core_cm3.h

UCOS-III

#define CoreDebug           ((CoreDebug_Type *)     CoreDebug_BASE)   /*!< Core Debug configuration struct   */

#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1)
  #define MPU_BASE          (SCS_BASE +  0x0D90)                      /*!< Memory Protection Unit            */
  #define MPU               ((MPU_Type*)            MPU_BASE)         /*!< Memory Protection Unit            */
#endif

/*@}*/ /* end of group CMSIS_CM3_core_register */


/*******************************************************************************
 *                Hardware Abstraction Layer
 ******************************************************************************/

#if defined ( __CC_ARM   )
  #define __ASM            __asm                                      /*!< asm keyword for ARM Compiler          */
  #define __INLINE         __inline                                   /*!< inline keyword for ARM Compiler       */

#elif defined ( __ICCARM__ )
  #define __ASM           __asm                                       /*!< asm keyword for IAR Compiler          */
  #define __INLINE        inline                                      /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */

#elif defined   (  __GNUC__  )
  #define __ASM            __asm                                      /*!< asm keyword for GNU Compiler          */
  #define __INLINE         inline                                     /*!< inline keyword for GNU Compiler       */

#elif defined   (  __TASKING__  )
  #define __ASM            __asm                                      /*!< asm keyword for TASKING Compiler      */
  #define __INLINE         inline                                     /*!< inline keyword for TASKING Compiler   */

#endif


/* ###################  Compiler specific Intrinsics  ########################### */

#if defined ( __CC_ARM   ) /*------------------RealView Compiler -----------------*/
/* ARM armcc specific functions */

#define __enable_fault_irq                __enable_fiq
#define __disable_fault_irq               __disable_fiq

#define __NOP                             __nop
#define __WFI                             __wfi
#define __WFE                             __wfe
#define __SEV                             __sev
#define __ISB()                           __isb(0)
#define __DSB()                           __dsb(0)
#define __DMB()                           __dmb(0)
#define __REV                             __rev
#define __RBIT                            __rbit
#define __LDREXB(ptr)                     ((unsigned char ) __ldrex(ptr))
#define __LDREXH(ptr)                     ((unsigned short) __ldrex(ptr))
#define __LDREXW(ptr)                     ((unsigned int  ) __ldrex(ptr))
#define __STREXB(value, ptr)              __strex(value, ptr)
#define __STREXH(value, ptr)              __strex(value, ptr)
#define __STREXW(value, ptr)              __strex(value, ptr)


/* intrinsic unsigned long long __ldrexd(volatile void *ptr) */
/* intrinsic int __strexd(unsigned long long val, volatile void *ptr) */
/* intrinsic void __enable_irq();     */
/* intrinsic void __disable_irq();    */


/**
 * @brief  Return the Process Stack Pointer
 *
 * @return ProcessStackPointer
 *
 * Return the actual process stack pointer
 */
extern uint32_t __get_PSP(void);

/**
 * @brief  Set the Process Stack Pointer
 *
 * @param  topOfProcStack  Process Stack Pointer
 *
 * Assign the value ProcessStackPointer to the MSP 
 * (process stack pointer) Cortex processor register
 */
extern void __set_PSP(uint32_t topOfProcStack);

/**
 * @brief  Return the Main Stack Pointer
 *
 * @return Main Stack Pointer
 *
 * Return the current value of the MSP (main stack pointer)
 * Cortex processor register
 */
extern uint32_t __get_MSP(void);

/**
 * @brief  Set the Main Stack Pointer
 *
 * @param  topOfMainStack  Main Stack Pointer
 *
 * Assign the value mainStackPointer to the MSP 
 * (main stack pointer) Cortex processor register
 */
extern void __set_MSP(uint32_t topOfMainStack);

/**
 * @brief  Reverse byte order in unsigned short value
 *
 * @param   value  value to reverse
 * @return         reversed value
 *
 * Reverse byte order in unsigned short value
 */
extern uint32_t __REV16(uint16_t value);

/**
 * @brief  Reverse byte order in signed short value with sign extension to integer
 *
 * @param   value  value to reverse
 * @return         reversed value
 *
 * Reverse byte order in signed short value with sign extension to integer
 */
extern int32_t __REVSH(int16_t value);


#if (__ARMCC_VERSION < 400000)

/**
 * @brief  Remove the exclusive lock created by ldrex
 *
 * Removes the exclusive lock which is created by ldrex.
 */
extern void __CLREX(void);

/**
 * @brief  Return the Base Priority value
 *
 * @return BasePriority
 *
 * Return the content of the base priority register
 */
extern uint32_t __get_BASEPRI(void);

/**
 * @brief  Set the Base Priority value
 *
 * @param  basePri  BasePriority
 *
 * Set the base priority register
 */
extern void __set_BASEPRI(uint32_t basePri);

/**
 * @brief  Return the Priority Mask value
 *
 * @return PriMask
 *
 * Return state of the priority mask bit from the priority mask register
 */
extern uint32_t __get_PRIMASK(void);

/**
 * @brief  Set the Priority Mask value
 *
 * @param   priMask  PriMask
 *
 * Set the priority mask bit in the priority mask register
 */
extern void __set_PRIMASK(uint32_t priMask);

/**
 * @brief  Return the Fault Mask value
 *
 * @return FaultMask
 *
 * Return the content of the fault mask register
 */
extern uint32_t __get_FAULTMASK(void);

/**
 * @brief  Set the Fault Mask value
 *
 * @param  faultMask faultMask value
 *
 * Set the fault mask register
 */
extern void __set_FAULTMASK(uint32_t faultMask);

/**
 * @brief  Return the Control Register value
 * 
 * @return Control value
 *
 * Return the content of the control register
 */
extern uint32_t __get_CONTROL(void);

/**
 * @brief  Set the Control Register value
 *
 * @param  control  Control value
 *
 * Set the control register
 */
extern void __set_CONTROL(uint32_t control);

#else  /* (__ARMCC_VERSION >= 400000)  */

/**
 * @brief  Remove the exclusive lock created by ldrex
 *
 * Removes the exclusive lock which is created by ldrex.
 */
#define __CLREX                           __clrex

/**
 * @brief  Return the Base Priority value
 *
 * @return BasePriority
 *
 * Return the content of the base priority register
 */
static __INLINE uint32_t  __get_BASEPRI(void)
{
  register uint32_t __regBasePri         __ASM("basepri");
  return(__regBasePri);
}

/**
 * @brief  Set the Base Priority value
 *
 * @param  basePri  BasePriority
 *
 * Set the base priority register
 */
static __INLINE void __set_BASEPRI(uint32_t basePri)
{
  register uint32_t __regBasePri         __ASM("basepri");
  __regBasePri = (basePri & 0xff);
}

/**
 * @brief  Return the Priority Mask value