| /* |
| ** ################################################################### |
| ** Processor: MKW22D512VHA5 |
| ** 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: MKW2xDRM Rev.2 July 2014 |
| ** Version: rev. 2.0, 2014-11-26 |
| ** Build: b170112 |
| ** |
| ** 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. |
| ** |
| ** Copyright (c) 2016 Freescale Semiconductor, Inc. |
| ** Copyright 2016 - 2017 NXP |
| ** Redistribution and use in source and binary forms, with or without modification, |
| ** are permitted provided that the following conditions are met: |
| ** |
| ** o Redistributions of source code must retain the above copyright notice, this list |
| ** of conditions and the following disclaimer. |
| ** |
| ** o 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. |
| ** |
| ** o 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. |
| ** |
| ** 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 (2013-11-22) |
| ** Initial version. |
| ** - rev. 2.0 (2014-11-26) |
| ** update of SystemInit() imlementation |
| ** Module access macro module_BASES replaced by module_BASE_PTRS. |
| ** Register accessor macros added to the memory map. |
| ** MCG - bit LOLS in MCG_S register renamed to LOLS0. |
| ** DAC0 registers removed. |
| ** |
| ** ################################################################### |
| */ |
| |
| /*! |
| * @file MKW22D5 |
| * @version 2.0 |
| * @date 2014-11-26 |
| * @brief Device specific configuration file for MKW22D5 (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_MKW22D5_H_ |
| #define _SYSTEM_MKW22D5_H_ /**< Symbol preventing repeated inclusion */ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <stdint.h> |
| |
| |
| #ifndef DISABLE_WDOG |
| #define DISABLE_WDOG 1 |
| #endif |
| |
| /* Define clock source values */ |
| |
| #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 */ |
| /* 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: AVLP=1,ALLS=1,AVLLS=1 */ |
| #define SYSTEM_SMC_PMPROT_VALUE 0x2AU /* SMC_PMPROT */ |
| |
| #define DEFAULT_SYSTEM_CLOCK 20971520U /* Default System clock value */ |
| #define CPU_XTAL_CLK_HZ 4000000U /* Value of the clock provided by the wireless modem by default */ |
| |
| |
| |
| /** |
| * @brief Configure the external clock source |
| * |
| * The wireless modem present in the system can supply clock which can be used |
| * as a clock source for the whole system. This function is defined as weak. |
| * |
| */ |
| extern uint8_t ExtClk_Setup_HookUp(uint32_t clk_out_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_MKW22D5_H_ */ |