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TARGET_K20D50M/TOOLCHAIN_IAR/system_MK20D5.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 171:3a7713b1edbc 1 /*
AnnaBridge 171:3a7713b1edbc 2 ** ###################################################################
AnnaBridge 171:3a7713b1edbc 3 ** Compilers: ARM Compiler
AnnaBridge 171:3a7713b1edbc 4 ** Freescale C/C++ for Embedded ARM
AnnaBridge 171:3a7713b1edbc 5 ** GNU C Compiler
AnnaBridge 171:3a7713b1edbc 6 ** IAR ANSI C/C++ Compiler for ARM
AnnaBridge 171:3a7713b1edbc 7 **
AnnaBridge 171:3a7713b1edbc 8 ** Reference manuals: K20P64M50SF0RM Rev. 1, Oct 2011
AnnaBridge 171:3a7713b1edbc 9 ** K20P32M50SF0RM Rev. 1, Oct 2011
AnnaBridge 171:3a7713b1edbc 10 ** K20P48M50SF0RM Rev. 1, Oct 2011
AnnaBridge 171:3a7713b1edbc 11 **
AnnaBridge 171:3a7713b1edbc 12 ** Version: rev. 2.0, 2012-03-19
AnnaBridge 171:3a7713b1edbc 13 **
AnnaBridge 171:3a7713b1edbc 14 ** Abstract:
AnnaBridge 171:3a7713b1edbc 15 ** Provides a system configuration function and a global variable that
AnnaBridge 171:3a7713b1edbc 16 ** contains the system frequency. It configures the device and initializes
AnnaBridge 171:3a7713b1edbc 17 ** the oscillator (PLL) that is part of the microcontroller device.
AnnaBridge 171:3a7713b1edbc 18 **
AnnaBridge 171:3a7713b1edbc 19 ** Copyright: 2015 Freescale Semiconductor, Inc. All Rights Reserved.
AnnaBridge 171:3a7713b1edbc 20 **
AnnaBridge 171:3a7713b1edbc 21 ** http: www.freescale.com
AnnaBridge 171:3a7713b1edbc 22 ** mail: support@freescale.com
AnnaBridge 171:3a7713b1edbc 23 **
AnnaBridge 171:3a7713b1edbc 24 ** Revisions:
AnnaBridge 171:3a7713b1edbc 25 ** - rev. 1.0 (2011-12-15)
AnnaBridge 171:3a7713b1edbc 26 ** Initial version
AnnaBridge 171:3a7713b1edbc 27 ** - rev. 2.0 (2012-03-19)
AnnaBridge 171:3a7713b1edbc 28 ** PDB Peripheral register structure updated.
AnnaBridge 171:3a7713b1edbc 29 ** DMA Registers and bits for unsupported DMA channels removed.
AnnaBridge 171:3a7713b1edbc 30 **
AnnaBridge 171:3a7713b1edbc 31 ** ###################################################################
AnnaBridge 171:3a7713b1edbc 32 */
AnnaBridge 171:3a7713b1edbc 33
AnnaBridge 171:3a7713b1edbc 34 /**
AnnaBridge 171:3a7713b1edbc 35 * @file MK20D5
AnnaBridge 171:3a7713b1edbc 36 * @version 2.0
AnnaBridge 171:3a7713b1edbc 37 * @date 2012-03-19
AnnaBridge 171:3a7713b1edbc 38 * @brief Device specific configuration file for MK20D5 (header file)
AnnaBridge 171:3a7713b1edbc 39 *
AnnaBridge 171:3a7713b1edbc 40 * Provides a system configuration function and a global variable that contains
AnnaBridge 171:3a7713b1edbc 41 * the system frequency. It configures the device and initializes the oscillator
AnnaBridge 171:3a7713b1edbc 42 * (PLL) that is part of the microcontroller device.
AnnaBridge 171:3a7713b1edbc 43 */
AnnaBridge 171:3a7713b1edbc 44
AnnaBridge 171:3a7713b1edbc 45 #ifndef SYSTEM_MK20D5_H_
AnnaBridge 171:3a7713b1edbc 46 #define SYSTEM_MK20D5_H_ /**< Symbol preventing repeated inclusion */
AnnaBridge 171:3a7713b1edbc 47
AnnaBridge 171:3a7713b1edbc 48 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 49 extern "C" {
AnnaBridge 171:3a7713b1edbc 50 #endif
AnnaBridge 171:3a7713b1edbc 51
AnnaBridge 171:3a7713b1edbc 52 #include <stdint.h>
AnnaBridge 171:3a7713b1edbc 53
AnnaBridge 171:3a7713b1edbc 54 /**
AnnaBridge 171:3a7713b1edbc 55 * @brief System clock frequency (core clock)
AnnaBridge 171:3a7713b1edbc 56 *
AnnaBridge 171:3a7713b1edbc 57 * The system clock frequency supplied to the SysTick timer and the processor
AnnaBridge 171:3a7713b1edbc 58 * core clock. This variable can be used by the user application to setup the
AnnaBridge 171:3a7713b1edbc 59 * SysTick timer or configure other parameters. It may also be used by debugger to
AnnaBridge 171:3a7713b1edbc 60 * query the frequency of the debug timer or configure the trace clock speed
AnnaBridge 171:3a7713b1edbc 61 * SystemCoreClock is initialized with a correct predefined value.
AnnaBridge 171:3a7713b1edbc 62 */
AnnaBridge 171:3a7713b1edbc 63 extern uint32_t SystemCoreClock;
AnnaBridge 171:3a7713b1edbc 64
AnnaBridge 171:3a7713b1edbc 65 /**
AnnaBridge 171:3a7713b1edbc 66 * @brief Setup the microcontroller system.
AnnaBridge 171:3a7713b1edbc 67 *
AnnaBridge 171:3a7713b1edbc 68 * Typically this function configures the oscillator (PLL) that is part of the
AnnaBridge 171:3a7713b1edbc 69 * microcontroller device. For systems with variable clock speed it also updates
AnnaBridge 171:3a7713b1edbc 70 * the variable SystemCoreClock. SystemInit is called from startup_device file.
AnnaBridge 171:3a7713b1edbc 71 */
AnnaBridge 171:3a7713b1edbc 72 void SystemInit (void);
AnnaBridge 171:3a7713b1edbc 73
AnnaBridge 171:3a7713b1edbc 74 /**
AnnaBridge 171:3a7713b1edbc 75 * @brief Updates the SystemCoreClock variable.
AnnaBridge 171:3a7713b1edbc 76 *
AnnaBridge 171:3a7713b1edbc 77 * It must be called whenever the core clock is changed during program
AnnaBridge 171:3a7713b1edbc 78 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
AnnaBridge 171:3a7713b1edbc 79 * the current core clock.
AnnaBridge 171:3a7713b1edbc 80 */
AnnaBridge 171:3a7713b1edbc 81 void SystemCoreClockUpdate (void);
AnnaBridge 171:3a7713b1edbc 82
AnnaBridge 171:3a7713b1edbc 83 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 84 }
AnnaBridge 171:3a7713b1edbc 85 #endif
AnnaBridge 171:3a7713b1edbc 86
AnnaBridge 171:3a7713b1edbc 87 #endif /* #if !defined(SYSTEM_MK20D5_H_) */