version_2.0
Dependents: cc3000_ping_demo_try_2
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Diff: TARGET_KL46Z/system_MKL46Z4.h
- Revision:
- 73:1efda918f0ba
diff -r 4096f863f923 -r 1efda918f0ba TARGET_KL46Z/system_MKL46Z4.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_KL46Z/system_MKL46Z4.h Mon Dec 09 18:43:03 2013 +0200 @@ -0,0 +1,90 @@ +/* +** ################################################################### +** Processors: MKL46Z256VLH4 +** MKL46Z128VLH4 +** MKL46Z256VLL4 +** MKL46Z128VLL4 +** MKL46Z256VMC4 +** MKL46Z128VMC4 +** +** Compilers: ARM Compiler +** Freescale C/C++ for Embedded ARM +** GNU C Compiler +** IAR ANSI C/C++ Compiler for ARM +** +** Reference manual: KL46P121M48SF4RM, Rev.1 Draft A, Aug 2012 +** Version: rev. 2.0, 2012-12-12 +** +** 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, Inc. All Rights Reserved. +** +** http: www.freescale.com +** mail: support@freescale.com +** +** Revisions: +** - rev. 1.0 (2012-10-16) +** Initial version. +** - rev. 2.0 (2012-12-12) +** Update to reference manual rev. 1. +** +** ################################################################### +*/ + +/** + * @file MKL46Z4 + * @version 2.0 + * @date 2012-12-12 + * @brief Device specific configuration file for MKL46Z4 (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_MKL46Z4_H_ +#define SYSTEM_MKL46Z4_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_MKL46Z4_H_) */