1 /*
2 ** ###################################################################
3 **     Processors:          MIMXRT1011CAE4A
4 **                          MIMXRT1011DAE5A
5 **
6 **     Compilers:           Freescale C/C++ for Embedded ARM
7 **                          GNU C Compiler
8 **                          IAR ANSI C/C++ Compiler for ARM
9 **                          Keil ARM C/C++ Compiler
10 **                          MCUXpresso Compiler
11 **
12 **     Reference manual:    IMXRT1010RM Rev.1, 10/2021 | IMXRT1010SRM Rev.0
13 **     Version:             rev. 1.2, 2021-08-10
14 **     Build:               b210810
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 2016-2021 NXP
23 **     All rights reserved.
24 **
25 **     SPDX-License-Identifier: BSD-3-Clause
26 **
27 **     http:                 www.nxp.com
28 **     mail:                 support@nxp.com
29 **
30 **     Revisions:
31 **     - rev. 0.1 (2019-02-14)
32 **         Initial version.
33 **     - rev. 1.0 (2019-08-01)
34 **         Rev.0 Header GA
35 **     - rev. 1.1 (2019-08-06)
36 **         Update header files to align with IMXRT1010RM Rev.B.
37 **     - rev. 1.2 (2021-08-10)
38 **         Update header files to align with IMXRT1010RM Rev.1.
39 **
40 ** ###################################################################
41 */
42 
43 /*!
44  * @file MIMXRT1011
45  * @version 1.2
46  * @date 2021-08-10
47  * @brief Device specific configuration file for MIMXRT1011 (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_MIMXRT1011_H_
55 #define _SYSTEM_MIMXRT1011_H_                    /**< Symbol preventing repeated inclusion */
56 
57 #ifdef __cplusplus
58 extern "C" {
59 #endif
60 
61 #include <stdint.h>
62 
63 
64 #ifndef DISABLE_WDOG
65   #define DISABLE_WDOG                 1
66 #endif
67 
68 /* Define clock source values */
69 
70 #define CPU_XTAL_CLK_HZ                24000000UL          /* Value of the external crystal or oscillator clock frequency in Hz */
71 
72 #define DEFAULT_SYSTEM_CLOCK           297000000UL         /* Default System clock value */
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  */
84 extern 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  */
93 void 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  */
102 void 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  */
114 void SystemInitHook (void);
115 
116 #ifdef __cplusplus
117 }
118 #endif
119 
120 #endif  /* _SYSTEM_MIMXRT1011_H_ */
121