CMSIS Core Register Access Functions

Topics
	CMSIS Core Instruction Interface

Functions list
__STATIC_FORCEINLINE void	__enable_irq (void)
	Enable IRQ Interrupts.
__STATIC_FORCEINLINE void	__disable_irq (void)
	Disable IRQ Interrupts.
__STATIC_FORCEINLINE uint32_t	__get_CONTROL (void)
	Get Control Register.
__STATIC_FORCEINLINE void	__set_CONTROL (uint32_t control)
	Set Control Register.
__STATIC_FORCEINLINE uint32_t	__get_IPSR (void)
	Get IPSR Register.
__STATIC_FORCEINLINE uint32_t	__get_APSR (void)
	Get APSR Register.
__STATIC_FORCEINLINE uint32_t	__get_xPSR (void)
	Get xPSR Register.
__STATIC_FORCEINLINE uint32_t	__get_PSP (void)
	Get Process Stack Pointer.
__STATIC_FORCEINLINE void	__set_PSP (uint32_t topOfProcStack)
	Set Process Stack Pointer.
__STATIC_FORCEINLINE uint32_t	__get_MSP (void)
	Get Main Stack Pointer.
__STATIC_FORCEINLINE void	__set_MSP (uint32_t topOfMainStack)
	Set Main Stack Pointer.
__STATIC_FORCEINLINE uint32_t	__get_PRIMASK (void)
	Get Priority Mask.
__STATIC_FORCEINLINE void	__set_PRIMASK (uint32_t priMask)
	Set Priority Mask.
__STATIC_FORCEINLINE uint32_t	__get_FPSCR (void)
	Get FPSCR.
__STATIC_FORCEINLINE void	__set_FPSCR (uint32_t fpscr)
	Set FPSCR.

Function Documentation

__disable_irq()

__STATIC_FORCEINLINE void __disable_irq

(

void

)

Disables IRQ interrupts by setting the I-bit in the CPSR. Can only be executed in Privileged modes.

__enable_irq()

__STATIC_FORCEINLINE void __enable_irq

(

void

)

Enables IRQ interrupts by clearing the I-bit in the CPSR. Can only be executed in Privileged modes.

__get_APSR()

__STATIC_FORCEINLINE uint32_t __get_APSR

(

void

)

Returns the content of the APSR Register.

Returns

APSR Register value

__get_CONTROL()

__STATIC_FORCEINLINE uint32_t __get_CONTROL

(

void

)

Returns the content of the Control Register.

Returns

Control Register value

__get_FPSCR()

__STATIC_FORCEINLINE uint32_t __get_FPSCR

(

void

)

Returns the current value of the Floating Point Status/Control register.

Returns

Floating Point Status/Control register value

__get_IPSR()

__STATIC_FORCEINLINE uint32_t __get_IPSR

(

void

)

Returns the content of the IPSR Register.

Returns

IPSR Register value

__get_MSP()

__STATIC_FORCEINLINE uint32_t __get_MSP

(

void

)

Returns the current value of the Main Stack Pointer (MSP).

Returns

MSP Register value

__get_PRIMASK()

__STATIC_FORCEINLINE uint32_t __get_PRIMASK

(

void

)

Returns the current state of the priority mask bit from the Priority Mask Register.

Returns

Priority Mask value

__get_PSP()

__STATIC_FORCEINLINE uint32_t __get_PSP

(

void

)

Returns the current value of the Process Stack Pointer (PSP).

Returns

PSP Register value

__get_xPSR()

__STATIC_FORCEINLINE uint32_t __get_xPSR

(

void

)

Returns the content of the xPSR Register.

Returns

xPSR Register value

__set_CONTROL()

__STATIC_FORCEINLINE void __set_CONTROL

(

uint32_t

control

)

Writes the given value to the Control Register.

Parameters

[in]

control

Control Register value to set

__set_FPSCR()

__STATIC_FORCEINLINE void __set_FPSCR

(

uint32_t

fpscr

)

Assigns the given value to the Floating Point Status/Control register.

Parameters

[in]

fpscr

Floating Point Status/Control value to set

__set_MSP()

__STATIC_FORCEINLINE void __set_MSP

(

uint32_t

topOfMainStack

)

Assigns the given value to the Main Stack Pointer (MSP).

Parameters

[in]

topOfMainStack

Main Stack Pointer value to set

__set_PRIMASK()

__STATIC_FORCEINLINE void __set_PRIMASK

(

uint32_t

priMask

)

Assigns the given value to the Priority Mask Register.

Parameters

[in]

priMask

Priority Mask

__set_PSP()

__STATIC_FORCEINLINE void __set_PSP

(

uint32_t

topOfProcStack

)

Assigns the given value to the Process Stack Pointer (PSP).

Parameters

[in]

topOfProcStack

Process Stack Pointer value to set