mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_Freescale/TARGET_K20D50M/system_MK20D5.h
- Committer:
- janekm
- Date:
- 2014-09-16
- Revision:
- 310:6188e0254baa
- Parent:
- 255:20b371a9491b
File content as of revision 310:6188e0254baa:
/* ** ################################################################### ** Compilers: ARM Compiler ** Freescale C/C++ for Embedded ARM ** GNU C Compiler ** IAR ANSI C/C++ Compiler for ARM ** ** Reference manuals: K20P64M50SF0RM Rev. 1, Oct 2011 ** K20P32M50SF0RM Rev. 1, Oct 2011 ** K20P48M50SF0RM Rev. 1, Oct 2011 ** ** Version: rev. 2.0, 2012-03-19 ** ** 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 Semiconductor, Inc. All Rights Reserved. ** ** http: www.freescale.com ** mail: support@freescale.com ** ** Revisions: ** - rev. 1.0 (2011-12-15) ** Initial version ** - rev. 2.0 (2012-03-19) ** PDB Peripheral register structure updated. ** DMA Registers and bits for unsupported DMA channels removed. ** ** ################################################################### */ /** * @file MK20D5 * @version 2.0 * @date 2012-03-19 * @brief Device specific configuration file for MK20D5 (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_MK20D5_H_ #define SYSTEM_MK20D5_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_MK20D5_H_) */