mbed library sources
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Diff: targets/cmsis/TARGET_Freescale/TARGET_K64F/system_MK64F12.h
- Revision:
- 146:f64d43ff0c18
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_Freescale/TARGET_K64F/system_MK64F12.h Wed Apr 02 21:00:08 2014 +0100 @@ -0,0 +1,92 @@ +/* +** ################################################################### +** Processor: MK64FN1M0VMD12 +** Compilers: ARM Compiler +** Freescale C/C++ for Embedded ARM +** GNU C Compiler +** GNU C Compiler - CodeSourcery Sourcery G++ +** IAR ANSI C/C++ Compiler for ARM +** +** Reference manual: K64P144M120SF5RM, Rev.1, July 2013 +** Version: rev. 2.1, 2013-10-29 +** +** 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: 2013 Freescale, Inc. All Rights Reserved. +** +** http: www.freescale.com +** mail: support@freescale.com +** +** Revisions: +** - rev. 1.0 (2013-08-12) +** Initial version. +** - rev. 2.0 (2013-10-29) +** Register accessor macros added to the memory map. +** Symbols for Processor Expert memory map compatibility added to the memory map. +** Startup file for gcc has been updated according to CMSIS 3.2. +** System initialization updated. +** MCG - registers updated. +** PORTA, PORTB, PORTC, PORTE - registers for digital filter removed. +** - rev. 2.1 (2013-10-29) +** Definition of BITBAND macros updated to support peripherals with 32-bit acces disabled. +** +** ################################################################### +*/ + +/*! + * @file MK64F12 + * @version 2.1 + * @date 2013-10-29 + * @brief Device specific configuration file for MK64F12 (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_MK64F12_H_ +#define SYSTEM_MK64F12_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_MK64F12_H_) */