Gan likun / The prosthetic control

The prosthetic control（MIT）

cmsis/core_cm0.h@0:20e0c61e0684, 2022-06-23 (annotated)

Committer:
ganlikun
Date:
Thu Jun 23 05:23:34 2022 +0000
Revision:
0:20e0c61e0684
01

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ganlikun 0:20e0c61e0684 1 /**************************************************************************//**
ganlikun 0:20e0c61e0684 2 * @file core_cm0.h
ganlikun 0:20e0c61e0684 3 * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
ganlikun 0:20e0c61e0684 4 * @version V5.0.2
ganlikun 0:20e0c61e0684 5 * @date 13. February 2017
ganlikun 0:20e0c61e0684 6 ******************************************************************************/
ganlikun 0:20e0c61e0684 7 /*
ganlikun 0:20e0c61e0684 8 * Copyright (c) 2009-2017 ARM Limited. All rights reserved.
ganlikun 0:20e0c61e0684 9 *
ganlikun 0:20e0c61e0684 10 * SPDX-License-Identifier: Apache-2.0
ganlikun 0:20e0c61e0684 11 *
ganlikun 0:20e0c61e0684 12 * Licensed under the Apache License, Version 2.0 (the License); you may
ganlikun 0:20e0c61e0684 13 * not use this file except in compliance with the License.
ganlikun 0:20e0c61e0684 14 * You may obtain a copy of the License at
ganlikun 0:20e0c61e0684 15 *
ganlikun 0:20e0c61e0684 16 * www.apache.org/licenses/LICENSE-2.0
ganlikun 0:20e0c61e0684 17 *
ganlikun 0:20e0c61e0684 18 * Unless required by applicable law or agreed to in writing, software
ganlikun 0:20e0c61e0684 19 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
ganlikun 0:20e0c61e0684 20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ganlikun 0:20e0c61e0684 21 * See the License for the specific language governing permissions and
ganlikun 0:20e0c61e0684 22 * limitations under the License.
ganlikun 0:20e0c61e0684 23 */
ganlikun 0:20e0c61e0684 24
ganlikun 0:20e0c61e0684 25 #if defined ( __ICCARM__ )
ganlikun 0:20e0c61e0684 26 #pragma system_include /* treat file as system include file for MISRA check */
ganlikun 0:20e0c61e0684 27 #elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
ganlikun 0:20e0c61e0684 28 #pragma clang system_header /* treat file as system include file */
ganlikun 0:20e0c61e0684 29 #endif
ganlikun 0:20e0c61e0684 30
ganlikun 0:20e0c61e0684 31 #ifndef __CORE_CM0_H_GENERIC
ganlikun 0:20e0c61e0684 32 #define __CORE_CM0_H_GENERIC
ganlikun 0:20e0c61e0684 33
ganlikun 0:20e0c61e0684 34 #include <stdint.h>
ganlikun 0:20e0c61e0684 35
ganlikun 0:20e0c61e0684 36 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 37 extern "C" {
ganlikun 0:20e0c61e0684 38 #endif
ganlikun 0:20e0c61e0684 39
ganlikun 0:20e0c61e0684 40 /**
ganlikun 0:20e0c61e0684 41 \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
ganlikun 0:20e0c61e0684 42 CMSIS violates the following MISRA-C:2004 rules:
ganlikun 0:20e0c61e0684 43
ganlikun 0:20e0c61e0684 44 \li Required Rule 8.5, object/function definition in header file.<br>
ganlikun 0:20e0c61e0684 45 Function definitions in header files are used to allow 'inlining'.
ganlikun 0:20e0c61e0684 46
ganlikun 0:20e0c61e0684 47 \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
ganlikun 0:20e0c61e0684 48 Unions are used for effective representation of core registers.
ganlikun 0:20e0c61e0684 49
ganlikun 0:20e0c61e0684 50 \li Advisory Rule 19.7, Function-like macro defined.<br>
ganlikun 0:20e0c61e0684 51 Function-like macros are used to allow more efficient code.
ganlikun 0:20e0c61e0684 52 */
ganlikun 0:20e0c61e0684 53
ganlikun 0:20e0c61e0684 54
ganlikun 0:20e0c61e0684 55 /*******************************************************************************
ganlikun 0:20e0c61e0684 56 * CMSIS definitions
ganlikun 0:20e0c61e0684 57 ******************************************************************************/
ganlikun 0:20e0c61e0684 58 /**
ganlikun 0:20e0c61e0684 59 \ingroup Cortex_M0
ganlikun 0:20e0c61e0684 60 @{
ganlikun 0:20e0c61e0684 61 */
ganlikun 0:20e0c61e0684 62
ganlikun 0:20e0c61e0684 63 /* CMSIS CM0 definitions */
ganlikun 0:20e0c61e0684 64 #define __CM0_CMSIS_VERSION_MAIN ( 5U) /*!< [31:16] CMSIS HAL main version */
ganlikun 0:20e0c61e0684 65 #define __CM0_CMSIS_VERSION_SUB ( 0U) /*!< [15:0] CMSIS HAL sub version */
ganlikun 0:20e0c61e0684 66 #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16U) | \
ganlikun 0:20e0c61e0684 67 __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */
ganlikun 0:20e0c61e0684 68
ganlikun 0:20e0c61e0684 69 #define __CORTEX_M (0U) /*!< Cortex-M Core */
ganlikun 0:20e0c61e0684 70
ganlikun 0:20e0c61e0684 71 /** __FPU_USED indicates whether an FPU is used or not.
ganlikun 0:20e0c61e0684 72 This core does not support an FPU at all
ganlikun 0:20e0c61e0684 73 */
ganlikun 0:20e0c61e0684 74 #define __FPU_USED 0U
ganlikun 0:20e0c61e0684 75
ganlikun 0:20e0c61e0684 76 #if defined ( __CC_ARM )
ganlikun 0:20e0c61e0684 77 #if defined __TARGET_FPU_VFP
ganlikun 0:20e0c61e0684 78 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 79 #endif
ganlikun 0:20e0c61e0684 80
ganlikun 0:20e0c61e0684 81 #elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
ganlikun 0:20e0c61e0684 82 #if defined __ARM_PCS_VFP
ganlikun 0:20e0c61e0684 83 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 84 #endif
ganlikun 0:20e0c61e0684 85
ganlikun 0:20e0c61e0684 86 #elif defined ( __GNUC__ )
ganlikun 0:20e0c61e0684 87 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
ganlikun 0:20e0c61e0684 88 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 89 #endif
ganlikun 0:20e0c61e0684 90
ganlikun 0:20e0c61e0684 91 #elif defined ( __ICCARM__ )
ganlikun 0:20e0c61e0684 92 #if defined __ARMVFP__
ganlikun 0:20e0c61e0684 93 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 94 #endif
ganlikun 0:20e0c61e0684 95
ganlikun 0:20e0c61e0684 96 #elif defined ( __TI_ARM__ )
ganlikun 0:20e0c61e0684 97 #if defined __TI_VFP_SUPPORT__
ganlikun 0:20e0c61e0684 98 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 99 #endif
ganlikun 0:20e0c61e0684 100
ganlikun 0:20e0c61e0684 101 #elif defined ( __TASKING__ )
ganlikun 0:20e0c61e0684 102 #if defined __FPU_VFP__
ganlikun 0:20e0c61e0684 103 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 104 #endif
ganlikun 0:20e0c61e0684 105
ganlikun 0:20e0c61e0684 106 #elif defined ( __CSMC__ )
ganlikun 0:20e0c61e0684 107 #if ( __CSMC__ & 0x400U)
ganlikun 0:20e0c61e0684 108 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
ganlikun 0:20e0c61e0684 109 #endif
ganlikun 0:20e0c61e0684 110
ganlikun 0:20e0c61e0684 111 #endif
ganlikun 0:20e0c61e0684 112
ganlikun 0:20e0c61e0684 113 #include "cmsis_compiler.h" /* CMSIS compiler specific defines */
ganlikun 0:20e0c61e0684 114
ganlikun 0:20e0c61e0684 115
ganlikun 0:20e0c61e0684 116 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 117 }
ganlikun 0:20e0c61e0684 118 #endif
ganlikun 0:20e0c61e0684 119
ganlikun 0:20e0c61e0684 120 #endif /* __CORE_CM0_H_GENERIC */
ganlikun 0:20e0c61e0684 121
ganlikun 0:20e0c61e0684 122 #ifndef __CMSIS_GENERIC
ganlikun 0:20e0c61e0684 123
ganlikun 0:20e0c61e0684 124 #ifndef __CORE_CM0_H_DEPENDANT
ganlikun 0:20e0c61e0684 125 #define __CORE_CM0_H_DEPENDANT
ganlikun 0:20e0c61e0684 126
ganlikun 0:20e0c61e0684 127 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 128 extern "C" {
ganlikun 0:20e0c61e0684 129 #endif
ganlikun 0:20e0c61e0684 130
ganlikun 0:20e0c61e0684 131 /* check device defines and use defaults */
ganlikun 0:20e0c61e0684 132 #if defined __CHECK_DEVICE_DEFINES
ganlikun 0:20e0c61e0684 133 #ifndef __CM0_REV
ganlikun 0:20e0c61e0684 134 #define __CM0_REV 0x0000U
ganlikun 0:20e0c61e0684 135 #warning "__CM0_REV not defined in device header file; using default!"
ganlikun 0:20e0c61e0684 136 #endif
ganlikun 0:20e0c61e0684 137
ganlikun 0:20e0c61e0684 138 #ifndef __NVIC_PRIO_BITS
ganlikun 0:20e0c61e0684 139 #define __NVIC_PRIO_BITS 2U
ganlikun 0:20e0c61e0684 140 #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
ganlikun 0:20e0c61e0684 141 #endif
ganlikun 0:20e0c61e0684 142
ganlikun 0:20e0c61e0684 143 #ifndef __Vendor_SysTickConfig
ganlikun 0:20e0c61e0684 144 #define __Vendor_SysTickConfig 0U
ganlikun 0:20e0c61e0684 145 #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
ganlikun 0:20e0c61e0684 146 #endif
ganlikun 0:20e0c61e0684 147 #endif
ganlikun 0:20e0c61e0684 148
ganlikun 0:20e0c61e0684 149 /* IO definitions (access restrictions to peripheral registers) */
ganlikun 0:20e0c61e0684 150 /**
ganlikun 0:20e0c61e0684 151 \defgroup CMSIS_glob_defs CMSIS Global Defines
ganlikun 0:20e0c61e0684 152
ganlikun 0:20e0c61e0684 153 <strong>IO Type Qualifiers</strong> are used
ganlikun 0:20e0c61e0684 154 \li to specify the access to peripheral variables.
ganlikun 0:20e0c61e0684 155 \li for automatic generation of peripheral register debug information.
ganlikun 0:20e0c61e0684 156 */
ganlikun 0:20e0c61e0684 157 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 158 #define __I volatile /*!< Defines 'read only' permissions */
ganlikun 0:20e0c61e0684 159 #else
ganlikun 0:20e0c61e0684 160 #define __I volatile const /*!< Defines 'read only' permissions */
ganlikun 0:20e0c61e0684 161 #endif
ganlikun 0:20e0c61e0684 162 #define __O volatile /*!< Defines 'write only' permissions */
ganlikun 0:20e0c61e0684 163 #define __IO volatile /*!< Defines 'read / write' permissions */
ganlikun 0:20e0c61e0684 164
ganlikun 0:20e0c61e0684 165 /* following defines should be used for structure members */
ganlikun 0:20e0c61e0684 166 #define __IM volatile const /*! Defines 'read only' structure member permissions */
ganlikun 0:20e0c61e0684 167 #define __OM volatile /*! Defines 'write only' structure member permissions */
ganlikun 0:20e0c61e0684 168 #define __IOM volatile /*! Defines 'read / write' structure member permissions */
ganlikun 0:20e0c61e0684 169
ganlikun 0:20e0c61e0684 170 /*@} end of group Cortex_M0 */
ganlikun 0:20e0c61e0684 171
ganlikun 0:20e0c61e0684 172
ganlikun 0:20e0c61e0684 173
ganlikun 0:20e0c61e0684 174 /*******************************************************************************
ganlikun 0:20e0c61e0684 175 * Register Abstraction
ganlikun 0:20e0c61e0684 176 Core Register contain:
ganlikun 0:20e0c61e0684 177 - Core Register
ganlikun 0:20e0c61e0684 178 - Core NVIC Register
ganlikun 0:20e0c61e0684 179 - Core SCB Register
ganlikun 0:20e0c61e0684 180 - Core SysTick Register
ganlikun 0:20e0c61e0684 181 ******************************************************************************/
ganlikun 0:20e0c61e0684 182 /**
ganlikun 0:20e0c61e0684 183 \defgroup CMSIS_core_register Defines and Type Definitions
ganlikun 0:20e0c61e0684 184 \brief Type definitions and defines for Cortex-M processor based devices.
ganlikun 0:20e0c61e0684 185 */
ganlikun 0:20e0c61e0684 186
ganlikun 0:20e0c61e0684 187 /**
ganlikun 0:20e0c61e0684 188 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 189 \defgroup CMSIS_CORE Status and Control Registers
ganlikun 0:20e0c61e0684 190 \brief Core Register type definitions.
ganlikun 0:20e0c61e0684 191 @{
ganlikun 0:20e0c61e0684 192 */
ganlikun 0:20e0c61e0684 193
ganlikun 0:20e0c61e0684 194 /**
ganlikun 0:20e0c61e0684 195 \brief Union type to access the Application Program Status Register (APSR).
ganlikun 0:20e0c61e0684 196 */
ganlikun 0:20e0c61e0684 197 typedef union
ganlikun 0:20e0c61e0684 198 {
ganlikun 0:20e0c61e0684 199 struct
ganlikun 0:20e0c61e0684 200 {
ganlikun 0:20e0c61e0684 201 uint32_t _reserved0:28; /*!< bit: 0..27 Reserved */
ganlikun 0:20e0c61e0684 202 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
ganlikun 0:20e0c61e0684 203 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
ganlikun 0:20e0c61e0684 204 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
ganlikun 0:20e0c61e0684 205 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
ganlikun 0:20e0c61e0684 206 } b; /*!< Structure used for bit access */
ganlikun 0:20e0c61e0684 207 uint32_t w; /*!< Type used for word access */
ganlikun 0:20e0c61e0684 208 } APSR_Type;
ganlikun 0:20e0c61e0684 209
ganlikun 0:20e0c61e0684 210 /* APSR Register Definitions */
ganlikun 0:20e0c61e0684 211 #define APSR_N_Pos 31U /*!< APSR: N Position */
ganlikun 0:20e0c61e0684 212 #define APSR_N_Msk (1UL << APSR_N_Pos) /*!< APSR: N Mask */
ganlikun 0:20e0c61e0684 213
ganlikun 0:20e0c61e0684 214 #define APSR_Z_Pos 30U /*!< APSR: Z Position */
ganlikun 0:20e0c61e0684 215 #define APSR_Z_Msk (1UL << APSR_Z_Pos) /*!< APSR: Z Mask */
ganlikun 0:20e0c61e0684 216
ganlikun 0:20e0c61e0684 217 #define APSR_C_Pos 29U /*!< APSR: C Position */
ganlikun 0:20e0c61e0684 218 #define APSR_C_Msk (1UL << APSR_C_Pos) /*!< APSR: C Mask */
ganlikun 0:20e0c61e0684 219
ganlikun 0:20e0c61e0684 220 #define APSR_V_Pos 28U /*!< APSR: V Position */
ganlikun 0:20e0c61e0684 221 #define APSR_V_Msk (1UL << APSR_V_Pos) /*!< APSR: V Mask */
ganlikun 0:20e0c61e0684 222
ganlikun 0:20e0c61e0684 223
ganlikun 0:20e0c61e0684 224 /**
ganlikun 0:20e0c61e0684 225 \brief Union type to access the Interrupt Program Status Register (IPSR).
ganlikun 0:20e0c61e0684 226 */
ganlikun 0:20e0c61e0684 227 typedef union
ganlikun 0:20e0c61e0684 228 {
ganlikun 0:20e0c61e0684 229 struct
ganlikun 0:20e0c61e0684 230 {
ganlikun 0:20e0c61e0684 231 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
ganlikun 0:20e0c61e0684 232 uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
ganlikun 0:20e0c61e0684 233 } b; /*!< Structure used for bit access */
ganlikun 0:20e0c61e0684 234 uint32_t w; /*!< Type used for word access */
ganlikun 0:20e0c61e0684 235 } IPSR_Type;
ganlikun 0:20e0c61e0684 236
ganlikun 0:20e0c61e0684 237 /* IPSR Register Definitions */
ganlikun 0:20e0c61e0684 238 #define IPSR_ISR_Pos 0U /*!< IPSR: ISR Position */
ganlikun 0:20e0c61e0684 239 #define IPSR_ISR_Msk (0x1FFUL /*<< IPSR_ISR_Pos*/) /*!< IPSR: ISR Mask */
ganlikun 0:20e0c61e0684 240
ganlikun 0:20e0c61e0684 241
ganlikun 0:20e0c61e0684 242 /**
ganlikun 0:20e0c61e0684 243 \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
ganlikun 0:20e0c61e0684 244 */
ganlikun 0:20e0c61e0684 245 typedef union
ganlikun 0:20e0c61e0684 246 {
ganlikun 0:20e0c61e0684 247 struct
ganlikun 0:20e0c61e0684 248 {
ganlikun 0:20e0c61e0684 249 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
ganlikun 0:20e0c61e0684 250 uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
ganlikun 0:20e0c61e0684 251 uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
ganlikun 0:20e0c61e0684 252 uint32_t _reserved1:3; /*!< bit: 25..27 Reserved */
ganlikun 0:20e0c61e0684 253 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
ganlikun 0:20e0c61e0684 254 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
ganlikun 0:20e0c61e0684 255 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
ganlikun 0:20e0c61e0684 256 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
ganlikun 0:20e0c61e0684 257 } b; /*!< Structure used for bit access */
ganlikun 0:20e0c61e0684 258 uint32_t w; /*!< Type used for word access */
ganlikun 0:20e0c61e0684 259 } xPSR_Type;
ganlikun 0:20e0c61e0684 260
ganlikun 0:20e0c61e0684 261 /* xPSR Register Definitions */
ganlikun 0:20e0c61e0684 262 #define xPSR_N_Pos 31U /*!< xPSR: N Position */
ganlikun 0:20e0c61e0684 263 #define xPSR_N_Msk (1UL << xPSR_N_Pos) /*!< xPSR: N Mask */
ganlikun 0:20e0c61e0684 264
ganlikun 0:20e0c61e0684 265 #define xPSR_Z_Pos 30U /*!< xPSR: Z Position */
ganlikun 0:20e0c61e0684 266 #define xPSR_Z_Msk (1UL << xPSR_Z_Pos) /*!< xPSR: Z Mask */
ganlikun 0:20e0c61e0684 267
ganlikun 0:20e0c61e0684 268 #define xPSR_C_Pos 29U /*!< xPSR: C Position */
ganlikun 0:20e0c61e0684 269 #define xPSR_C_Msk (1UL << xPSR_C_Pos) /*!< xPSR: C Mask */
ganlikun 0:20e0c61e0684 270
ganlikun 0:20e0c61e0684 271 #define xPSR_V_Pos 28U /*!< xPSR: V Position */
ganlikun 0:20e0c61e0684 272 #define xPSR_V_Msk (1UL << xPSR_V_Pos) /*!< xPSR: V Mask */
ganlikun 0:20e0c61e0684 273
ganlikun 0:20e0c61e0684 274 #define xPSR_T_Pos 24U /*!< xPSR: T Position */
ganlikun 0:20e0c61e0684 275 #define xPSR_T_Msk (1UL << xPSR_T_Pos) /*!< xPSR: T Mask */
ganlikun 0:20e0c61e0684 276
ganlikun 0:20e0c61e0684 277 #define xPSR_ISR_Pos 0U /*!< xPSR: ISR Position */
ganlikun 0:20e0c61e0684 278 #define xPSR_ISR_Msk (0x1FFUL /*<< xPSR_ISR_Pos*/) /*!< xPSR: ISR Mask */
ganlikun 0:20e0c61e0684 279
ganlikun 0:20e0c61e0684 280
ganlikun 0:20e0c61e0684 281 /**
ganlikun 0:20e0c61e0684 282 \brief Union type to access the Control Registers (CONTROL).
ganlikun 0:20e0c61e0684 283 */
ganlikun 0:20e0c61e0684 284 typedef union
ganlikun 0:20e0c61e0684 285 {
ganlikun 0:20e0c61e0684 286 struct
ganlikun 0:20e0c61e0684 287 {
ganlikun 0:20e0c61e0684 288 uint32_t _reserved0:1; /*!< bit: 0 Reserved */
ganlikun 0:20e0c61e0684 289 uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
ganlikun 0:20e0c61e0684 290 uint32_t _reserved1:30; /*!< bit: 2..31 Reserved */
ganlikun 0:20e0c61e0684 291 } b; /*!< Structure used for bit access */
ganlikun 0:20e0c61e0684 292 uint32_t w; /*!< Type used for word access */
ganlikun 0:20e0c61e0684 293 } CONTROL_Type;
ganlikun 0:20e0c61e0684 294
ganlikun 0:20e0c61e0684 295 /* CONTROL Register Definitions */
ganlikun 0:20e0c61e0684 296 #define CONTROL_SPSEL_Pos 1U /*!< CONTROL: SPSEL Position */
ganlikun 0:20e0c61e0684 297 #define CONTROL_SPSEL_Msk (1UL << CONTROL_SPSEL_Pos) /*!< CONTROL: SPSEL Mask */
ganlikun 0:20e0c61e0684 298
ganlikun 0:20e0c61e0684 299 /*@} end of group CMSIS_CORE */
ganlikun 0:20e0c61e0684 300
ganlikun 0:20e0c61e0684 301
ganlikun 0:20e0c61e0684 302 /**
ganlikun 0:20e0c61e0684 303 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 304 \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
ganlikun 0:20e0c61e0684 305 \brief Type definitions for the NVIC Registers
ganlikun 0:20e0c61e0684 306 @{
ganlikun 0:20e0c61e0684 307 */
ganlikun 0:20e0c61e0684 308
ganlikun 0:20e0c61e0684 309 /**
ganlikun 0:20e0c61e0684 310 \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
ganlikun 0:20e0c61e0684 311 */
ganlikun 0:20e0c61e0684 312 typedef struct
ganlikun 0:20e0c61e0684 313 {
ganlikun 0:20e0c61e0684 314 __IOM uint32_t ISER[1U]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
ganlikun 0:20e0c61e0684 315 uint32_t RESERVED0[31U];
ganlikun 0:20e0c61e0684 316 __IOM uint32_t ICER[1U]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
ganlikun 0:20e0c61e0684 317 uint32_t RSERVED1[31U];
ganlikun 0:20e0c61e0684 318 __IOM uint32_t ISPR[1U]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
ganlikun 0:20e0c61e0684 319 uint32_t RESERVED2[31U];
ganlikun 0:20e0c61e0684 320 __IOM uint32_t ICPR[1U]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
ganlikun 0:20e0c61e0684 321 uint32_t RESERVED3[31U];
ganlikun 0:20e0c61e0684 322 uint32_t RESERVED4[64U];
ganlikun 0:20e0c61e0684 323 __IOM uint32_t IP[8U]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
ganlikun 0:20e0c61e0684 324 } NVIC_Type;
ganlikun 0:20e0c61e0684 325
ganlikun 0:20e0c61e0684 326 /*@} end of group CMSIS_NVIC */
ganlikun 0:20e0c61e0684 327
ganlikun 0:20e0c61e0684 328
ganlikun 0:20e0c61e0684 329 /**
ganlikun 0:20e0c61e0684 330 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 331 \defgroup CMSIS_SCB System Control Block (SCB)
ganlikun 0:20e0c61e0684 332 \brief Type definitions for the System Control Block Registers
ganlikun 0:20e0c61e0684 333 @{
ganlikun 0:20e0c61e0684 334 */
ganlikun 0:20e0c61e0684 335
ganlikun 0:20e0c61e0684 336 /**
ganlikun 0:20e0c61e0684 337 \brief Structure type to access the System Control Block (SCB).
ganlikun 0:20e0c61e0684 338 */
ganlikun 0:20e0c61e0684 339 typedef struct
ganlikun 0:20e0c61e0684 340 {
ganlikun 0:20e0c61e0684 341 __IM uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
ganlikun 0:20e0c61e0684 342 __IOM uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
ganlikun 0:20e0c61e0684 343 uint32_t RESERVED0;
ganlikun 0:20e0c61e0684 344 __IOM uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
ganlikun 0:20e0c61e0684 345 __IOM uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
ganlikun 0:20e0c61e0684 346 __IOM uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
ganlikun 0:20e0c61e0684 347 uint32_t RESERVED1;
ganlikun 0:20e0c61e0684 348 __IOM uint32_t SHP[2U]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
ganlikun 0:20e0c61e0684 349 __IOM uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
ganlikun 0:20e0c61e0684 350 } SCB_Type;
ganlikun 0:20e0c61e0684 351
ganlikun 0:20e0c61e0684 352 /* SCB CPUID Register Definitions */
ganlikun 0:20e0c61e0684 353 #define SCB_CPUID_IMPLEMENTER_Pos 24U /*!< SCB CPUID: IMPLEMENTER Position */
ganlikun 0:20e0c61e0684 354 #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
ganlikun 0:20e0c61e0684 355
ganlikun 0:20e0c61e0684 356 #define SCB_CPUID_VARIANT_Pos 20U /*!< SCB CPUID: VARIANT Position */
ganlikun 0:20e0c61e0684 357 #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
ganlikun 0:20e0c61e0684 358
ganlikun 0:20e0c61e0684 359 #define SCB_CPUID_ARCHITECTURE_Pos 16U /*!< SCB CPUID: ARCHITECTURE Position */
ganlikun 0:20e0c61e0684 360 #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
ganlikun 0:20e0c61e0684 361
ganlikun 0:20e0c61e0684 362 #define SCB_CPUID_PARTNO_Pos 4U /*!< SCB CPUID: PARTNO Position */
ganlikun 0:20e0c61e0684 363 #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
ganlikun 0:20e0c61e0684 364
ganlikun 0:20e0c61e0684 365 #define SCB_CPUID_REVISION_Pos 0U /*!< SCB CPUID: REVISION Position */
ganlikun 0:20e0c61e0684 366 #define SCB_CPUID_REVISION_Msk (0xFUL /*<< SCB_CPUID_REVISION_Pos*/) /*!< SCB CPUID: REVISION Mask */
ganlikun 0:20e0c61e0684 367
ganlikun 0:20e0c61e0684 368 /* SCB Interrupt Control State Register Definitions */
ganlikun 0:20e0c61e0684 369 #define SCB_ICSR_NMIPENDSET_Pos 31U /*!< SCB ICSR: NMIPENDSET Position */
ganlikun 0:20e0c61e0684 370 #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
ganlikun 0:20e0c61e0684 371
ganlikun 0:20e0c61e0684 372 #define SCB_ICSR_PENDSVSET_Pos 28U /*!< SCB ICSR: PENDSVSET Position */
ganlikun 0:20e0c61e0684 373 #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
ganlikun 0:20e0c61e0684 374
ganlikun 0:20e0c61e0684 375 #define SCB_ICSR_PENDSVCLR_Pos 27U /*!< SCB ICSR: PENDSVCLR Position */
ganlikun 0:20e0c61e0684 376 #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
ganlikun 0:20e0c61e0684 377
ganlikun 0:20e0c61e0684 378 #define SCB_ICSR_PENDSTSET_Pos 26U /*!< SCB ICSR: PENDSTSET Position */
ganlikun 0:20e0c61e0684 379 #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
ganlikun 0:20e0c61e0684 380
ganlikun 0:20e0c61e0684 381 #define SCB_ICSR_PENDSTCLR_Pos 25U /*!< SCB ICSR: PENDSTCLR Position */
ganlikun 0:20e0c61e0684 382 #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
ganlikun 0:20e0c61e0684 383
ganlikun 0:20e0c61e0684 384 #define SCB_ICSR_ISRPREEMPT_Pos 23U /*!< SCB ICSR: ISRPREEMPT Position */
ganlikun 0:20e0c61e0684 385 #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
ganlikun 0:20e0c61e0684 386
ganlikun 0:20e0c61e0684 387 #define SCB_ICSR_ISRPENDING_Pos 22U /*!< SCB ICSR: ISRPENDING Position */
ganlikun 0:20e0c61e0684 388 #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
ganlikun 0:20e0c61e0684 389
ganlikun 0:20e0c61e0684 390 #define SCB_ICSR_VECTPENDING_Pos 12U /*!< SCB ICSR: VECTPENDING Position */
ganlikun 0:20e0c61e0684 391 #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
ganlikun 0:20e0c61e0684 392
ganlikun 0:20e0c61e0684 393 #define SCB_ICSR_VECTACTIVE_Pos 0U /*!< SCB ICSR: VECTACTIVE Position */
ganlikun 0:20e0c61e0684 394 #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL /*<< SCB_ICSR_VECTACTIVE_Pos*/) /*!< SCB ICSR: VECTACTIVE Mask */
ganlikun 0:20e0c61e0684 395
ganlikun 0:20e0c61e0684 396 /* SCB Application Interrupt and Reset Control Register Definitions */
ganlikun 0:20e0c61e0684 397 #define SCB_AIRCR_VECTKEY_Pos 16U /*!< SCB AIRCR: VECTKEY Position */
ganlikun 0:20e0c61e0684 398 #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
ganlikun 0:20e0c61e0684 399
ganlikun 0:20e0c61e0684 400 #define SCB_AIRCR_VECTKEYSTAT_Pos 16U /*!< SCB AIRCR: VECTKEYSTAT Position */
ganlikun 0:20e0c61e0684 401 #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
ganlikun 0:20e0c61e0684 402
ganlikun 0:20e0c61e0684 403 #define SCB_AIRCR_ENDIANESS_Pos 15U /*!< SCB AIRCR: ENDIANESS Position */
ganlikun 0:20e0c61e0684 404 #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
ganlikun 0:20e0c61e0684 405
ganlikun 0:20e0c61e0684 406 #define SCB_AIRCR_SYSRESETREQ_Pos 2U /*!< SCB AIRCR: SYSRESETREQ Position */
ganlikun 0:20e0c61e0684 407 #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
ganlikun 0:20e0c61e0684 408
ganlikun 0:20e0c61e0684 409 #define SCB_AIRCR_VECTCLRACTIVE_Pos 1U /*!< SCB AIRCR: VECTCLRACTIVE Position */
ganlikun 0:20e0c61e0684 410 #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
ganlikun 0:20e0c61e0684 411
ganlikun 0:20e0c61e0684 412 /* SCB System Control Register Definitions */
ganlikun 0:20e0c61e0684 413 #define SCB_SCR_SEVONPEND_Pos 4U /*!< SCB SCR: SEVONPEND Position */
ganlikun 0:20e0c61e0684 414 #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
ganlikun 0:20e0c61e0684 415
ganlikun 0:20e0c61e0684 416 #define SCB_SCR_SLEEPDEEP_Pos 2U /*!< SCB SCR: SLEEPDEEP Position */
ganlikun 0:20e0c61e0684 417 #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
ganlikun 0:20e0c61e0684 418
ganlikun 0:20e0c61e0684 419 #define SCB_SCR_SLEEPONEXIT_Pos 1U /*!< SCB SCR: SLEEPONEXIT Position */
ganlikun 0:20e0c61e0684 420 #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
ganlikun 0:20e0c61e0684 421
ganlikun 0:20e0c61e0684 422 /* SCB Configuration Control Register Definitions */
ganlikun 0:20e0c61e0684 423 #define SCB_CCR_STKALIGN_Pos 9U /*!< SCB CCR: STKALIGN Position */
ganlikun 0:20e0c61e0684 424 #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
ganlikun 0:20e0c61e0684 425
ganlikun 0:20e0c61e0684 426 #define SCB_CCR_UNALIGN_TRP_Pos 3U /*!< SCB CCR: UNALIGN_TRP Position */
ganlikun 0:20e0c61e0684 427 #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
ganlikun 0:20e0c61e0684 428
ganlikun 0:20e0c61e0684 429 /* SCB System Handler Control and State Register Definitions */
ganlikun 0:20e0c61e0684 430 #define SCB_SHCSR_SVCALLPENDED_Pos 15U /*!< SCB SHCSR: SVCALLPENDED Position */
ganlikun 0:20e0c61e0684 431 #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
ganlikun 0:20e0c61e0684 432
ganlikun 0:20e0c61e0684 433 /*@} end of group CMSIS_SCB */
ganlikun 0:20e0c61e0684 434
ganlikun 0:20e0c61e0684 435
ganlikun 0:20e0c61e0684 436 /**
ganlikun 0:20e0c61e0684 437 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 438 \defgroup CMSIS_SysTick System Tick Timer (SysTick)
ganlikun 0:20e0c61e0684 439 \brief Type definitions for the System Timer Registers.
ganlikun 0:20e0c61e0684 440 @{
ganlikun 0:20e0c61e0684 441 */
ganlikun 0:20e0c61e0684 442
ganlikun 0:20e0c61e0684 443 /**
ganlikun 0:20e0c61e0684 444 \brief Structure type to access the System Timer (SysTick).
ganlikun 0:20e0c61e0684 445 */
ganlikun 0:20e0c61e0684 446 typedef struct
ganlikun 0:20e0c61e0684 447 {
ganlikun 0:20e0c61e0684 448 __IOM uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
ganlikun 0:20e0c61e0684 449 __IOM uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
ganlikun 0:20e0c61e0684 450 __IOM uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
ganlikun 0:20e0c61e0684 451 __IM uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
ganlikun 0:20e0c61e0684 452 } SysTick_Type;
ganlikun 0:20e0c61e0684 453
ganlikun 0:20e0c61e0684 454 /* SysTick Control / Status Register Definitions */
ganlikun 0:20e0c61e0684 455 #define SysTick_CTRL_COUNTFLAG_Pos 16U /*!< SysTick CTRL: COUNTFLAG Position */
ganlikun 0:20e0c61e0684 456 #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
ganlikun 0:20e0c61e0684 457
ganlikun 0:20e0c61e0684 458 #define SysTick_CTRL_CLKSOURCE_Pos 2U /*!< SysTick CTRL: CLKSOURCE Position */
ganlikun 0:20e0c61e0684 459 #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
ganlikun 0:20e0c61e0684 460
ganlikun 0:20e0c61e0684 461 #define SysTick_CTRL_TICKINT_Pos 1U /*!< SysTick CTRL: TICKINT Position */
ganlikun 0:20e0c61e0684 462 #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
ganlikun 0:20e0c61e0684 463
ganlikun 0:20e0c61e0684 464 #define SysTick_CTRL_ENABLE_Pos 0U /*!< SysTick CTRL: ENABLE Position */
ganlikun 0:20e0c61e0684 465 #define SysTick_CTRL_ENABLE_Msk (1UL /*<< SysTick_CTRL_ENABLE_Pos*/) /*!< SysTick CTRL: ENABLE Mask */
ganlikun 0:20e0c61e0684 466
ganlikun 0:20e0c61e0684 467 /* SysTick Reload Register Definitions */
ganlikun 0:20e0c61e0684 468 #define SysTick_LOAD_RELOAD_Pos 0U /*!< SysTick LOAD: RELOAD Position */
ganlikun 0:20e0c61e0684 469 #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL /*<< SysTick_LOAD_RELOAD_Pos*/) /*!< SysTick LOAD: RELOAD Mask */
ganlikun 0:20e0c61e0684 470
ganlikun 0:20e0c61e0684 471 /* SysTick Current Register Definitions */
ganlikun 0:20e0c61e0684 472 #define SysTick_VAL_CURRENT_Pos 0U /*!< SysTick VAL: CURRENT Position */
ganlikun 0:20e0c61e0684 473 #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL /*<< SysTick_VAL_CURRENT_Pos*/) /*!< SysTick VAL: CURRENT Mask */
ganlikun 0:20e0c61e0684 474
ganlikun 0:20e0c61e0684 475 /* SysTick Calibration Register Definitions */
ganlikun 0:20e0c61e0684 476 #define SysTick_CALIB_NOREF_Pos 31U /*!< SysTick CALIB: NOREF Position */
ganlikun 0:20e0c61e0684 477 #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
ganlikun 0:20e0c61e0684 478
ganlikun 0:20e0c61e0684 479 #define SysTick_CALIB_SKEW_Pos 30U /*!< SysTick CALIB: SKEW Position */
ganlikun 0:20e0c61e0684 480 #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
ganlikun 0:20e0c61e0684 481
ganlikun 0:20e0c61e0684 482 #define SysTick_CALIB_TENMS_Pos 0U /*!< SysTick CALIB: TENMS Position */
ganlikun 0:20e0c61e0684 483 #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL /*<< SysTick_CALIB_TENMS_Pos*/) /*!< SysTick CALIB: TENMS Mask */
ganlikun 0:20e0c61e0684 484
ganlikun 0:20e0c61e0684 485 /*@} end of group CMSIS_SysTick */
ganlikun 0:20e0c61e0684 486
ganlikun 0:20e0c61e0684 487
ganlikun 0:20e0c61e0684 488 /**
ganlikun 0:20e0c61e0684 489 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 490 \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
ganlikun 0:20e0c61e0684 491 \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR) are only accessible over DAP and not via processor.
ganlikun 0:20e0c61e0684 492 Therefore they are not covered by the Cortex-M0 header file.
ganlikun 0:20e0c61e0684 493 @{
ganlikun 0:20e0c61e0684 494 */
ganlikun 0:20e0c61e0684 495 /*@} end of group CMSIS_CoreDebug */
ganlikun 0:20e0c61e0684 496
ganlikun 0:20e0c61e0684 497
ganlikun 0:20e0c61e0684 498 /**
ganlikun 0:20e0c61e0684 499 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 500 \defgroup CMSIS_core_bitfield Core register bit field macros
ganlikun 0:20e0c61e0684 501 \brief Macros for use with bit field definitions (xxx_Pos, xxx_Msk).
ganlikun 0:20e0c61e0684 502 @{
ganlikun 0:20e0c61e0684 503 */
ganlikun 0:20e0c61e0684 504
ganlikun 0:20e0c61e0684 505 /**
ganlikun 0:20e0c61e0684 506 \brief Mask and shift a bit field value for use in a register bit range.
ganlikun 0:20e0c61e0684 507 \param[in] field Name of the register bit field.
ganlikun 0:20e0c61e0684 508 \param[in] value Value of the bit field. This parameter is interpreted as an uint32_t type.
ganlikun 0:20e0c61e0684 509 \return Masked and shifted value.
ganlikun 0:20e0c61e0684 510 */
ganlikun 0:20e0c61e0684 511 #define _VAL2FLD(field, value) (((uint32_t)(value) << field ## _Pos) & field ## _Msk)
ganlikun 0:20e0c61e0684 512
ganlikun 0:20e0c61e0684 513 /**
ganlikun 0:20e0c61e0684 514 \brief Mask and shift a register value to extract a bit filed value.
ganlikun 0:20e0c61e0684 515 \param[in] field Name of the register bit field.
ganlikun 0:20e0c61e0684 516 \param[in] value Value of register. This parameter is interpreted as an uint32_t type.
ganlikun 0:20e0c61e0684 517 \return Masked and shifted bit field value.
ganlikun 0:20e0c61e0684 518 */
ganlikun 0:20e0c61e0684 519 #define _FLD2VAL(field, value) (((uint32_t)(value) & field ## _Msk) >> field ## _Pos)
ganlikun 0:20e0c61e0684 520
ganlikun 0:20e0c61e0684 521 /*@} end of group CMSIS_core_bitfield */
ganlikun 0:20e0c61e0684 522
ganlikun 0:20e0c61e0684 523
ganlikun 0:20e0c61e0684 524 /**
ganlikun 0:20e0c61e0684 525 \ingroup CMSIS_core_register
ganlikun 0:20e0c61e0684 526 \defgroup CMSIS_core_base Core Definitions
ganlikun 0:20e0c61e0684 527 \brief Definitions for base addresses, unions, and structures.
ganlikun 0:20e0c61e0684 528 @{
ganlikun 0:20e0c61e0684 529 */
ganlikun 0:20e0c61e0684 530
ganlikun 0:20e0c61e0684 531 /* Memory mapping of Core Hardware */
ganlikun 0:20e0c61e0684 532 #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
ganlikun 0:20e0c61e0684 533 #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
ganlikun 0:20e0c61e0684 534 #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
ganlikun 0:20e0c61e0684 535 #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
ganlikun 0:20e0c61e0684 536
ganlikun 0:20e0c61e0684 537 #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
ganlikun 0:20e0c61e0684 538 #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
ganlikun 0:20e0c61e0684 539 #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
ganlikun 0:20e0c61e0684 540
ganlikun 0:20e0c61e0684 541
ganlikun 0:20e0c61e0684 542 /*@} */
ganlikun 0:20e0c61e0684 543
ganlikun 0:20e0c61e0684 544
ganlikun 0:20e0c61e0684 545
ganlikun 0:20e0c61e0684 546 /*******************************************************************************
ganlikun 0:20e0c61e0684 547 * Hardware Abstraction Layer
ganlikun 0:20e0c61e0684 548 Core Function Interface contains:
ganlikun 0:20e0c61e0684 549 - Core NVIC Functions
ganlikun 0:20e0c61e0684 550 - Core SysTick Functions
ganlikun 0:20e0c61e0684 551 - Core Register Access Functions
ganlikun 0:20e0c61e0684 552 ******************************************************************************/
ganlikun 0:20e0c61e0684 553 /**
ganlikun 0:20e0c61e0684 554 \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
ganlikun 0:20e0c61e0684 555 */
ganlikun 0:20e0c61e0684 556
ganlikun 0:20e0c61e0684 557
ganlikun 0:20e0c61e0684 558
ganlikun 0:20e0c61e0684 559 /* ########################## NVIC functions #################################### */
ganlikun 0:20e0c61e0684 560 /**
ganlikun 0:20e0c61e0684 561 \ingroup CMSIS_Core_FunctionInterface
ganlikun 0:20e0c61e0684 562 \defgroup CMSIS_Core_NVICFunctions NVIC Functions
ganlikun 0:20e0c61e0684 563 \brief Functions that manage interrupts and exceptions via the NVIC.
ganlikun 0:20e0c61e0684 564 @{
ganlikun 0:20e0c61e0684 565 */
ganlikun 0:20e0c61e0684 566
ganlikun 0:20e0c61e0684 567 #ifdef CMSIS_NVIC_VIRTUAL
ganlikun 0:20e0c61e0684 568 #ifndef CMSIS_NVIC_VIRTUAL_HEADER_FILE
ganlikun 0:20e0c61e0684 569 #define CMSIS_NVIC_VIRTUAL_HEADER_FILE "cmsis_nvic_virtual.h"
ganlikun 0:20e0c61e0684 570 #endif
ganlikun 0:20e0c61e0684 571 #include CMSIS_NVIC_VIRTUAL_HEADER_FILE
ganlikun 0:20e0c61e0684 572 #else
ganlikun 0:20e0c61e0684 573 /*#define NVIC_SetPriorityGrouping __NVIC_SetPriorityGrouping not available for Cortex-M0 */
ganlikun 0:20e0c61e0684 574 /*#define NVIC_GetPriorityGrouping __NVIC_GetPriorityGrouping not available for Cortex-M0 */
ganlikun 0:20e0c61e0684 575 #define NVIC_EnableIRQ __NVIC_EnableIRQ
ganlikun 0:20e0c61e0684 576 #define NVIC_GetEnableIRQ __NVIC_GetEnableIRQ
ganlikun 0:20e0c61e0684 577 #define NVIC_DisableIRQ __NVIC_DisableIRQ
ganlikun 0:20e0c61e0684 578 #define NVIC_GetPendingIRQ __NVIC_GetPendingIRQ
ganlikun 0:20e0c61e0684 579 #define NVIC_SetPendingIRQ __NVIC_SetPendingIRQ
ganlikun 0:20e0c61e0684 580 #define NVIC_ClearPendingIRQ __NVIC_ClearPendingIRQ
ganlikun 0:20e0c61e0684 581 /*#define NVIC_GetActive __NVIC_GetActive not available for Cortex-M0 */
ganlikun 0:20e0c61e0684 582 #define NVIC_SetPriority __NVIC_SetPriority
ganlikun 0:20e0c61e0684 583 #define NVIC_GetPriority __NVIC_GetPriority
ganlikun 0:20e0c61e0684 584 #define NVIC_SystemReset __NVIC_SystemReset
ganlikun 0:20e0c61e0684 585 #endif /* CMSIS_NVIC_VIRTUAL */
ganlikun 0:20e0c61e0684 586
ganlikun 0:20e0c61e0684 587 #ifdef CMSIS_VECTAB_VIRTUAL
ganlikun 0:20e0c61e0684 588 #ifndef CMSIS_VECTAB_VIRTUAL_HEADER_FILE
ganlikun 0:20e0c61e0684 589 #define CMSIS_VECTAB_VIRTUAL_HEADER_FILE "cmsis_vectab_virtual.h"
ganlikun 0:20e0c61e0684 590 #endif
ganlikun 0:20e0c61e0684 591 #include CMSIS_VECTAB_VIRTUAL_HEADER_FILE
ganlikun 0:20e0c61e0684 592 #else
ganlikun 0:20e0c61e0684 593 #define NVIC_SetVector __NVIC_SetVector
ganlikun 0:20e0c61e0684 594 #define NVIC_GetVector __NVIC_GetVector
ganlikun 0:20e0c61e0684 595 #endif /* (CMSIS_VECTAB_VIRTUAL) */
ganlikun 0:20e0c61e0684 596
ganlikun 0:20e0c61e0684 597 #define NVIC_USER_IRQ_OFFSET 16
ganlikun 0:20e0c61e0684 598
ganlikun 0:20e0c61e0684 599
ganlikun 0:20e0c61e0684 600 /* Interrupt Priorities are WORD accessible only under ARMv6M */
ganlikun 0:20e0c61e0684 601 /* The following MACROS handle generation of the register offset and byte masks */
ganlikun 0:20e0c61e0684 602 #define _BIT_SHIFT(IRQn) ( ((((uint32_t)(int32_t)(IRQn)) ) & 0x03UL) * 8UL)
ganlikun 0:20e0c61e0684 603 #define _SHP_IDX(IRQn) ( (((((uint32_t)(int32_t)(IRQn)) & 0x0FUL)-8UL) >> 2UL) )
ganlikun 0:20e0c61e0684 604 #define _IP_IDX(IRQn) ( (((uint32_t)(int32_t)(IRQn)) >> 2UL) )
ganlikun 0:20e0c61e0684 605
ganlikun 0:20e0c61e0684 606
ganlikun 0:20e0c61e0684 607 /**
ganlikun 0:20e0c61e0684 608 \brief Enable Interrupt
ganlikun 0:20e0c61e0684 609 \details Enables a device specific interrupt in the NVIC interrupt controller.
ganlikun 0:20e0c61e0684 610 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 611 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 612 */
ganlikun 0:20e0c61e0684 613 __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 614 {
ganlikun 0:20e0c61e0684 615 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 616 {
ganlikun 0:20e0c61e0684 617 NVIC->ISER[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
ganlikun 0:20e0c61e0684 618 }
ganlikun 0:20e0c61e0684 619 }
ganlikun 0:20e0c61e0684 620
ganlikun 0:20e0c61e0684 621
ganlikun 0:20e0c61e0684 622 /**
ganlikun 0:20e0c61e0684 623 \brief Get Interrupt Enable status
ganlikun 0:20e0c61e0684 624 \details Returns a device specific interrupt enable status from the NVIC interrupt controller.
ganlikun 0:20e0c61e0684 625 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 626 \return 0 Interrupt is not enabled.
ganlikun 0:20e0c61e0684 627 \return 1 Interrupt is enabled.
ganlikun 0:20e0c61e0684 628 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 629 */
ganlikun 0:20e0c61e0684 630 __STATIC_INLINE uint32_t __NVIC_GetEnableIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 631 {
ganlikun 0:20e0c61e0684 632 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 633 {
ganlikun 0:20e0c61e0684 634 return((uint32_t)(((NVIC->ISER[0U] & (1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
ganlikun 0:20e0c61e0684 635 }
ganlikun 0:20e0c61e0684 636 else
ganlikun 0:20e0c61e0684 637 {
ganlikun 0:20e0c61e0684 638 return(0U);
ganlikun 0:20e0c61e0684 639 }
ganlikun 0:20e0c61e0684 640 }
ganlikun 0:20e0c61e0684 641
ganlikun 0:20e0c61e0684 642
ganlikun 0:20e0c61e0684 643 /**
ganlikun 0:20e0c61e0684 644 \brief Disable Interrupt
ganlikun 0:20e0c61e0684 645 \details Disables a device specific interrupt in the NVIC interrupt controller.
ganlikun 0:20e0c61e0684 646 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 647 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 648 */
ganlikun 0:20e0c61e0684 649 __STATIC_INLINE void __NVIC_DisableIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 650 {
ganlikun 0:20e0c61e0684 651 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 652 {
ganlikun 0:20e0c61e0684 653 NVIC->ICER[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
ganlikun 0:20e0c61e0684 654 __DSB();
ganlikun 0:20e0c61e0684 655 __ISB();
ganlikun 0:20e0c61e0684 656 }
ganlikun 0:20e0c61e0684 657 }
ganlikun 0:20e0c61e0684 658
ganlikun 0:20e0c61e0684 659
ganlikun 0:20e0c61e0684 660 /**
ganlikun 0:20e0c61e0684 661 \brief Get Pending Interrupt
ganlikun 0:20e0c61e0684 662 \details Reads the NVIC pending register and returns the pending bit for the specified device specific interrupt.
ganlikun 0:20e0c61e0684 663 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 664 \return 0 Interrupt status is not pending.
ganlikun 0:20e0c61e0684 665 \return 1 Interrupt status is pending.
ganlikun 0:20e0c61e0684 666 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 667 */
ganlikun 0:20e0c61e0684 668 __STATIC_INLINE uint32_t __NVIC_GetPendingIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 669 {
ganlikun 0:20e0c61e0684 670 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 671 {
ganlikun 0:20e0c61e0684 672 return((uint32_t)(((NVIC->ISPR[0U] & (1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
ganlikun 0:20e0c61e0684 673 }
ganlikun 0:20e0c61e0684 674 else
ganlikun 0:20e0c61e0684 675 {
ganlikun 0:20e0c61e0684 676 return(0U);
ganlikun 0:20e0c61e0684 677 }
ganlikun 0:20e0c61e0684 678 }
ganlikun 0:20e0c61e0684 679
ganlikun 0:20e0c61e0684 680
ganlikun 0:20e0c61e0684 681 /**
ganlikun 0:20e0c61e0684 682 \brief Set Pending Interrupt
ganlikun 0:20e0c61e0684 683 \details Sets the pending bit of a device specific interrupt in the NVIC pending register.
ganlikun 0:20e0c61e0684 684 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 685 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 686 */
ganlikun 0:20e0c61e0684 687 __STATIC_INLINE void __NVIC_SetPendingIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 688 {
ganlikun 0:20e0c61e0684 689 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 690 {
ganlikun 0:20e0c61e0684 691 NVIC->ISPR[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
ganlikun 0:20e0c61e0684 692 }
ganlikun 0:20e0c61e0684 693 }
ganlikun 0:20e0c61e0684 694
ganlikun 0:20e0c61e0684 695
ganlikun 0:20e0c61e0684 696 /**
ganlikun 0:20e0c61e0684 697 \brief Clear Pending Interrupt
ganlikun 0:20e0c61e0684 698 \details Clears the pending bit of a device specific interrupt in the NVIC pending register.
ganlikun 0:20e0c61e0684 699 \param [in] IRQn Device specific interrupt number.
ganlikun 0:20e0c61e0684 700 \note IRQn must not be negative.
ganlikun 0:20e0c61e0684 701 */
ganlikun 0:20e0c61e0684 702 __STATIC_INLINE void __NVIC_ClearPendingIRQ(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 703 {
ganlikun 0:20e0c61e0684 704 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 705 {
ganlikun 0:20e0c61e0684 706 NVIC->ICPR[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL));
ganlikun 0:20e0c61e0684 707 }
ganlikun 0:20e0c61e0684 708 }
ganlikun 0:20e0c61e0684 709
ganlikun 0:20e0c61e0684 710
ganlikun 0:20e0c61e0684 711 /**
ganlikun 0:20e0c61e0684 712 \brief Set Interrupt Priority
ganlikun 0:20e0c61e0684 713 \details Sets the priority of a device specific interrupt or a processor exception.
ganlikun 0:20e0c61e0684 714 The interrupt number can be positive to specify a device specific interrupt,
ganlikun 0:20e0c61e0684 715 or negative to specify a processor exception.
ganlikun 0:20e0c61e0684 716 \param [in] IRQn Interrupt number.
ganlikun 0:20e0c61e0684 717 \param [in] priority Priority to set.
ganlikun 0:20e0c61e0684 718 \note The priority cannot be set for every processor exception.
ganlikun 0:20e0c61e0684 719 */
ganlikun 0:20e0c61e0684 720 __STATIC_INLINE void __NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
ganlikun 0:20e0c61e0684 721 {
ganlikun 0:20e0c61e0684 722 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 723 {
ganlikun 0:20e0c61e0684 724 NVIC->IP[_IP_IDX(IRQn)] = ((uint32_t)(NVIC->IP[_IP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
ganlikun 0:20e0c61e0684 725 (((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
ganlikun 0:20e0c61e0684 726 }
ganlikun 0:20e0c61e0684 727 else
ganlikun 0:20e0c61e0684 728 {
ganlikun 0:20e0c61e0684 729 SCB->SHP[_SHP_IDX(IRQn)] = ((uint32_t)(SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
ganlikun 0:20e0c61e0684 730 (((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
ganlikun 0:20e0c61e0684 731 }
ganlikun 0:20e0c61e0684 732 }
ganlikun 0:20e0c61e0684 733
ganlikun 0:20e0c61e0684 734
ganlikun 0:20e0c61e0684 735 /**
ganlikun 0:20e0c61e0684 736 \brief Get Interrupt Priority
ganlikun 0:20e0c61e0684 737 \details Reads the priority of a device specific interrupt or a processor exception.
ganlikun 0:20e0c61e0684 738 The interrupt number can be positive to specify a device specific interrupt,
ganlikun 0:20e0c61e0684 739 or negative to specify a processor exception.
ganlikun 0:20e0c61e0684 740 \param [in] IRQn Interrupt number.
ganlikun 0:20e0c61e0684 741 \return Interrupt Priority.
ganlikun 0:20e0c61e0684 742 Value is aligned automatically to the implemented priority bits of the microcontroller.
ganlikun 0:20e0c61e0684 743 */
ganlikun 0:20e0c61e0684 744 __STATIC_INLINE uint32_t __NVIC_GetPriority(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 745 {
ganlikun 0:20e0c61e0684 746
ganlikun 0:20e0c61e0684 747 if ((int32_t)(IRQn) >= 0)
ganlikun 0:20e0c61e0684 748 {
ganlikun 0:20e0c61e0684 749 return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
ganlikun 0:20e0c61e0684 750 }
ganlikun 0:20e0c61e0684 751 else
ganlikun 0:20e0c61e0684 752 {
ganlikun 0:20e0c61e0684 753 return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
ganlikun 0:20e0c61e0684 754 }
ganlikun 0:20e0c61e0684 755 }
ganlikun 0:20e0c61e0684 756
ganlikun 0:20e0c61e0684 757
ganlikun 0:20e0c61e0684 758 /**
ganlikun 0:20e0c61e0684 759 \brief Set Interrupt Vector
ganlikun 0:20e0c61e0684 760 \details Sets an interrupt vector in SRAM based interrupt vector table.
ganlikun 0:20e0c61e0684 761 The interrupt number can be positive to specify a device specific interrupt,
ganlikun 0:20e0c61e0684 762 or negative to specify a processor exception.
ganlikun 0:20e0c61e0684 763 Address 0 must be mapped to SRAM.
ganlikun 0:20e0c61e0684 764 \param [in] IRQn Interrupt number
ganlikun 0:20e0c61e0684 765 \param [in] vector Address of interrupt handler function
ganlikun 0:20e0c61e0684 766 */
ganlikun 0:20e0c61e0684 767 __STATIC_INLINE void __NVIC_SetVector(IRQn_Type IRQn, uint32_t vector)
ganlikun 0:20e0c61e0684 768 {
ganlikun 0:20e0c61e0684 769 uint32_t *vectors = (uint32_t *)0x0U;
ganlikun 0:20e0c61e0684 770 vectors[(int32_t)IRQn + NVIC_USER_IRQ_OFFSET] = vector;
ganlikun 0:20e0c61e0684 771 }
ganlikun 0:20e0c61e0684 772
ganlikun 0:20e0c61e0684 773
ganlikun 0:20e0c61e0684 774 /**
ganlikun 0:20e0c61e0684 775 \brief Get Interrupt Vector
ganlikun 0:20e0c61e0684 776 \details Reads an interrupt vector from interrupt vector table.
ganlikun 0:20e0c61e0684 777 The interrupt number can be positive to specify a device specific interrupt,
ganlikun 0:20e0c61e0684 778 or negative to specify a processor exception.
ganlikun 0:20e0c61e0684 779 \param [in] IRQn Interrupt number.
ganlikun 0:20e0c61e0684 780 \return Address of interrupt handler function
ganlikun 0:20e0c61e0684 781 */
ganlikun 0:20e0c61e0684 782 __STATIC_INLINE uint32_t __NVIC_GetVector(IRQn_Type IRQn)
ganlikun 0:20e0c61e0684 783 {
ganlikun 0:20e0c61e0684 784 uint32_t *vectors = (uint32_t *)0x0U;
ganlikun 0:20e0c61e0684 785 return vectors[(int32_t)IRQn + NVIC_USER_IRQ_OFFSET];
ganlikun 0:20e0c61e0684 786 }
ganlikun 0:20e0c61e0684 787
ganlikun 0:20e0c61e0684 788
ganlikun 0:20e0c61e0684 789 /**
ganlikun 0:20e0c61e0684 790 \brief System Reset
ganlikun 0:20e0c61e0684 791 \details Initiates a system reset request to reset the MCU.
ganlikun 0:20e0c61e0684 792 */
ganlikun 0:20e0c61e0684 793 __STATIC_INLINE void __NVIC_SystemReset(void)
ganlikun 0:20e0c61e0684 794 {
ganlikun 0:20e0c61e0684 795 __DSB(); /* Ensure all outstanding memory accesses included
ganlikun 0:20e0c61e0684 796 buffered write are completed before reset */
ganlikun 0:20e0c61e0684 797 SCB->AIRCR = ((0x5FAUL << SCB_AIRCR_VECTKEY_Pos) |
ganlikun 0:20e0c61e0684 798 SCB_AIRCR_SYSRESETREQ_Msk);
ganlikun 0:20e0c61e0684 799 __DSB(); /* Ensure completion of memory access */
ganlikun 0:20e0c61e0684 800
ganlikun 0:20e0c61e0684 801 for(;;) /* wait until reset */
ganlikun 0:20e0c61e0684 802 {
ganlikun 0:20e0c61e0684 803 __NOP();
ganlikun 0:20e0c61e0684 804 }
ganlikun 0:20e0c61e0684 805 }
ganlikun 0:20e0c61e0684 806
ganlikun 0:20e0c61e0684 807 /*@} end of CMSIS_Core_NVICFunctions */
ganlikun 0:20e0c61e0684 808
ganlikun 0:20e0c61e0684 809
ganlikun 0:20e0c61e0684 810 /* ########################## FPU functions #################################### */
ganlikun 0:20e0c61e0684 811 /**
ganlikun 0:20e0c61e0684 812 \ingroup CMSIS_Core_FunctionInterface
ganlikun 0:20e0c61e0684 813 \defgroup CMSIS_Core_FpuFunctions FPU Functions
ganlikun 0:20e0c61e0684 814 \brief Function that provides FPU type.
ganlikun 0:20e0c61e0684 815 @{
ganlikun 0:20e0c61e0684 816 */
ganlikun 0:20e0c61e0684 817
ganlikun 0:20e0c61e0684 818 /**
ganlikun 0:20e0c61e0684 819 \brief get FPU type
ganlikun 0:20e0c61e0684 820 \details returns the FPU type
ganlikun 0:20e0c61e0684 821 \returns
ganlikun 0:20e0c61e0684 822 - \b 0: No FPU
ganlikun 0:20e0c61e0684 823 - \b 1: Single precision FPU
ganlikun 0:20e0c61e0684 824 - \b 2: Double + Single precision FPU
ganlikun 0:20e0c61e0684 825 */
ganlikun 0:20e0c61e0684 826 __STATIC_INLINE uint32_t SCB_GetFPUType(void)
ganlikun 0:20e0c61e0684 827 {
ganlikun 0:20e0c61e0684 828 return 0U; /* No FPU */
ganlikun 0:20e0c61e0684 829 }
ganlikun 0:20e0c61e0684 830
ganlikun 0:20e0c61e0684 831
ganlikun 0:20e0c61e0684 832 /*@} end of CMSIS_Core_FpuFunctions */
ganlikun 0:20e0c61e0684 833
ganlikun 0:20e0c61e0684 834
ganlikun 0:20e0c61e0684 835
ganlikun 0:20e0c61e0684 836 /* ################################## SysTick function ############################################ */
ganlikun 0:20e0c61e0684 837 /**
ganlikun 0:20e0c61e0684 838 \ingroup CMSIS_Core_FunctionInterface
ganlikun 0:20e0c61e0684 839 \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
ganlikun 0:20e0c61e0684 840 \brief Functions that configure the System.
ganlikun 0:20e0c61e0684 841 @{
ganlikun 0:20e0c61e0684 842 */
ganlikun 0:20e0c61e0684 843
ganlikun 0:20e0c61e0684 844 #if defined (__Vendor_SysTickConfig) && (__Vendor_SysTickConfig == 0U)
ganlikun 0:20e0c61e0684 845
ganlikun 0:20e0c61e0684 846 /**
ganlikun 0:20e0c61e0684 847 \brief System Tick Configuration
ganlikun 0:20e0c61e0684 848 \details Initializes the System Timer and its interrupt, and starts the System Tick Timer.
ganlikun 0:20e0c61e0684 849 Counter is in free running mode to generate periodic interrupts.
ganlikun 0:20e0c61e0684 850 \param [in] ticks Number of ticks between two interrupts.
ganlikun 0:20e0c61e0684 851 \return 0 Function succeeded.
ganlikun 0:20e0c61e0684 852 \return 1 Function failed.
ganlikun 0:20e0c61e0684 853 \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
ganlikun 0:20e0c61e0684 854 function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
ganlikun 0:20e0c61e0684 855 must contain a vendor-specific implementation of this function.
ganlikun 0:20e0c61e0684 856 */
ganlikun 0:20e0c61e0684 857 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
ganlikun 0:20e0c61e0684 858 {
ganlikun 0:20e0c61e0684 859 if ((ticks - 1UL) > SysTick_LOAD_RELOAD_Msk)
ganlikun 0:20e0c61e0684 860 {
ganlikun 0:20e0c61e0684 861 return (1UL); /* Reload value impossible */
ganlikun 0:20e0c61e0684 862 }
ganlikun 0:20e0c61e0684 863
ganlikun 0:20e0c61e0684 864 SysTick->LOAD = (uint32_t)(ticks - 1UL); /* set reload register */
ganlikun 0:20e0c61e0684 865 NVIC_SetPriority (SysTick_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL); /* set Priority for Systick Interrupt */
ganlikun 0:20e0c61e0684 866 SysTick->VAL = 0UL; /* Load the SysTick Counter Value */
ganlikun 0:20e0c61e0684 867 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
ganlikun 0:20e0c61e0684 868 SysTick_CTRL_TICKINT_Msk |
ganlikun 0:20e0c61e0684 869 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
ganlikun 0:20e0c61e0684 870 return (0UL); /* Function successful */
ganlikun 0:20e0c61e0684 871 }
ganlikun 0:20e0c61e0684 872
ganlikun 0:20e0c61e0684 873 #endif
ganlikun 0:20e0c61e0684 874
ganlikun 0:20e0c61e0684 875 /*@} end of CMSIS_Core_SysTickFunctions */
ganlikun 0:20e0c61e0684 876
ganlikun 0:20e0c61e0684 877
ganlikun 0:20e0c61e0684 878
ganlikun 0:20e0c61e0684 879
ganlikun 0:20e0c61e0684 880 #ifdef __cplusplus
ganlikun 0:20e0c61e0684 881 }
ganlikun 0:20e0c61e0684 882 #endif
ganlikun 0:20e0c61e0684 883
ganlikun 0:20e0c61e0684 884 #endif /* __CORE_CM0_H_DEPENDANT */
ganlikun 0:20e0c61e0684 885
ganlikun 0:20e0c61e0684 886 #endif /* __CMSIS_GENERIC */
ganlikun 0:20e0c61e0684 887
ganlikun 0:20e0c61e0684 888