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1/*
2** ###################################################################
3** Processors: LPC54005JBD100
4** LPC54005JET100
5**
6** Compilers: GNU C Compiler
7** IAR ANSI C/C++ Compiler for ARM
8** Keil ARM C/C++ Compiler
9** MCUXpresso Compiler
10**
11** Reference manual: LPC540xx/LPC54S0xx User manual Rev.0.8 5 June 2018
12** Version: rev. 1.2, 2017-06-08
13** Build: b201015
14**
15** Abstract:
16** Provides a system configuration function and a global variable that
17** contains the system frequency. It configures the device and initializes
18** the oscillator (PLL) that is part of the microcontroller device.
19**
20** Copyright 2016 Freescale Semiconductor, Inc.
21** Copyright 2016-2020 NXP
22** All rights reserved.
23**
24** SPDX-License-Identifier: BSD-3-Clause
25**
26** http: www.nxp.com
27** mail: [email protected]
28**
29** Revisions:
30** - rev. 1.0 (2016-08-12)
31** Initial version.
32** - rev. 1.1 (2016-11-25)
33** Update CANFD and Classic CAN register.
34** Add MAC TIMERSTAMP registers.
35** - rev. 1.2 (2017-06-08)
36** Remove RTC_CTRL_RTC_OSC_BYPASS.
37** SYSCON_ARMTRCLKDIV rename to SYSCON_ARMTRACECLKDIV.
38** Remove RESET and HALT from SYSCON_AHBCLKDIV.
39**
40** ###################################################################
41*/
42
43/*!
44 * @file LPC54005
45 * @version 1.2
46 * @date 2017-06-08
47 * @brief Device specific configuration file for LPC54005 (header file)
48 *
49 * Provides a system configuration function and a global variable that contains
50 * the system frequency. It configures the device and initializes the oscillator
51 * (PLL) that is part of the microcontroller device.
52 */
53
54#ifndef _SYSTEM_LPC54005_H_
55#define _SYSTEM_LPC54005_H_ /**< Symbol preventing repeated inclusion */
56
57#ifdef __cplusplus
58extern "C" {
59#endif
60
61#include <stdint.h>
62
63#define DEFAULT_SYSTEM_CLOCK 12000000u /* Default System clock value */
64#define CLK_RTC_32K_CLK 32768u /* RTC oscillator 32 kHz output (32k_clk */
65#define CLK_FRO_12MHZ 12000000u /* FRO 12 MHz (fro_12m) */
66#define CLK_FRO_48MHZ 48000000u /* FRO 48 MHz (fro_48m) */
67#define CLK_FRO_96MHZ 96000000u /* FRO 96 MHz (fro_96m) */
68#define CLK_CLK_IN 0u /* Default CLK_IN pin clock */
69
70/**
71 * @brief System clock frequency (core clock)
72 *
73 * The system clock frequency supplied to the SysTick timer and the processor
74 * core clock. This variable can be used by the user application to setup the
75 * SysTick timer or configure other parameters. It may also be used by debugger to
76 * query the frequency of the debug timer or configure the trace clock speed
77 * SystemCoreClock is initialized with a correct predefined value.
78 */
79extern uint32_t SystemCoreClock;
80
81/**
82 * @brief Setup the microcontroller system.
83 *
84 * Typically this function configures the oscillator (PLL) that is part of the
85 * microcontroller device. For systems with variable clock speed it also updates
86 * the variable SystemCoreClock. SystemInit is called from startup_device file.
87 */
88void SystemInit(void);
89
90/**
91 * @brief Updates the SystemCoreClock variable.
92 *
93 * It must be called whenever the core clock is changed during program
94 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
95 * the current core clock.
96 */
97void SystemCoreClockUpdate(void);
98
99/**
100 * @brief SystemInit function hook.
101 *
102 * This weak function allows to call specific initialization code during the
103 * SystemInit() execution.This can be used when an application specific code needs
104 * to be called as close to the reset entry as possible (for example the Multicore
105 * Manager MCMGR_EarlyInit() function call).
106 * NOTE: No global r/w variables can be used in this hook function because the
107 * initialization of these variables happens after this function.
108 */
109void SystemInitHook(void);
110
111#ifdef __cplusplus
112}
113#endif
114
115#endif /* _SYSTEM_LPC54005_H_ */