/* ** ################################################################### ** Processors: MKS22FN128VFT12 ** MKS22FN128VLH12 ** MKS22FN128VLL12 ** MKS22FN256VFT12 ** MKS22FN256VLH12 ** MKS22FN256VLL12 ** ** Compilers: Keil ARM C/C++ Compiler ** Freescale C/C++ for Embedded ARM ** GNU C Compiler ** IAR ANSI C/C++ Compiler for ARM ** MCUXpresso Compiler ** ** Reference manual: KS22P100M120SF0RM, Rev. 3, May, 2016 ** Version: rev. 2.1, 2017-06-09 ** Build: b171226 ** ** Abstract: ** Provides a system configuration function and a global variable that ** contains the system frequency. It configures the device and initializes ** the oscillator (PLL) that is part of the microcontroller device. ** ** The Clear BSD License ** Copyright 2016 Freescale Semiconductor, Inc. ** Copyright 2016-2017 NXP ** All rights reserved. ** ** Redistribution and use in source and binary forms, with or without ** modification, are permitted (subject to the limitations in the ** disclaimer below) provided that the following conditions are met: ** ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** ** * Neither the name of the copyright holder nor the names of its ** contributors may be used to endorse or promote products derived from ** this software without specific prior written permission. ** ** NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE ** GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT ** HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE ** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN ** IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ** ** http: www.nxp.com ** mail: support@nxp.com ** ** Revisions: ** - rev. 1.0 (2015-06-23) ** Initial version. ** - rev. 2.0 (2015-10-10) ** Update according to Rev1 RM, Sep 2015. ** - rev. 2.1 (2017-06-09) ** Update according to Rev3 RM, May 2016. ** ** ################################################################### */ /*! * @file MKS22F12 * @version 2.1 * @date 2017-06-09 * @brief Device specific configuration file for MKS22F12 (header file) * * Provides a system configuration function and a global variable that contains * the system frequency. It configures the device and initializes the oscillator * (PLL) that is part of the microcontroller device. */ #ifndef _SYSTEM_MKS22F12_H_ #define _SYSTEM_MKS22F12_H_ /**< Symbol preventing repeated inclusion */ #ifdef __cplusplus extern "C" { #endif #include #ifndef DISABLE_WDOG #define DISABLE_WDOG 1 #endif /* Define clock source values */ #define CPU_XTAL_CLK_HZ 8000000u /* Value of the external crystal or oscillator clock frequency in Hz */ #define CPU_XTAL32k_CLK_HZ 32768u /* Value of the external 32k crystal or oscillator clock frequency in Hz */ #define CPU_INT_SLOW_CLK_HZ 32768u /* Value of the slow internal oscillator clock frequency in Hz */ #define CPU_INT_FAST_CLK_HZ 4000000u /* Value of the fast internal oscillator clock frequency in Hz */ #define CPU_INT_IRC_CLK_HZ 48000000u /* Value of the 48M internal oscillator clock frequency in Hz */ /* RTC oscillator setting */ /* RTC_CR: SC2P=0,SC4P=0,SC8P=0,SC16P=0,CLKO=1,OSCE=1,WPS=0,UM=0,SUP=0,WPE=0,SWR=0 */ #define SYSTEM_RTC_CR_VALUE 0x0300U /* RTC_CR */ /* Low power mode enable */ /* SMC_PMPROT: AHSRUN=1,AVLP=1,ALLS=1,AVLLS=1 */ #define SYSTEM_SMC_PMPROT_VALUE 0xAAU /* SMC_PMPROT */ #define DEFAULT_SYSTEM_CLOCK 20971520u /* Default System clock value */ /** * @brief System clock frequency (core clock) * * The system clock frequency supplied to the SysTick timer and the processor * core clock. This variable can be used by the user application to setup the * SysTick timer or configure other parameters. It may also be used by debugger to * query the frequency of the debug timer or configure the trace clock speed * SystemCoreClock is initialized with a correct predefined value. */ extern uint32_t SystemCoreClock; /** * @brief Setup the microcontroller system. * * Typically this function configures the oscillator (PLL) that is part of the * microcontroller device. For systems with variable clock speed it also updates * the variable SystemCoreClock. SystemInit is called from startup_device file. */ void SystemInit (void); /** * @brief Updates the SystemCoreClock variable. * * It must be called whenever the core clock is changed during program * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates * the current core clock. */ void SystemCoreClockUpdate (void); /** * @brief SystemInit function hook. * * This weak function allows to call specific initialization code during the * SystemInit() execution.This can be used when an application specific code needs * to be called as close to the reset entry as possible (for example the Multicore * Manager MCMGR_EarlyInit() function call). * NOTE: No global r/w variables can be used in this hook function because the * initialization of these variables happens after this function. */ void SystemInitHook (void); #ifdef __cplusplus } #endif #endif /* _SYSTEM_MKS22F12_H_ */