/* ** ################################################################### ** Processors: MK22FN1M0VLH12 ** MK22FN1M0VLK12 ** MK22FN1M0VLL12 ** MK22FN1M0VLQ12 ** MK22FN1M0VMC12 ** MK22FN1M0VMD12 ** MK22FX512VLH12 ** MK22FX512VLK12 ** MK22FX512VLL12 ** MK22FX512VLQ12 ** MK22FX512VMC12 ** MK22FX512VMD12 ** ** 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 manuals: K22P100M120SF5V2RM, Rev.5, March 2015 ** K22P121M120SF5V2RM, Rev.5, March 2015 ** K22P144M120SF5V2RM, Rev.5, March 2015 ** K22P64M120SF5V2RM, Rev.5, March 2015 ** K22P80M120SF5V2RM, Rev.5, March 2015 ** ** Version: rev. 1.8, 2015-02-19 ** Build: b170713 ** ** 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: ** ** 1. Redistributions of source code must retain the above copyright notice, this list ** of conditions and the following disclaimer. ** ** 2. 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. ** ** 3. 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 (2012-06-06) ** Initial version. ** - rev. 1.1 (2012-11-12) ** Update according to reference manual rev.1, draft B ** - rev. 1.2 (2012-12-04) ** Update according to reference manual rev.1 ** - rev. 1.3 (2013-03-11) ** System initialization updated to add 120MHz clock option. ** - rev. 1.4 (2013-04-05) ** Changed start of doxygen comment. ** - rev. 1.5 (2013-05-16) ** Update according to reference manual rev.2 ** - rev. 1.6 (2013-10-29) ** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled. ** Access restriction of some registers fixed. ** - rev. 1.7 (2014-02-18) ** UART0 module - LON registers removed. ** - rev. 1.8 (2015-02-19) ** update of SystemInit() imlementation ** Module access macro module_BASES replaced by module_BASE_PTRS. ** Register accessor macros added to the memory map. ** Renamed interrupt vector Watchdog to WDOG_EWM, LPTimer to LPTMR0 and LLW to LLWU ** ** ################################################################### */ /*! * @file MK22F12 * @version 1.8 * @date 2015-02-19 * @brief Device specific configuration file for MK22F12 (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_MK22F12_H_ #define _SYSTEM_MK22F12_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 of the system oscillator (OSC) in Hz */ #define CPU_XTAL32k_CLK_HZ 32768U /* Value of the external 32k crystal or oscillator clock frequency of the RTC 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 */ /* RTC oscillator setting */ /* #undef SYSTEM_RTC_CR_VALUE */ /* RTC oscillator not enabled. Commented out for MISRA compliance. */ /* Low power mode enable */ /* SMC_PMPROT: AVLP=1,ALLS=1,AVLLS=1 */ #define SYSTEM_SMC_PMPROT_VALUE 0x2AU /* 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); #ifdef __cplusplus } #endif #endif /* _SYSTEM_MK22F12_H_ */