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