** IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
** http: www.nxp.com
** mail: support@nxp.com
**
** Revisions:
** - rev. 1.0 (2013-09-02)
** Initial version.
** - rev. 2.0 (2014-02-17)
** Register accessor macros added to the memory map.
** Symbols for Processor Expert memory map compatibility added to the memory map.
** Startup file for gcc has been updated according to CMSIS 3.2.
** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled.
** Update according to reference manual rev. 2
** - rev. 2.1 (2014-04-16)
** Update of SystemInit() and SystemCoreClockUpdate() functions.
** - rev. 2.2 (2014-10-14)
** Interrupt INT_LPTimer renamed to INT_LPTMR0, interrupt INT_Watchdog renamed to INT_WDOG_EWM.
** - rev. 2.3 (2014-11-20)
** Update according to reverence manual K65P169M180SF5RMV2_NDA, Rev. 0 Draft A, October 2014.
** Update of SystemInit() to use 16MHz external crystal.
** - rev. 2.4 (2015-02-19)
** Renamed interrupt vector LLW to LLWU.
** - rev. 3.0 (2015-03-25)
** Registers updated according to the reference manual revision 1, March 2015
**
** ###################################################################
*/
/*!
* @file MK66F18
* @version 3.0
* @date 2015-03-25
* @brief Device specific configuration file for MK66F18 (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_MK66F18_H_
#define _SYSTEM_MK66F18_H_ /**< Symbol preventing repeated inclusion */
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#ifndef DISABLE_WDOG
#define DISABLE_WDOG 1
#endif
/* Define clock source values */
#define CPU_XTAL_CLK_HZ 16000000U /* Value of the external crystal or oscillator clock frequency of the system oscillator (OSC) in Hz */
#define CPU_XTAL32k_CLK_HZ 32768U /* Value of the external 32k crystal or oscillator clock frequency of the RTC in Hz */
#define CPU_INT_SLOW_CLK_HZ 32768U /* Value of the slow internal oscillator clock frequency in Hz */
#define CPU_INT_FAST_CLK_HZ 4000000U /* Value of the fast internal oscillator clock frequency in Hz */
#define CPU_INT_IRC_CLK_HZ 48000000U /* Value of the 48M internal oscillator clock frequency in Hz */
/* RTC oscillator setting */
/* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */
#define SYSTEM_RTC_CR_VALUE 0x0300U /* RTC_CR */
/* Low power mode enable */
/* SMC_PMPROT: AHSRUN=1,AVLP=1,ALLS=1,AVLLS=1 */
#define SYSTEM_SMC_PMPROT_VALUE 0xAAU /* SMC_PMPROT */
#define DEFAULT_SYSTEM_CLOCK 20971520u
/**
* @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_MK66F18_H_ */
|
