1 /*
2 ** ###################################################################
3 **     Processors:          MCXN947VDF_cm33_core1
4 **                          MCXN947VNL_cm33_core1
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:    MCXNx4x Reference Manual
12 **     Version:             rev. 2.0, 2023-02-01
13 **     Build:               b231219
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 2016-2023 NXP
22 **     SPDX-License-Identifier: BSD-3-Clause
23 **
24 **     http:                 www.nxp.com
25 **     mail:                 support@nxp.com
26 **
27 **     Revisions:
28 **     - rev. 1.0 (2022-10-01)
29 **         Initial version
30 **     - rev. 2.0 (2023-02-01)
31 **         Initial version based on Rev. 2 Draft B
32 **
33 ** ###################################################################
34 */
35 
36 /*!
37  * @file MCXN947_cm33_core1
38  * @version 2.0
39  * @date 2023-02-01
40  * @brief Device specific configuration file for MCXN947_cm33_core1 (header file)
41  *
42  * Provides a system configuration function and a global variable that contains
43  * the system frequency. It configures the device and initializes the oscillator
44  * (PLL) that is part of the microcontroller device.
45  */
46 
47 #ifndef _SYSTEM_MCXN947_cm33_core1_H_
48 #define _SYSTEM_MCXN947_cm33_core1_H_            /**< Symbol preventing repeated inclusion */
49 
50 #ifdef __cplusplus
51 extern "C" {
52 #endif
53 
54 #include <stdint.h>
55 
56 
57                 #define DEFAULT_SYSTEM_CLOCK           48000000u           /* Default System clock value */
58 #define CLK_FRO_12MHZ                  12000000u           /* FRO 12  MHz (fro_12m)  */
59 #define CLK_FRO_144MHZ                144000000u           /* FRO 144 MHz (fro_144m) */
60 
61 
62 
63 /**
64  * @brief System clock frequency (core clock)
65  *
66  * The system clock frequency supplied to the SysTick timer and the processor
67  * core clock. This variable can be used by the user application to setup the
68  * SysTick timer or configure other parameters. It may also be used by debugger to
69  * query the frequency of the debug timer or configure the trace clock speed
70  * SystemCoreClock is initialized with a correct predefined value.
71  */
72 extern uint32_t SystemCoreClock;
73 
74 /**
75  * @brief Setup the microcontroller system.
76  *
77  * Typically this function configures the oscillator (PLL) that is part of the
78  * microcontroller device. For systems with variable clock speed it also updates
79  * the variable SystemCoreClock. SystemInit is called from startup_device file.
80  */
81 void SystemInit (void);
82 
83 /**
84  * @brief Updates the SystemCoreClock variable.
85  *
86  * It must be called whenever the core clock is changed during program
87  * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
88  * the current core clock.
89  */
90 void SystemCoreClockUpdate (void);
91 
92 /**
93  * @brief SystemInit function hook.
94  *
95  * This weak function allows to call specific initialization code during the
96  * SystemInit() execution.This can be used when an application specific code needs
97  * to be called as close to the reset entry as possible (for example the Multicore
98  * Manager MCMGR_EarlyInit() function call).
99  * NOTE: No global r/w variables can be used in this hook function because the
100  * initialization of these variables happens after this function.
101  */
102 void SystemInitHook (void);
103 
104 #ifdef __cplusplus
105 }
106 #endif
107 
108 #endif  /* _SYSTEM_MCXN947_cm33_core1_H_ */
109