1 /* 2 ** ################################################################### 3 ** Processor: K32L3A60VPJ1A_cm0plus 4 ** Compilers: GNU C Compiler 5 ** IAR ANSI C/C++ Compiler for ARM 6 ** Keil ARM C/C++ Compiler 7 ** MCUXpresso Compiler 8 ** 9 ** Reference manual: K32L3ARM, Rev. 0 , 05/2019 10 ** Version: rev. 1.0, 2019-04-22 11 ** Build: b201013 12 ** 13 ** Abstract: 14 ** Provides a system configuration function and a global variable that 15 ** contains the system frequency. It configures the device and initializes 16 ** the oscillator (PLL) that is part of the microcontroller device. 17 ** 18 ** Copyright 2016 Freescale Semiconductor, Inc. 19 ** Copyright 2016-2020 NXP 20 ** All rights reserved. 21 ** 22 ** SPDX-License-Identifier: BSD-3-Clause 23 ** 24 ** http: www.nxp.com 25 ** mail: support@nxp.com 26 ** 27 ** Revisions: 28 ** - rev. 1.0 (2019-04-22) 29 ** Initial version. 30 ** 31 ** ################################################################### 32 */ 33 34 /*! 35 * @file K32L3A60_cm0plus 36 * @version 1.0 37 * @date 2019-04-22 38 * @brief Device specific configuration file for K32L3A60_cm0plus (header file) 39 * 40 * Provides a system configuration function and a global variable that contains 41 * the system frequency. It configures the device and initializes the oscillator 42 * (PLL) that is part of the microcontroller device. 43 */ 44 45 #ifndef _SYSTEM_K32L3A60_cm0plus_H_ 46 #define _SYSTEM_K32L3A60_cm0plus_H_ /**< Symbol preventing repeated inclusion */ 47 48 #ifdef __cplusplus 49 extern "C" { 50 #endif 51 52 #include <stdint.h> 53 54 55 #ifndef DISABLE_WDOG 56 #define DISABLE_WDOG 1 57 #endif 58 59 /* Define clock source values */ 60 #define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */ 61 62 /* Low power mode enable */ 63 /* SMC_PMPROT: AHSRUN=1, AVLP=1,ALLS=1,AVLLS=0x3 */ 64 #define SYSTEM_SMC_PMPROT_VALUE 0xABu /* SMC_PMPROT */ 65 #define SYSTEM_SMC_PMCTRL_VALUE 0x0u /* SMC_PMCTRL */ 66 67 #define DEFAULT_SYSTEM_CLOCK 48000000u /* Default System clock value */ 68 69 70 71 /** 72 * @brief System clock frequency (core clock) 73 * 74 * The system clock frequency supplied to the SysTick timer and the processor 75 * core clock. This variable can be used by the user application to setup the 76 * SysTick timer or configure other parameters. It may also be used by debugger to 77 * query the frequency of the debug timer or configure the trace clock speed 78 * SystemCoreClock is initialized with a correct predefined value. 79 */ 80 extern uint32_t SystemCoreClock; 81 82 /** 83 * @brief Setup the microcontroller system. 84 * 85 * Typically this function configures the oscillator (PLL) that is part of the 86 * microcontroller device. For systems with variable clock speed it also updates 87 * the variable SystemCoreClock. SystemInit is called from startup_device file. 88 */ 89 void SystemInit (void); 90 91 /** 92 * @brief Updates the SystemCoreClock variable. 93 * 94 * It must be called whenever the core clock is changed during program 95 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 96 * the current core clock. 97 */ 98 void SystemCoreClockUpdate (void); 99 100 /** 101 * @brief SystemInit function hook. 102 * 103 * This weak function allows to call specific initialization code during the 104 * SystemInit() execution.This can be used when an application specific code needs 105 * to be called as close to the reset entry as possible (for example the Multicore 106 * Manager MCMGR_EarlyInit() function call). 107 * NOTE: No global r/w variables can be used in this hook function because the 108 * initialization of these variables happens after this function. 109 */ 110 void SystemInitHook (void); 111 112 #ifdef __cplusplus 113 } 114 #endif 115 116 #endif /* _SYSTEM_K32L3A60_cm0plus_H_ */ 117
