meh
Fork of mbed by
TARGET_KL25Z/system_MKL25Z4.h
- Committer:
- bogdanm
- Date:
- 2013-08-12
- Revision:
- 65:5798e58a58b1
- Parent:
- 64:e3affc9e7238
- Child:
- 66:9c8f0e3462fb
File content as of revision 65:5798e58a58b1:
/* ** ################################################################### ** Processor: MKL25Z128VLK4 ** Compilers: ARM Compiler ** Freescale C/C++ for Embedded ARM ** GNU C Compiler ** IAR ANSI C/C++ Compiler for ARM ** ** Reference manual: KL25RM, Rev.1, Jun 2012 ** Version: rev. 1.1, 2012-06-21 ** ** 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: 2012 Freescale Semiconductor, Inc. All Rights Reserved. ** ** http: www.freescale.com ** mail: support@freescale.com ** ** Revisions: ** - rev. 1.0 (2012-06-13) ** Initial version. ** - rev. 1.1 (2012-06-21) ** Update according to reference manual rev. 1. ** ** ################################################################### */ /** * @file MKL25Z4 * @version 1.1 * @date 2012-06-21 * @brief Device specific configuration file for MKL25Z4 (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_MKL25Z4_H_ #define SYSTEM_MKL25Z4_H_ /**< Symbol preventing repeated inclusion */ #ifdef __cplusplus extern "C" { #endif #include <stdint.h> /** * @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 /* #if !defined(SYSTEM_MKL25Z4_H_) */