system_ADuCRF101.h

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 * Copyright (c) 2014, Analog Devices, Inc.  All rights reserved.
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/**
@file     system_ADuCRF101.h
@brief:   CMSIS Cortex-M3 Device Peripheral Access Layer Header File
          for the ADuCRF101
@version  v0.2
@author   PAD CSE group, Analog Devices Inc
@date     March 09th 2012
**/


#ifndef __SYSTEM_ADUCRF101_H__
#define __SYSTEM_ADUCRF101_H__

#ifdef __cplusplus
 extern "C" {
#endif

/**
 * @brief  Initialize the system
 *
 * @return none
 *
 * Setup the microcontroller system.
 * Initialize the System and update the SystemCoreClock variable.
 */
extern void SystemInit (void);

/**
 * @brief  Update internal SystemCoreClock variable
 *
 * @return none
 *
 * Updates the internal SystemCoreClock with current core
 * Clock retrieved from cpu registers.
 */
extern void SystemCoreClockUpdate (void);


/**
 * @brief  Sets the system external clock frequency
 *
 * @param  ExtClkFreq   External clock frequency in Hz
 * @return none
 *
 * Sets the clock frequency of the source connected to P0.5 clock input source
 */
extern void SetSystemExtClkFreq (uint32_t ExtClkFreq);


/**
 * @brief  Gets the system external clock frequency
 *
 * @return External Clock frequency
 *
 * Gets the clock frequency of the source connected to P0.5 clock input source
 */
extern uint32_t GetSystemExtClkFreq (void);


#ifdef __cplusplus
}
#endif

#endif /* __SYSTEM_ADUCRF101_H__ */