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.0, 09/2019 13 ** Version: rev. 1.1, 2019-08-06 14 ** Build: b191119 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 2016-2019 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 ** 38 ** ################################################################### 39 */ 40 41 /*! 42 * @file MIMXRT1011 43 * @version 1.1 44 * @date 2019-08-06 45 * @brief Device specific configuration file for MIMXRT1011 (header file) 46 * 47 * Provides a system configuration function and a global variable that contains 48 * the system frequency. It configures the device and initializes the oscillator 49 * (PLL) that is part of the microcontroller device. 50 */ 51 52 #ifndef _SYSTEM_MIMXRT1011_H_ 53 #define _SYSTEM_MIMXRT1011_H_ /**< Symbol preventing repeated inclusion */ 54 55 #ifdef __cplusplus 56 extern "C" { 57 #endif 58 59 #include <stdint.h> 60 61 62 #ifndef DISABLE_WDOG 63 #define DISABLE_WDOG 1 64 #endif 65 66 /* Define clock source values */ 67 68 #define CPU_XTAL_CLK_HZ 24000000UL /* Value of the external crystal or oscillator clock frequency in Hz */ 69 70 #define DEFAULT_SYSTEM_CLOCK 297000000UL /* Default System clock value */ 71 72 73 /** 74 * @brief System clock frequency (core clock) 75 * 76 * The system clock frequency supplied to the SysTick timer and the processor 77 * core clock. This variable can be used by the user application to setup the 78 * SysTick timer or configure other parameters. It may also be used by debugger to 79 * query the frequency of the debug timer or configure the trace clock speed 80 * SystemCoreClock is initialized with a correct predefined value. 81 */ 82 extern uint32_t SystemCoreClock; 83 84 /** 85 * @brief Setup the microcontroller system. 86 * 87 * Typically this function configures the oscillator (PLL) that is part of the 88 * microcontroller device. For systems with variable clock speed it also updates 89 * the variable SystemCoreClock. SystemInit is called from startup_device file. 90 */ 91 void SystemInit (void); 92 93 /** 94 * @brief Updates the SystemCoreClock variable. 95 * 96 * It must be called whenever the core clock is changed during program 97 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 98 * the current core clock. 99 */ 100 void SystemCoreClockUpdate (void); 101 102 /** 103 * @brief SystemInit function hook. 104 * 105 * This weak function allows to call specific initialization code during the 106 * SystemInit() execution.This can be used when an application specific code needs 107 * to be called as close to the reset entry as possible (for example the Multicore 108 * Manager MCMGR_EarlyInit() function call). 109 * NOTE: No global r/w variables can be used in this hook function because the 110 * initialization of these variables happens after this function. 111 */ 112 void SystemInitHook (void); 113 114 #ifdef __cplusplus 115 } 116 #endif 117 118 #endif /* _SYSTEM_MIMXRT1011_H_ */ 119
