830 lines
17 KiB
C
830 lines
17 KiB
C
|
/******************************************************************************
|
||
|
* @file: core_cm3.c
|
||
|
* @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Source File
|
||
|
* @version: V1.20
|
||
|
* @date: 22. May 2009
|
||
|
*----------------------------------------------------------------------------
|
||
|
*
|
||
|
* Copyright (C) 2009 ARM Limited. All rights reserved.
|
||
|
*
|
||
|
* ARM Limited (ARM) is supplying this software for use with Cortex-Mx
|
||
|
* processor based microcontrollers. This file can be freely distributed
|
||
|
* within development tools that are supporting such ARM based processors.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||
|
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||
|
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||
|
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||
|
*
|
||
|
******************************************************************************/
|
||
|
|
||
|
|
||
|
|
||
|
#include <stdint.h>
|
||
|
|
||
|
|
||
|
/* define compiler specific symbols */
|
||
|
#if defined ( __CC_ARM )
|
||
|
#define __ASM __asm /*!< asm keyword for armcc */
|
||
|
#define __INLINE __inline /*!< inline keyword for armcc */
|
||
|
|
||
|
#elif defined ( __ICCARM__ )
|
||
|
#define __ASM __asm /*!< asm keyword for iarcc */
|
||
|
#define __INLINE inline /*!< inline keyword for iarcc. Only avaiable in High optimization mode! */
|
||
|
|
||
|
#elif defined ( __GNUC__ )
|
||
|
#define __ASM __asm /*!< asm keyword for gcc */
|
||
|
#define __INLINE inline /*!< inline keyword for gcc */
|
||
|
|
||
|
#elif defined ( __TASKING__ )
|
||
|
#define __ASM __asm /*!< asm keyword for TASKING Compiler */
|
||
|
#define __INLINE inline /*!< inline keyword for TASKING Compiler */
|
||
|
|
||
|
#endif
|
||
|
|
||
|
|
||
|
|
||
|
#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Process Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t ProcessStackPointer
|
||
|
*
|
||
|
* Return the actual process stack pointer
|
||
|
*/
|
||
|
__ASM uint32_t __get_PSP(void)
|
||
|
{
|
||
|
mrs r0, psp
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Process Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Process Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value ProcessStackPointer to the MSP
|
||
|
* (process stack pointer) Cortex processor register
|
||
|
*/
|
||
|
__ASM void __set_PSP(uint32_t topOfProcStack)
|
||
|
{
|
||
|
msr psp, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Main Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t Main Stack Pointer
|
||
|
*
|
||
|
* Return the current value of the MSP (main stack pointer)
|
||
|
* Cortex processor register
|
||
|
*/
|
||
|
__ASM uint32_t __get_MSP(void)
|
||
|
{
|
||
|
mrs r0, msp
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Main Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Main Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value mainStackPointer to the MSP
|
||
|
* (main stack pointer) Cortex processor register
|
||
|
*/
|
||
|
__ASM void __set_MSP(uint32_t mainStackPointer)
|
||
|
{
|
||
|
msr msp, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in unsigned short value
|
||
|
*
|
||
|
* @param uint16_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in unsigned short value
|
||
|
*/
|
||
|
__ASM uint32_t __REV16(uint16_t value)
|
||
|
{
|
||
|
rev16 r0, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in signed short value with sign extension to integer
|
||
|
*
|
||
|
* @param int16_t value to reverse
|
||
|
* @return int32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in signed short value with sign extension to integer
|
||
|
*/
|
||
|
__ASM int32_t __REVSH(int16_t value)
|
||
|
{
|
||
|
revsh r0, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
|
||
|
#if (__ARMCC_VERSION < 400000)
|
||
|
|
||
|
/**
|
||
|
* @brief Remove the exclusive lock created by ldrex
|
||
|
*
|
||
|
* @param none
|
||
|
* @return none
|
||
|
*
|
||
|
* Removes the exclusive lock which is created by ldrex.
|
||
|
*/
|
||
|
__ASM void __CLREX(void)
|
||
|
{
|
||
|
clrex
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Base Priority value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t BasePriority
|
||
|
*
|
||
|
* Return the content of the base priority register
|
||
|
*/
|
||
|
__ASM uint32_t __get_BASEPRI(void)
|
||
|
{
|
||
|
mrs r0, basepri
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Base Priority value
|
||
|
*
|
||
|
* @param uint32_t BasePriority
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the base priority register
|
||
|
*/
|
||
|
__ASM void __set_BASEPRI(uint32_t basePri)
|
||
|
{
|
||
|
msr basepri, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Priority Mask value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t PriMask
|
||
|
*
|
||
|
* Return the state of the priority mask bit from the priority mask
|
||
|
* register
|
||
|
*/
|
||
|
__ASM uint32_t __get_PRIMASK(void)
|
||
|
{
|
||
|
mrs r0, primask
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Priority Mask value
|
||
|
*
|
||
|
* @param uint32_t PriMask
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the priority mask bit in the priority mask register
|
||
|
*/
|
||
|
__ASM void __set_PRIMASK(uint32_t priMask)
|
||
|
{
|
||
|
msr primask, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Fault Mask value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t FaultMask
|
||
|
*
|
||
|
* Return the content of the fault mask register
|
||
|
*/
|
||
|
__ASM uint32_t __get_FAULTMASK(void)
|
||
|
{
|
||
|
mrs r0, faultmask
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Fault Mask value
|
||
|
*
|
||
|
* @param uint32_t faultMask value
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the fault mask register
|
||
|
*/
|
||
|
__ASM void __set_FAULTMASK(uint32_t faultMask)
|
||
|
{
|
||
|
msr faultmask, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Control Register value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t Control value
|
||
|
*
|
||
|
* Return the content of the control register
|
||
|
*/
|
||
|
__ASM uint32_t __get_CONTROL(void)
|
||
|
{
|
||
|
mrs r0, control
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Control Register value
|
||
|
*
|
||
|
* @param uint32_t Control value
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the control register
|
||
|
*/
|
||
|
__ASM void __set_CONTROL(uint32_t control)
|
||
|
{
|
||
|
msr control, r0
|
||
|
bx lr
|
||
|
}
|
||
|
|
||
|
#endif /* __ARMCC_VERSION */
|
||
|
|
||
|
|
||
|
#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/
|
||
|
#pragma diag_suppress=Pe940
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Process Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t ProcessStackPointer
|
||
|
*
|
||
|
* Return the actual process stack pointer
|
||
|
*/
|
||
|
uint32_t __get_PSP(void)
|
||
|
{
|
||
|
__ASM("mrs r0, psp");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Process Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Process Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value ProcessStackPointer to the MSP
|
||
|
* (process stack pointer) Cortex processor register
|
||
|
*/
|
||
|
void __set_PSP(uint32_t topOfProcStack)
|
||
|
{
|
||
|
__ASM("msr psp, r0");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Main Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t Main Stack Pointer
|
||
|
*
|
||
|
* Return the current value of the MSP (main stack pointer)
|
||
|
* Cortex processor register
|
||
|
*/
|
||
|
uint32_t __get_MSP(void)
|
||
|
{
|
||
|
__ASM("mrs r0, msp");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Main Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Main Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value mainStackPointer to the MSP
|
||
|
* (main stack pointer) Cortex processor register
|
||
|
*/
|
||
|
void __set_MSP(uint32_t topOfMainStack)
|
||
|
{
|
||
|
__ASM("msr msp, r0");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in unsigned short value
|
||
|
*
|
||
|
* @param uint16_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in unsigned short value
|
||
|
*/
|
||
|
uint32_t __REV16(uint16_t value)
|
||
|
{
|
||
|
__ASM("rev16 r0, r0");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse bit order of value
|
||
|
*
|
||
|
* @param uint32_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse bit order of value
|
||
|
*/
|
||
|
uint32_t __RBIT(uint32_t value)
|
||
|
{
|
||
|
__ASM("rbit r0, r0");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint8_t* address
|
||
|
* @return uint8_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint8_t __LDREXB(uint8_t *addr)
|
||
|
{
|
||
|
__ASM("ldrexb r0, [r0]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint16_t* address
|
||
|
* @return uint16_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint16_t __LDREXH(uint16_t *addr)
|
||
|
{
|
||
|
__ASM("ldrexh r0, [r0]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint32_t* address
|
||
|
* @return uint32_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint32_t __LDREXW(uint32_t *addr)
|
||
|
{
|
||
|
__ASM("ldrex r0, [r0]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint8_t *address
|
||
|
* @param uint8_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXB(uint8_t value, uint8_t *addr)
|
||
|
{
|
||
|
__ASM("strexb r0, r0, [r1]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint16_t *address
|
||
|
* @param uint16_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXH(uint16_t value, uint16_t *addr)
|
||
|
{
|
||
|
__ASM("strexh r0, r0, [r1]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint32_t *address
|
||
|
* @param uint32_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXW(uint32_t value, uint32_t *addr)
|
||
|
{
|
||
|
__ASM("strex r0, r0, [r1]");
|
||
|
__ASM("bx lr");
|
||
|
}
|
||
|
|
||
|
#pragma diag_default=Pe940
|
||
|
|
||
|
|
||
|
#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Process Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t ProcessStackPointer
|
||
|
*
|
||
|
* Return the actual process stack pointer
|
||
|
*/
|
||
|
uint32_t __get_PSP(void) __attribute__( ( naked ) );
|
||
|
uint32_t __get_PSP(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, psp\n\t"
|
||
|
"MOV r0, %0 \n\t"
|
||
|
"BX lr \n\t" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Process Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Process Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value ProcessStackPointer to the MSP
|
||
|
* (process stack pointer) Cortex processor register
|
||
|
*/
|
||
|
void __set_PSP(uint32_t topOfProcStack) __attribute__( ( naked ) );
|
||
|
void __set_PSP(uint32_t topOfProcStack)
|
||
|
{
|
||
|
__ASM volatile ("MSR psp, %0\n\t"
|
||
|
"BX lr \n\t" : : "r" (topOfProcStack) );
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Main Stack Pointer
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t Main Stack Pointer
|
||
|
*
|
||
|
* Return the current value of the MSP (main stack pointer)
|
||
|
* Cortex processor register
|
||
|
*/
|
||
|
uint32_t __get_MSP(void) __attribute__( ( naked ) );
|
||
|
uint32_t __get_MSP(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, msp\n\t"
|
||
|
"MOV r0, %0 \n\t"
|
||
|
"BX lr \n\t" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Main Stack Pointer
|
||
|
*
|
||
|
* @param uint32_t Main Stack Pointer
|
||
|
* @return none
|
||
|
*
|
||
|
* Assign the value mainStackPointer to the MSP
|
||
|
* (main stack pointer) Cortex processor register
|
||
|
*/
|
||
|
void __set_MSP(uint32_t topOfMainStack) __attribute__( ( naked ) );
|
||
|
void __set_MSP(uint32_t topOfMainStack)
|
||
|
{
|
||
|
__ASM volatile ("MSR msp, %0\n\t"
|
||
|
"BX lr \n\t" : : "r" (topOfMainStack) );
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Base Priority value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t BasePriority
|
||
|
*
|
||
|
* Return the content of the base priority register
|
||
|
*/
|
||
|
uint32_t __get_BASEPRI(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, basepri_max" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Base Priority value
|
||
|
*
|
||
|
* @param uint32_t BasePriority
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the base priority register
|
||
|
*/
|
||
|
void __set_BASEPRI(uint32_t value)
|
||
|
{
|
||
|
__ASM volatile ("MSR basepri, %0" : : "r" (value) );
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Priority Mask value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t PriMask
|
||
|
*
|
||
|
* Return the state of the priority mask bit from the priority mask
|
||
|
* register
|
||
|
*/
|
||
|
uint32_t __get_PRIMASK(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, primask" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Priority Mask value
|
||
|
*
|
||
|
* @param uint32_t PriMask
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the priority mask bit in the priority mask register
|
||
|
*/
|
||
|
void __set_PRIMASK(uint32_t priMask)
|
||
|
{
|
||
|
__ASM volatile ("MSR primask, %0" : : "r" (priMask) );
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Fault Mask value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t FaultMask
|
||
|
*
|
||
|
* Return the content of the fault mask register
|
||
|
*/
|
||
|
uint32_t __get_FAULTMASK(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, faultmask" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Fault Mask value
|
||
|
*
|
||
|
* @param uint32_t faultMask value
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the fault mask register
|
||
|
*/
|
||
|
void __set_FAULTMASK(uint32_t faultMask)
|
||
|
{
|
||
|
__ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) );
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in integer value
|
||
|
*
|
||
|
* @param uint32_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in integer value
|
||
|
*/
|
||
|
uint32_t __REV(uint32_t value)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in unsigned short value
|
||
|
*
|
||
|
* @param uint16_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in unsigned short value
|
||
|
*/
|
||
|
uint32_t __REV16(uint16_t value)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse byte order in signed short value with sign extension to integer
|
||
|
*
|
||
|
* @param int32_t value to reverse
|
||
|
* @return int32_t reversed value
|
||
|
*
|
||
|
* Reverse byte order in signed short value with sign extension to integer
|
||
|
*/
|
||
|
int32_t __REVSH(int16_t value)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Reverse bit order of value
|
||
|
*
|
||
|
* @param uint32_t value to reverse
|
||
|
* @return uint32_t reversed value
|
||
|
*
|
||
|
* Reverse bit order of value
|
||
|
*/
|
||
|
uint32_t __RBIT(uint32_t value)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint8_t* address
|
||
|
* @return uint8_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint8_t __LDREXB(uint8_t *addr)
|
||
|
{
|
||
|
uint8_t result=0;
|
||
|
|
||
|
__ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint16_t* address
|
||
|
* @return uint16_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint16_t __LDREXH(uint16_t *addr)
|
||
|
{
|
||
|
uint16_t result=0;
|
||
|
|
||
|
__ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief LDR Exclusive
|
||
|
*
|
||
|
* @param uint32_t* address
|
||
|
* @return uint32_t value of (*address)
|
||
|
*
|
||
|
* Exclusive LDR command
|
||
|
*/
|
||
|
uint32_t __LDREXW(uint32_t *addr)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("ldrex %0, [%1]" : "=r" (result) : "r" (addr) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint8_t *address
|
||
|
* @param uint8_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXB(uint8_t value, uint8_t *addr)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint16_t *address
|
||
|
* @param uint16_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXH(uint16_t value, uint16_t *addr)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief STR Exclusive
|
||
|
*
|
||
|
* @param uint32_t *address
|
||
|
* @param uint32_t value to store
|
||
|
* @return uint32_t successful / failed
|
||
|
*
|
||
|
* Exclusive STR command
|
||
|
*/
|
||
|
uint32_t __STREXW(uint32_t value, uint32_t *addr)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the Control Register value
|
||
|
*
|
||
|
* @param none
|
||
|
* @return uint32_t Control value
|
||
|
*
|
||
|
* Return the content of the control register
|
||
|
*/
|
||
|
uint32_t __get_CONTROL(void)
|
||
|
{
|
||
|
uint32_t result=0;
|
||
|
|
||
|
__ASM volatile ("MRS %0, control" : "=r" (result) );
|
||
|
return(result);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Set the Control Register value
|
||
|
*
|
||
|
* @param uint32_t Control value
|
||
|
* @return none
|
||
|
*
|
||
|
* Set the control register
|
||
|
*/
|
||
|
void __set_CONTROL(uint32_t control)
|
||
|
{
|
||
|
__ASM volatile ("MSR control, %0" : : "r" (control) );
|
||
|
}
|
||
|
|
||
|
#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/
|
||
|
/* TASKING carm specific functions */
|
||
|
|
||
|
/*
|
||
|
* The CMSIS functions have been implemented as intrinsics in the compiler.
|
||
|
* Please use "carm -?i" to get an up to date list of all instrinsics,
|
||
|
* Including the CMSIS ones.
|
||
|
*/
|
||
|
|
||
|
#endif
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|