tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_KLXX/TARGET_KL46Z/system_MKL46Z4.h

   1 /*
   2 ** ###################################################################
   3 **     Processors:          MKL46Z256VLH4
   4 **                          MKL46Z128VLH4
   5 **                          MKL46Z256VLL4
   6 **                          MKL46Z128VLL4
   7 **                          MKL46Z256VMC4
   8 **                          MKL46Z128VMC4
   9 **
  10 **     Compilers:           ARM Compiler
  11 **                          Freescale C/C++ for Embedded ARM
  12 **                          GNU C Compiler
  13 **                          IAR ANSI C/C++ Compiler for ARM
  14 **
  15 **     Reference manual:    KL46P121M48SF4RM, Rev.1 Draft A, Aug 2012
  16 **     Version:             rev. 2.0, 2012-12-12
  17 **
  18 **     Abstract:
  19 **         Provides a system configuration function and a global variable that
  20 **         contains the system frequency. It configures the device and initializes
  21 **         the oscillator (PLL) that is part of the microcontroller device.
  22 **
  23 **     Copyright: 2012 Freescale, Inc. All Rights Reserved.
  24 **
  25 **     http:                 www.freescale.com
  26 **     mail:                 support@freescale.com
  27 **
  28 **     Revisions:
  29 **     - rev. 1.0 (2012-10-16)
  30 **         Initial version.
  31 **     - rev. 2.0 (2012-12-12)
  32 **         Update to reference manual rev. 1.
  33 **
  34 ** ###################################################################
  35 */
  36
  37 /**
  38  * @file MKL46Z4
  39  * @version 2.0
  40  * @date 2012-12-12
  41  * @brief Device specific configuration file for MKL46Z4 (header file)
  42  *
  43  * Provides a system configuration function and a global variable that contains
  44  * the system frequency. It configures the device and initializes the oscillator
  45  * (PLL) that is part of the microcontroller device.
  46  */
  47
  48 #ifndef SYSTEM_MKL46Z4_H_
  49 #define SYSTEM_MKL46Z4_H_                        /**< Symbol preventing repeated inclusion */
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 #include <stdint.h>
  56
  57 /**
  58  * @brief System clock frequency (core clock)
  59  *
  60  * The system clock frequency supplied to the SysTick timer and the processor
  61  * core clock. This variable can be used by the user application to setup the
  62  * SysTick timer or configure other parameters. It may also be used by debugger to
  63  * query the frequency of the debug timer or configure the trace clock speed
  64  * SystemCoreClock is initialized with a correct predefined value.
  65  */
  66 extern uint32_t SystemCoreClock;
  67
  68 /**
  69  * @brief Setup the microcontroller system.
  70  *
  71  * Typically this function configures the oscillator (PLL) that is part of the
  72  * microcontroller device. For systems with variable clock speed it also updates
  73  * the variable SystemCoreClock. SystemInit is called from startup_device file.
  74  */
  75 void SystemInit (void);
  76
  77 /**
  78  * @brief Updates the SystemCoreClock variable.
  79  *
  80  * It must be called whenever the core clock is changed during program
  81  * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
  82  * the current core clock.
  83  */
  84 void SystemCoreClockUpdate (void);
  85
  86 #ifdef __cplusplus
  87 }
  88 #endif
  89
  90 #endif  /* #if !defined(SYSTEM_MKL46Z4_H_) */