1 /* 2 ** ################################################################### 3 ** Processors: MKL27Z32VDA4 4 ** MKL27Z32VFM4 5 ** MKL27Z32VFT4 6 ** MKL27Z32VLH4 7 ** MKL27Z32VMP4 8 ** MKL27Z64VDA4 9 ** MKL27Z64VFM4 10 ** MKL27Z64VFT4 11 ** MKL27Z64VLH4 12 ** MKL27Z64VMP4 13 ** 14 ** Compilers: Keil ARM C/C++ Compiler 15 ** Freescale C/C++ for Embedded ARM 16 ** GNU C Compiler 17 ** IAR ANSI C/C++ Compiler for ARM 18 ** MCUXpresso Compiler 19 ** 20 ** Reference manual: KL27P64M48SF2RM, Rev. 1, Sep 2014 21 ** Version: rev. 1.6, 2016-06-24 22 ** Build: b180801 23 ** 24 ** Abstract: 25 ** Provides a system configuration function and a global variable that 26 ** contains the system frequency. It configures the device and initializes 27 ** the oscillator (PLL) that is part of the microcontroller device. 28 ** 29 ** Copyright 2016 Freescale Semiconductor, Inc. 30 ** Copyright 2016-2018 NXP 31 ** 32 ** SPDX-License-Identifier: BSD-3-Clause 33 ** 34 ** http: www.nxp.com 35 ** mail: support@nxp.com 36 ** 37 ** Revisions: 38 ** - rev. 1.0 (2014-05-12) 39 ** Initial version. 40 ** - rev. 1.1 (2014-07-10) 41 ** UART0 - UART0 module renamed to UART2. 42 ** - rev. 1.2 (2014-08-12) 43 ** CRC - CRC register renamed to DATA. 44 ** - rev. 1.3 (2014-09-02) 45 ** USB - USB0_CTL0 was renamed to USB0_OTGCTL register. 46 ** USB - USB0_CTL1 was renamed to USB0_CTL register. 47 ** USB - Two new bitfields (STOP_ACK_DLY_EN, AHB_DLY_EN) was added to the USB0_KEEP_ALIVE_CTRL register. 48 ** - rev. 1.4 (2014-09-22) 49 ** FLEXIO - Offsets of the SHIFTBUFBIS registers were interchanged with offsets of the SHIFTBUFBBS registers. 50 ** SIM - Changed bitfield value MCGIRCLK to LIRC_CLK of bitfield CLKOUTSEL in SOPT2 register. 51 ** SIM - Removed bitfield DIEID in SDID register. 52 ** UART2 - Removed ED register. 53 ** UART2 - Removed MODEM register. 54 ** UART2 - Removed IR register. 55 ** UART2 - Removed PFIFO register. 56 ** UART2 - Removed CFIFO register. 57 ** UART2 - Removed SFIFO register. 58 ** UART2 - Removed TWFIFO register. 59 ** UART2 - Removed TCFIFO register. 60 ** UART2 - Removed RWFIFO register. 61 ** UART2 - Removed RCFIFO register. 62 ** USB - Removed bitfield REG_EN in CLK_RECOVER_IRC_EN register. 63 ** USB - Renamed USBEN bitfield of USB0_CTL was renamed to USBENSOFEN. 64 ** - rev. 1.5 (2016-02-02) 65 ** FGPIO - Add FGPIO registers. 66 ** - rev. 1.6 (2016-06-24) 67 ** USB - OTGCTL register was removed. 68 ** USB - Bit RESUME was added in CTL register. 69 ** 70 ** ################################################################### 71 */ 72 73 /*! 74 * @file MKL27Z644 75 * @version 1.6 76 * @date 2016-06-24 77 * @brief Device specific configuration file for MKL27Z644 (header file) 78 * 79 * Provides a system configuration function and a global variable that contains 80 * the system frequency. It configures the device and initializes the oscillator 81 * (PLL) that is part of the microcontroller device. 82 */ 83 84 #ifndef _SYSTEM_MKL27Z644_H_ 85 #define _SYSTEM_MKL27Z644_H_ /**< Symbol preventing repeated inclusion */ 86 87 #ifdef __cplusplus 88 extern "C" { 89 #endif 90 91 #include <stdint.h> 92 93 94 #ifndef DISABLE_WDOG 95 #define DISABLE_WDOG 1 96 #endif 97 98 #ifndef ACK_ISOLATION 99 #define ACK_ISOLATION 1 100 #endif 101 102 /* Define clock source values */ 103 104 #define CPU_XTAL_CLK_HZ 32768u /* Value of the external crystal or oscillator clock frequency in Hz */ 105 #define CPU_INT_FAST_CLK_HZ 48000000u /* Value of the fast internal oscillator clock frequency in Hz */ 106 #define CPU_INT_IRC_CLK_HZ 48000000u /* Value of the 48M internal oscillator clock frequency in Hz */ 107 108 /* Low power mode enable */ 109 /* SMC_PMPROT: AVLP=1,AVLLS=1 */ 110 #define SYSTEM_SMC_PMPROT_VALUE 0x2Au /* SMC_PMPROT */ 111 112 #define DEFAULT_SYSTEM_CLOCK 8000000u /* Default System clock value */ 113 #define CPU_INT_SLOW_CLK_HZ 8000000u /* Value of the slow internal oscillator clock frequency in Hz */ 114 115 116 /** 117 * @brief System clock frequency (core clock) 118 * 119 * The system clock frequency supplied to the SysTick timer and the processor 120 * core clock. This variable can be used by the user application to setup the 121 * SysTick timer or configure other parameters. It may also be used by debugger to 122 * query the frequency of the debug timer or configure the trace clock speed 123 * SystemCoreClock is initialized with a correct predefined value. 124 */ 125 extern uint32_t SystemCoreClock; 126 127 /** 128 * @brief Setup the microcontroller system. 129 * 130 * Typically this function configures the oscillator (PLL) that is part of the 131 * microcontroller device. For systems with variable clock speed it also updates 132 * the variable SystemCoreClock. SystemInit is called from startup_device file. 133 */ 134 void SystemInit (void); 135 136 /** 137 * @brief Updates the SystemCoreClock variable. 138 * 139 * It must be called whenever the core clock is changed during program 140 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates 141 * the current core clock. 142 */ 143 void SystemCoreClockUpdate (void); 144 145 /** 146 * @brief SystemInit function hook. 147 * 148 * This weak function allows to call specific initialization code during the 149 * SystemInit() execution.This can be used when an application specific code needs 150 * to be called as close to the reset entry as possible (for example the Multicore 151 * Manager MCMGR_EarlyInit() function call). 152 * NOTE: No global r/w variables can be used in this hook function because the 153 * initialization of these variables happens after this function. 154 */ 155 void SystemInitHook (void); 156 157 #ifdef __cplusplus 158 } 159 #endif 160 161 #endif /* _SYSTEM_MKL27Z644_H_ */ 162
