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liyongjie
2024-01-09 17:33:02 +08:00
parent 9bdde73f34
commit a63fb1a716
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lib/cmsis-core/cachel1_armv7.h
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/******************************************************************************
* @file cachel1_armv7.h
* @brief CMSIS Level 1 Cache API for Armv7-M and later
* @version V1.0.0
* @date 03. March 2020
******************************************************************************/
/*
* Copyright (c) 2020 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#ifndef ARM_CACHEL1_ARMV7_H
#define ARM_CACHEL1_ARMV7_H
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_CacheFunctions Cache Functions
\brief Functions that configure Instruction and Data cache.
@{
*/
/* Cache Size ID Register Macros */
#define CCSIDR_WAYS(x) (((x) & SCB_CCSIDR_ASSOCIATIVITY_Msk) >> SCB_CCSIDR_ASSOCIATIVITY_Pos)
#define CCSIDR_SETS(x) (((x) & SCB_CCSIDR_NUMSETS_Msk ) >> SCB_CCSIDR_NUMSETS_Pos )
#ifndef __SCB_DCACHE_LINE_SIZE
#define __SCB_DCACHE_LINE_SIZE 32U /*!< Cortex-M7 cache line size is fixed to 32 bytes (8 words). See also register SCB_CCSIDR */
#endif
#ifndef __SCB_ICACHE_LINE_SIZE
#define __SCB_ICACHE_LINE_SIZE 32U /*!< Cortex-M7 cache line size is fixed to 32 bytes (8 words). See also register SCB_CCSIDR */
#endif
/**
\brief Enable I-Cache
\details Turns on I-Cache
*/
__STATIC_FORCEINLINE void SCB_EnableICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
if (SCB->CCR & SCB_CCR_IC_Msk) return; /* return if ICache is already enabled */
__DSB();
__ISB();
SCB->ICIALLU = 0UL; /* invalidate I-Cache */
__DSB();
__ISB();
SCB->CCR |= (uint32_t)SCB_CCR_IC_Msk; /* enable I-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Disable I-Cache
\details Turns off I-Cache
*/
__STATIC_FORCEINLINE void SCB_DisableICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
__DSB();
__ISB();
SCB->CCR &= ~(uint32_t)SCB_CCR_IC_Msk; /* disable I-Cache */
SCB->ICIALLU = 0UL; /* invalidate I-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Invalidate I-Cache
\details Invalidates I-Cache
*/
__STATIC_FORCEINLINE void SCB_InvalidateICache (void)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
__DSB();
__ISB();
SCB->ICIALLU = 0UL;
__DSB();
__ISB();
#endif
}
/**
\brief I-Cache Invalidate by address
\details Invalidates I-Cache for the given address.
I-Cache is invalidated starting from a 32 byte aligned address in 32 byte granularity.
I-Cache memory blocks which are part of given address + given size are invalidated.
\param[in] addr address
\param[in] isize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_InvalidateICache_by_Addr (void *addr, int32_t isize)
{
#if defined (__ICACHE_PRESENT) && (__ICACHE_PRESENT == 1U)
if ( isize > 0 ) {
int32_t op_size = isize + (((uint32_t)addr) & (__SCB_ICACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_ICACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->ICIMVAU = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_ICACHE_LINE_SIZE;
op_size -= __SCB_ICACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief Enable D-Cache
\details Turns on D-Cache
*/
__STATIC_FORCEINLINE void SCB_EnableDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
if (SCB->CCR & SCB_CCR_DC_Msk) return; /* return if DCache is already enabled */
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCISW = (((sets << SCB_DCISW_SET_Pos) & SCB_DCISW_SET_Msk) |
((ways << SCB_DCISW_WAY_Pos) & SCB_DCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
SCB->CCR |= (uint32_t)SCB_CCR_DC_Msk; /* enable D-Cache */
__DSB();
__ISB();
#endif
}
/**
\brief Disable D-Cache
\details Turns off D-Cache
*/
__STATIC_FORCEINLINE void SCB_DisableDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
SCB->CCR &= ~(uint32_t)SCB_CCR_DC_Msk; /* disable D-Cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* clean & invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCCISW = (((sets << SCB_DCCISW_SET_Pos) & SCB_DCCISW_SET_Msk) |
((ways << SCB_DCCISW_WAY_Pos) & SCB_DCCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Invalidate D-Cache
\details Invalidates D-Cache
*/
__STATIC_FORCEINLINE void SCB_InvalidateDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCISW = (((sets << SCB_DCISW_SET_Pos) & SCB_DCISW_SET_Msk) |
((ways << SCB_DCISW_WAY_Pos) & SCB_DCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Clean D-Cache
\details Cleans D-Cache
*/
__STATIC_FORCEINLINE void SCB_CleanDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* clean D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCCSW = (((sets << SCB_DCCSW_SET_Pos) & SCB_DCCSW_SET_Msk) |
((ways << SCB_DCCSW_WAY_Pos) & SCB_DCCSW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief Clean & Invalidate D-Cache
\details Cleans and Invalidates D-Cache
*/
__STATIC_FORCEINLINE void SCB_CleanInvalidateDCache (void)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
uint32_t ccsidr;
uint32_t sets;
uint32_t ways;
SCB->CSSELR = 0U; /* select Level 1 data cache */
__DSB();
ccsidr = SCB->CCSIDR;
/* clean & invalidate D-Cache */
sets = (uint32_t)(CCSIDR_SETS(ccsidr));
do {
ways = (uint32_t)(CCSIDR_WAYS(ccsidr));
do {
SCB->DCCISW = (((sets << SCB_DCCISW_SET_Pos) & SCB_DCCISW_SET_Msk) |
((ways << SCB_DCCISW_WAY_Pos) & SCB_DCCISW_WAY_Msk) );
#if defined ( __CC_ARM )
__schedule_barrier();
#endif
} while (ways-- != 0U);
} while(sets-- != 0U);
__DSB();
__ISB();
#endif
}
/**
\brief D-Cache Invalidate by address
\details Invalidates D-Cache for the given address.
D-Cache is invalidated starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are invalidated.
\param[in] addr address
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_InvalidateDCache_by_Addr (void *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCIMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief D-Cache Clean by address
\details Cleans D-Cache for the given address
D-Cache is cleaned starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are cleaned.
\param[in] addr address
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_CleanDCache_by_Addr (uint32_t *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCCMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/**
\brief D-Cache Clean and Invalidate by address
\details Cleans and invalidates D_Cache for the given address
D-Cache is cleaned and invalidated starting from a 32 byte aligned address in 32 byte granularity.
D-Cache memory blocks which are part of given address + given size are cleaned and invalidated.
\param[in] addr address (aligned to 32-byte boundary)
\param[in] dsize size of memory block (in number of bytes)
*/
__STATIC_FORCEINLINE void SCB_CleanInvalidateDCache_by_Addr (uint32_t *addr, int32_t dsize)
{
#if defined (__DCACHE_PRESENT) && (__DCACHE_PRESENT == 1U)
if ( dsize > 0 ) {
int32_t op_size = dsize + (((uint32_t)addr) & (__SCB_DCACHE_LINE_SIZE - 1U));
uint32_t op_addr = (uint32_t)addr /* & ~(__SCB_DCACHE_LINE_SIZE - 1U) */;
__DSB();
do {
SCB->DCCIMVAC = op_addr; /* register accepts only 32byte aligned values, only bits 31..5 are valid */
op_addr += __SCB_DCACHE_LINE_SIZE;
op_size -= __SCB_DCACHE_LINE_SIZE;
} while ( op_size > 0 );
__DSB();
__ISB();
}
#endif
}
/*@} end of CMSIS_Core_CacheFunctions */
#endif /* ARM_CACHEL1_ARMV7_H */
lib/cmsis-core/cmsis_compiler.h
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/**************************************************************************//**
* @file cmsis_compiler.h
* @brief CMSIS compiler generic header file
* @version V5.1.0
* @date 09. October 2018
******************************************************************************/
/*
* Copyright (c) 2009-2018 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CMSIS_COMPILER_H
#define __CMSIS_COMPILER_H
#include <stdint.h>
/*
* Arm Compiler 4/5
*/
#if defined ( __CC_ARM )
#include "cmsis_armcc.h"
/*
* Arm Compiler 6.6 LTM (armclang)
*/
#elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) && (__ARMCC_VERSION < 6100100)
#include "cmsis_armclang_ltm.h"
/*
* Arm Compiler above 6.10.1 (armclang)
*/
#elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6100100)
#include "cmsis_armclang.h"
/*
* GNU Compiler
*/
#elif defined ( __GNUC__ )
#include "cmsis_gcc.h"
/*
* IAR Compiler
*/
#elif defined ( __ICCARM__ )
#include <cmsis_iccarm.h>
/*
* TI Arm Compiler
*/
#elif defined ( __TI_ARM__ )
#include <cmsis_ccs.h>
#ifndef __ASM
#define __ASM __asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
#define __NO_RETURN __attribute__((noreturn))
#endif
#ifndef __USED
#define __USED __attribute__((used))
#endif
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
#ifndef __PACKED
#define __PACKED __attribute__((packed))
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT struct __attribute__((packed))
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION union __attribute__((packed))
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
struct __attribute__((packed)) T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void*)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#define __ALIGNED(x) __attribute__((aligned(x)))
#endif
#ifndef __RESTRICT
#define __RESTRICT __restrict
#endif
#ifndef __COMPILER_BARRIER
#warning No compiler specific solution for __COMPILER_BARRIER. __COMPILER_BARRIER is ignored.
#define __COMPILER_BARRIER() (void)0
#endif
/*
* TASKING Compiler
*/
#elif defined ( __TASKING__ )
/*
* The CMSIS functions have been implemented as intrinsics in the compiler.
* Please use "carm -?i" to get an up to date list of all intrinsics,
* Including the CMSIS ones.
*/
#ifndef __ASM
#define __ASM __asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
#define __NO_RETURN __attribute__((noreturn))
#endif
#ifndef __USED
#define __USED __attribute__((used))
#endif
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
#ifndef __PACKED
#define __PACKED __packed__
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT struct __packed__
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION union __packed__
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
struct __packed__ T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#define __ALIGNED(x) __align(x)
#endif
#ifndef __RESTRICT
#warning No compiler specific solution for __RESTRICT. __RESTRICT is ignored.
#define __RESTRICT
#endif
#ifndef __COMPILER_BARRIER
#warning No compiler specific solution for __COMPILER_BARRIER. __COMPILER_BARRIER is ignored.
#define __COMPILER_BARRIER() (void)0
#endif
/*
* COSMIC Compiler
*/
#elif defined ( __CSMC__ )
#include <cmsis_csm.h>
#ifndef __ASM
#define __ASM _asm
#endif
#ifndef __INLINE
#define __INLINE inline
#endif
#ifndef __STATIC_INLINE
#define __STATIC_INLINE static inline
#endif
#ifndef __STATIC_FORCEINLINE
#define __STATIC_FORCEINLINE __STATIC_INLINE
#endif
#ifndef __NO_RETURN
// NO RETURN is automatically detected hence no warning here
#define __NO_RETURN
#endif
#ifndef __USED
#warning No compiler specific solution for __USED. __USED is ignored.
#define __USED
#endif
#ifndef __WEAK
#define __WEAK __weak
#endif
#ifndef __PACKED
#define __PACKED @packed
#endif
#ifndef __PACKED_STRUCT
#define __PACKED_STRUCT @packed struct
#endif
#ifndef __PACKED_UNION
#define __PACKED_UNION @packed union
#endif
#ifndef __UNALIGNED_UINT32 /* deprecated */
@packed struct T_UINT32 { uint32_t v; };
#define __UNALIGNED_UINT32(x) (((struct T_UINT32 *)(x))->v)
#endif
#ifndef __UNALIGNED_UINT16_WRITE
__PACKED_STRUCT T_UINT16_WRITE { uint16_t v; };
#define __UNALIGNED_UINT16_WRITE(addr, val) (void)((((struct T_UINT16_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT16_READ
__PACKED_STRUCT T_UINT16_READ { uint16_t v; };
#define __UNALIGNED_UINT16_READ(addr) (((const struct T_UINT16_READ *)(const void *)(addr))->v)
#endif
#ifndef __UNALIGNED_UINT32_WRITE
__PACKED_STRUCT T_UINT32_WRITE { uint32_t v; };
#define __UNALIGNED_UINT32_WRITE(addr, val) (void)((((struct T_UINT32_WRITE *)(void *)(addr))->v) = (val))
#endif
#ifndef __UNALIGNED_UINT32_READ
__PACKED_STRUCT T_UINT32_READ { uint32_t v; };
#define __UNALIGNED_UINT32_READ(addr) (((const struct T_UINT32_READ *)(const void *)(addr))->v)
#endif
#ifndef __ALIGNED
#warning No compiler specific solution for __ALIGNED. __ALIGNED is ignored.
#define __ALIGNED(x)
#endif
#ifndef __RESTRICT
#warning No compiler specific solution for __RESTRICT. __RESTRICT is ignored.
#define __RESTRICT
#endif
#ifndef __COMPILER_BARRIER
#warning No compiler specific solution for __COMPILER_BARRIER. __COMPILER_BARRIER is ignored.
#define __COMPILER_BARRIER() (void)0
#endif
#else
#error Unknown compiler.
#endif
#endif /* __CMSIS_COMPILER_H */
lib/cmsis-core/cmsis_gcc.h
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lib/cmsis-core/cmsis_version.h
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/**************************************************************************//**
* @file cmsis_version.h
* @brief CMSIS Core(M) Version definitions
* @version V5.0.4
* @date 23. July 2019
******************************************************************************/
/*
* Copyright (c) 2009-2019 ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#ifndef __CMSIS_VERSION_H
#define __CMSIS_VERSION_H
/* CMSIS Version definitions */
#define __CM_CMSIS_VERSION_MAIN ( 5U) /*!< [31:16] CMSIS Core(M) main version */
#define __CM_CMSIS_VERSION_SUB ( 4U) /*!< [15:0] CMSIS Core(M) sub version */
#define __CM_CMSIS_VERSION ((__CM_CMSIS_VERSION_MAIN << 16U) | \
__CM_CMSIS_VERSION_SUB ) /*!< CMSIS Core(M) version number */
#endif
lib/cmsis-core/core_cm0.h
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/**************************************************************************//**
* @file core_cm0.h
* @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
* @version V5.0.8
* @date 21. August 2019
******************************************************************************/
/*
* Copyright (c) 2009-2019 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#ifndef __CORE_CM0_H_GENERIC
#define __CORE_CM0_H_GENERIC
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
\page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
CMSIS violates the following MISRA-C:2004 rules:
\li Required Rule 8.5, object/function definition in header file.<br>
Function definitions in header files are used to allow 'inlining'.
\li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
Unions are used for effective representation of core registers.
\li Advisory Rule 19.7, Function-like macro defined.<br>
Function-like macros are used to allow more efficient code.
*/
/*******************************************************************************
* CMSIS definitions
******************************************************************************/
/**
\ingroup Cortex_M0
@{
*/
#include "cmsis_version.h"
/* CMSIS CM0 definitions */
#define __CM0_CMSIS_VERSION_MAIN (__CM_CMSIS_VERSION_MAIN) /*!< \deprecated [31:16] CMSIS HAL main version */
#define __CM0_CMSIS_VERSION_SUB (__CM_CMSIS_VERSION_SUB) /*!< \deprecated [15:0] CMSIS HAL sub version */
#define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16U) | \
__CM0_CMSIS_VERSION_SUB ) /*!< \deprecated CMSIS HAL version number */
#define __CORTEX_M (0U) /*!< Cortex-M Core */
/** __FPU_USED indicates whether an FPU is used or not.
This core does not support an FPU at all
*/
#define __FPU_USED 0U
#if defined ( __CC_ARM )
#if defined __TARGET_FPU_VFP
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
#if defined __ARM_FP
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined ( __GNUC__ )
#if defined (__VFP_FP__) && !defined(__SOFTFP__)
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined ( __ICCARM__ )
#if defined __ARMVFP__
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined ( __TI_ARM__ )
#if defined __TI_VFP_SUPPORT__
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined ( __TASKING__ )
#if defined __FPU_VFP__
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#elif defined ( __CSMC__ )
#if ( __CSMC__ & 0x400U)
#error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
#endif
#endif
#include "cmsis_compiler.h" /* CMSIS compiler specific defines */
#ifdef __cplusplus
}
#endif
#endif /* __CORE_CM0_H_GENERIC */
#ifndef __CMSIS_GENERIC
#ifndef __CORE_CM0_H_DEPENDANT
#define __CORE_CM0_H_DEPENDANT
#ifdef __cplusplus
extern "C" {
#endif
/* check device defines and use defaults */
#if defined __CHECK_DEVICE_DEFINES
#ifndef __CM0_REV
#define __CM0_REV 0x0000U
#warning "__CM0_REV not defined in device header file; using default!"
#endif
#ifndef __NVIC_PRIO_BITS
#define __NVIC_PRIO_BITS 2U
#warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
#endif
#ifndef __Vendor_SysTickConfig
#define __Vendor_SysTickConfig 0U
#warning "__Vendor_SysTickConfig not defined in device header file; using default!"
#endif
#endif
/* IO definitions (access restrictions to peripheral registers) */
/**
\defgroup CMSIS_glob_defs CMSIS Global Defines
<strong>IO Type Qualifiers</strong> are used
\li to specify the access to peripheral variables.
\li for automatic generation of peripheral register debug information.
*/
#ifdef __cplusplus
#define __I volatile /*!< Defines 'read only' permissions */
#else
#define __I volatile const /*!< Defines 'read only' permissions */
#endif
#define __O volatile /*!< Defines 'write only' permissions */
#define __IO volatile /*!< Defines 'read / write' permissions */
/* following defines should be used for structure members */
#define __IM volatile const /*! Defines 'read only' structure member permissions */
#define __OM volatile /*! Defines 'write only' structure member permissions */
#define __IOM volatile /*! Defines 'read / write' structure member permissions */
/*@} end of group Cortex_M0 */
/*******************************************************************************
* Register Abstraction
Core Register contain:
- Core Register
- Core NVIC Register
- Core SCB Register
- Core SysTick Register
******************************************************************************/
/**
\defgroup CMSIS_core_register Defines and Type Definitions
\brief Type definitions and defines for Cortex-M processor based devices.
*/
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_CORE Status and Control Registers
\brief Core Register type definitions.
@{
*/
/**
\brief Union type to access the Application Program Status Register (APSR).
*/
typedef union
{
struct
{
uint32_t _reserved0:28; /*!< bit: 0..27 Reserved */
uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
uint32_t C:1; /*!< bit: 29 Carry condition code flag */
uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
uint32_t N:1; /*!< bit: 31 Negative condition code flag */
} b; /*!< Structure used for bit access */
uint32_t w; /*!< Type used for word access */
} APSR_Type;
/* APSR Register Definitions */
#define APSR_N_Pos 31U /*!< APSR: N Position */
#define APSR_N_Msk (1UL << APSR_N_Pos) /*!< APSR: N Mask */
#define APSR_Z_Pos 30U /*!< APSR: Z Position */
#define APSR_Z_Msk (1UL << APSR_Z_Pos) /*!< APSR: Z Mask */
#define APSR_C_Pos 29U /*!< APSR: C Position */
#define APSR_C_Msk (1UL << APSR_C_Pos) /*!< APSR: C Mask */
#define APSR_V_Pos 28U /*!< APSR: V Position */
#define APSR_V_Msk (1UL << APSR_V_Pos) /*!< APSR: V Mask */
/**
\brief Union type to access the Interrupt Program Status Register (IPSR).
*/
typedef union
{
struct
{
uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
} b; /*!< Structure used for bit access */
uint32_t w; /*!< Type used for word access */
} IPSR_Type;
/* IPSR Register Definitions */
#define IPSR_ISR_Pos 0U /*!< IPSR: ISR Position */
#define IPSR_ISR_Msk (0x1FFUL /*<< IPSR_ISR_Pos*/) /*!< IPSR: ISR Mask */
/**
\brief Union type to access the Special-Purpose Program Status Registers (xPSR).
*/
typedef union
{
struct
{
uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
uint32_t _reserved1:3; /*!< bit: 25..27 Reserved */
uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
uint32_t C:1; /*!< bit: 29 Carry condition code flag */
uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
uint32_t N:1; /*!< bit: 31 Negative condition code flag */
} b; /*!< Structure used for bit access */
uint32_t w; /*!< Type used for word access */
} xPSR_Type;
/* xPSR Register Definitions */
#define xPSR_N_Pos 31U /*!< xPSR: N Position */
#define xPSR_N_Msk (1UL << xPSR_N_Pos) /*!< xPSR: N Mask */
#define xPSR_Z_Pos 30U /*!< xPSR: Z Position */
#define xPSR_Z_Msk (1UL << xPSR_Z_Pos) /*!< xPSR: Z Mask */
#define xPSR_C_Pos 29U /*!< xPSR: C Position */
#define xPSR_C_Msk (1UL << xPSR_C_Pos) /*!< xPSR: C Mask */
#define xPSR_V_Pos 28U /*!< xPSR: V Position */
#define xPSR_V_Msk (1UL << xPSR_V_Pos) /*!< xPSR: V Mask */
#define xPSR_T_Pos 24U /*!< xPSR: T Position */
#define xPSR_T_Msk (1UL << xPSR_T_Pos) /*!< xPSR: T Mask */
#define xPSR_ISR_Pos 0U /*!< xPSR: ISR Position */
#define xPSR_ISR_Msk (0x1FFUL /*<< xPSR_ISR_Pos*/) /*!< xPSR: ISR Mask */
/**
\brief Union type to access the Control Registers (CONTROL).
*/
typedef union
{
struct
{
uint32_t _reserved0:1; /*!< bit: 0 Reserved */
uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
uint32_t _reserved1:30; /*!< bit: 2..31 Reserved */
} b; /*!< Structure used for bit access */
uint32_t w; /*!< Type used for word access */
} CONTROL_Type;
/* CONTROL Register Definitions */
#define CONTROL_SPSEL_Pos 1U /*!< CONTROL: SPSEL Position */
#define CONTROL_SPSEL_Msk (1UL << CONTROL_SPSEL_Pos) /*!< CONTROL: SPSEL Mask */
/*@} end of group CMSIS_CORE */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
\brief Type definitions for the NVIC Registers
@{
*/
/**
\brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
*/
typedef struct
{
__IOM uint32_t ISER[1U]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
uint32_t RESERVED0[31U];
__IOM uint32_t ICER[1U]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
uint32_t RESERVED1[31U];
__IOM uint32_t ISPR[1U]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
uint32_t RESERVED2[31U];
__IOM uint32_t ICPR[1U]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
uint32_t RESERVED3[31U];
uint32_t RESERVED4[64U];
__IOM uint32_t IP[8U]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
} NVIC_Type;
/*@} end of group CMSIS_NVIC */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_SCB System Control Block (SCB)
\brief Type definitions for the System Control Block Registers
@{
*/
/**
\brief Structure type to access the System Control Block (SCB).
*/
typedef struct
{
__IM uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
__IOM uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
uint32_t RESERVED0;
__IOM uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
__IOM uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
__IOM uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
uint32_t RESERVED1;
__IOM uint32_t SHP[2U]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
__IOM uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
} SCB_Type;
/* SCB CPUID Register Definitions */
#define SCB_CPUID_IMPLEMENTER_Pos 24U /*!< SCB CPUID: IMPLEMENTER Position */
#define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
#define SCB_CPUID_VARIANT_Pos 20U /*!< SCB CPUID: VARIANT Position */
#define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
#define SCB_CPUID_ARCHITECTURE_Pos 16U /*!< SCB CPUID: ARCHITECTURE Position */
#define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
#define SCB_CPUID_PARTNO_Pos 4U /*!< SCB CPUID: PARTNO Position */
#define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
#define SCB_CPUID_REVISION_Pos 0U /*!< SCB CPUID: REVISION Position */
#define SCB_CPUID_REVISION_Msk (0xFUL /*<< SCB_CPUID_REVISION_Pos*/) /*!< SCB CPUID: REVISION Mask */
/* SCB Interrupt Control State Register Definitions */
#define SCB_ICSR_NMIPENDSET_Pos 31U /*!< SCB ICSR: NMIPENDSET Position */
#define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
#define SCB_ICSR_PENDSVSET_Pos 28U /*!< SCB ICSR: PENDSVSET Position */
#define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
#define SCB_ICSR_PENDSVCLR_Pos 27U /*!< SCB ICSR: PENDSVCLR Position */
#define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
#define SCB_ICSR_PENDSTSET_Pos 26U /*!< SCB ICSR: PENDSTSET Position */
#define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
#define SCB_ICSR_PENDSTCLR_Pos 25U /*!< SCB ICSR: PENDSTCLR Position */
#define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
#define SCB_ICSR_ISRPREEMPT_Pos 23U /*!< SCB ICSR: ISRPREEMPT Position */
#define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
#define SCB_ICSR_ISRPENDING_Pos 22U /*!< SCB ICSR: ISRPENDING Position */
#define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
#define SCB_ICSR_VECTPENDING_Pos 12U /*!< SCB ICSR: VECTPENDING Position */
#define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
#define SCB_ICSR_VECTACTIVE_Pos 0U /*!< SCB ICSR: VECTACTIVE Position */
#define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL /*<< SCB_ICSR_VECTACTIVE_Pos*/) /*!< SCB ICSR: VECTACTIVE Mask */
/* SCB Application Interrupt and Reset Control Register Definitions */
#define SCB_AIRCR_VECTKEY_Pos 16U /*!< SCB AIRCR: VECTKEY Position */
#define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
#define SCB_AIRCR_VECTKEYSTAT_Pos 16U /*!< SCB AIRCR: VECTKEYSTAT Position */
#define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
#define SCB_AIRCR_ENDIANESS_Pos 15U /*!< SCB AIRCR: ENDIANESS Position */
#define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
#define SCB_AIRCR_SYSRESETREQ_Pos 2U /*!< SCB AIRCR: SYSRESETREQ Position */
#define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
#define SCB_AIRCR_VECTCLRACTIVE_Pos 1U /*!< SCB AIRCR: VECTCLRACTIVE Position */
#define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
/* SCB System Control Register Definitions */
#define SCB_SCR_SEVONPEND_Pos 4U /*!< SCB SCR: SEVONPEND Position */
#define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
#define SCB_SCR_SLEEPDEEP_Pos 2U /*!< SCB SCR: SLEEPDEEP Position */
#define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
#define SCB_SCR_SLEEPONEXIT_Pos 1U /*!< SCB SCR: SLEEPONEXIT Position */
#define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
/* SCB Configuration Control Register Definitions */
#define SCB_CCR_STKALIGN_Pos 9U /*!< SCB CCR: STKALIGN Position */
#define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
#define SCB_CCR_UNALIGN_TRP_Pos 3U /*!< SCB CCR: UNALIGN_TRP Position */
#define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
/* SCB System Handler Control and State Register Definitions */
#define SCB_SHCSR_SVCALLPENDED_Pos 15U /*!< SCB SHCSR: SVCALLPENDED Position */
#define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
/*@} end of group CMSIS_SCB */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_SysTick System Tick Timer (SysTick)
\brief Type definitions for the System Timer Registers.
@{
*/
/**
\brief Structure type to access the System Timer (SysTick).
*/
typedef struct
{
__IOM uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
__IOM uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
__IOM uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
__IM uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
} SysTick_Type;
/* SysTick Control / Status Register Definitions */
#define SysTick_CTRL_COUNTFLAG_Pos 16U /*!< SysTick CTRL: COUNTFLAG Position */
#define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
#define SysTick_CTRL_CLKSOURCE_Pos 2U /*!< SysTick CTRL: CLKSOURCE Position */
#define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
#define SysTick_CTRL_TICKINT_Pos 1U /*!< SysTick CTRL: TICKINT Position */
#define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
#define SysTick_CTRL_ENABLE_Pos 0U /*!< SysTick CTRL: ENABLE Position */
#define SysTick_CTRL_ENABLE_Msk (1UL /*<< SysTick_CTRL_ENABLE_Pos*/) /*!< SysTick CTRL: ENABLE Mask */
/* SysTick Reload Register Definitions */
#define SysTick_LOAD_RELOAD_Pos 0U /*!< SysTick LOAD: RELOAD Position */
#define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL /*<< SysTick_LOAD_RELOAD_Pos*/) /*!< SysTick LOAD: RELOAD Mask */
/* SysTick Current Register Definitions */
#define SysTick_VAL_CURRENT_Pos 0U /*!< SysTick VAL: CURRENT Position */
#define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL /*<< SysTick_VAL_CURRENT_Pos*/) /*!< SysTick VAL: CURRENT Mask */
/* SysTick Calibration Register Definitions */
#define SysTick_CALIB_NOREF_Pos 31U /*!< SysTick CALIB: NOREF Position */
#define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
#define SysTick_CALIB_SKEW_Pos 30U /*!< SysTick CALIB: SKEW Position */
#define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
#define SysTick_CALIB_TENMS_Pos 0U /*!< SysTick CALIB: TENMS Position */
#define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL /*<< SysTick_CALIB_TENMS_Pos*/) /*!< SysTick CALIB: TENMS Mask */
/*@} end of group CMSIS_SysTick */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
\brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR) are only accessible over DAP and not via processor.
Therefore they are not covered by the Cortex-M0 header file.
@{
*/
/*@} end of group CMSIS_CoreDebug */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_core_bitfield Core register bit field macros
\brief Macros for use with bit field definitions (xxx_Pos, xxx_Msk).
@{
*/
/**
\brief Mask and shift a bit field value for use in a register bit range.
\param[in] field Name of the register bit field.
\param[in] value Value of the bit field. This parameter is interpreted as an uint32_t type.
\return Masked and shifted value.
*/
#define _VAL2FLD(field, value) (((uint32_t)(value) << field ## _Pos) & field ## _Msk)
/**
\brief Mask and shift a register value to extract a bit filed value.
\param[in] field Name of the register bit field.
\param[in] value Value of register. This parameter is interpreted as an uint32_t type.
\return Masked and shifted bit field value.
*/
#define _FLD2VAL(field, value) (((uint32_t)(value) & field ## _Msk) >> field ## _Pos)
/*@} end of group CMSIS_core_bitfield */
/**
\ingroup CMSIS_core_register
\defgroup CMSIS_core_base Core Definitions
\brief Definitions for base addresses, unions, and structures.
@{
*/
/* Memory mapping of Core Hardware */
#define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
#define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
#define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
#define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
#define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
#define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
#define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
/*@} */
/*******************************************************************************
* Hardware Abstraction Layer
Core Function Interface contains:
- Core NVIC Functions
- Core SysTick Functions
- Core Register Access Functions
******************************************************************************/
/**
\defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
*/
/* ########################## NVIC functions #################################### */
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_NVICFunctions NVIC Functions
\brief Functions that manage interrupts and exceptions via the NVIC.
@{
*/
#ifdef CMSIS_NVIC_VIRTUAL
#ifndef CMSIS_NVIC_VIRTUAL_HEADER_FILE
#define CMSIS_NVIC_VIRTUAL_HEADER_FILE "cmsis_nvic_virtual.h"
#endif
#include CMSIS_NVIC_VIRTUAL_HEADER_FILE
#else
#define NVIC_SetPriorityGrouping __NVIC_SetPriorityGrouping
#define NVIC_GetPriorityGrouping __NVIC_GetPriorityGrouping
#define NVIC_EnableIRQ __NVIC_EnableIRQ
#define NVIC_GetEnableIRQ __NVIC_GetEnableIRQ
#define NVIC_DisableIRQ __NVIC_DisableIRQ
#define NVIC_GetPendingIRQ __NVIC_GetPendingIRQ
#define NVIC_SetPendingIRQ __NVIC_SetPendingIRQ
#define NVIC_ClearPendingIRQ __NVIC_ClearPendingIRQ
/*#define NVIC_GetActive __NVIC_GetActive not available for Cortex-M0 */
#define NVIC_SetPriority __NVIC_SetPriority
#define NVIC_GetPriority __NVIC_GetPriority
#define NVIC_SystemReset __NVIC_SystemReset
#endif /* CMSIS_NVIC_VIRTUAL */
#ifdef CMSIS_VECTAB_VIRTUAL
#ifndef CMSIS_VECTAB_VIRTUAL_HEADER_FILE
#define CMSIS_VECTAB_VIRTUAL_HEADER_FILE "cmsis_vectab_virtual.h"
#endif
#include CMSIS_VECTAB_VIRTUAL_HEADER_FILE
#else
#define NVIC_SetVector __NVIC_SetVector
#define NVIC_GetVector __NVIC_GetVector
#endif /* (CMSIS_VECTAB_VIRTUAL) */
#define NVIC_USER_IRQ_OFFSET 16
/* The following EXC_RETURN values are saved the LR on exception entry */
#define EXC_RETURN_HANDLER (0xFFFFFFF1UL) /* return to Handler mode, uses MSP after return */
#define EXC_RETURN_THREAD_MSP (0xFFFFFFF9UL) /* return to Thread mode, uses MSP after return */
#define EXC_RETURN_THREAD_PSP (0xFFFFFFFDUL) /* return to Thread mode, uses PSP after return */
/* Interrupt Priorities are WORD accessible only under Armv6-M */
/* The following MACROS handle generation of the register offset and byte masks */
#define _BIT_SHIFT(IRQn) ( ((((uint32_t)(int32_t)(IRQn)) ) & 0x03UL) * 8UL)
#define _SHP_IDX(IRQn) ( (((((uint32_t)(int32_t)(IRQn)) & 0x0FUL)-8UL) >> 2UL) )
#define _IP_IDX(IRQn) ( (((uint32_t)(int32_t)(IRQn)) >> 2UL) )
#define __NVIC_SetPriorityGrouping(X) (void)(X)
#define __NVIC_GetPriorityGrouping() (0U)
/**
\brief Enable Interrupt
\details Enables a device specific interrupt in the NVIC interrupt controller.
\param [in] IRQn Device specific interrupt number.
\note IRQn must not be negative.
*/
__STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
__COMPILER_BARRIER();
NVIC->ISER[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
__COMPILER_BARRIER();
}
}
/**
\brief Get Interrupt Enable status
\details Returns a device specific interrupt enable status from the NVIC interrupt controller.
\param [in] IRQn Device specific interrupt number.
\return 0 Interrupt is not enabled.
\return 1 Interrupt is enabled.
\note IRQn must not be negative.
*/
__STATIC_INLINE uint32_t __NVIC_GetEnableIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
return((uint32_t)(((NVIC->ISER[0U] & (1UL << (((uint32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
}
else
{
return(0U);
}
}
/**
\brief Disable Interrupt
\details Disables a device specific interrupt in the NVIC interrupt controller.
\param [in] IRQn Device specific interrupt number.
\note IRQn must not be negative.
*/
__STATIC_INLINE void __NVIC_DisableIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
NVIC->ICER[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
__DSB();
__ISB();
}
}
/**
\brief Get Pending Interrupt
\details Reads the NVIC pending register and returns the pending bit for the specified device specific interrupt.
\param [in] IRQn Device specific interrupt number.
\return 0 Interrupt status is not pending.
\return 1 Interrupt status is pending.
\note IRQn must not be negative.
*/
__STATIC_INLINE uint32_t __NVIC_GetPendingIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
return((uint32_t)(((NVIC->ISPR[0U] & (1UL << (((uint32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
}
else
{
return(0U);
}
}
/**
\brief Set Pending Interrupt
\details Sets the pending bit of a device specific interrupt in the NVIC pending register.
\param [in] IRQn Device specific interrupt number.
\note IRQn must not be negative.
*/
__STATIC_INLINE void __NVIC_SetPendingIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
NVIC->ISPR[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
}
}
/**
\brief Clear Pending Interrupt
\details Clears the pending bit of a device specific interrupt in the NVIC pending register.
\param [in] IRQn Device specific interrupt number.
\note IRQn must not be negative.
*/
__STATIC_INLINE void __NVIC_ClearPendingIRQ(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
NVIC->ICPR[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
}
}
/**
\brief Set Interrupt Priority
\details Sets the priority of a device specific interrupt or a processor exception.
The interrupt number can be positive to specify a device specific interrupt,
or negative to specify a processor exception.
\param [in] IRQn Interrupt number.
\param [in] priority Priority to set.
\note The priority cannot be set for every processor exception.
*/
__STATIC_INLINE void __NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
{
if ((int32_t)(IRQn) >= 0)
{
NVIC->IP[_IP_IDX(IRQn)] = ((uint32_t)(NVIC->IP[_IP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
(((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
}
else
{
SCB->SHP[_SHP_IDX(IRQn)] = ((uint32_t)(SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
(((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
}
}
/**
\brief Get Interrupt Priority
\details Reads the priority of a device specific interrupt or a processor exception.
The interrupt number can be positive to specify a device specific interrupt,
or negative to specify a processor exception.
\param [in] IRQn Interrupt number.
\return Interrupt Priority.
Value is aligned automatically to the implemented priority bits of the microcontroller.
*/
__STATIC_INLINE uint32_t __NVIC_GetPriority(IRQn_Type IRQn)
{
if ((int32_t)(IRQn) >= 0)
{
return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
}
else
{
return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
}
}
/**
\brief Encode Priority
\details Encodes the priority for an interrupt with the given priority group,
preemptive priority value, and subpriority value.
In case of a conflict between priority grouping and available
priority bits (__NVIC_PRIO_BITS), the smallest possible priority group is set.
\param [in] PriorityGroup Used priority group.
\param [in] PreemptPriority Preemptive priority value (starting from 0).
\param [in] SubPriority Subpriority value (starting from 0).
\return Encoded priority. Value can be used in the function \ref NVIC_SetPriority().
*/
__STATIC_INLINE uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority)
{
uint32_t PriorityGroupTmp = (PriorityGroup & (uint32_t)0x07UL); /* only values 0..7 are used */
uint32_t PreemptPriorityBits;
uint32_t SubPriorityBits;
PreemptPriorityBits = ((7UL - PriorityGroupTmp) > (uint32_t)(__NVIC_PRIO_BITS)) ? (uint32_t)(__NVIC_PRIO_BITS) : (uint32_t)(7UL - PriorityGroupTmp);
SubPriorityBits = ((PriorityGroupTmp + (uint32_t)(__NVIC_PRIO_BITS)) < (uint32_t)7UL) ? (uint32_t)0UL : (uint32_t)((PriorityGroupTmp - 7UL) + (uint32_t)(__NVIC_PRIO_BITS));
return (
((PreemptPriority & (uint32_t)((1UL << (PreemptPriorityBits)) - 1UL)) << SubPriorityBits) |
((SubPriority & (uint32_t)((1UL << (SubPriorityBits )) - 1UL)))
);
}
/**
\brief Decode Priority
\details Decodes an interrupt priority value with a given priority group to
preemptive priority value and subpriority value.
In case of a conflict between priority grouping and available
priority bits (__NVIC_PRIO_BITS) the smallest possible priority group is set.
\param [in] Priority Priority value, which can be retrieved with the function \ref NVIC_GetPriority().
\param [in] PriorityGroup Used priority group.
\param [out] pPreemptPriority Preemptive priority value (starting from 0).
\param [out] pSubPriority Subpriority value (starting from 0).
*/
__STATIC_INLINE void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* const pPreemptPriority, uint32_t* const pSubPriority)
{
uint32_t PriorityGroupTmp = (PriorityGroup & (uint32_t)0x07UL); /* only values 0..7 are used */
uint32_t PreemptPriorityBits;
uint32_t SubPriorityBits;
PreemptPriorityBits = ((7UL - PriorityGroupTmp) > (uint32_t)(__NVIC_PRIO_BITS)) ? (uint32_t)(__NVIC_PRIO_BITS) : (uint32_t)(7UL - PriorityGroupTmp);
SubPriorityBits = ((PriorityGroupTmp + (uint32_t)(__NVIC_PRIO_BITS)) < (uint32_t)7UL) ? (uint32_t)0UL : (uint32_t)((PriorityGroupTmp - 7UL) + (uint32_t)(__NVIC_PRIO_BITS));
*pPreemptPriority = (Priority >> SubPriorityBits) & (uint32_t)((1UL << (PreemptPriorityBits)) - 1UL);
*pSubPriority = (Priority ) & (uint32_t)((1UL << (SubPriorityBits )) - 1UL);
}
/**
\brief Set Interrupt Vector
\details Sets an interrupt vector in SRAM based interrupt vector table.
The interrupt number can be positive to specify a device specific interrupt,
or negative to specify a processor exception.
Address 0 must be mapped to SRAM.
\param [in] IRQn Interrupt number
\param [in] vector Address of interrupt handler function
*/
__STATIC_INLINE void __NVIC_SetVector(IRQn_Type IRQn, uint32_t vector)
{
uint32_t *vectors = (uint32_t *)(NVIC_USER_IRQ_OFFSET << 2); /* point to 1st user interrupt */
*(vectors + (int32_t)IRQn) = vector; /* use pointer arithmetic to access vector */
/* ARM Application Note 321 states that the M0 does not require the architectural barrier */
}
/**
\brief Get Interrupt Vector
\details Reads an interrupt vector from interrupt vector table.
The interrupt number can be positive to specify a device specific interrupt,
or negative to specify a processor exception.
\param [in] IRQn Interrupt number.
\return Address of interrupt handler function
*/
__STATIC_INLINE uint32_t __NVIC_GetVector(IRQn_Type IRQn)
{
uint32_t *vectors = (uint32_t *)(NVIC_USER_IRQ_OFFSET << 2); /* point to 1st user interrupt */
return *(vectors + (int32_t)IRQn); /* use pointer arithmetic to access vector */
}
/**
\brief System Reset
\details Initiates a system reset request to reset the MCU.
*/
__NO_RETURN __STATIC_INLINE void __NVIC_SystemReset(void)
{
__DSB(); /* Ensure all outstanding memory accesses included
buffered write are completed before reset */
SCB->AIRCR = ((0x5FAUL << SCB_AIRCR_VECTKEY_Pos) |
SCB_AIRCR_SYSRESETREQ_Msk);
__DSB(); /* Ensure completion of memory access */
for(;;) /* wait until reset */
{
__NOP();
}
}
/*@} end of CMSIS_Core_NVICFunctions */
/* ########################## FPU functions #################################### */
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_FpuFunctions FPU Functions
\brief Function that provides FPU type.
@{
*/
/**
\brief get FPU type
\details returns the FPU type
\returns
- \b 0: No FPU
- \b 1: Single precision FPU
- \b 2: Double + Single precision FPU
*/
__STATIC_INLINE uint32_t SCB_GetFPUType(void)
{
return 0U; /* No FPU */
}
/*@} end of CMSIS_Core_FpuFunctions */
/* ################################## SysTick function ############################################ */
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_SysTickFunctions SysTick Functions
\brief Functions that configure the System.
@{
*/
#if defined (__Vendor_SysTickConfig) && (__Vendor_SysTickConfig == 0U)
/**
\brief System Tick Configuration
\details Initializes the System Timer and its interrupt, and starts the System Tick Timer.
Counter is in free running mode to generate periodic interrupts.
\param [in] ticks Number of ticks between two interrupts.
\return 0 Function succeeded.
\return 1 Function failed.
\note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
must contain a vendor-specific implementation of this function.
*/
__STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
{
if ((ticks - 1UL) > SysTick_LOAD_RELOAD_Msk)
{
return (1UL); /* Reload value impossible */
}
SysTick->LOAD = (uint32_t)(ticks - 1UL); /* set reload register */
NVIC_SetPriority (SysTick_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL); /* set Priority for Systick Interrupt */
SysTick->VAL = 0UL; /* Load the SysTick Counter Value */
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
SysTick_CTRL_TICKINT_Msk |
SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
return (0UL); /* Function successful */
}
#endif
/*@} end of CMSIS_Core_SysTickFunctions */
#ifdef __cplusplus
}
#endif
#endif /* __CORE_CM0_H_DEPENDANT */
#endif /* __CMSIS_GENERIC */
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/******************************************************************************
* @file mpu_armv7.h
* @brief CMSIS MPU API for Armv7-M MPU
* @version V5.1.1
* @date 10. February 2020
******************************************************************************/
/*
* Copyright (c) 2017-2020 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined ( __ICCARM__ )
#pragma system_include /* treat file as system include file for MISRA check */
#elif defined (__clang__)
#pragma clang system_header /* treat file as system include file */
#endif
#ifndef ARM_MPU_ARMV7_H
#define ARM_MPU_ARMV7_H
#define ARM_MPU_REGION_SIZE_32B ((uint8_t)0x04U) ///!< MPU Region Size 32 Bytes
#define ARM_MPU_REGION_SIZE_64B ((uint8_t)0x05U) ///!< MPU Region Size 64 Bytes
#define ARM_MPU_REGION_SIZE_128B ((uint8_t)0x06U) ///!< MPU Region Size 128 Bytes
#define ARM_MPU_REGION_SIZE_256B ((uint8_t)0x07U) ///!< MPU Region Size 256 Bytes
#define ARM_MPU_REGION_SIZE_512B ((uint8_t)0x08U) ///!< MPU Region Size 512 Bytes
#define ARM_MPU_REGION_SIZE_1KB ((uint8_t)0x09U) ///!< MPU Region Size 1 KByte
#define ARM_MPU_REGION_SIZE_2KB ((uint8_t)0x0AU) ///!< MPU Region Size 2 KBytes
#define ARM_MPU_REGION_SIZE_4KB ((uint8_t)0x0BU) ///!< MPU Region Size 4 KBytes
#define ARM_MPU_REGION_SIZE_8KB ((uint8_t)0x0CU) ///!< MPU Region Size 8 KBytes
#define ARM_MPU_REGION_SIZE_16KB ((uint8_t)0x0DU) ///!< MPU Region Size 16 KBytes
#define ARM_MPU_REGION_SIZE_32KB ((uint8_t)0x0EU) ///!< MPU Region Size 32 KBytes
#define ARM_MPU_REGION_SIZE_64KB ((uint8_t)0x0FU) ///!< MPU Region Size 64 KBytes
#define ARM_MPU_REGION_SIZE_128KB ((uint8_t)0x10U) ///!< MPU Region Size 128 KBytes
#define ARM_MPU_REGION_SIZE_256KB ((uint8_t)0x11U) ///!< MPU Region Size 256 KBytes
#define ARM_MPU_REGION_SIZE_512KB ((uint8_t)0x12U) ///!< MPU Region Size 512 KBytes
#define ARM_MPU_REGION_SIZE_1MB ((uint8_t)0x13U) ///!< MPU Region Size 1 MByte
#define ARM_MPU_REGION_SIZE_2MB ((uint8_t)0x14U) ///!< MPU Region Size 2 MBytes
#define ARM_MPU_REGION_SIZE_4MB ((uint8_t)0x15U) ///!< MPU Region Size 4 MBytes
#define ARM_MPU_REGION_SIZE_8MB ((uint8_t)0x16U) ///!< MPU Region Size 8 MBytes
#define ARM_MPU_REGION_SIZE_16MB ((uint8_t)0x17U) ///!< MPU Region Size 16 MBytes
#define ARM_MPU_REGION_SIZE_32MB ((uint8_t)0x18U) ///!< MPU Region Size 32 MBytes
#define ARM_MPU_REGION_SIZE_64MB ((uint8_t)0x19U) ///!< MPU Region Size 64 MBytes
#define ARM_MPU_REGION_SIZE_128MB ((uint8_t)0x1AU) ///!< MPU Region Size 128 MBytes
#define ARM_MPU_REGION_SIZE_256MB ((uint8_t)0x1BU) ///!< MPU Region Size 256 MBytes
#define ARM_MPU_REGION_SIZE_512MB ((uint8_t)0x1CU) ///!< MPU Region Size 512 MBytes
#define ARM_MPU_REGION_SIZE_1GB ((uint8_t)0x1DU) ///!< MPU Region Size 1 GByte
#define ARM_MPU_REGION_SIZE_2GB ((uint8_t)0x1EU) ///!< MPU Region Size 2 GBytes
#define ARM_MPU_REGION_SIZE_4GB ((uint8_t)0x1FU) ///!< MPU Region Size 4 GBytes
#define ARM_MPU_AP_NONE 0U ///!< MPU Access Permission no access
#define ARM_MPU_AP_PRIV 1U ///!< MPU Access Permission privileged access only
#define ARM_MPU_AP_URO 2U ///!< MPU Access Permission unprivileged access read-only
#define ARM_MPU_AP_FULL 3U ///!< MPU Access Permission full access
#define ARM_MPU_AP_PRO 5U ///!< MPU Access Permission privileged access read-only
#define ARM_MPU_AP_RO 6U ///!< MPU Access Permission read-only access
/** MPU Region Base Address Register Value
*
* \param Region The region to be configured, number 0 to 15.
* \param BaseAddress The base address for the region.
*/
#define ARM_MPU_RBAR(Region, BaseAddress) \
(((BaseAddress) & MPU_RBAR_ADDR_Msk) | \
((Region) & MPU_RBAR_REGION_Msk) | \
(MPU_RBAR_VALID_Msk))
/**
* MPU Memory Access Attributes
*
* \param TypeExtField Type extension field, allows you to configure memory access type, for example strongly ordered, peripheral.
* \param IsShareable Region is shareable between multiple bus masters.
* \param IsCacheable Region is cacheable, i.e. its value may be kept in cache.
* \param IsBufferable Region is bufferable, i.e. using write-back caching. Cacheable but non-bufferable regions use write-through policy.
*/
#define ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable) \
((((TypeExtField) << MPU_RASR_TEX_Pos) & MPU_RASR_TEX_Msk) | \
(((IsShareable) << MPU_RASR_S_Pos) & MPU_RASR_S_Msk) | \
(((IsCacheable) << MPU_RASR_C_Pos) & MPU_RASR_C_Msk) | \
(((IsBufferable) << MPU_RASR_B_Pos) & MPU_RASR_B_Msk))
/**
* MPU Region Attribute and Size Register Value
*
* \param DisableExec Instruction access disable bit, 1= disable instruction fetches.
* \param AccessPermission Data access permissions, allows you to configure read/write access for User and Privileged mode.
* \param AccessAttributes Memory access attribution, see \ref ARM_MPU_ACCESS_.
* \param SubRegionDisable Sub-region disable field.
* \param Size Region size of the region to be configured, for example 4K, 8K.
*/
#define ARM_MPU_RASR_EX(DisableExec, AccessPermission, AccessAttributes, SubRegionDisable, Size) \
((((DisableExec) << MPU_RASR_XN_Pos) & MPU_RASR_XN_Msk) | \
(((AccessPermission) << MPU_RASR_AP_Pos) & MPU_RASR_AP_Msk) | \
(((AccessAttributes) & (MPU_RASR_TEX_Msk | MPU_RASR_S_Msk | MPU_RASR_C_Msk | MPU_RASR_B_Msk))) | \
(((SubRegionDisable) << MPU_RASR_SRD_Pos) & MPU_RASR_SRD_Msk) | \
(((Size) << MPU_RASR_SIZE_Pos) & MPU_RASR_SIZE_Msk) | \
(((MPU_RASR_ENABLE_Msk))))
/**
* MPU Region Attribute and Size Register Value
*
* \param DisableExec Instruction access disable bit, 1= disable instruction fetches.
* \param AccessPermission Data access permissions, allows you to configure read/write access for User and Privileged mode.
* \param TypeExtField Type extension field, allows you to configure memory access type, for example strongly ordered, peripheral.
* \param IsShareable Region is shareable between multiple bus masters.
* \param IsCacheable Region is cacheable, i.e. its value may be kept in cache.
* \param IsBufferable Region is bufferable, i.e. using write-back caching. Cacheable but non-bufferable regions use write-through policy.
* \param SubRegionDisable Sub-region disable field.
* \param Size Region size of the region to be configured, for example 4K, 8K.
*/
#define ARM_MPU_RASR(DisableExec, AccessPermission, TypeExtField, IsShareable, IsCacheable, IsBufferable, SubRegionDisable, Size) \
ARM_MPU_RASR_EX(DisableExec, AccessPermission, ARM_MPU_ACCESS_(TypeExtField, IsShareable, IsCacheable, IsBufferable), SubRegionDisable, Size)
/**
* MPU Memory Access Attribute for strongly ordered memory.
* - TEX: 000b
* - Shareable
* - Non-cacheable
* - Non-bufferable
*/
#define ARM_MPU_ACCESS_ORDERED ARM_MPU_ACCESS_(0U, 1U, 0U, 0U)
/**
* MPU Memory Access Attribute for device memory.
* - TEX: 000b (if shareable) or 010b (if non-shareable)
* - Shareable or non-shareable
* - Non-cacheable
* - Bufferable (if shareable) or non-bufferable (if non-shareable)
*
* \param IsShareable Configures the device memory as shareable or non-shareable.
*/
#define ARM_MPU_ACCESS_DEVICE(IsShareable) ((IsShareable) ? ARM_MPU_ACCESS_(0U, 1U, 0U, 1U) : ARM_MPU_ACCESS_(2U, 0U, 0U, 0U))
/**
* MPU Memory Access Attribute for normal memory.
* - TEX: 1BBb (reflecting outer cacheability rules)
* - Shareable or non-shareable
* - Cacheable or non-cacheable (reflecting inner cacheability rules)
* - Bufferable or non-bufferable (reflecting inner cacheability rules)
*
* \param OuterCp Configures the outer cache policy.
* \param InnerCp Configures the inner cache policy.
* \param IsShareable Configures the memory as shareable or non-shareable.
*/
#define ARM_MPU_ACCESS_NORMAL(OuterCp, InnerCp, IsShareable) ARM_MPU_ACCESS_((4U | (OuterCp)), IsShareable, ((InnerCp) >> 1U), ((InnerCp) & 1U))
/**
* MPU Memory Access Attribute non-cacheable policy.
*/
#define ARM_MPU_CACHEP_NOCACHE 0U
/**
* MPU Memory Access Attribute write-back, write and read allocate policy.
*/
#define ARM_MPU_CACHEP_WB_WRA 1U
/**
* MPU Memory Access Attribute write-through, no write allocate policy.
*/
#define ARM_MPU_CACHEP_WT_NWA 2U
/**
* MPU Memory Access Attribute write-back, no write allocate policy.
*/
#define ARM_MPU_CACHEP_WB_NWA 3U
/**
* Struct for a single MPU Region
*/
typedef struct {
uint32_t RBAR; //!< The region base address register value (RBAR)
uint32_t RASR; //!< The region attribute and size register value (RASR) \ref MPU_RASR
} ARM_MPU_Region_t;
/** Enable the MPU.
* \param MPU_Control Default access permissions for unconfigured regions.
*/
__STATIC_INLINE void ARM_MPU_Enable(uint32_t MPU_Control)
{
__DMB();
MPU->CTRL = MPU_Control | MPU_CTRL_ENABLE_Msk;
#ifdef SCB_SHCSR_MEMFAULTENA_Msk
SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
#endif
__DSB();
__ISB();
}
/** Disable the MPU.
*/
__STATIC_INLINE void ARM_MPU_Disable(void)
{
__DMB();
#ifdef SCB_SHCSR_MEMFAULTENA_Msk
SCB->SHCSR &= ~SCB_SHCSR_MEMFAULTENA_Msk;
#endif
MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk;
__DSB();
__ISB();
}
/** Clear and disable the given MPU region.
* \param rnr Region number to be cleared.
*/
__STATIC_INLINE void ARM_MPU_ClrRegion(uint32_t rnr)
{
MPU->RNR = rnr;
MPU->RASR = 0U;
}
/** Configure an MPU region.
* \param rbar Value for RBAR register.
* \param rsar Value for RSAR register.
*/
__STATIC_INLINE void ARM_MPU_SetRegion(uint32_t rbar, uint32_t rasr)
{
MPU->RBAR = rbar;
MPU->RASR = rasr;
}
/** Configure the given MPU region.
* \param rnr Region number to be configured.
* \param rbar Value for RBAR register.
* \param rsar Value for RSAR register.
*/
__STATIC_INLINE void ARM_MPU_SetRegionEx(uint32_t rnr, uint32_t rbar, uint32_t rasr)
{
MPU->RNR = rnr;
MPU->RBAR = rbar;
MPU->RASR = rasr;
}
/** Memcopy with strictly ordered memory access, e.g. for register targets.
* \param dst Destination data is copied to.
* \param src Source data is copied from.
* \param len Amount of data words to be copied.
*/
__STATIC_INLINE void ARM_MPU_OrderedMemcpy(volatile uint32_t* dst, const uint32_t* __RESTRICT src, uint32_t len)
{
uint32_t i;
for (i = 0U; i < len; ++i)
{
dst[i] = src[i];
}
}
/** Load the given number of MPU regions from a table.
* \param table Pointer to the MPU configuration table.
* \param cnt Amount of regions to be configured.
*/
__STATIC_INLINE void ARM_MPU_Load(ARM_MPU_Region_t const* table, uint32_t cnt)
{
const uint32_t rowWordSize = sizeof(ARM_MPU_Region_t)/4U;
while (cnt > MPU_TYPE_RALIASES) {
ARM_MPU_OrderedMemcpy(&(MPU->RBAR), &(table->RBAR), MPU_TYPE_RALIASES*rowWordSize);
table += MPU_TYPE_RALIASES;
cnt -= MPU_TYPE_RALIASES;
}
ARM_MPU_OrderedMemcpy(&(MPU->RBAR), &(table->RBAR), cnt*rowWordSize);
}
#endif