1 /* 2 ** ################################################################### 3 ** Processors: MIMXRT1176AVM8A_cm7 4 ** MIMXRT1176CVM8A_cm7 5 ** MIMXRT1176DVMAA_cm7 6 ** 7 ** Compilers: Freescale C/C++ for Embedded ARM 8 ** GNU C Compiler 9 ** IAR ANSI C/C++ Compiler for ARM 10 ** Keil ARM C/C++ Compiler 11 ** MCUXpresso Compiler 12 ** 13 ** Reference manual: IMXRT1170RM, Rev 1, 02/2021 14 ** Version: rev. 1.0, 2020-12-29 15 ** Build: b210402 16 ** 17 ** Abstract: 18 ** Provides a system configuration function and a global variable that 19 ** contains the system frequency. It configures the device and initializes 20 ** the oscillator (PLL) that is part of the microcontroller device. 21 ** 22 ** Copyright 2016 Freescale Semiconductor, Inc. 23 ** Copyright 2016-2021 NXP 24 ** All rights reserved. 25 ** 26 ** SPDX-License-Identifier: BSD-3-Clause 27 ** 28 ** http: www.nxp.com 29 ** mail: support@nxp.com 30 ** 31 ** Revisions: 32 ** - rev. 0.1 (2018-03-05) 33 ** Initial version. 34 ** - rev. 1.0 (2020-12-29) 35 ** Update header files to align with IMXRT1170RM Rev.0. 36 ** 37 ** ################################################################### 38 */ 39 40 /*! 41 * @file MIMXRT1176_cm7 42 * @version 1.0 43 * @date 2021-04-02 44 * @brief Device specific configuration file for MIMXRT1176_cm7 (header file) 45 * 46 * Provides a system configuration function and a global variable that contains 47 * the system frequency. It configures the device and initializes the oscillator 48 * (PLL) that is part of the microcontroller device. 49 */ 50 51 #ifndef _SYSTEM_MIMXRT1176_cm7_H_ 52 #define _SYSTEM_MIMXRT1176_cm7_H_ /**< Symbol preventing repeated inclusion */ 53 54 #ifdef __cplusplus 55 extern "C" { 56 #endif 57 58 #include <stdint.h> 59 60 61 #ifndef DISABLE_WDOG 62 #define DISABLE_WDOG 1 63 #endif 64 65 /* Define clock source values */ 66 67 #define CPU_XTAL_CLK_HZ 24000000UL /* Value of the external crystal or oscillator clock frequency in Hz */ 68 69 #define CPU_CLK1_HZ 0UL /* Value of the CLK1 (select the CLK1_N/CLK1_P as source) frequency in Hz */ 70 /* If CLOCK1_P,CLOCK1_N is choose as the pll bypass clock source, please implement the CLKPN_FREQ define, otherwise 0 will be returned. */ 71 72 #define DEFAULT_SYSTEM_CLOCK 528000000UL /* 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_MIMXRT1176_cm7_H_ */ 121
