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1/*
2** ###################################################################
3** Processors: LPC54605J256BD100
4** LPC54605J256ET100
5** LPC54605J256ET180
6** LPC54605J512BD100
7** LPC54605J512ET100
8** LPC54605J512ET180
9**
10** Compilers: GNU C Compiler
11** IAR ANSI C/C++ Compiler for ARM
12** Keil ARM C/C++ Compiler
13** MCUXpresso Compiler
14**
15** Reference manual: LPC546xx User manual Rev.1.9 5 June 2017
16** Version: rev. 1.2, 2017-06-08
17** Build: b200304
18**
19** Abstract:
20** Provides a system configuration function and a global variable that
21** contains the system frequency. It configures the device and initializes
22** the oscillator (PLL) that is part of the microcontroller device.
23**
24** Copyright 2016 Freescale Semiconductor, Inc.
25** Copyright 2016-2020 NXP
26** All rights reserved.
27**
28** SPDX-License-Identifier: BSD-3-Clause
29**
30** http: www.nxp.com
31** mail: [email protected]
32**
33** Revisions:
34** - rev. 1.0 (2016-08-12)
35** Initial version.
36** - rev. 1.1 (2016-11-25)
37** Update CANFD and Classic CAN register.
38** Add MAC TIMERSTAMP registers.
39** - rev. 1.2 (2017-06-08)
40** Remove RTC_CTRL_RTC_OSC_BYPASS.
41** SYSCON_ARMTRCLKDIV rename to SYSCON_ARMTRACECLKDIV.
42** Remove RESET and HALT from SYSCON_AHBCLKDIV.
43**
44** ###################################################################
45*/
46
47/*!
48 * @file LPC54605
49 * @version 1.2
50 * @date 2017-06-08
51 * @brief Device specific configuration file for LPC54605 (header file)
52 *
53 * Provides a system configuration function and a global variable that contains
54 * the system frequency. It configures the device and initializes the oscillator
55 * (PLL) that is part of the microcontroller device.
56 */
57
58#ifndef _SYSTEM_LPC54605_H_
59#define _SYSTEM_LPC54605_H_ /**< Symbol preventing repeated inclusion */
60
61#ifdef __cplusplus
62extern "C" {
63#endif
64
65#include <stdint.h>
66
67#define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */
68#define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */
69#define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */
70#define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */
71#define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */
72#define CLK_CLK_IN 0u /* Default CLK_IN pin clock */
73
74
75/**
76 * @brief System clock frequency (core clock)
77 *
78 * The system clock frequency supplied to the SysTick timer and the processor
79 * core clock. This variable can be used by the user application to setup the
80 * SysTick timer or configure other parameters. It may also be used by debugger to
81 * query the frequency of the debug timer or configure the trace clock speed
82 * SystemCoreClock is initialized with a correct predefined value.
83 */
84extern uint32_t SystemCoreClock;
85
86/**
87 * @brief Setup the microcontroller system.
88 *
89 * Typically this function configures the oscillator (PLL) that is part of the
90 * microcontroller device. For systems with variable clock speed it also updates
91 * the variable SystemCoreClock. SystemInit is called from startup_device file.
92 */
93void SystemInit (void);
94
95/**
96 * @brief Updates the SystemCoreClock variable.
97 *
98 * It must be called whenever the core clock is changed during program
99 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
100 * the current core clock.
101 */
102void SystemCoreClockUpdate (void);
103
104/**
105 * @brief SystemInit function hook.
106 *
107 * This weak function allows to call specific initialization code during the
108 * SystemInit() execution.This can be used when an application specific code needs
109 * to be called as close to the reset entry as possible (for example the Multicore
110 * Manager MCMGR_EarlyInit() function call).
111 * NOTE: No global r/w variables can be used in this hook function because the
112 * initialization of these variables happens after this function.
113 */
114void SystemInitHook (void);
115
116#ifdef __cplusplus
117}
118#endif
119
120#endif /* _SYSTEM_LPC54605_H_ */