1 /*
2 ** ###################################################################
3 **     Processors:          MIMX9352AVTXM_ca55
4 **                          MIMX9352CVVXM_ca55
5 **                          MIMX9352DVVXM_ca55
6 **                          MIMX9352XVVXM_ca55
7 **
8 **     Compilers:           GNU C Compiler
9 **                          IAR ANSI C/C++ Compiler for ARM
10 **                          Keil ARM C/C++ Compiler
11 **
12 **     Reference manual:    IMX93RM, Internal, November. 2021
13 **     Version:             rev. 1.0, 2021-11-16
14 **     Build:               b240718
15 **
16 **     Abstract:
17 **         Provides a system configuration function and a global variable that
18 **         contains the system frequency. It configures the device and initializes
19 **         the oscillator (PLL) that is part of the microcontroller device.
20 **
21 **     Copyright 2016 Freescale Semiconductor, Inc.
22 **     Copyright 2016-2024 NXP
23 **     SPDX-License-Identifier: BSD-3-Clause
24 **
25 **     http:                 www.nxp.com
26 **     mail:                 support@nxp.com
27 **
28 **     Revisions:
29 **     - rev. 1.0 (2021-11-16)
30 **         Initial version.
31 **
32 ** ###################################################################
33 */
34 
35 /*!
36  * @file MIMX9352_ca55
37  * @version 1.0
38  * @date 180724
39  * @brief Device specific configuration file for MIMX9352_ca55 (header file)
40  *
41  * Provides a system configuration function and a global variable that contains
42  * the system frequency. It configures the device and initializes the oscillator
43  * (PLL) that is part of the microcontroller device.
44  */
45 #ifndef _SYSTEM_MIMX9352_ca55_H_
46 #define _SYSTEM_MIMX9352_ca55_H_                    /**< Symbol preventing repeated inclusion */
47 
48 #ifdef __cplusplus
49 extern "C" {
50 #endif
51 
52 #include <stdint.h>
53 
54 /* Define clock source values */
55 #define DEFAULT_SYSTEM_CLOCK   24000000U /* Default System clock value */
56 
57 /**
58  * @brief System clock frequency (core clock)
59  *
60  * The system clock frequency supplied to the SysTick timer and the processor
61  * core clock. This variable can be used by the user application to setup the
62  * SysTick timer or configure other parameters. It may also be used by debugger to
63  * query the frequency of the debug timer or configure the trace clock speed
64  * SystemCoreClock is initialized with a correct predefined value.
65  */
66 extern uint32_t SystemCoreClock;
67 
68 /**
69  * @brief Setup the microcontroller system.
70  *
71  * Typically this function configures the oscillator (PLL) that is part of the
72  * microcontroller device. For systems with variable clock speed it also updates
73  * the variable SystemCoreClock. SystemInit is called from startup_device file.
74  */
75 void SystemInit (void);
76 
77 /**
78  * @brief Updates the SystemCoreClock variable.
79  *
80  * It must be called whenever the core clock is changed during program
81  * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
82  * the current core clock.
83  */
84 void SystemCoreClockUpdate (void);
85 
86 /**
87  * @brief SystemInit function hook.
88  *
89  * This weak function allows to call specific initialization code during the
90  * SystemInit() execution.This can be used when an application specific code needs
91  * to be called as close to the reset entry as possible (for example the Multicore
92  * Manager MCMGR_EarlyInit() function call).
93  * NOTE: No global r/w variables can be used in this hook function because the
94  * initialization of these variables happens after this function.
95  */
96 void SystemInitHook (void);
97 
98 #ifdef __cplusplus
99 }
100 #endif
101 
102 #endif  /* _SYSTEM_MIMX9352_ca55_H_ */
103