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TARGET_KL25Z/system_MKL25Z4.h@71:7ec3cb6bbcc4, 2013-11-29 (annotated)

Committer:
jalp89
Date:
Fri Nov 29 09:39:46 2013 +0000
Revision:
71:7ec3cb6bbcc4
Parent:
66:9c8f0e3462fb 
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bogdanm 66:9c8f0e3462fb 1 /*
bogdanm 66:9c8f0e3462fb 2 ** ###################################################################
bogdanm 66:9c8f0e3462fb 3 ** Processor: MKL25Z128VLK4
bogdanm 66:9c8f0e3462fb 4 ** Compilers: ARM Compiler
bogdanm 66:9c8f0e3462fb 5 ** Freescale C/C++ for Embedded ARM
bogdanm 66:9c8f0e3462fb 6 ** GNU C Compiler
bogdanm 66:9c8f0e3462fb 7 ** IAR ANSI C/C++ Compiler for ARM
bogdanm 66:9c8f0e3462fb 8 **
bogdanm 66:9c8f0e3462fb 9 ** Reference manual: KL25RM, Rev.1, Jun 2012
bogdanm 66:9c8f0e3462fb 10 ** Version: rev. 1.1, 2012-06-21
bogdanm 66:9c8f0e3462fb 11 **
bogdanm 66:9c8f0e3462fb 12 ** Abstract:
bogdanm 66:9c8f0e3462fb 13 ** Provides a system configuration function and a global variable that
bogdanm 66:9c8f0e3462fb 14 ** contains the system frequency. It configures the device and initializes
bogdanm 66:9c8f0e3462fb 15 ** the oscillator (PLL) that is part of the microcontroller device.
bogdanm 66:9c8f0e3462fb 16 **
bogdanm 66:9c8f0e3462fb 17 ** Copyright: 2012 Freescale Semiconductor, Inc. All Rights Reserved.
bogdanm 66:9c8f0e3462fb 18 **
bogdanm 66:9c8f0e3462fb 19 ** http: www.freescale.com
bogdanm 66:9c8f0e3462fb 20 ** mail: support@freescale.com
bogdanm 66:9c8f0e3462fb 21 **
bogdanm 66:9c8f0e3462fb 22 ** Revisions:
bogdanm 66:9c8f0e3462fb 23 ** - rev. 1.0 (2012-06-13)
bogdanm 66:9c8f0e3462fb 24 ** Initial version.
bogdanm 66:9c8f0e3462fb 25 ** - rev. 1.1 (2012-06-21)
bogdanm 66:9c8f0e3462fb 26 ** Update according to reference manual rev. 1.
bogdanm 66:9c8f0e3462fb 27 **
bogdanm 66:9c8f0e3462fb 28 ** ###################################################################
bogdanm 66:9c8f0e3462fb 29 */
bogdanm 66:9c8f0e3462fb 30
bogdanm 66:9c8f0e3462fb 31 /**
bogdanm 66:9c8f0e3462fb 32 * @file MKL25Z4
bogdanm 66:9c8f0e3462fb 33 * @version 1.1
bogdanm 66:9c8f0e3462fb 34 * @date 2012-06-21
bogdanm 66:9c8f0e3462fb 35 * @brief Device specific configuration file for MKL25Z4 (header file)
bogdanm 66:9c8f0e3462fb 36 *
bogdanm 66:9c8f0e3462fb 37 * Provides a system configuration function and a global variable that contains
bogdanm 66:9c8f0e3462fb 38 * the system frequency. It configures the device and initializes the oscillator
bogdanm 66:9c8f0e3462fb 39 * (PLL) that is part of the microcontroller device.
bogdanm 66:9c8f0e3462fb 40 */
bogdanm 66:9c8f0e3462fb 41
bogdanm 66:9c8f0e3462fb 42 #ifndef SYSTEM_MKL25Z4_H_
bogdanm 66:9c8f0e3462fb 43 #define SYSTEM_MKL25Z4_H_ /**< Symbol preventing repeated inclusion */
bogdanm 66:9c8f0e3462fb 44
bogdanm 66:9c8f0e3462fb 45 #ifdef __cplusplus
bogdanm 66:9c8f0e3462fb 46 extern "C" {
bogdanm 66:9c8f0e3462fb 47 #endif
bogdanm 66:9c8f0e3462fb 48
bogdanm 66:9c8f0e3462fb 49 #include <stdint.h>
bogdanm 66:9c8f0e3462fb 50
bogdanm 66:9c8f0e3462fb 51 /**
bogdanm 66:9c8f0e3462fb 52 * @brief System clock frequency (core clock)
bogdanm 66:9c8f0e3462fb 53 *
bogdanm 66:9c8f0e3462fb 54 * The system clock frequency supplied to the SysTick timer and the processor
bogdanm 66:9c8f0e3462fb 55 * core clock. This variable can be used by the user application to setup the
bogdanm 66:9c8f0e3462fb 56 * SysTick timer or configure other parameters. It may also be used by debugger to
bogdanm 66:9c8f0e3462fb 57 * query the frequency of the debug timer or configure the trace clock speed
bogdanm 66:9c8f0e3462fb 58 * SystemCoreClock is initialized with a correct predefined value.
bogdanm 66:9c8f0e3462fb 59 */
bogdanm 66:9c8f0e3462fb 60 extern uint32_t SystemCoreClock;
bogdanm 66:9c8f0e3462fb 61
bogdanm 66:9c8f0e3462fb 62 /**
bogdanm 66:9c8f0e3462fb 63 * @brief Setup the microcontroller system.
bogdanm 66:9c8f0e3462fb 64 *
bogdanm 66:9c8f0e3462fb 65 * Typically this function configures the oscillator (PLL) that is part of the
bogdanm 66:9c8f0e3462fb 66 * microcontroller device. For systems with variable clock speed it also updates
bogdanm 66:9c8f0e3462fb 67 * the variable SystemCoreClock. SystemInit is called from startup_device file.
bogdanm 66:9c8f0e3462fb 68 */
bogdanm 66:9c8f0e3462fb 69 void SystemInit (void);
bogdanm 66:9c8f0e3462fb 70
bogdanm 66:9c8f0e3462fb 71 /**
bogdanm 66:9c8f0e3462fb 72 * @brief Updates the SystemCoreClock variable.
bogdanm 66:9c8f0e3462fb 73 *
bogdanm 66:9c8f0e3462fb 74 * It must be called whenever the core clock is changed during program
bogdanm 66:9c8f0e3462fb 75 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
bogdanm 66:9c8f0e3462fb 76 * the current core clock.
bogdanm 66:9c8f0e3462fb 77 */
bogdanm 66:9c8f0e3462fb 78 void SystemCoreClockUpdate (void);
bogdanm 66:9c8f0e3462fb 79
bogdanm 66:9c8f0e3462fb 80 #ifdef __cplusplus
bogdanm 66:9c8f0e3462fb 81 }
bogdanm 66:9c8f0e3462fb 82 #endif
bogdanm 66:9c8f0e3462fb 83
bogdanm 66:9c8f0e3462fb 84 #endif /* #if !defined(SYSTEM_MKL25Z4_H_) */