clock.h

cc2x30_sw_examples: 适用于SmartRF05EB 支持CC2430、CC2530 提供Light_Switch及perTest例程。

/******************************************************************************
    Filename: clock.h

    This file defines interface for clock related functions for the
    CC243x family of RF system-on-chips from Texas Instruments.

******************************************************************************/
#ifndef _CLOCK_H
#define _CLOCK_H


/*******************************************************************************
 * INCLUDES
 */

#include "hal_types.h"

// Include chip specific IO definition file
#if (chip == 2430)
#include "ioCC2430.h"
#endif
#if (chip == 2431)
#include "ioCC2431.h"
#endif



/*******************************************************************************
 * CONSTANTS
 */

/* SEE DATA SHEET FOR DETAILS ABOUT THE FOLLOWING BIT MASKS */

// Parameters for cc2430ClockSetMainSrc
#define CLOCK_SRC_XOSC      0  // High speed Crystal Oscillator Control
#define CLOCK_SRC_HFRC      1  // Low power RC Oscillator

// Parameters for cc2430ClockSelect32k
#define CLOCK_32K_XTAL      0  // 32.768 Hz crystal oscillator
#define CLOCK_32K_RCOSC     1  // 32 kHz RC oscillator

// Bit masks to check CLKCON register
#define CLKCON_OSC32K_BM    0x80  // bit mask, for the slow 32k clock oscillator
#define CLKCON_OSC_BM       0x40  // bit mask, for the system clock oscillator
#define CLKCON_TICKSPD_BM   0x38  // bit mask, for timer ticks output setting
#define CLKCON_CLKSPD_BM    0x01  // bit maks, for the clock speed

#define TICKSPD_DIV_1       (0x00 << 3)
#define TICKSPD_DIV_2       (0x01 << 3)
#define TICKSPD_DIV_4       (0x02 << 3)
#define TICKSPD_DIV_8       (0x03 << 3)
#define TICKSPD_DIV_16      (0x04 << 3)
#define TICKSPD_DIV_32      (0x05 << 3)
#define TICKSPD_DIV_64      (0x06 << 3)
#define TICKSPD_DIV_128     (0x07 << 3)

// Bit masks to check SLEEP register
#define SLEEP_XOSC_STB_BM   0x40  // bit mask, check the stability of XOSC
#define SLEEP_HFRC_STB_BM   0x20  // bit maks, check the stability of the High-frequency RC oscillator
#define SLEEP_OSC_PD_BM     0x04  // bit mask, power down system clock oscillator(s)


/*******************************************************************************
 * MACROS
 */

// Macro for checking status of the high frequency RC oscillator.
#define CC2430_IS_HFRC_STABLE(x)    (SLEEP & SLEEP_HFRC_STB_BM)

// Macro for checking status of the crystal oscillator
#define CC2430_IS_XOSC_STABLE(x)    (SLEEP & SLEEP_XOSC_STB_BM)

// Macro for getting the clock division factor
#define CC2430_GET_CLKSPD(x)        (CLKCON & CLKCON_CLKSPD_BM)


// Macro for getting the timer tick division factor.
#define CC2430_GET_TICKSPD(x)       ((CLKCON & CLKCON_TICKSPD_BM) >> 3)

// Macro for setting the clock division factor, x value from 0b000 to 0b111
#define CC2430_SET_TICKSPD(x)        st( CLKCON = ((((x) << 3) & 0x38)  \
                                                    | (CLKCON & 0xC7)); \
		)

// Macro for setting the timer tick division factor, x value from 0b000 to 0b111
#define CC2430_SET_CLKSPD(x)         st( CLKCON = (((x) & 0x07)         \
                                                    | (CLKCON & 0xF8)); \
									 )



/*******************************************************************************
 * FUNCTIONS
 */

void clockSetMainSrc(uint8 source);
void clockSelect32k(uint8 source);

#endif

/*------------------------------------------------------------------------------
										  0ooo                                     
								ooo0	 (	 )                                     
								(	)	  ) /                                      
								 \ (	 (_/                                       
								  \_)		 Modify By:cuiqingwei [gary]                  
------------------------------------------------------------------------------*/