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1/*
2** ###################################################################
3** Processors: MCIMX7U3CVP06
4** MCIMX7U3DVK07
5**
6** Compilers: GNU C Compiler
7** IAR ANSI C/C++ Compiler for ARM
8** Keil ARM C/C++ Compiler
9**
10** Reference manual: IMX7ULPRM, Rev. 0, Nov. 2018
11** Version: rev. 7.0, 2018-11-05
12** Build: b200408
13**
14** Abstract:
15** Provides a system configuration function and a global variable that
16** contains the system frequency. It configures the device and initializes
17** the oscillator (PLL) that is part of the microcontroller device.
18**
19** Copyright 2016 Freescale Semiconductor, Inc.
20** Copyright 2016-2020 NXP
21** All rights reserved.
22**
23** SPDX-License-Identifier: BSD-3-Clause
24**
25** http: www.nxp.com
26** mail: [email protected]
27**
28** Revisions:
29** - rev. 1.0 (2016-04-13)
30** Initial version.
31** - rev. 2.0 (2016-07-19)
32** RevC Header ER
33** - rev. 3.0 (2017-02-28)
34** RevD Header ER
35** - rev. 4.0 (2017-05-02)
36** RevE Header ER
37** - rev. 5.0 (2017-12-22)
38** RevA(B0) Header GA
39** - rev. 6.0 (2018-02-01)
40** RevB(B0) Header GA
41** - rev. 7.0 (2018-11-05)
42** RevA(B1) Header
43**
44** ###################################################################
45*/
46
47/*!
48 * @file MCIMX7U3_cm4
49 * @version 7.0
50 * @date 2018-11-05
51 * @brief Device specific configuration file for MCIMX7U3_cm4 (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_MCIMX7U3_cm4_H_
59#define _SYSTEM_MCIMX7U3_cm4_H_ /**< Symbol preventing repeated inclusion */
60
61#ifdef __cplusplus
62extern "C" {
63#endif
64
65#include <stdint.h>
66
67
68
69/* i.MX7ULP Definitions */
70#ifndef DISABLE_WDOG
71 #define DISABLE_WDOG 1
72#endif
73/* Define clock source values */
74#define CPU_XTAL_SOSC_CLK_HZ 24000000u /* Value of the external System Oscillator Clock(SOSC) frequency in Hz */
75#define CPU_XTAL_LVDS_CLK_HZ 24000000u /* Value of the external LVDS Clock frequency in Hz */
76#define DEFAULT_SYSTEM_CLOCK 100000000u /* Default System clock value */
77
78
79/**
80 * @brief System clock frequency (core clock)
81 *
82 * The system clock frequency supplied to the SysTick timer and the processor
83 * core clock. This variable can be used by the user application to setup the
84 * SysTick timer or configure other parameters. It may also be used by debugger to
85 * query the frequency of the debug timer or configure the trace clock speed
86 * SystemCoreClock is initialized with a correct predefined value.
87 */
88extern uint32_t SystemCoreClock;
89
90/**
91 * @brief Setup the microcontroller system.
92 *
93 * Typically this function configures the oscillator (PLL) that is part of the
94 * microcontroller device. For systems with variable clock speed it also updates
95 * the variable SystemCoreClock. SystemInit is called from startup_device file.
96 */
97void SystemInit (void);
98
99/**
100 * @brief Updates the SystemCoreClock variable.
101 *
102 * It must be called whenever the core clock is changed during program
103 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
104 * the current core clock.
105 */
106void SystemCoreClockUpdate (void);
107
108/**
109 * @brief SystemInit function hook.
110 *
111 * This weak function allows to call specific initialization code during the
112 * SystemInit() execution.This can be used when an application specific code needs
113 * to be called as close to the reset entry as possible (for example the Multicore
114 * Manager MCMGR_EarlyInit() function call).
115 * NOTE: No global r/w variables can be used in this hook function because the
116 * initialization of these variables happens after this function.
117 */
118void SystemInitHook (void);
119
120#ifdef __cplusplus
121}
122#endif
123
124#endif /* _SYSTEM_MCIMX7U3_cm4_H_ */