1 /* 2 ** ################################################################### 3 ** Processors: K32L2A41VLH1A 4 ** K32L2A41VLL1A 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: K32L2AxRM, Rev. 1, 12/2019 13 ** Version: rev. 1.0, 2019-10-30 14 ** Build: b201013 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 2016-2020 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. 1.0 (2019-10-30) 32 ** Initial version. 33 ** 34 ** ################################################################### 35 */ 36 37 /*! 38 * @file K32L2A41A 39 * @version 1.0 40 * @date 2019-10-30 41 * @brief Device specific configuration file for K32L2A41A (header file) 42 * 43 * Provides a system configuration function and a global variable that contains 44 * the system frequency. It configures the device and initializes the oscillator 45 * (PLL) that is part of the microcontroller device. 46 */ 47 48 #ifndef _SYSTEM_K32L2A41A_H_ 49 #define _SYSTEM_K32L2A41A_H_ /**< Symbol preventing repeated inclusion */ 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 #include <stdint.h> 56 57 #ifndef DISABLE_WDOG 58 #define DISABLE_WDOG 1 59 #endif 60 61 /* Define clock source values */ 62 #define CPU_XTAL_CLK_HZ 8000000u 63 64 /* Low power mode enable */ 65 /* SMC_PMPROT: AVLP=1,AVLLS=1 */ 66 #define SYSTEM_SMC_PMPROT_VALUE 0x2Au /* SMC_PMPROT */ 67 #define SYSTEM_SMC_PMCTRL_VALUE 0x0u /* SMC_PMCTRL */ 68 69 #define DEFAULT_SYSTEM_CLOCK 8000000u /* Default System clock value */ 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_K32L2A41A_H_ */ 117
