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 <hal_defs.h>

// Include chip specific IO definition file
#if (chip == 2530 || chip == 2531)
#include <ioCC2530.h>
#endif



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

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

// Parameters for cc2530ClockSetMainSrc
#define CLOCK_SRC_XOSC      0  // High speed Crystal Oscillator Control
#define CLOCK_SRC_HFRC      1  // Low power RC Oscillator

// Parameters for cc2530ClockSelect32k
#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 CC2530_IS_HFRC_STABLE(x)    (SLEEPSTA & SLEEP_HFRC_STB_BM)

// Macro for checking status of the crystal oscillator
#define CC2530_IS_XOSC_STABLE(x)    (SLEEPSTA & SLEEP_XOSC_STB_BM)

// Macro for getting the clock division factor
#define CC2530_GET_CLKSPD(x)        (CLKCONSTA & CLKCON_CLKSPD_BM)


// Macro for getting the timer tick division factor.
#define CC2530_GET_TICKSPD(x)       ((CLKCONSTA & CLKCON_TICKSPD_BM) >> 3)

// Macro for setting the clock division factor, x value from 0b000 to 0b111
#define CC2530_SET_TICKSPD(x)        st( CLKCONCMD = ((((x) << 3) & 0x38)  \
                                                    | (CLKCONCMD & 0xC7)); \
		)

// Macro for setting the timer tick division factor, x value from 0b000 to 0b111
#define CC2530_SET_CLKSPD(x)         st( CLKCONCMD = (((x) & 0x07)         \
                                                    | (CLKCONCMD & 0xF8)); \
									 )

// Macro for waiting for clock updates
#define CC2530_WAIT_CLK_UPDATE()    st( uint8 ____clkcon; \
                                        uint8 ____clkconsta; \
                                        ____clkcon = CLKCONCMD; \
                                        do { \
                                          ____clkconsta = CLKCONSTA; \
                                        } while (____clkconsta != ____clkcon); )




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

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

/*****************************************************************************/
#endif

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