OsArch.h File Reference

Implement function declare related to Cortex-M3(ARM-v7) More...

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Defines
#define	RELOAD_VAL   ((U32)(( (U32)CFG_CPU_FREQ) / (U32)CFG_SYSTICK_FREQ) -1)
#define	NVIC_SYS_PRI3   (*((volatile U32 *)0xE000ED20))
Functions
OS_STK *	InitTaskContext (FUNCPtr task, void *param, OS_STK *pstk)
	Initial task context.
void	SwitchContext (void)
	Do ready work to Switch Context for task change.
void	SetEnvironment (OS_STK *pstk)
	Set environment for Coocox OS running.
U8	Inc8 (volatile U8 *data)
	Plus a byte integers and Saved into memory cell.
U8	Dec8 (volatile U8 *data)
	Decrease a byte integers and Saved into memory cell.
void	IRQ_ENABLE_RESTORE (void)
	ENABLE Interrupt.
void	IRQ_DISABLE_SAVE (void)
	Close Interrupt.
Variables
U64	OSTickCnt

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Detailed Description

Implement function declare related to Cortex-M3(ARM-v7)

Version:

V1.1.3

Date:

2010.04.26

This header file including functions or defines related to Cortex-M3(ARM-v7).

INTERNAL FILE,DON'T PUBLIC.

© COPYRIGHT 2009 CooCox

Definition in file OsArch.h.

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Define Documentation

#define NVIC_SYS_PRI3   (*((volatile U32 *)0xE000ED20))

Initialize PendSV,SVC and SysTick interrupt priority to lowest.

Definition at line 32 of file OsArch.h.

#define RELOAD_VAL   ((U32)(( (U32)CFG_CPU_FREQ) / (U32)CFG_SYSTICK_FREQ) -1)

Initial System tick.

Definition at line 25 of file OsArch.h.

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Function Documentation

U8 Dec8

(

volatile U8 *

data )

Decrease a byte integers and Saved into memory cell.

Parameters:

[in]	data	byte integers.
[out]	None

Return values:

Returns

Original value.

Description

This function is called to Decrease a byte integers and Saved into memory cell.

Definition at line 60 of file port.c.

U8 Inc8

(

volatile U8 *

data )

Plus a byte integers and Saved into memory cell.

Parameters:

[in]	data	byte integers.
[out]	None

Return values:

Returns

Original value.

Description

This function is called to Plus a byte integers and Saved into memory cell.

Definition at line 32 of file port.c.

OS_STK* InitTaskContext	(	FUNCPtr	task,
		void *	param,
		OS_STK *	pstk
	)

Initial task context.

Parameters:

[in]	task	Entry point of task.
[in]	param	The parameter pass to task.
[in]	pstk	The pointer to stack top.
[out]	None

Return values:

Returns

location of new stack top.

Description

This function is called to initialize the stack frame of the task being created.

Definition at line 33 of file arch.c.

void IRQ_DISABLE_SAVE

(

void

)

Close Interrupt.

Parameters:

[in]	None
[out]	None

Return values:

None

Description

This function is called to close Interrupt.

Definition at line 101 of file port.c.

void IRQ_ENABLE_RESTORE

(

void

)

ENABLE Interrupt.

Parameters:

[in]	None
[out]	None

Return values:

None

Description

This function is called to ENABLE Interrupt.

Definition at line 85 of file port.c.

void SetEnvironment

(

OS_STK *

pstk )

Set environment for Coocox OS running.

Set environment for run

Parameters:

[in]	pstk	stack pointer
[out]	None

Return values:

None.

Description

This function is called to Set environment for Coocox OS running.

Definition at line 118 of file port.c.

void SwitchContext

(

void

)

Do ready work to Switch Context for task change.

Switch context

Parameters:

[in]	None
[out]	None

Return values:

None.

Description

This function is called to Do ready work to Switch Context for task change

Definition at line 139 of file port.c.

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Variable Documentation

U64 OSTickCnt

Counter for current system ticks. Initial context of task being created

Current system tick counter

Definition at line 17 of file arch.c.