mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_NUCLEO_F401RE/core_cm0.h@89:552587b429a1, 2014-09-12 (annotated)

Committer:
bogdanm
Date:
Fri Sep 12 16:41:52 2014 +0100
Revision:
89:552587b429a1
Parent:
77:869cf507173a
Child:
110:165afa46840b
Release 89 of the mbed library



Main changes:



- low power optimizations for Nordic targets

- code structure changes for Freescale K64F targets

- bug fixes in various backends

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 77:869cf507173a 1 /**************************************************************************//**
emilmont 77:869cf507173a 2 * @file core_cm0.h
emilmont 77:869cf507173a 3 * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
emilmont 77:869cf507173a 4 * @version V3.20
emilmont 77:869cf507173a 5 * @date 25. February 2013
emilmont 77:869cf507173a 6 *
emilmont 77:869cf507173a 7 * @note
emilmont 77:869cf507173a 8 *
emilmont 77:869cf507173a 9 ******************************************************************************/
emilmont 77:869cf507173a 10 /* Copyright (c) 2009 - 2013 ARM LIMITED
emilmont 77:869cf507173a 11
emilmont 77:869cf507173a 12 All rights reserved.
emilmont 77:869cf507173a 13 Redistribution and use in source and binary forms, with or without
emilmont 77:869cf507173a 14 modification, are permitted provided that the following conditions are met:
emilmont 77:869cf507173a 15 - Redistributions of source code must retain the above copyright
emilmont 77:869cf507173a 16 notice, this list of conditions and the following disclaimer.
emilmont 77:869cf507173a 17 - Redistributions in binary form must reproduce the above copyright
emilmont 77:869cf507173a 18 notice, this list of conditions and the following disclaimer in the
emilmont 77:869cf507173a 19 documentation and/or other materials provided with the distribution.
emilmont 77:869cf507173a 20 - Neither the name of ARM nor the names of its contributors may be used
emilmont 77:869cf507173a 21 to endorse or promote products derived from this software without
emilmont 77:869cf507173a 22 specific prior written permission.
emilmont 77:869cf507173a 23 *
emilmont 77:869cf507173a 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
emilmont 77:869cf507173a 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
emilmont 77:869cf507173a 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
emilmont 77:869cf507173a 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
emilmont 77:869cf507173a 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
emilmont 77:869cf507173a 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
emilmont 77:869cf507173a 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
emilmont 77:869cf507173a 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
emilmont 77:869cf507173a 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
emilmont 77:869cf507173a 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
emilmont 77:869cf507173a 34 POSSIBILITY OF SUCH DAMAGE.
emilmont 77:869cf507173a 35 ---------------------------------------------------------------------------*/
emilmont 77:869cf507173a 36
emilmont 77:869cf507173a 37
emilmont 77:869cf507173a 38 #if defined ( __ICCARM__ )
emilmont 77:869cf507173a 39 #pragma system_include /* treat file as system include file for MISRA check */
emilmont 77:869cf507173a 40 #endif
emilmont 77:869cf507173a 41
emilmont 77:869cf507173a 42 #ifdef __cplusplus
emilmont 77:869cf507173a 43 extern "C" {
emilmont 77:869cf507173a 44 #endif
emilmont 77:869cf507173a 45
emilmont 77:869cf507173a 46 #ifndef __CORE_CM0_H_GENERIC
emilmont 77:869cf507173a 47 #define __CORE_CM0_H_GENERIC
emilmont 77:869cf507173a 48
emilmont 77:869cf507173a 49 /** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
emilmont 77:869cf507173a 50 CMSIS violates the following MISRA-C:2004 rules:
emilmont 77:869cf507173a 51
emilmont 77:869cf507173a 52 \li Required Rule 8.5, object/function definition in header file.<br>
emilmont 77:869cf507173a 53 Function definitions in header files are used to allow 'inlining'.
emilmont 77:869cf507173a 54
emilmont 77:869cf507173a 55 \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
emilmont 77:869cf507173a 56 Unions are used for effective representation of core registers.
emilmont 77:869cf507173a 57
emilmont 77:869cf507173a 58 \li Advisory Rule 19.7, Function-like macro defined.<br>
emilmont 77:869cf507173a 59 Function-like macros are used to allow more efficient code.
emilmont 77:869cf507173a 60 */
emilmont 77:869cf507173a 61
emilmont 77:869cf507173a 62
emilmont 77:869cf507173a 63 /*******************************************************************************
emilmont 77:869cf507173a 64 * CMSIS definitions
emilmont 77:869cf507173a 65 ******************************************************************************/
emilmont 77:869cf507173a 66 /** \ingroup Cortex_M0
emilmont 77:869cf507173a 67 @{
emilmont 77:869cf507173a 68 */
emilmont 77:869cf507173a 69
emilmont 77:869cf507173a 70 /* CMSIS CM0 definitions */
emilmont 77:869cf507173a 71 #define __CM0_CMSIS_VERSION_MAIN (0x03) /*!< [31:16] CMSIS HAL main version */
emilmont 77:869cf507173a 72 #define __CM0_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */
emilmont 77:869cf507173a 73 #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | \
emilmont 77:869cf507173a 74 __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */
emilmont 77:869cf507173a 75
emilmont 77:869cf507173a 76 #define __CORTEX_M (0x00) /*!< Cortex-M Core */
emilmont 77:869cf507173a 77
emilmont 77:869cf507173a 78
emilmont 77:869cf507173a 79 #if defined ( __CC_ARM )
emilmont 77:869cf507173a 80 #define __ASM __asm /*!< asm keyword for ARM Compiler */
emilmont 77:869cf507173a 81 #define __INLINE __inline /*!< inline keyword for ARM Compiler */
emilmont 77:869cf507173a 82 #define __STATIC_INLINE static __inline
emilmont 77:869cf507173a 83
emilmont 77:869cf507173a 84 #elif defined ( __ICCARM__ )
emilmont 77:869cf507173a 85 #define __ASM __asm /*!< asm keyword for IAR Compiler */
emilmont 77:869cf507173a 86 #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
emilmont 77:869cf507173a 87 #define __STATIC_INLINE static inline
emilmont 77:869cf507173a 88
emilmont 77:869cf507173a 89 #elif defined ( __GNUC__ )
emilmont 77:869cf507173a 90 #define __ASM __asm /*!< asm keyword for GNU Compiler */
emilmont 77:869cf507173a 91 #define __INLINE inline /*!< inline keyword for GNU Compiler */
emilmont 77:869cf507173a 92 #define __STATIC_INLINE static inline
emilmont 77:869cf507173a 93
emilmont 77:869cf507173a 94 #elif defined ( __TASKING__ )
emilmont 77:869cf507173a 95 #define __ASM __asm /*!< asm keyword for TASKING Compiler */
emilmont 77:869cf507173a 96 #define __INLINE inline /*!< inline keyword for TASKING Compiler */
emilmont 77:869cf507173a 97 #define __STATIC_INLINE static inline
emilmont 77:869cf507173a 98
emilmont 77:869cf507173a 99 #endif
emilmont 77:869cf507173a 100
emilmont 77:869cf507173a 101 /** __FPU_USED indicates whether an FPU is used or not. This core does not support an FPU at all
emilmont 77:869cf507173a 102 */
emilmont 77:869cf507173a 103 #define __FPU_USED 0
emilmont 77:869cf507173a 104
emilmont 77:869cf507173a 105 #if defined ( __CC_ARM )
emilmont 77:869cf507173a 106 #if defined __TARGET_FPU_VFP
emilmont 77:869cf507173a 107 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 77:869cf507173a 108 #endif
emilmont 77:869cf507173a 109
emilmont 77:869cf507173a 110 #elif defined ( __ICCARM__ )
emilmont 77:869cf507173a 111 #if defined __ARMVFP__
emilmont 77:869cf507173a 112 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 77:869cf507173a 113 #endif
emilmont 77:869cf507173a 114
emilmont 77:869cf507173a 115 #elif defined ( __GNUC__ )
emilmont 77:869cf507173a 116 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
emilmont 77:869cf507173a 117 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 77:869cf507173a 118 #endif
emilmont 77:869cf507173a 119
emilmont 77:869cf507173a 120 #elif defined ( __TASKING__ )
emilmont 77:869cf507173a 121 #if defined __FPU_VFP__
emilmont 77:869cf507173a 122 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 77:869cf507173a 123 #endif
emilmont 77:869cf507173a 124 #endif
emilmont 77:869cf507173a 125
emilmont 77:869cf507173a 126 #include <stdint.h> /* standard types definitions */
emilmont 77:869cf507173a 127 #include <core_cmInstr.h> /* Core Instruction Access */
emilmont 77:869cf507173a 128 #include <core_cmFunc.h> /* Core Function Access */
emilmont 77:869cf507173a 129
emilmont 77:869cf507173a 130 #endif /* __CORE_CM0_H_GENERIC */
emilmont 77:869cf507173a 131
emilmont 77:869cf507173a 132 #ifndef __CMSIS_GENERIC
emilmont 77:869cf507173a 133
emilmont 77:869cf507173a 134 #ifndef __CORE_CM0_H_DEPENDANT
emilmont 77:869cf507173a 135 #define __CORE_CM0_H_DEPENDANT
emilmont 77:869cf507173a 136
emilmont 77:869cf507173a 137 /* check device defines and use defaults */
emilmont 77:869cf507173a 138 #if defined __CHECK_DEVICE_DEFINES
emilmont 77:869cf507173a 139 #ifndef __CM0_REV
emilmont 77:869cf507173a 140 #define __CM0_REV 0x0000
emilmont 77:869cf507173a 141 #warning "__CM0_REV not defined in device header file; using default!"
emilmont 77:869cf507173a 142 #endif
emilmont 77:869cf507173a 143
emilmont 77:869cf507173a 144 #ifndef __NVIC_PRIO_BITS
emilmont 77:869cf507173a 145 #define __NVIC_PRIO_BITS 2
emilmont 77:869cf507173a 146 #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
emilmont 77:869cf507173a 147 #endif
emilmont 77:869cf507173a 148
emilmont 77:869cf507173a 149 #ifndef __Vendor_SysTickConfig
emilmont 77:869cf507173a 150 #define __Vendor_SysTickConfig 0
emilmont 77:869cf507173a 151 #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
emilmont 77:869cf507173a 152 #endif
emilmont 77:869cf507173a 153 #endif
emilmont 77:869cf507173a 154
emilmont 77:869cf507173a 155 /* IO definitions (access restrictions to peripheral registers) */
emilmont 77:869cf507173a 156 /**
emilmont 77:869cf507173a 157 \defgroup CMSIS_glob_defs CMSIS Global Defines
emilmont 77:869cf507173a 158
emilmont 77:869cf507173a 159 <strong>IO Type Qualifiers</strong> are used
emilmont 77:869cf507173a 160 \li to specify the access to peripheral variables.
emilmont 77:869cf507173a 161 \li for automatic generation of peripheral register debug information.
emilmont 77:869cf507173a 162 */
emilmont 77:869cf507173a 163 #ifdef __cplusplus
emilmont 77:869cf507173a 164 #define __I volatile /*!< Defines 'read only' permissions */
emilmont 77:869cf507173a 165 #else
emilmont 77:869cf507173a 166 #define __I volatile const /*!< Defines 'read only' permissions */
emilmont 77:869cf507173a 167 #endif
emilmont 77:869cf507173a 168 #define __O volatile /*!< Defines 'write only' permissions */
emilmont 77:869cf507173a 169 #define __IO volatile /*!< Defines 'read / write' permissions */
emilmont 77:869cf507173a 170
emilmont 77:869cf507173a 171 /*@} end of group Cortex_M0 */
emilmont 77:869cf507173a 172
emilmont 77:869cf507173a 173
emilmont 77:869cf507173a 174
emilmont 77:869cf507173a 175 /*******************************************************************************
emilmont 77:869cf507173a 176 * Register Abstraction
emilmont 77:869cf507173a 177 Core Register contain:
emilmont 77:869cf507173a 178 - Core Register
emilmont 77:869cf507173a 179 - Core NVIC Register
emilmont 77:869cf507173a 180 - Core SCB Register
emilmont 77:869cf507173a 181 - Core SysTick Register
emilmont 77:869cf507173a 182 ******************************************************************************/
emilmont 77:869cf507173a 183 /** \defgroup CMSIS_core_register Defines and Type Definitions
emilmont 77:869cf507173a 184 \brief Type definitions and defines for Cortex-M processor based devices.
emilmont 77:869cf507173a 185 */
emilmont 77:869cf507173a 186
emilmont 77:869cf507173a 187 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 188 \defgroup CMSIS_CORE Status and Control Registers
emilmont 77:869cf507173a 189 \brief Core Register type definitions.
emilmont 77:869cf507173a 190 @{
emilmont 77:869cf507173a 191 */
emilmont 77:869cf507173a 192
emilmont 77:869cf507173a 193 /** \brief Union type to access the Application Program Status Register (APSR).
emilmont 77:869cf507173a 194 */
emilmont 77:869cf507173a 195 typedef union
emilmont 77:869cf507173a 196 {
emilmont 77:869cf507173a 197 struct
emilmont 77:869cf507173a 198 {
emilmont 77:869cf507173a 199 #if (__CORTEX_M != 0x04)
emilmont 77:869cf507173a 200 uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */
emilmont 77:869cf507173a 201 #else
emilmont 77:869cf507173a 202 uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */
emilmont 77:869cf507173a 203 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
emilmont 77:869cf507173a 204 uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */
emilmont 77:869cf507173a 205 #endif
emilmont 77:869cf507173a 206 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
emilmont 77:869cf507173a 207 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
emilmont 77:869cf507173a 208 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
emilmont 77:869cf507173a 209 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
emilmont 77:869cf507173a 210 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
emilmont 77:869cf507173a 211 } b; /*!< Structure used for bit access */
emilmont 77:869cf507173a 212 uint32_t w; /*!< Type used for word access */
emilmont 77:869cf507173a 213 } APSR_Type;
emilmont 77:869cf507173a 214
emilmont 77:869cf507173a 215
emilmont 77:869cf507173a 216 /** \brief Union type to access the Interrupt Program Status Register (IPSR).
emilmont 77:869cf507173a 217 */
emilmont 77:869cf507173a 218 typedef union
emilmont 77:869cf507173a 219 {
emilmont 77:869cf507173a 220 struct
emilmont 77:869cf507173a 221 {
emilmont 77:869cf507173a 222 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
emilmont 77:869cf507173a 223 uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
emilmont 77:869cf507173a 224 } b; /*!< Structure used for bit access */
emilmont 77:869cf507173a 225 uint32_t w; /*!< Type used for word access */
emilmont 77:869cf507173a 226 } IPSR_Type;
emilmont 77:869cf507173a 227
emilmont 77:869cf507173a 228
emilmont 77:869cf507173a 229 /** \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
emilmont 77:869cf507173a 230 */
emilmont 77:869cf507173a 231 typedef union
emilmont 77:869cf507173a 232 {
emilmont 77:869cf507173a 233 struct
emilmont 77:869cf507173a 234 {
emilmont 77:869cf507173a 235 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
emilmont 77:869cf507173a 236 #if (__CORTEX_M != 0x04)
emilmont 77:869cf507173a 237 uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
emilmont 77:869cf507173a 238 #else
emilmont 77:869cf507173a 239 uint32_t _reserved0:7; /*!< bit: 9..15 Reserved */
emilmont 77:869cf507173a 240 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
emilmont 77:869cf507173a 241 uint32_t _reserved1:4; /*!< bit: 20..23 Reserved */
emilmont 77:869cf507173a 242 #endif
emilmont 77:869cf507173a 243 uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
emilmont 77:869cf507173a 244 uint32_t IT:2; /*!< bit: 25..26 saved IT state (read 0) */
emilmont 77:869cf507173a 245 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
emilmont 77:869cf507173a 246 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
emilmont 77:869cf507173a 247 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
emilmont 77:869cf507173a 248 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
emilmont 77:869cf507173a 249 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
emilmont 77:869cf507173a 250 } b; /*!< Structure used for bit access */
emilmont 77:869cf507173a 251 uint32_t w; /*!< Type used for word access */
emilmont 77:869cf507173a 252 } xPSR_Type;
emilmont 77:869cf507173a 253
emilmont 77:869cf507173a 254
emilmont 77:869cf507173a 255 /** \brief Union type to access the Control Registers (CONTROL).
emilmont 77:869cf507173a 256 */
emilmont 77:869cf507173a 257 typedef union
emilmont 77:869cf507173a 258 {
emilmont 77:869cf507173a 259 struct
emilmont 77:869cf507173a 260 {
emilmont 77:869cf507173a 261 uint32_t nPRIV:1; /*!< bit: 0 Execution privilege in Thread mode */
emilmont 77:869cf507173a 262 uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
emilmont 77:869cf507173a 263 uint32_t FPCA:1; /*!< bit: 2 FP extension active flag */
emilmont 77:869cf507173a 264 uint32_t _reserved0:29; /*!< bit: 3..31 Reserved */
emilmont 77:869cf507173a 265 } b; /*!< Structure used for bit access */
emilmont 77:869cf507173a 266 uint32_t w; /*!< Type used for word access */
emilmont 77:869cf507173a 267 } CONTROL_Type;
emilmont 77:869cf507173a 268
emilmont 77:869cf507173a 269 /*@} end of group CMSIS_CORE */
emilmont 77:869cf507173a 270
emilmont 77:869cf507173a 271
emilmont 77:869cf507173a 272 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 273 \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
emilmont 77:869cf507173a 274 \brief Type definitions for the NVIC Registers
emilmont 77:869cf507173a 275 @{
emilmont 77:869cf507173a 276 */
emilmont 77:869cf507173a 277
emilmont 77:869cf507173a 278 /** \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
emilmont 77:869cf507173a 279 */
emilmont 77:869cf507173a 280 typedef struct
emilmont 77:869cf507173a 281 {
emilmont 77:869cf507173a 282 __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
emilmont 77:869cf507173a 283 uint32_t RESERVED0[31];
emilmont 77:869cf507173a 284 __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
emilmont 77:869cf507173a 285 uint32_t RSERVED1[31];
emilmont 77:869cf507173a 286 __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
emilmont 77:869cf507173a 287 uint32_t RESERVED2[31];
emilmont 77:869cf507173a 288 __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
emilmont 77:869cf507173a 289 uint32_t RESERVED3[31];
emilmont 77:869cf507173a 290 uint32_t RESERVED4[64];
emilmont 77:869cf507173a 291 __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
emilmont 77:869cf507173a 292 } NVIC_Type;
emilmont 77:869cf507173a 293
emilmont 77:869cf507173a 294 /*@} end of group CMSIS_NVIC */
emilmont 77:869cf507173a 295
emilmont 77:869cf507173a 296
emilmont 77:869cf507173a 297 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 298 \defgroup CMSIS_SCB System Control Block (SCB)
emilmont 77:869cf507173a 299 \brief Type definitions for the System Control Block Registers
emilmont 77:869cf507173a 300 @{
emilmont 77:869cf507173a 301 */
emilmont 77:869cf507173a 302
emilmont 77:869cf507173a 303 /** \brief Structure type to access the System Control Block (SCB).
emilmont 77:869cf507173a 304 */
emilmont 77:869cf507173a 305 typedef struct
emilmont 77:869cf507173a 306 {
emilmont 77:869cf507173a 307 __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
emilmont 77:869cf507173a 308 __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
emilmont 77:869cf507173a 309 uint32_t RESERVED0;
emilmont 77:869cf507173a 310 __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
emilmont 77:869cf507173a 311 __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
emilmont 77:869cf507173a 312 __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
emilmont 77:869cf507173a 313 uint32_t RESERVED1;
emilmont 77:869cf507173a 314 __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
emilmont 77:869cf507173a 315 __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
emilmont 77:869cf507173a 316 } SCB_Type;
emilmont 77:869cf507173a 317
emilmont 77:869cf507173a 318 /* SCB CPUID Register Definitions */
emilmont 77:869cf507173a 319 #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */
emilmont 77:869cf507173a 320 #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
emilmont 77:869cf507173a 321
emilmont 77:869cf507173a 322 #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */
emilmont 77:869cf507173a 323 #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
emilmont 77:869cf507173a 324
emilmont 77:869cf507173a 325 #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */
emilmont 77:869cf507173a 326 #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
emilmont 77:869cf507173a 327
emilmont 77:869cf507173a 328 #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */
emilmont 77:869cf507173a 329 #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
emilmont 77:869cf507173a 330
emilmont 77:869cf507173a 331 #define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */
emilmont 77:869cf507173a 332 #define SCB_CPUID_REVISION_Msk (0xFUL << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */
emilmont 77:869cf507173a 333
emilmont 77:869cf507173a 334 /* SCB Interrupt Control State Register Definitions */
emilmont 77:869cf507173a 335 #define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */
emilmont 77:869cf507173a 336 #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
emilmont 77:869cf507173a 337
emilmont 77:869cf507173a 338 #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */
emilmont 77:869cf507173a 339 #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
emilmont 77:869cf507173a 340
emilmont 77:869cf507173a 341 #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */
emilmont 77:869cf507173a 342 #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
emilmont 77:869cf507173a 343
emilmont 77:869cf507173a 344 #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */
emilmont 77:869cf507173a 345 #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
emilmont 77:869cf507173a 346
emilmont 77:869cf507173a 347 #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */
emilmont 77:869cf507173a 348 #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
emilmont 77:869cf507173a 349
emilmont 77:869cf507173a 350 #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */
emilmont 77:869cf507173a 351 #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
emilmont 77:869cf507173a 352
emilmont 77:869cf507173a 353 #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */
emilmont 77:869cf507173a 354 #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
emilmont 77:869cf507173a 355
emilmont 77:869cf507173a 356 #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */
emilmont 77:869cf507173a 357 #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
emilmont 77:869cf507173a 358
emilmont 77:869cf507173a 359 #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */
emilmont 77:869cf507173a 360 #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */
emilmont 77:869cf507173a 361
emilmont 77:869cf507173a 362 /* SCB Application Interrupt and Reset Control Register Definitions */
emilmont 77:869cf507173a 363 #define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */
emilmont 77:869cf507173a 364 #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
emilmont 77:869cf507173a 365
emilmont 77:869cf507173a 366 #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */
emilmont 77:869cf507173a 367 #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
emilmont 77:869cf507173a 368
emilmont 77:869cf507173a 369 #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */
emilmont 77:869cf507173a 370 #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
emilmont 77:869cf507173a 371
emilmont 77:869cf507173a 372 #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */
emilmont 77:869cf507173a 373 #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
emilmont 77:869cf507173a 374
emilmont 77:869cf507173a 375 #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */
emilmont 77:869cf507173a 376 #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
emilmont 77:869cf507173a 377
emilmont 77:869cf507173a 378 /* SCB System Control Register Definitions */
emilmont 77:869cf507173a 379 #define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */
emilmont 77:869cf507173a 380 #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
emilmont 77:869cf507173a 381
emilmont 77:869cf507173a 382 #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */
emilmont 77:869cf507173a 383 #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
emilmont 77:869cf507173a 384
emilmont 77:869cf507173a 385 #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */
emilmont 77:869cf507173a 386 #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
emilmont 77:869cf507173a 387
emilmont 77:869cf507173a 388 /* SCB Configuration Control Register Definitions */
emilmont 77:869cf507173a 389 #define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */
emilmont 77:869cf507173a 390 #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
emilmont 77:869cf507173a 391
emilmont 77:869cf507173a 392 #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */
emilmont 77:869cf507173a 393 #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
emilmont 77:869cf507173a 394
emilmont 77:869cf507173a 395 /* SCB System Handler Control and State Register Definitions */
emilmont 77:869cf507173a 396 #define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */
emilmont 77:869cf507173a 397 #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
emilmont 77:869cf507173a 398
emilmont 77:869cf507173a 399 /*@} end of group CMSIS_SCB */
emilmont 77:869cf507173a 400
emilmont 77:869cf507173a 401
emilmont 77:869cf507173a 402 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 403 \defgroup CMSIS_SysTick System Tick Timer (SysTick)
emilmont 77:869cf507173a 404 \brief Type definitions for the System Timer Registers.
emilmont 77:869cf507173a 405 @{
emilmont 77:869cf507173a 406 */
emilmont 77:869cf507173a 407
emilmont 77:869cf507173a 408 /** \brief Structure type to access the System Timer (SysTick).
emilmont 77:869cf507173a 409 */
emilmont 77:869cf507173a 410 typedef struct
emilmont 77:869cf507173a 411 {
emilmont 77:869cf507173a 412 __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
emilmont 77:869cf507173a 413 __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
emilmont 77:869cf507173a 414 __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
emilmont 77:869cf507173a 415 __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
emilmont 77:869cf507173a 416 } SysTick_Type;
emilmont 77:869cf507173a 417
emilmont 77:869cf507173a 418 /* SysTick Control / Status Register Definitions */
emilmont 77:869cf507173a 419 #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */
emilmont 77:869cf507173a 420 #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
emilmont 77:869cf507173a 421
emilmont 77:869cf507173a 422 #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */
emilmont 77:869cf507173a 423 #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
emilmont 77:869cf507173a 424
emilmont 77:869cf507173a 425 #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */
emilmont 77:869cf507173a 426 #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
emilmont 77:869cf507173a 427
emilmont 77:869cf507173a 428 #define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */
emilmont 77:869cf507173a 429 #define SysTick_CTRL_ENABLE_Msk (1UL << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */
emilmont 77:869cf507173a 430
emilmont 77:869cf507173a 431 /* SysTick Reload Register Definitions */
emilmont 77:869cf507173a 432 #define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */
emilmont 77:869cf507173a 433 #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */
emilmont 77:869cf507173a 434
emilmont 77:869cf507173a 435 /* SysTick Current Register Definitions */
emilmont 77:869cf507173a 436 #define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */
emilmont 77:869cf507173a 437 #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */
emilmont 77:869cf507173a 438
emilmont 77:869cf507173a 439 /* SysTick Calibration Register Definitions */
emilmont 77:869cf507173a 440 #define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */
emilmont 77:869cf507173a 441 #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
emilmont 77:869cf507173a 442
emilmont 77:869cf507173a 443 #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */
emilmont 77:869cf507173a 444 #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
emilmont 77:869cf507173a 445
emilmont 77:869cf507173a 446 #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */
emilmont 77:869cf507173a 447 #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */
emilmont 77:869cf507173a 448
emilmont 77:869cf507173a 449 /*@} end of group CMSIS_SysTick */
emilmont 77:869cf507173a 450
emilmont 77:869cf507173a 451
emilmont 77:869cf507173a 452 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 453 \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
emilmont 77:869cf507173a 454 \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR)
emilmont 77:869cf507173a 455 are only accessible over DAP and not via processor. Therefore
emilmont 77:869cf507173a 456 they are not covered by the Cortex-M0 header file.
emilmont 77:869cf507173a 457 @{
emilmont 77:869cf507173a 458 */
emilmont 77:869cf507173a 459 /*@} end of group CMSIS_CoreDebug */
emilmont 77:869cf507173a 460
emilmont 77:869cf507173a 461
emilmont 77:869cf507173a 462 /** \ingroup CMSIS_core_register
emilmont 77:869cf507173a 463 \defgroup CMSIS_core_base Core Definitions
emilmont 77:869cf507173a 464 \brief Definitions for base addresses, unions, and structures.
emilmont 77:869cf507173a 465 @{
emilmont 77:869cf507173a 466 */
emilmont 77:869cf507173a 467
emilmont 77:869cf507173a 468 /* Memory mapping of Cortex-M0 Hardware */
emilmont 77:869cf507173a 469 #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
emilmont 77:869cf507173a 470 #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
emilmont 77:869cf507173a 471 #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
emilmont 77:869cf507173a 472 #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
emilmont 77:869cf507173a 473
emilmont 77:869cf507173a 474 #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
emilmont 77:869cf507173a 475 #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
emilmont 77:869cf507173a 476 #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
emilmont 77:869cf507173a 477
emilmont 77:869cf507173a 478
emilmont 77:869cf507173a 479 /*@} */
emilmont 77:869cf507173a 480
emilmont 77:869cf507173a 481
emilmont 77:869cf507173a 482
emilmont 77:869cf507173a 483 /*******************************************************************************
emilmont 77:869cf507173a 484 * Hardware Abstraction Layer
emilmont 77:869cf507173a 485 Core Function Interface contains:
emilmont 77:869cf507173a 486 - Core NVIC Functions
emilmont 77:869cf507173a 487 - Core SysTick Functions
emilmont 77:869cf507173a 488 - Core Register Access Functions
emilmont 77:869cf507173a 489 ******************************************************************************/
emilmont 77:869cf507173a 490 /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
emilmont 77:869cf507173a 491 */
emilmont 77:869cf507173a 492
emilmont 77:869cf507173a 493
emilmont 77:869cf507173a 494
emilmont 77:869cf507173a 495 /* ########################## NVIC functions #################################### */
emilmont 77:869cf507173a 496 /** \ingroup CMSIS_Core_FunctionInterface
emilmont 77:869cf507173a 497 \defgroup CMSIS_Core_NVICFunctions NVIC Functions
emilmont 77:869cf507173a 498 \brief Functions that manage interrupts and exceptions via the NVIC.
emilmont 77:869cf507173a 499 @{
emilmont 77:869cf507173a 500 */
emilmont 77:869cf507173a 501
emilmont 77:869cf507173a 502 /* Interrupt Priorities are WORD accessible only under ARMv6M */
emilmont 77:869cf507173a 503 /* The following MACROS handle generation of the register offset and byte masks */
emilmont 77:869cf507173a 504 #define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 )
emilmont 77:869cf507173a 505 #define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )
emilmont 77:869cf507173a 506 #define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) )
emilmont 77:869cf507173a 507
emilmont 77:869cf507173a 508
emilmont 77:869cf507173a 509 /** \brief Enable External Interrupt
emilmont 77:869cf507173a 510
emilmont 77:869cf507173a 511 The function enables a device-specific interrupt in the NVIC interrupt controller.
emilmont 77:869cf507173a 512
emilmont 77:869cf507173a 513 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 77:869cf507173a 514 */
emilmont 77:869cf507173a 515 __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
emilmont 77:869cf507173a 516 {
emilmont 77:869cf507173a 517 NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 77:869cf507173a 518 }
emilmont 77:869cf507173a 519
emilmont 77:869cf507173a 520
emilmont 77:869cf507173a 521 /** \brief Disable External Interrupt
emilmont 77:869cf507173a 522
emilmont 77:869cf507173a 523 The function disables a device-specific interrupt in the NVIC interrupt controller.
emilmont 77:869cf507173a 524
emilmont 77:869cf507173a 525 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 77:869cf507173a 526 */
emilmont 77:869cf507173a 527 __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
emilmont 77:869cf507173a 528 {
emilmont 77:869cf507173a 529 NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 77:869cf507173a 530 }
emilmont 77:869cf507173a 531
emilmont 77:869cf507173a 532
emilmont 77:869cf507173a 533 /** \brief Get Pending Interrupt
emilmont 77:869cf507173a 534
emilmont 77:869cf507173a 535 The function reads the pending register in the NVIC and returns the pending bit
emilmont 77:869cf507173a 536 for the specified interrupt.
emilmont 77:869cf507173a 537
emilmont 77:869cf507173a 538 \param [in] IRQn Interrupt number.
emilmont 77:869cf507173a 539
emilmont 77:869cf507173a 540 \return 0 Interrupt status is not pending.
emilmont 77:869cf507173a 541 \return 1 Interrupt status is pending.
emilmont 77:869cf507173a 542 */
emilmont 77:869cf507173a 543 __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
emilmont 77:869cf507173a 544 {
emilmont 77:869cf507173a 545 return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
emilmont 77:869cf507173a 546 }
emilmont 77:869cf507173a 547
emilmont 77:869cf507173a 548
emilmont 77:869cf507173a 549 /** \brief Set Pending Interrupt
emilmont 77:869cf507173a 550
emilmont 77:869cf507173a 551 The function sets the pending bit of an external interrupt.
emilmont 77:869cf507173a 552
emilmont 77:869cf507173a 553 \param [in] IRQn Interrupt number. Value cannot be negative.
emilmont 77:869cf507173a 554 */
emilmont 77:869cf507173a 555 __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
emilmont 77:869cf507173a 556 {
emilmont 77:869cf507173a 557 NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 77:869cf507173a 558 }
emilmont 77:869cf507173a 559
emilmont 77:869cf507173a 560
emilmont 77:869cf507173a 561 /** \brief Clear Pending Interrupt
emilmont 77:869cf507173a 562
emilmont 77:869cf507173a 563 The function clears the pending bit of an external interrupt.
emilmont 77:869cf507173a 564
emilmont 77:869cf507173a 565 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 77:869cf507173a 566 */
emilmont 77:869cf507173a 567 __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
emilmont 77:869cf507173a 568 {
emilmont 77:869cf507173a 569 NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */
emilmont 77:869cf507173a 570 }
emilmont 77:869cf507173a 571
emilmont 77:869cf507173a 572
emilmont 77:869cf507173a 573 /** \brief Set Interrupt Priority
emilmont 77:869cf507173a 574
emilmont 77:869cf507173a 575 The function sets the priority of an interrupt.
emilmont 77:869cf507173a 576
emilmont 77:869cf507173a 577 \note The priority cannot be set for every core interrupt.
emilmont 77:869cf507173a 578
emilmont 77:869cf507173a 579 \param [in] IRQn Interrupt number.
emilmont 77:869cf507173a 580 \param [in] priority Priority to set.
emilmont 77:869cf507173a 581 */
emilmont 77:869cf507173a 582 __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
emilmont 77:869cf507173a 583 {
emilmont 77:869cf507173a 584 if(IRQn < 0) {
emilmont 77:869cf507173a 585 SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
emilmont 77:869cf507173a 586 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
emilmont 77:869cf507173a 587 else {
emilmont 77:869cf507173a 588 NVIC->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
emilmont 77:869cf507173a 589 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
emilmont 77:869cf507173a 590 }
emilmont 77:869cf507173a 591
emilmont 77:869cf507173a 592
emilmont 77:869cf507173a 593 /** \brief Get Interrupt Priority
emilmont 77:869cf507173a 594
emilmont 77:869cf507173a 595 The function reads the priority of an interrupt. The interrupt
emilmont 77:869cf507173a 596 number can be positive to specify an external (device specific)
emilmont 77:869cf507173a 597 interrupt, or negative to specify an internal (core) interrupt.
emilmont 77:869cf507173a 598
emilmont 77:869cf507173a 599
emilmont 77:869cf507173a 600 \param [in] IRQn Interrupt number.
emilmont 77:869cf507173a 601 \return Interrupt Priority. Value is aligned automatically to the implemented
emilmont 77:869cf507173a 602 priority bits of the microcontroller.
emilmont 77:869cf507173a 603 */
emilmont 77:869cf507173a 604 __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn)
emilmont 77:869cf507173a 605 {
emilmont 77:869cf507173a 606
emilmont 77:869cf507173a 607 if(IRQn < 0) {
emilmont 77:869cf507173a 608 return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */
emilmont 77:869cf507173a 609 else {
emilmont 77:869cf507173a 610 return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */
emilmont 77:869cf507173a 611 }
emilmont 77:869cf507173a 612
emilmont 77:869cf507173a 613
emilmont 77:869cf507173a 614 /** \brief System Reset
emilmont 77:869cf507173a 615
emilmont 77:869cf507173a 616 The function initiates a system reset request to reset the MCU.
emilmont 77:869cf507173a 617 */
emilmont 77:869cf507173a 618 __STATIC_INLINE void NVIC_SystemReset(void)
emilmont 77:869cf507173a 619 {
emilmont 77:869cf507173a 620 __DSB(); /* Ensure all outstanding memory accesses included
emilmont 77:869cf507173a 621 buffered write are completed before reset */
emilmont 77:869cf507173a 622 SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) |
emilmont 77:869cf507173a 623 SCB_AIRCR_SYSRESETREQ_Msk);
emilmont 77:869cf507173a 624 __DSB(); /* Ensure completion of memory access */
emilmont 77:869cf507173a 625 while(1); /* wait until reset */
emilmont 77:869cf507173a 626 }
emilmont 77:869cf507173a 627
emilmont 77:869cf507173a 628 /*@} end of CMSIS_Core_NVICFunctions */
emilmont 77:869cf507173a 629
emilmont 77:869cf507173a 630
emilmont 77:869cf507173a 631
emilmont 77:869cf507173a 632 /* ################################## SysTick function ############################################ */
emilmont 77:869cf507173a 633 /** \ingroup CMSIS_Core_FunctionInterface
emilmont 77:869cf507173a 634 \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
emilmont 77:869cf507173a 635 \brief Functions that configure the System.
emilmont 77:869cf507173a 636 @{
emilmont 77:869cf507173a 637 */
emilmont 77:869cf507173a 638
emilmont 77:869cf507173a 639 #if (__Vendor_SysTickConfig == 0)
emilmont 77:869cf507173a 640
emilmont 77:869cf507173a 641 /** \brief System Tick Configuration
emilmont 77:869cf507173a 642
emilmont 77:869cf507173a 643 The function initializes the System Timer and its interrupt, and starts the System Tick Timer.
emilmont 77:869cf507173a 644 Counter is in free running mode to generate periodic interrupts.
emilmont 77:869cf507173a 645
emilmont 77:869cf507173a 646 \param [in] ticks Number of ticks between two interrupts.
emilmont 77:869cf507173a 647
emilmont 77:869cf507173a 648 \return 0 Function succeeded.
emilmont 77:869cf507173a 649 \return 1 Function failed.
emilmont 77:869cf507173a 650
emilmont 77:869cf507173a 651 \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
emilmont 77:869cf507173a 652 function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
emilmont 77:869cf507173a 653 must contain a vendor-specific implementation of this function.
emilmont 77:869cf507173a 654
emilmont 77:869cf507173a 655 */
emilmont 77:869cf507173a 656 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
emilmont 77:869cf507173a 657 {
emilmont 77:869cf507173a 658 if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
emilmont 77:869cf507173a 659
emilmont 77:869cf507173a 660 SysTick->LOAD = ticks - 1; /* set reload register */
emilmont 77:869cf507173a 661 NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
emilmont 77:869cf507173a 662 SysTick->VAL = 0; /* Load the SysTick Counter Value */
emilmont 77:869cf507173a 663 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
emilmont 77:869cf507173a 664 SysTick_CTRL_TICKINT_Msk |
emilmont 77:869cf507173a 665 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
emilmont 77:869cf507173a 666 return (0); /* Function successful */
emilmont 77:869cf507173a 667 }
emilmont 77:869cf507173a 668
emilmont 77:869cf507173a 669 #endif
emilmont 77:869cf507173a 670
emilmont 77:869cf507173a 671 /*@} end of CMSIS_Core_SysTickFunctions */
emilmont 77:869cf507173a 672
emilmont 77:869cf507173a 673
emilmont 77:869cf507173a 674
emilmont 77:869cf507173a 675
emilmont 77:869cf507173a 676 #endif /* __CORE_CM0_H_DEPENDANT */
emilmont 77:869cf507173a 677
emilmont 77:869cf507173a 678 #endif /* __CMSIS_GENERIC */
emilmont 77:869cf507173a 679
emilmont 77:869cf507173a 680 #ifdef __cplusplus
emilmont 77:869cf507173a 681 }
emilmont 77:869cf507173a 682 #endif