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CMSIS Core Register Access Functions
[Functions and Instructions Reference]
Functions | |
| __STATIC_INLINE uint32_t | __get_CONTROL (void) |
| Get Control Register. | |
| __STATIC_INLINE void | __set_CONTROL (uint32_t control) |
| Set Control Register. | |
| __STATIC_INLINE uint32_t | __get_IPSR (void) |
| Get IPSR Register. | |
| __STATIC_INLINE uint32_t | __get_APSR (void) |
| Get APSR Register. | |
| __STATIC_INLINE uint32_t | __get_xPSR (void) |
| Get xPSR Register. | |
| __STATIC_INLINE uint32_t | __get_PSP (void) |
| Get Process Stack Pointer. | |
| __STATIC_INLINE void | __set_PSP (uint32_t topOfProcStack) |
| Set Process Stack Pointer. | |
| __STATIC_INLINE uint32_t | __get_MSP (void) |
| Get Main Stack Pointer. | |
| __STATIC_INLINE void | __set_MSP (uint32_t topOfMainStack) |
| Set Main Stack Pointer. | |
| __STATIC_INLINE uint32_t | __get_PRIMASK (void) |
| Get Priority Mask. | |
| __STATIC_INLINE void | __set_PRIMASK (uint32_t priMask) |
| Set Priority Mask. | |
| __STATIC_INLINE uint32_t | __get_BASEPRI (void) |
| Get Base Priority. | |
| __STATIC_INLINE void | __set_BASEPRI (uint32_t basePri) |
| Set Base Priority. | |
| __STATIC_INLINE uint32_t | __get_FAULTMASK (void) |
| Get Fault Mask. | |
| __STATIC_INLINE void | __set_FAULTMASK (uint32_t faultMask) |
| Set Fault Mask. | |
| __STATIC_INLINE uint32_t | __get_FPSCR (void) |
| Get FPSCR. | |
| __STATIC_INLINE void | __set_FPSCR (uint32_t fpscr) |
| Set FPSCR. | |
| __attribute__ ((always_inline)) __STATIC_INLINE void __enable_irq(void) | |
| Enable IRQ Interrupts. | |
Function Documentation
| __attribute__ | ( | (always_inline) | ) |
Enable IRQ Interrupts.
Rotate Right in unsigned value (32 bit)
Reverse byte order in signed short value.
Reverse byte order (16 bit)
Reverse byte order (32 bit)
Data Memory Barrier.
Data Synchronization Barrier.
Instruction Synchronization Barrier.
Send Event.
Wait For Event.
Wait For Interrupt.
Set FPSCR.
Get FPSCR.
Set Fault Mask.
Get Fault Mask.
Set Base Priority.
Get Base Priority.
Disable FIQ.
Enable FIQ.
Set Priority Mask.
Get Priority Mask.
Set Main Stack Pointer.
Get Main Stack Pointer.
Set Process Stack Pointer.
Get Process Stack Pointer.
Get xPSR Register.
Get APSR Register.
Get IPSR Register.
Set Control Register.
Get Control Register.
Disable IRQ Interrupts.
This function enables IRQ interrupts by clearing the I-bit in the CPSR. Can only be executed in Privileged modes.
This function disables IRQ interrupts by setting the I-bit in the CPSR. Can only be executed in Privileged modes.
This function returns the content of the Control Register.
- Returns:
- Control Register value
This function writes the given value to the Control Register.
- Parameters:
-
[in] control Control Register value to set
This function returns the content of the IPSR Register.
- Returns:
- IPSR Register value
This function returns the content of the APSR Register.
- Returns:
- APSR Register value
This function returns the content of the xPSR Register.
- Returns:
- xPSR Register value
This function returns the current value of the Process Stack Pointer (PSP).
- Returns:
- PSP Register value
This function assigns the given value to the Process Stack Pointer (PSP).
- Parameters:
-
[in] topOfProcStack Process Stack Pointer value to set
This function returns the current value of the Main Stack Pointer (MSP).
- Returns:
- MSP Register value
This function assigns the given value to the Main Stack Pointer (MSP).
- Parameters:
-
[in] topOfMainStack Main Stack Pointer value to set
This function returns the current state of the priority mask bit from the Priority Mask Register.
- Returns:
- Priority Mask value
This function assigns the given value to the Priority Mask Register.
- Parameters:
-
[in] priMask Priority Mask
This function enables FIQ interrupts by clearing the F-bit in the CPSR. Can only be executed in Privileged modes.
This function disables FIQ interrupts by setting the F-bit in the CPSR. Can only be executed in Privileged modes.
This function returns the current value of the Base Priority register.
- Returns:
- Base Priority register value
This function assigns the given value to the Base Priority register.
- Parameters:
-
[in] basePri Base Priority value to set
This function returns the current value of the Fault Mask register.
- Returns:
- Fault Mask register value
This function assigns the given value to the Fault Mask register.
- Parameters:
-
[in] faultMask Fault Mask value to set
This function returns the current value of the Floating Point Status/Control register.
- Returns:
- Floating Point Status/Control register value
This function assigns the given value to the Floating Point Status/Control register.
- Parameters:
-
[in] fpscr Floating Point Status/Control value to set
Wait For Interrupt is a hint instruction that suspends execution until one of a number of events occurs.
Wait For Event is a hint instruction that permits the processor to enter a low-power state until one of a number of events occurs.
Send Event is a hint instruction. It causes an event to be signaled to the CPU.
Instruction Synchronization Barrier flushes the pipeline in the processor, so that all instructions following the ISB are fetched from cache or memory, after the instruction has been completed.
This function acts as a special kind of Data Memory Barrier. It completes when all explicit memory accesses before this instruction complete.
This function ensures the apparent order of the explicit memory operations before and after the instruction, without ensuring their completion.
This function reverses the byte order in integer value.
- Parameters:
-
[in] value Value to reverse
- Returns:
- Reversed value
This function reverses the byte order in two unsigned short values.
- Parameters:
-
[in] value Value to reverse
- Returns:
- Reversed value
This function reverses the byte order in a signed short value with sign extension to integer.
- Parameters:
-
[in] value Value to reverse
- Returns:
- Reversed value
This function Rotate Right (immediate) provides the value of the contents of a register rotated by a variable number of bits.
- Parameters:
-
[in] value Value to rotate [in] value Number of Bits to rotate
- Returns:
- Rotated value
Definition at line 329 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_APSR | ( | void | ) |
Get APSR Register.
This function returns the content of the APSR Register.
- Returns:
- APSR Register value
Definition at line 103 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_BASEPRI | ( | void | ) |
Get Base Priority.
This function returns the current value of the Base Priority register.
- Returns:
- Base Priority register value
Definition at line 225 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_CONTROL | ( | void | ) |
Get Control Register.
This function returns the content of the Control Register.
- Returns:
- Control Register value
Definition at line 64 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_FAULTMASK | ( | void | ) |
Get Fault Mask.
This function returns the current value of the Fault Mask register.
- Returns:
- Fault Mask register value
Definition at line 251 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_FPSCR | ( | void | ) |
Get FPSCR.
This function returns the current value of the Floating Point Status/Control register.
- Returns:
- Floating Point Status/Control register value
Definition at line 281 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_IPSR | ( | void | ) |
Get IPSR Register.
This function returns the content of the IPSR Register.
- Returns:
- IPSR Register value
Definition at line 90 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_MSP | ( | void | ) |
Get Main Stack Pointer.
This function returns the current value of the Main Stack Pointer (MSP).
- Returns:
- MSP Register value
Definition at line 155 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_PRIMASK | ( | void | ) |
Get Priority Mask.
This function returns the current state of the priority mask bit from the Priority Mask Register.
- Returns:
- Priority Mask value
Definition at line 181 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_PSP | ( | void | ) |
Get Process Stack Pointer.
This function returns the current value of the Process Stack Pointer (PSP).
- Returns:
- PSP Register value
Definition at line 129 of file core_cmFunc.h.
| __STATIC_INLINE uint32_t __get_xPSR | ( | void | ) |
Get xPSR Register.
This function returns the content of the xPSR Register.
- Returns:
- xPSR Register value
Definition at line 116 of file core_cmFunc.h.
| __STATIC_INLINE void __set_BASEPRI | ( | uint32_t | basePri ) |
Set Base Priority.
This function assigns the given value to the Base Priority register.
- Parameters:
-
[in] basePri Base Priority value to set
Definition at line 238 of file core_cmFunc.h.
| __STATIC_INLINE void __set_CONTROL | ( | uint32_t | control ) |
Set Control Register.
This function writes the given value to the Control Register.
- Parameters:
-
[in] control Control Register value to set
Definition at line 77 of file core_cmFunc.h.
| __STATIC_INLINE void __set_FAULTMASK | ( | uint32_t | faultMask ) |
Set Fault Mask.
This function assigns the given value to the Fault Mask register.
- Parameters:
-
[in] faultMask Fault Mask value to set
Definition at line 264 of file core_cmFunc.h.
| __STATIC_INLINE void __set_FPSCR | ( | uint32_t | fpscr ) |
Set FPSCR.
This function assigns the given value to the Floating Point Status/Control register.
- Parameters:
-
[in] fpscr Floating Point Status/Control value to set
Definition at line 298 of file core_cmFunc.h.
| __STATIC_INLINE void __set_MSP | ( | uint32_t | topOfMainStack ) |
Set Main Stack Pointer.
This function assigns the given value to the Main Stack Pointer (MSP).
- Parameters:
-
[in] topOfMainStack Main Stack Pointer value to set
Definition at line 168 of file core_cmFunc.h.
| __STATIC_INLINE void __set_PRIMASK | ( | uint32_t | priMask ) |
Set Priority Mask.
This function assigns the given value to the Priority Mask Register.
- Parameters:
-
[in] priMask Priority Mask
Definition at line 194 of file core_cmFunc.h.
| __STATIC_INLINE void __set_PSP | ( | uint32_t | topOfProcStack ) |
Set Process Stack Pointer.
This function assigns the given value to the Process Stack Pointer (PSP).
- Parameters:
-
[in] topOfProcStack Process Stack Pointer value to set
Definition at line 142 of file core_cmFunc.h.
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