mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_TEENSY3_1/TOOLCHAIN_ARM_STD/system_MK20DX256.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 **
AnnaBridge 171:3a7713b1edbc 9 **
AnnaBridge 171:3a7713b1edbc 10 ** Version: rev. 2.0, 2012-03-19
AnnaBridge 171:3a7713b1edbc 11 **
AnnaBridge 171:3a7713b1edbc 12 ** Abstract:
AnnaBridge 171:3a7713b1edbc 13 ** Provides a system configuration function and a global variable that
AnnaBridge 171:3a7713b1edbc 14 ** contains the system frequency. It configures the device and initializes
AnnaBridge 171:3a7713b1edbc 15 ** the oscillator (PLL) that is part of the microcontroller device.
AnnaBridge 171:3a7713b1edbc 16 **
AnnaBridge 171:3a7713b1edbc 17 ** Copyright: 2015 Freescale Semiconductor, Inc. All Rights Reserved.
AnnaBridge 171:3a7713b1edbc 18 **
AnnaBridge 171:3a7713b1edbc 19 ** http: www.freescale.com
AnnaBridge 171:3a7713b1edbc 20 ** mail: support@freescale.com
AnnaBridge 171:3a7713b1edbc 21 **
AnnaBridge 171:3a7713b1edbc 22 ** Revisions:
AnnaBridge 171:3a7713b1edbc 23 ** - rev. 1.0 (2011-12-15)
AnnaBridge 171:3a7713b1edbc 24 ** Initial version
AnnaBridge 171:3a7713b1edbc 25 ** - rev. 2.0 (2012-03-19)
AnnaBridge 171:3a7713b1edbc 26 ** PDB Peripheral register structure updated.
AnnaBridge 171:3a7713b1edbc 27 ** DMA Registers and bits for unsupported DMA channels removed.
AnnaBridge 171:3a7713b1edbc 28 **
AnnaBridge 171:3a7713b1edbc 29 ** ###################################################################
AnnaBridge 171:3a7713b1edbc 30 */
AnnaBridge 171:3a7713b1edbc 31
AnnaBridge 171:3a7713b1edbc 32 /**
AnnaBridge 171:3a7713b1edbc 33 * @file MK20DX256
AnnaBridge 171:3a7713b1edbc 34 * @version 2.0
AnnaBridge 171:3a7713b1edbc 35 * @date 2012-03-19
AnnaBridge 171:3a7713b1edbc 36 * @brief Device specific configuration file for MK20DX256 (header file)
AnnaBridge 171:3a7713b1edbc 37 *
AnnaBridge 171:3a7713b1edbc 38 * Provides a system configuration function and a global variable that contains
AnnaBridge 171:3a7713b1edbc 39 * the system frequency. It configures the device and initializes the oscillator
AnnaBridge 171:3a7713b1edbc 40 * (PLL) that is part of the microcontroller device.
AnnaBridge 171:3a7713b1edbc 41 */
AnnaBridge 171:3a7713b1edbc 42
AnnaBridge 171:3a7713b1edbc 43 #ifndef SYSTEM_MK20DX256_H_
AnnaBridge 171:3a7713b1edbc 44 #define SYSTEM_MK20DX256_H_ /**< Symbol preventing repeated inclusion */
AnnaBridge 171:3a7713b1edbc 45
AnnaBridge 171:3a7713b1edbc 46 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 47 extern "C" {
AnnaBridge 171:3a7713b1edbc 48 #endif
AnnaBridge 171:3a7713b1edbc 49
AnnaBridge 171:3a7713b1edbc 50 #include <stdint.h>
AnnaBridge 171:3a7713b1edbc 51
AnnaBridge 171:3a7713b1edbc 52 /**
AnnaBridge 171:3a7713b1edbc 53 * @brief System clock frequency (core clock)
AnnaBridge 171:3a7713b1edbc 54 *
AnnaBridge 171:3a7713b1edbc 55 * The system clock frequency supplied to the SysTick timer and the processor
AnnaBridge 171:3a7713b1edbc 56 * core clock. This variable can be used by the user application to setup the
AnnaBridge 171:3a7713b1edbc 57 * SysTick timer or configure other parameters. It may also be used by debugger to
AnnaBridge 171:3a7713b1edbc 58 * query the frequency of the debug timer or configure the trace clock speed
AnnaBridge 171:3a7713b1edbc 59 * SystemCoreClock is initialized with a correct predefined value.
AnnaBridge 171:3a7713b1edbc 60 */
AnnaBridge 171:3a7713b1edbc 61 extern uint32_t SystemCoreClock;
AnnaBridge 171:3a7713b1edbc 62
AnnaBridge 171:3a7713b1edbc 63 /**
AnnaBridge 171:3a7713b1edbc 64 * @brief Setup the microcontroller system.
AnnaBridge 171:3a7713b1edbc 65 *
AnnaBridge 171:3a7713b1edbc 66 * Typically this function configures the oscillator (PLL) that is part of the
AnnaBridge 171:3a7713b1edbc 67 * microcontroller device. For systems with variable clock speed it also updates
AnnaBridge 171:3a7713b1edbc 68 * the variable SystemCoreClock. SystemInit is called from startup_device file.
AnnaBridge 171:3a7713b1edbc 69 */
AnnaBridge 171:3a7713b1edbc 70 void SystemInit (void);
AnnaBridge 171:3a7713b1edbc 71
AnnaBridge 171:3a7713b1edbc 72 /**
AnnaBridge 171:3a7713b1edbc 73 * @brief Updates the SystemCoreClock variable.
AnnaBridge 171:3a7713b1edbc 74 *
AnnaBridge 171:3a7713b1edbc 75 * It must be called whenever the core clock is changed during program
AnnaBridge 171:3a7713b1edbc 76 * execution. SystemCoreClockUpdate() evaluates the clock register settings and calculates
AnnaBridge 171:3a7713b1edbc 77 * the current core clock.
AnnaBridge 171:3a7713b1edbc 78 */
AnnaBridge 171:3a7713b1edbc 79 void SystemCoreClockUpdate (void);
AnnaBridge 171:3a7713b1edbc 80
AnnaBridge 171:3a7713b1edbc 81 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 82 }
AnnaBridge 171:3a7713b1edbc 83 #endif
AnnaBridge 171:3a7713b1edbc 84
AnnaBridge 171:3a7713b1edbc 85 #endif /* #if !defined(SYSTEM_MK20DX256_H_) */