clock.h File Reference

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Macros
#define	_ASM_NOP_   asm("tnop")
#define	CLOCK_DLY_1_CYC   _ASM_NOP_
	instruction delay. More...
#define	CLOCK_DLY_2_CYC   _ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_3_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_4_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_5_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_6_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_7_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_8_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_9_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	CLOCK_DLY_10_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_
#define	SYSCLK_RC_CLOCK_EN   0
	select RC as system clock More...

Enumerations
enum	SYS_CLK_TypeDef {   SYS_CLK_12M_Crystal = 0x44, SYS_CLK_16M_Crystal = 0x43, SYS_CLK_24M_Crystal = 0x42, SYS_CLK_32M_Crystal = 0x60,   SYS_CLK_48M_Crystal = 0x20, SYS_CLK_RC_THRES = 0x10, SYS_CLK_24M_RC = 0x00, SYS_CLK_32M_RC = 0x01,   SYS_CLK_48M_RC = 0x02 }
	system clock type. More...
enum	CLK_32K_TypeDef { CLK_32K_RC =0, CLK_32K_XTAL =1 }
	32K clock type. More...

Functions
void	clock_init (SYS_CLK_TypeDef SYS_CLK)
	This function to select the system clock source. More...
static int	clock_get_system_clk (void)
	This function to get the system clock source. More...
void	clock_32k_init (CLK_32K_TypeDef src)
	This function serves to set 32k clock source. More...
void	rc_24m_cal (void)
	This function performs to select 24M as the system clock source. More...
void	rc_48m_cal (void)
	This function performs to select 48M RC as the system clock source. More...
void	rc_32k_cal (void)
	This function performs to select 32K as the system clock source. More...
void	doubler_calibration (void)
	This function performs to calibration the source clock. More...

Variables
unsigned char	system_clk_type

Macro Definition Documentation

_ASM_NOP_

#define _ASM_NOP_   asm("tnop")

CLOCK_DLY_1_CYC

#define CLOCK_DLY_1_CYC   _ASM_NOP_

instruction delay.

CLOCK_DLY_2_CYC

#define CLOCK_DLY_2_CYC   _ASM_NOP_;_ASM_NOP_

CLOCK_DLY_3_CYC

#define CLOCK_DLY_3_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_4_CYC

#define CLOCK_DLY_4_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_5_CYC

#define CLOCK_DLY_5_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_6_CYC

#define CLOCK_DLY_6_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_7_CYC

#define CLOCK_DLY_7_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_8_CYC

#define CLOCK_DLY_8_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_9_CYC

#define CLOCK_DLY_9_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

CLOCK_DLY_10_CYC

#define CLOCK_DLY_10_CYC   _ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_;_ASM_NOP_

SYSCLK_RC_CLOCK_EN

#define SYSCLK_RC_CLOCK_EN   0

select RC as system clock

Enumeration Type Documentation

SYS_CLK_TypeDef

enum SYS_CLK_TypeDef

system clock type.

Enumerator
SYS_CLK_12M_Crystal
SYS_CLK_16M_Crystal
SYS_CLK_24M_Crystal
SYS_CLK_32M_Crystal
SYS_CLK_48M_Crystal
SYS_CLK_RC_THRES
SYS_CLK_24M_RC
SYS_CLK_32M_RC
SYS_CLK_48M_RC

CLK_32K_TypeDef

enum CLK_32K_TypeDef

32K clock type.

Enumerator
CLK_32K_RC
CLK_32K_XTAL

Function Documentation

clock_init()

void clock_init

(

SYS_CLK_TypeDef

SYS_CLK

)

This function to select the system clock source.

Parameters

[in]

SYS_CLK

- the clock source of the system clock.

Returns

none

clock_get_system_clk()

static int clock_get_system_clk ( void  )

inlinestatic

This function to get the system clock source.

Parameters

[in]

none

Returns

system clock source

clock_32k_init()

void clock_32k_init

(

CLK_32K_TypeDef

src

)

This function serves to set 32k clock source.

Parameters

variable

of 32k type.

Returns

none.

rc_24m_cal()

void rc_24m_cal

(

void

)

This function performs to select 24M as the system clock source.

Parameters

[in]

none.

Returns

none.

rc_48m_cal()

void rc_48m_cal

(

void

)

This function performs to select 48M RC as the system clock source.

Parameters

[in]

none.

Returns

none.

rc_32k_cal()

void rc_32k_cal

(

void

)

This function performs to select 32K as the system clock source.

Parameters

[in]

none.

Returns

none.

doubler_calibration()

void doubler_calibration

(

void

)

This function performs to calibration the source clock.

Parameters

[in]

none.

Returns

none.

Variable Documentation

system_clk_type

unsigned char system_clk_type