lzbp li / mbed-src

Fork of mbed-src by mbed official

Committer:
emilmont
Date:
Fri Jun 14 17:49:17 2013 +0100
Revision:
10:3bc89ef62ce7
Unify mbed library sources

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emilmont 10:3bc89ef62ce7 1 /**************************************************************************//**
emilmont 10:3bc89ef62ce7 2 * @file core_cm0.h
emilmont 10:3bc89ef62ce7 3 * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
emilmont 10:3bc89ef62ce7 4 * @version V3.02
emilmont 10:3bc89ef62ce7 5 * @date 05. November 2012
emilmont 10:3bc89ef62ce7 6 *
emilmont 10:3bc89ef62ce7 7 * @note
emilmont 10:3bc89ef62ce7 8 * Copyright (C) 2009-2012 ARM Limited. All rights reserved.
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * @par
emilmont 10:3bc89ef62ce7 11 * ARM Limited (ARM) is supplying this software for use with Cortex-M
emilmont 10:3bc89ef62ce7 12 * processor based microcontrollers. This file can be freely distributed
emilmont 10:3bc89ef62ce7 13 * within development tools that are supporting such ARM based processors.
emilmont 10:3bc89ef62ce7 14 *
emilmont 10:3bc89ef62ce7 15 * @par
emilmont 10:3bc89ef62ce7 16 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
emilmont 10:3bc89ef62ce7 17 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
emilmont 10:3bc89ef62ce7 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
emilmont 10:3bc89ef62ce7 19 * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
emilmont 10:3bc89ef62ce7 20 * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
emilmont 10:3bc89ef62ce7 21 *
emilmont 10:3bc89ef62ce7 22 ******************************************************************************/
emilmont 10:3bc89ef62ce7 23 #if defined ( __ICCARM__ )
emilmont 10:3bc89ef62ce7 24 #pragma system_include /* treat file as system include file for MISRA check */
emilmont 10:3bc89ef62ce7 25 #endif
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 #ifdef __cplusplus
emilmont 10:3bc89ef62ce7 28 extern "C" {
emilmont 10:3bc89ef62ce7 29 #endif
emilmont 10:3bc89ef62ce7 30
emilmont 10:3bc89ef62ce7 31 #ifndef __CORE_CM0_H_GENERIC
emilmont 10:3bc89ef62ce7 32 #define __CORE_CM0_H_GENERIC
emilmont 10:3bc89ef62ce7 33
emilmont 10:3bc89ef62ce7 34 /** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
emilmont 10:3bc89ef62ce7 35 CMSIS violates the following MISRA-C:2004 rules:
emilmont 10:3bc89ef62ce7 36
emilmont 10:3bc89ef62ce7 37 \li Required Rule 8.5, object/function definition in header file.<br>
emilmont 10:3bc89ef62ce7 38 Function definitions in header files are used to allow 'inlining'.
emilmont 10:3bc89ef62ce7 39
emilmont 10:3bc89ef62ce7 40 \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
emilmont 10:3bc89ef62ce7 41 Unions are used for effective representation of core registers.
emilmont 10:3bc89ef62ce7 42
emilmont 10:3bc89ef62ce7 43 \li Advisory Rule 19.7, Function-like macro defined.<br>
emilmont 10:3bc89ef62ce7 44 Function-like macros are used to allow more efficient code.
emilmont 10:3bc89ef62ce7 45 */
emilmont 10:3bc89ef62ce7 46
emilmont 10:3bc89ef62ce7 47
emilmont 10:3bc89ef62ce7 48 /*******************************************************************************
emilmont 10:3bc89ef62ce7 49 * CMSIS definitions
emilmont 10:3bc89ef62ce7 50 ******************************************************************************/
emilmont 10:3bc89ef62ce7 51 /** \ingroup Cortex_M0
emilmont 10:3bc89ef62ce7 52 @{
emilmont 10:3bc89ef62ce7 53 */
emilmont 10:3bc89ef62ce7 54
emilmont 10:3bc89ef62ce7 55 /* CMSIS CM0 definitions */
emilmont 10:3bc89ef62ce7 56 #define __CM0_CMSIS_VERSION_MAIN (0x03) /*!< [31:16] CMSIS HAL main version */
emilmont 10:3bc89ef62ce7 57 #define __CM0_CMSIS_VERSION_SUB (0x01) /*!< [15:0] CMSIS HAL sub version */
emilmont 10:3bc89ef62ce7 58 #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | \
emilmont 10:3bc89ef62ce7 59 __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */
emilmont 10:3bc89ef62ce7 60
emilmont 10:3bc89ef62ce7 61 #define __CORTEX_M (0x00) /*!< Cortex-M Core */
emilmont 10:3bc89ef62ce7 62
emilmont 10:3bc89ef62ce7 63
emilmont 10:3bc89ef62ce7 64 #if defined ( __CC_ARM )
emilmont 10:3bc89ef62ce7 65 #define __ASM __asm /*!< asm keyword for ARM Compiler */
emilmont 10:3bc89ef62ce7 66 #define __INLINE __inline /*!< inline keyword for ARM Compiler */
emilmont 10:3bc89ef62ce7 67 #define __STATIC_INLINE static __inline
emilmont 10:3bc89ef62ce7 68
emilmont 10:3bc89ef62ce7 69 #elif defined ( __ICCARM__ )
emilmont 10:3bc89ef62ce7 70 #define __ASM __asm /*!< asm keyword for IAR Compiler */
emilmont 10:3bc89ef62ce7 71 #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
emilmont 10:3bc89ef62ce7 72 #define __STATIC_INLINE static inline
emilmont 10:3bc89ef62ce7 73
emilmont 10:3bc89ef62ce7 74 #elif defined ( __GNUC__ )
emilmont 10:3bc89ef62ce7 75 #define __ASM __asm /*!< asm keyword for GNU Compiler */
emilmont 10:3bc89ef62ce7 76 #define __INLINE inline /*!< inline keyword for GNU Compiler */
emilmont 10:3bc89ef62ce7 77 #define __STATIC_INLINE static inline
emilmont 10:3bc89ef62ce7 78
emilmont 10:3bc89ef62ce7 79 #elif defined ( __TASKING__ )
emilmont 10:3bc89ef62ce7 80 #define __ASM __asm /*!< asm keyword for TASKING Compiler */
emilmont 10:3bc89ef62ce7 81 #define __INLINE inline /*!< inline keyword for TASKING Compiler */
emilmont 10:3bc89ef62ce7 82 #define __STATIC_INLINE static inline
emilmont 10:3bc89ef62ce7 83
emilmont 10:3bc89ef62ce7 84 #endif
emilmont 10:3bc89ef62ce7 85
emilmont 10:3bc89ef62ce7 86 /** __FPU_USED indicates whether an FPU is used or not. This core does not support an FPU at all
emilmont 10:3bc89ef62ce7 87 */
emilmont 10:3bc89ef62ce7 88 #define __FPU_USED 0
emilmont 10:3bc89ef62ce7 89
emilmont 10:3bc89ef62ce7 90 #if defined ( __CC_ARM )
emilmont 10:3bc89ef62ce7 91 #if defined __TARGET_FPU_VFP
emilmont 10:3bc89ef62ce7 92 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 10:3bc89ef62ce7 93 #endif
emilmont 10:3bc89ef62ce7 94
emilmont 10:3bc89ef62ce7 95 #elif defined ( __ICCARM__ )
emilmont 10:3bc89ef62ce7 96 #if defined __ARMVFP__
emilmont 10:3bc89ef62ce7 97 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 10:3bc89ef62ce7 98 #endif
emilmont 10:3bc89ef62ce7 99
emilmont 10:3bc89ef62ce7 100 #elif defined ( __GNUC__ )
emilmont 10:3bc89ef62ce7 101 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
emilmont 10:3bc89ef62ce7 102 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 10:3bc89ef62ce7 103 #endif
emilmont 10:3bc89ef62ce7 104
emilmont 10:3bc89ef62ce7 105 #elif defined ( __TASKING__ )
emilmont 10:3bc89ef62ce7 106 #if defined __FPU_VFP__
emilmont 10:3bc89ef62ce7 107 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
emilmont 10:3bc89ef62ce7 108 #endif
emilmont 10:3bc89ef62ce7 109 #endif
emilmont 10:3bc89ef62ce7 110
emilmont 10:3bc89ef62ce7 111 #include <stdint.h> /* standard types definitions */
emilmont 10:3bc89ef62ce7 112 #include <core_cmInstr.h> /* Core Instruction Access */
emilmont 10:3bc89ef62ce7 113 #include <core_cmFunc.h> /* Core Function Access */
emilmont 10:3bc89ef62ce7 114
emilmont 10:3bc89ef62ce7 115 #endif /* __CORE_CM0_H_GENERIC */
emilmont 10:3bc89ef62ce7 116
emilmont 10:3bc89ef62ce7 117 #ifndef __CMSIS_GENERIC
emilmont 10:3bc89ef62ce7 118
emilmont 10:3bc89ef62ce7 119 #ifndef __CORE_CM0_H_DEPENDANT
emilmont 10:3bc89ef62ce7 120 #define __CORE_CM0_H_DEPENDANT
emilmont 10:3bc89ef62ce7 121
emilmont 10:3bc89ef62ce7 122 /* check device defines and use defaults */
emilmont 10:3bc89ef62ce7 123 #if defined __CHECK_DEVICE_DEFINES
emilmont 10:3bc89ef62ce7 124 #ifndef __CM0_REV
emilmont 10:3bc89ef62ce7 125 #define __CM0_REV 0x0000
emilmont 10:3bc89ef62ce7 126 #warning "__CM0_REV not defined in device header file; using default!"
emilmont 10:3bc89ef62ce7 127 #endif
emilmont 10:3bc89ef62ce7 128
emilmont 10:3bc89ef62ce7 129 #ifndef __NVIC_PRIO_BITS
emilmont 10:3bc89ef62ce7 130 #define __NVIC_PRIO_BITS 2
emilmont 10:3bc89ef62ce7 131 #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
emilmont 10:3bc89ef62ce7 132 #endif
emilmont 10:3bc89ef62ce7 133
emilmont 10:3bc89ef62ce7 134 #ifndef __Vendor_SysTickConfig
emilmont 10:3bc89ef62ce7 135 #define __Vendor_SysTickConfig 0
emilmont 10:3bc89ef62ce7 136 #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
emilmont 10:3bc89ef62ce7 137 #endif
emilmont 10:3bc89ef62ce7 138 #endif
emilmont 10:3bc89ef62ce7 139
emilmont 10:3bc89ef62ce7 140 /* IO definitions (access restrictions to peripheral registers) */
emilmont 10:3bc89ef62ce7 141 /**
emilmont 10:3bc89ef62ce7 142 \defgroup CMSIS_glob_defs CMSIS Global Defines
emilmont 10:3bc89ef62ce7 143
emilmont 10:3bc89ef62ce7 144 <strong>IO Type Qualifiers</strong> are used
emilmont 10:3bc89ef62ce7 145 \li to specify the access to peripheral variables.
emilmont 10:3bc89ef62ce7 146 \li for automatic generation of peripheral register debug information.
emilmont 10:3bc89ef62ce7 147 */
emilmont 10:3bc89ef62ce7 148 #ifdef __cplusplus
emilmont 10:3bc89ef62ce7 149 #define __I volatile /*!< Defines 'read only' permissions */
emilmont 10:3bc89ef62ce7 150 #else
emilmont 10:3bc89ef62ce7 151 #define __I volatile const /*!< Defines 'read only' permissions */
emilmont 10:3bc89ef62ce7 152 #endif
emilmont 10:3bc89ef62ce7 153 #define __O volatile /*!< Defines 'write only' permissions */
emilmont 10:3bc89ef62ce7 154 #define __IO volatile /*!< Defines 'read / write' permissions */
emilmont 10:3bc89ef62ce7 155
emilmont 10:3bc89ef62ce7 156 /*@} end of group Cortex_M0 */
emilmont 10:3bc89ef62ce7 157
emilmont 10:3bc89ef62ce7 158
emilmont 10:3bc89ef62ce7 159
emilmont 10:3bc89ef62ce7 160 /*******************************************************************************
emilmont 10:3bc89ef62ce7 161 * Register Abstraction
emilmont 10:3bc89ef62ce7 162 Core Register contain:
emilmont 10:3bc89ef62ce7 163 - Core Register
emilmont 10:3bc89ef62ce7 164 - Core NVIC Register
emilmont 10:3bc89ef62ce7 165 - Core SCB Register
emilmont 10:3bc89ef62ce7 166 - Core SysTick Register
emilmont 10:3bc89ef62ce7 167 ******************************************************************************/
emilmont 10:3bc89ef62ce7 168 /** \defgroup CMSIS_core_register Defines and Type Definitions
emilmont 10:3bc89ef62ce7 169 \brief Type definitions and defines for Cortex-M processor based devices.
emilmont 10:3bc89ef62ce7 170 */
emilmont 10:3bc89ef62ce7 171
emilmont 10:3bc89ef62ce7 172 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 173 \defgroup CMSIS_CORE Status and Control Registers
emilmont 10:3bc89ef62ce7 174 \brief Core Register type definitions.
emilmont 10:3bc89ef62ce7 175 @{
emilmont 10:3bc89ef62ce7 176 */
emilmont 10:3bc89ef62ce7 177
emilmont 10:3bc89ef62ce7 178 /** \brief Union type to access the Application Program Status Register (APSR).
emilmont 10:3bc89ef62ce7 179 */
emilmont 10:3bc89ef62ce7 180 typedef union
emilmont 10:3bc89ef62ce7 181 {
emilmont 10:3bc89ef62ce7 182 struct
emilmont 10:3bc89ef62ce7 183 {
emilmont 10:3bc89ef62ce7 184 #if (__CORTEX_M != 0x04)
emilmont 10:3bc89ef62ce7 185 uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */
emilmont 10:3bc89ef62ce7 186 #else
emilmont 10:3bc89ef62ce7 187 uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */
emilmont 10:3bc89ef62ce7 188 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
emilmont 10:3bc89ef62ce7 189 uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */
emilmont 10:3bc89ef62ce7 190 #endif
emilmont 10:3bc89ef62ce7 191 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
emilmont 10:3bc89ef62ce7 192 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
emilmont 10:3bc89ef62ce7 193 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
emilmont 10:3bc89ef62ce7 194 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
emilmont 10:3bc89ef62ce7 195 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
emilmont 10:3bc89ef62ce7 196 } b; /*!< Structure used for bit access */
emilmont 10:3bc89ef62ce7 197 uint32_t w; /*!< Type used for word access */
emilmont 10:3bc89ef62ce7 198 } APSR_Type;
emilmont 10:3bc89ef62ce7 199
emilmont 10:3bc89ef62ce7 200
emilmont 10:3bc89ef62ce7 201 /** \brief Union type to access the Interrupt Program Status Register (IPSR).
emilmont 10:3bc89ef62ce7 202 */
emilmont 10:3bc89ef62ce7 203 typedef union
emilmont 10:3bc89ef62ce7 204 {
emilmont 10:3bc89ef62ce7 205 struct
emilmont 10:3bc89ef62ce7 206 {
emilmont 10:3bc89ef62ce7 207 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
emilmont 10:3bc89ef62ce7 208 uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
emilmont 10:3bc89ef62ce7 209 } b; /*!< Structure used for bit access */
emilmont 10:3bc89ef62ce7 210 uint32_t w; /*!< Type used for word access */
emilmont 10:3bc89ef62ce7 211 } IPSR_Type;
emilmont 10:3bc89ef62ce7 212
emilmont 10:3bc89ef62ce7 213
emilmont 10:3bc89ef62ce7 214 /** \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
emilmont 10:3bc89ef62ce7 215 */
emilmont 10:3bc89ef62ce7 216 typedef union
emilmont 10:3bc89ef62ce7 217 {
emilmont 10:3bc89ef62ce7 218 struct
emilmont 10:3bc89ef62ce7 219 {
emilmont 10:3bc89ef62ce7 220 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
emilmont 10:3bc89ef62ce7 221 #if (__CORTEX_M != 0x04)
emilmont 10:3bc89ef62ce7 222 uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
emilmont 10:3bc89ef62ce7 223 #else
emilmont 10:3bc89ef62ce7 224 uint32_t _reserved0:7; /*!< bit: 9..15 Reserved */
emilmont 10:3bc89ef62ce7 225 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
emilmont 10:3bc89ef62ce7 226 uint32_t _reserved1:4; /*!< bit: 20..23 Reserved */
emilmont 10:3bc89ef62ce7 227 #endif
emilmont 10:3bc89ef62ce7 228 uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
emilmont 10:3bc89ef62ce7 229 uint32_t IT:2; /*!< bit: 25..26 saved IT state (read 0) */
emilmont 10:3bc89ef62ce7 230 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
emilmont 10:3bc89ef62ce7 231 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
emilmont 10:3bc89ef62ce7 232 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
emilmont 10:3bc89ef62ce7 233 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
emilmont 10:3bc89ef62ce7 234 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
emilmont 10:3bc89ef62ce7 235 } b; /*!< Structure used for bit access */
emilmont 10:3bc89ef62ce7 236 uint32_t w; /*!< Type used for word access */
emilmont 10:3bc89ef62ce7 237 } xPSR_Type;
emilmont 10:3bc89ef62ce7 238
emilmont 10:3bc89ef62ce7 239
emilmont 10:3bc89ef62ce7 240 /** \brief Union type to access the Control Registers (CONTROL).
emilmont 10:3bc89ef62ce7 241 */
emilmont 10:3bc89ef62ce7 242 typedef union
emilmont 10:3bc89ef62ce7 243 {
emilmont 10:3bc89ef62ce7 244 struct
emilmont 10:3bc89ef62ce7 245 {
emilmont 10:3bc89ef62ce7 246 uint32_t nPRIV:1; /*!< bit: 0 Execution privilege in Thread mode */
emilmont 10:3bc89ef62ce7 247 uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
emilmont 10:3bc89ef62ce7 248 uint32_t FPCA:1; /*!< bit: 2 FP extension active flag */
emilmont 10:3bc89ef62ce7 249 uint32_t _reserved0:29; /*!< bit: 3..31 Reserved */
emilmont 10:3bc89ef62ce7 250 } b; /*!< Structure used for bit access */
emilmont 10:3bc89ef62ce7 251 uint32_t w; /*!< Type used for word access */
emilmont 10:3bc89ef62ce7 252 } CONTROL_Type;
emilmont 10:3bc89ef62ce7 253
emilmont 10:3bc89ef62ce7 254 /*@} end of group CMSIS_CORE */
emilmont 10:3bc89ef62ce7 255
emilmont 10:3bc89ef62ce7 256
emilmont 10:3bc89ef62ce7 257 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 258 \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
emilmont 10:3bc89ef62ce7 259 \brief Type definitions for the NVIC Registers
emilmont 10:3bc89ef62ce7 260 @{
emilmont 10:3bc89ef62ce7 261 */
emilmont 10:3bc89ef62ce7 262
emilmont 10:3bc89ef62ce7 263 /** \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
emilmont 10:3bc89ef62ce7 264 */
emilmont 10:3bc89ef62ce7 265 typedef struct
emilmont 10:3bc89ef62ce7 266 {
emilmont 10:3bc89ef62ce7 267 __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
emilmont 10:3bc89ef62ce7 268 uint32_t RESERVED0[31];
emilmont 10:3bc89ef62ce7 269 __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
emilmont 10:3bc89ef62ce7 270 uint32_t RSERVED1[31];
emilmont 10:3bc89ef62ce7 271 __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
emilmont 10:3bc89ef62ce7 272 uint32_t RESERVED2[31];
emilmont 10:3bc89ef62ce7 273 __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
emilmont 10:3bc89ef62ce7 274 uint32_t RESERVED3[31];
emilmont 10:3bc89ef62ce7 275 uint32_t RESERVED4[64];
emilmont 10:3bc89ef62ce7 276 __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
emilmont 10:3bc89ef62ce7 277 } NVIC_Type;
emilmont 10:3bc89ef62ce7 278
emilmont 10:3bc89ef62ce7 279 /*@} end of group CMSIS_NVIC */
emilmont 10:3bc89ef62ce7 280
emilmont 10:3bc89ef62ce7 281
emilmont 10:3bc89ef62ce7 282 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 283 \defgroup CMSIS_SCB System Control Block (SCB)
emilmont 10:3bc89ef62ce7 284 \brief Type definitions for the System Control Block Registers
emilmont 10:3bc89ef62ce7 285 @{
emilmont 10:3bc89ef62ce7 286 */
emilmont 10:3bc89ef62ce7 287
emilmont 10:3bc89ef62ce7 288 /** \brief Structure type to access the System Control Block (SCB).
emilmont 10:3bc89ef62ce7 289 */
emilmont 10:3bc89ef62ce7 290 typedef struct
emilmont 10:3bc89ef62ce7 291 {
emilmont 10:3bc89ef62ce7 292 __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
emilmont 10:3bc89ef62ce7 293 __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
emilmont 10:3bc89ef62ce7 294 uint32_t RESERVED0;
emilmont 10:3bc89ef62ce7 295 __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
emilmont 10:3bc89ef62ce7 296 __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
emilmont 10:3bc89ef62ce7 297 __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
emilmont 10:3bc89ef62ce7 298 uint32_t RESERVED1;
emilmont 10:3bc89ef62ce7 299 __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
emilmont 10:3bc89ef62ce7 300 __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
emilmont 10:3bc89ef62ce7 301 } SCB_Type;
emilmont 10:3bc89ef62ce7 302
emilmont 10:3bc89ef62ce7 303 /* SCB CPUID Register Definitions */
emilmont 10:3bc89ef62ce7 304 #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */
emilmont 10:3bc89ef62ce7 305 #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
emilmont 10:3bc89ef62ce7 306
emilmont 10:3bc89ef62ce7 307 #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */
emilmont 10:3bc89ef62ce7 308 #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
emilmont 10:3bc89ef62ce7 309
emilmont 10:3bc89ef62ce7 310 #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */
emilmont 10:3bc89ef62ce7 311 #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
emilmont 10:3bc89ef62ce7 312
emilmont 10:3bc89ef62ce7 313 #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */
emilmont 10:3bc89ef62ce7 314 #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
emilmont 10:3bc89ef62ce7 315
emilmont 10:3bc89ef62ce7 316 #define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */
emilmont 10:3bc89ef62ce7 317 #define SCB_CPUID_REVISION_Msk (0xFUL << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */
emilmont 10:3bc89ef62ce7 318
emilmont 10:3bc89ef62ce7 319 /* SCB Interrupt Control State Register Definitions */
emilmont 10:3bc89ef62ce7 320 #define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */
emilmont 10:3bc89ef62ce7 321 #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
emilmont 10:3bc89ef62ce7 322
emilmont 10:3bc89ef62ce7 323 #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */
emilmont 10:3bc89ef62ce7 324 #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
emilmont 10:3bc89ef62ce7 325
emilmont 10:3bc89ef62ce7 326 #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */
emilmont 10:3bc89ef62ce7 327 #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
emilmont 10:3bc89ef62ce7 328
emilmont 10:3bc89ef62ce7 329 #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */
emilmont 10:3bc89ef62ce7 330 #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
emilmont 10:3bc89ef62ce7 331
emilmont 10:3bc89ef62ce7 332 #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */
emilmont 10:3bc89ef62ce7 333 #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
emilmont 10:3bc89ef62ce7 334
emilmont 10:3bc89ef62ce7 335 #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */
emilmont 10:3bc89ef62ce7 336 #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
emilmont 10:3bc89ef62ce7 337
emilmont 10:3bc89ef62ce7 338 #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */
emilmont 10:3bc89ef62ce7 339 #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
emilmont 10:3bc89ef62ce7 340
emilmont 10:3bc89ef62ce7 341 #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */
emilmont 10:3bc89ef62ce7 342 #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
emilmont 10:3bc89ef62ce7 343
emilmont 10:3bc89ef62ce7 344 #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */
emilmont 10:3bc89ef62ce7 345 #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */
emilmont 10:3bc89ef62ce7 346
emilmont 10:3bc89ef62ce7 347 /* SCB Application Interrupt and Reset Control Register Definitions */
emilmont 10:3bc89ef62ce7 348 #define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */
emilmont 10:3bc89ef62ce7 349 #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
emilmont 10:3bc89ef62ce7 350
emilmont 10:3bc89ef62ce7 351 #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */
emilmont 10:3bc89ef62ce7 352 #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
emilmont 10:3bc89ef62ce7 353
emilmont 10:3bc89ef62ce7 354 #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */
emilmont 10:3bc89ef62ce7 355 #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
emilmont 10:3bc89ef62ce7 356
emilmont 10:3bc89ef62ce7 357 #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */
emilmont 10:3bc89ef62ce7 358 #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
emilmont 10:3bc89ef62ce7 359
emilmont 10:3bc89ef62ce7 360 #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */
emilmont 10:3bc89ef62ce7 361 #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
emilmont 10:3bc89ef62ce7 362
emilmont 10:3bc89ef62ce7 363 /* SCB System Control Register Definitions */
emilmont 10:3bc89ef62ce7 364 #define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */
emilmont 10:3bc89ef62ce7 365 #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
emilmont 10:3bc89ef62ce7 366
emilmont 10:3bc89ef62ce7 367 #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */
emilmont 10:3bc89ef62ce7 368 #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
emilmont 10:3bc89ef62ce7 369
emilmont 10:3bc89ef62ce7 370 #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */
emilmont 10:3bc89ef62ce7 371 #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
emilmont 10:3bc89ef62ce7 372
emilmont 10:3bc89ef62ce7 373 /* SCB Configuration Control Register Definitions */
emilmont 10:3bc89ef62ce7 374 #define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */
emilmont 10:3bc89ef62ce7 375 #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
emilmont 10:3bc89ef62ce7 376
emilmont 10:3bc89ef62ce7 377 #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */
emilmont 10:3bc89ef62ce7 378 #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
emilmont 10:3bc89ef62ce7 379
emilmont 10:3bc89ef62ce7 380 /* SCB System Handler Control and State Register Definitions */
emilmont 10:3bc89ef62ce7 381 #define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */
emilmont 10:3bc89ef62ce7 382 #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
emilmont 10:3bc89ef62ce7 383
emilmont 10:3bc89ef62ce7 384 /*@} end of group CMSIS_SCB */
emilmont 10:3bc89ef62ce7 385
emilmont 10:3bc89ef62ce7 386
emilmont 10:3bc89ef62ce7 387 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 388 \defgroup CMSIS_SysTick System Tick Timer (SysTick)
emilmont 10:3bc89ef62ce7 389 \brief Type definitions for the System Timer Registers.
emilmont 10:3bc89ef62ce7 390 @{
emilmont 10:3bc89ef62ce7 391 */
emilmont 10:3bc89ef62ce7 392
emilmont 10:3bc89ef62ce7 393 /** \brief Structure type to access the System Timer (SysTick).
emilmont 10:3bc89ef62ce7 394 */
emilmont 10:3bc89ef62ce7 395 typedef struct
emilmont 10:3bc89ef62ce7 396 {
emilmont 10:3bc89ef62ce7 397 __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
emilmont 10:3bc89ef62ce7 398 __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
emilmont 10:3bc89ef62ce7 399 __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
emilmont 10:3bc89ef62ce7 400 __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
emilmont 10:3bc89ef62ce7 401 } SysTick_Type;
emilmont 10:3bc89ef62ce7 402
emilmont 10:3bc89ef62ce7 403 /* SysTick Control / Status Register Definitions */
emilmont 10:3bc89ef62ce7 404 #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */
emilmont 10:3bc89ef62ce7 405 #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
emilmont 10:3bc89ef62ce7 406
emilmont 10:3bc89ef62ce7 407 #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */
emilmont 10:3bc89ef62ce7 408 #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
emilmont 10:3bc89ef62ce7 409
emilmont 10:3bc89ef62ce7 410 #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */
emilmont 10:3bc89ef62ce7 411 #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
emilmont 10:3bc89ef62ce7 412
emilmont 10:3bc89ef62ce7 413 #define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */
emilmont 10:3bc89ef62ce7 414 #define SysTick_CTRL_ENABLE_Msk (1UL << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */
emilmont 10:3bc89ef62ce7 415
emilmont 10:3bc89ef62ce7 416 /* SysTick Reload Register Definitions */
emilmont 10:3bc89ef62ce7 417 #define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */
emilmont 10:3bc89ef62ce7 418 #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */
emilmont 10:3bc89ef62ce7 419
emilmont 10:3bc89ef62ce7 420 /* SysTick Current Register Definitions */
emilmont 10:3bc89ef62ce7 421 #define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */
emilmont 10:3bc89ef62ce7 422 #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */
emilmont 10:3bc89ef62ce7 423
emilmont 10:3bc89ef62ce7 424 /* SysTick Calibration Register Definitions */
emilmont 10:3bc89ef62ce7 425 #define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */
emilmont 10:3bc89ef62ce7 426 #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
emilmont 10:3bc89ef62ce7 427
emilmont 10:3bc89ef62ce7 428 #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */
emilmont 10:3bc89ef62ce7 429 #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
emilmont 10:3bc89ef62ce7 430
emilmont 10:3bc89ef62ce7 431 #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */
emilmont 10:3bc89ef62ce7 432 #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */
emilmont 10:3bc89ef62ce7 433
emilmont 10:3bc89ef62ce7 434 /*@} end of group CMSIS_SysTick */
emilmont 10:3bc89ef62ce7 435
emilmont 10:3bc89ef62ce7 436
emilmont 10:3bc89ef62ce7 437 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 438 \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
emilmont 10:3bc89ef62ce7 439 \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR)
emilmont 10:3bc89ef62ce7 440 are only accessible over DAP and not via processor. Therefore
emilmont 10:3bc89ef62ce7 441 they are not covered by the Cortex-M0 header file.
emilmont 10:3bc89ef62ce7 442 @{
emilmont 10:3bc89ef62ce7 443 */
emilmont 10:3bc89ef62ce7 444 /*@} end of group CMSIS_CoreDebug */
emilmont 10:3bc89ef62ce7 445
emilmont 10:3bc89ef62ce7 446
emilmont 10:3bc89ef62ce7 447 /** \ingroup CMSIS_core_register
emilmont 10:3bc89ef62ce7 448 \defgroup CMSIS_core_base Core Definitions
emilmont 10:3bc89ef62ce7 449 \brief Definitions for base addresses, unions, and structures.
emilmont 10:3bc89ef62ce7 450 @{
emilmont 10:3bc89ef62ce7 451 */
emilmont 10:3bc89ef62ce7 452
emilmont 10:3bc89ef62ce7 453 /* Memory mapping of Cortex-M0 Hardware */
emilmont 10:3bc89ef62ce7 454 #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
emilmont 10:3bc89ef62ce7 455 #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
emilmont 10:3bc89ef62ce7 456 #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
emilmont 10:3bc89ef62ce7 457 #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
emilmont 10:3bc89ef62ce7 458
emilmont 10:3bc89ef62ce7 459 #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
emilmont 10:3bc89ef62ce7 460 #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
emilmont 10:3bc89ef62ce7 461 #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
emilmont 10:3bc89ef62ce7 462
emilmont 10:3bc89ef62ce7 463
emilmont 10:3bc89ef62ce7 464 /*@} */
emilmont 10:3bc89ef62ce7 465
emilmont 10:3bc89ef62ce7 466
emilmont 10:3bc89ef62ce7 467
emilmont 10:3bc89ef62ce7 468 /*******************************************************************************
emilmont 10:3bc89ef62ce7 469 * Hardware Abstraction Layer
emilmont 10:3bc89ef62ce7 470 Core Function Interface contains:
emilmont 10:3bc89ef62ce7 471 - Core NVIC Functions
emilmont 10:3bc89ef62ce7 472 - Core SysTick Functions
emilmont 10:3bc89ef62ce7 473 - Core Register Access Functions
emilmont 10:3bc89ef62ce7 474 ******************************************************************************/
emilmont 10:3bc89ef62ce7 475 /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
emilmont 10:3bc89ef62ce7 476 */
emilmont 10:3bc89ef62ce7 477
emilmont 10:3bc89ef62ce7 478
emilmont 10:3bc89ef62ce7 479
emilmont 10:3bc89ef62ce7 480 /* ########################## NVIC functions #################################### */
emilmont 10:3bc89ef62ce7 481 /** \ingroup CMSIS_Core_FunctionInterface
emilmont 10:3bc89ef62ce7 482 \defgroup CMSIS_Core_NVICFunctions NVIC Functions
emilmont 10:3bc89ef62ce7 483 \brief Functions that manage interrupts and exceptions via the NVIC.
emilmont 10:3bc89ef62ce7 484 @{
emilmont 10:3bc89ef62ce7 485 */
emilmont 10:3bc89ef62ce7 486
emilmont 10:3bc89ef62ce7 487 /* Interrupt Priorities are WORD accessible only under ARMv6M */
emilmont 10:3bc89ef62ce7 488 /* The following MACROS handle generation of the register offset and byte masks */
emilmont 10:3bc89ef62ce7 489 #define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 )
emilmont 10:3bc89ef62ce7 490 #define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )
emilmont 10:3bc89ef62ce7 491 #define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) )
emilmont 10:3bc89ef62ce7 492
emilmont 10:3bc89ef62ce7 493
emilmont 10:3bc89ef62ce7 494 /** \brief Enable External Interrupt
emilmont 10:3bc89ef62ce7 495
emilmont 10:3bc89ef62ce7 496 The function enables a device-specific interrupt in the NVIC interrupt controller.
emilmont 10:3bc89ef62ce7 497
emilmont 10:3bc89ef62ce7 498 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 10:3bc89ef62ce7 499 */
emilmont 10:3bc89ef62ce7 500 __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 501 {
emilmont 10:3bc89ef62ce7 502 NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 10:3bc89ef62ce7 503 }
emilmont 10:3bc89ef62ce7 504
emilmont 10:3bc89ef62ce7 505
emilmont 10:3bc89ef62ce7 506 /** \brief Disable External Interrupt
emilmont 10:3bc89ef62ce7 507
emilmont 10:3bc89ef62ce7 508 The function disables a device-specific interrupt in the NVIC interrupt controller.
emilmont 10:3bc89ef62ce7 509
emilmont 10:3bc89ef62ce7 510 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 10:3bc89ef62ce7 511 */
emilmont 10:3bc89ef62ce7 512 __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 513 {
emilmont 10:3bc89ef62ce7 514 NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 10:3bc89ef62ce7 515 }
emilmont 10:3bc89ef62ce7 516
emilmont 10:3bc89ef62ce7 517
emilmont 10:3bc89ef62ce7 518 /** \brief Get Pending Interrupt
emilmont 10:3bc89ef62ce7 519
emilmont 10:3bc89ef62ce7 520 The function reads the pending register in the NVIC and returns the pending bit
emilmont 10:3bc89ef62ce7 521 for the specified interrupt.
emilmont 10:3bc89ef62ce7 522
emilmont 10:3bc89ef62ce7 523 \param [in] IRQn Interrupt number.
emilmont 10:3bc89ef62ce7 524
emilmont 10:3bc89ef62ce7 525 \return 0 Interrupt status is not pending.
emilmont 10:3bc89ef62ce7 526 \return 1 Interrupt status is pending.
emilmont 10:3bc89ef62ce7 527 */
emilmont 10:3bc89ef62ce7 528 __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 529 {
emilmont 10:3bc89ef62ce7 530 return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
emilmont 10:3bc89ef62ce7 531 }
emilmont 10:3bc89ef62ce7 532
emilmont 10:3bc89ef62ce7 533
emilmont 10:3bc89ef62ce7 534 /** \brief Set Pending Interrupt
emilmont 10:3bc89ef62ce7 535
emilmont 10:3bc89ef62ce7 536 The function sets the pending bit of an external interrupt.
emilmont 10:3bc89ef62ce7 537
emilmont 10:3bc89ef62ce7 538 \param [in] IRQn Interrupt number. Value cannot be negative.
emilmont 10:3bc89ef62ce7 539 */
emilmont 10:3bc89ef62ce7 540 __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 541 {
emilmont 10:3bc89ef62ce7 542 NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
emilmont 10:3bc89ef62ce7 543 }
emilmont 10:3bc89ef62ce7 544
emilmont 10:3bc89ef62ce7 545
emilmont 10:3bc89ef62ce7 546 /** \brief Clear Pending Interrupt
emilmont 10:3bc89ef62ce7 547
emilmont 10:3bc89ef62ce7 548 The function clears the pending bit of an external interrupt.
emilmont 10:3bc89ef62ce7 549
emilmont 10:3bc89ef62ce7 550 \param [in] IRQn External interrupt number. Value cannot be negative.
emilmont 10:3bc89ef62ce7 551 */
emilmont 10:3bc89ef62ce7 552 __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 553 {
emilmont 10:3bc89ef62ce7 554 NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */
emilmont 10:3bc89ef62ce7 555 }
emilmont 10:3bc89ef62ce7 556
emilmont 10:3bc89ef62ce7 557
emilmont 10:3bc89ef62ce7 558 /** \brief Set Interrupt Priority
emilmont 10:3bc89ef62ce7 559
emilmont 10:3bc89ef62ce7 560 The function sets the priority of an interrupt.
emilmont 10:3bc89ef62ce7 561
emilmont 10:3bc89ef62ce7 562 \note The priority cannot be set for every core interrupt.
emilmont 10:3bc89ef62ce7 563
emilmont 10:3bc89ef62ce7 564 \param [in] IRQn Interrupt number.
emilmont 10:3bc89ef62ce7 565 \param [in] priority Priority to set.
emilmont 10:3bc89ef62ce7 566 */
emilmont 10:3bc89ef62ce7 567 __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
emilmont 10:3bc89ef62ce7 568 {
emilmont 10:3bc89ef62ce7 569 if(IRQn < 0) {
emilmont 10:3bc89ef62ce7 570 SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
emilmont 10:3bc89ef62ce7 571 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
emilmont 10:3bc89ef62ce7 572 else {
emilmont 10:3bc89ef62ce7 573 NVIC->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
emilmont 10:3bc89ef62ce7 574 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
emilmont 10:3bc89ef62ce7 575 }
emilmont 10:3bc89ef62ce7 576
emilmont 10:3bc89ef62ce7 577
emilmont 10:3bc89ef62ce7 578 /** \brief Get Interrupt Priority
emilmont 10:3bc89ef62ce7 579
emilmont 10:3bc89ef62ce7 580 The function reads the priority of an interrupt. The interrupt
emilmont 10:3bc89ef62ce7 581 number can be positive to specify an external (device specific)
emilmont 10:3bc89ef62ce7 582 interrupt, or negative to specify an internal (core) interrupt.
emilmont 10:3bc89ef62ce7 583
emilmont 10:3bc89ef62ce7 584
emilmont 10:3bc89ef62ce7 585 \param [in] IRQn Interrupt number.
emilmont 10:3bc89ef62ce7 586 \return Interrupt Priority. Value is aligned automatically to the implemented
emilmont 10:3bc89ef62ce7 587 priority bits of the microcontroller.
emilmont 10:3bc89ef62ce7 588 */
emilmont 10:3bc89ef62ce7 589 __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn)
emilmont 10:3bc89ef62ce7 590 {
emilmont 10:3bc89ef62ce7 591
emilmont 10:3bc89ef62ce7 592 if(IRQn < 0) {
emilmont 10:3bc89ef62ce7 593 return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */
emilmont 10:3bc89ef62ce7 594 else {
emilmont 10:3bc89ef62ce7 595 return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */
emilmont 10:3bc89ef62ce7 596 }
emilmont 10:3bc89ef62ce7 597
emilmont 10:3bc89ef62ce7 598
emilmont 10:3bc89ef62ce7 599 /** \brief System Reset
emilmont 10:3bc89ef62ce7 600
emilmont 10:3bc89ef62ce7 601 The function initiates a system reset request to reset the MCU.
emilmont 10:3bc89ef62ce7 602 */
emilmont 10:3bc89ef62ce7 603 __STATIC_INLINE void NVIC_SystemReset(void)
emilmont 10:3bc89ef62ce7 604 {
emilmont 10:3bc89ef62ce7 605 __DSB(); /* Ensure all outstanding memory accesses included
emilmont 10:3bc89ef62ce7 606 buffered write are completed before reset */
emilmont 10:3bc89ef62ce7 607 SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) |
emilmont 10:3bc89ef62ce7 608 SCB_AIRCR_SYSRESETREQ_Msk);
emilmont 10:3bc89ef62ce7 609 __DSB(); /* Ensure completion of memory access */
emilmont 10:3bc89ef62ce7 610 while(1); /* wait until reset */
emilmont 10:3bc89ef62ce7 611 }
emilmont 10:3bc89ef62ce7 612
emilmont 10:3bc89ef62ce7 613 /*@} end of CMSIS_Core_NVICFunctions */
emilmont 10:3bc89ef62ce7 614
emilmont 10:3bc89ef62ce7 615
emilmont 10:3bc89ef62ce7 616
emilmont 10:3bc89ef62ce7 617 /* ################################## SysTick function ############################################ */
emilmont 10:3bc89ef62ce7 618 /** \ingroup CMSIS_Core_FunctionInterface
emilmont 10:3bc89ef62ce7 619 \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
emilmont 10:3bc89ef62ce7 620 \brief Functions that configure the System.
emilmont 10:3bc89ef62ce7 621 @{
emilmont 10:3bc89ef62ce7 622 */
emilmont 10:3bc89ef62ce7 623
emilmont 10:3bc89ef62ce7 624 #if (__Vendor_SysTickConfig == 0)
emilmont 10:3bc89ef62ce7 625
emilmont 10:3bc89ef62ce7 626 /** \brief System Tick Configuration
emilmont 10:3bc89ef62ce7 627
emilmont 10:3bc89ef62ce7 628 The function initializes the System Timer and its interrupt, and starts the System Tick Timer.
emilmont 10:3bc89ef62ce7 629 Counter is in free running mode to generate periodic interrupts.
emilmont 10:3bc89ef62ce7 630
emilmont 10:3bc89ef62ce7 631 \param [in] ticks Number of ticks between two interrupts.
emilmont 10:3bc89ef62ce7 632
emilmont 10:3bc89ef62ce7 633 \return 0 Function succeeded.
emilmont 10:3bc89ef62ce7 634 \return 1 Function failed.
emilmont 10:3bc89ef62ce7 635
emilmont 10:3bc89ef62ce7 636 \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
emilmont 10:3bc89ef62ce7 637 function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
emilmont 10:3bc89ef62ce7 638 must contain a vendor-specific implementation of this function.
emilmont 10:3bc89ef62ce7 639
emilmont 10:3bc89ef62ce7 640 */
emilmont 10:3bc89ef62ce7 641 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
emilmont 10:3bc89ef62ce7 642 {
emilmont 10:3bc89ef62ce7 643 if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
emilmont 10:3bc89ef62ce7 644
emilmont 10:3bc89ef62ce7 645 SysTick->LOAD = ticks - 1; /* set reload register */
emilmont 10:3bc89ef62ce7 646 NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
emilmont 10:3bc89ef62ce7 647 SysTick->VAL = 0; /* Load the SysTick Counter Value */
emilmont 10:3bc89ef62ce7 648 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
emilmont 10:3bc89ef62ce7 649 SysTick_CTRL_TICKINT_Msk |
emilmont 10:3bc89ef62ce7 650 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
emilmont 10:3bc89ef62ce7 651 return (0); /* Function successful */
emilmont 10:3bc89ef62ce7 652 }
emilmont 10:3bc89ef62ce7 653
emilmont 10:3bc89ef62ce7 654 #endif
emilmont 10:3bc89ef62ce7 655
emilmont 10:3bc89ef62ce7 656 /*@} end of CMSIS_Core_SysTickFunctions */
emilmont 10:3bc89ef62ce7 657
emilmont 10:3bc89ef62ce7 658
emilmont 10:3bc89ef62ce7 659
emilmont 10:3bc89ef62ce7 660
emilmont 10:3bc89ef62ce7 661 #endif /* __CORE_CM0_H_DEPENDANT */
emilmont 10:3bc89ef62ce7 662
emilmont 10:3bc89ef62ce7 663 #endif /* __CMSIS_GENERIC */
emilmont 10:3bc89ef62ce7 664
emilmont 10:3bc89ef62ce7 665 #ifdef __cplusplus
emilmont 10:3bc89ef62ce7 666 }
emilmont 10:3bc89ef62ce7 667 #endif