Sertel_Srinath Gopalan / TARGET_LPC1768_N

LPC1768

core_cm0.h@0:ae306d3f6076, 2014-11-19 (annotated)

Committer:
mrsoundhar
Date:
Wed Nov 19 05:50:22 2014 +0000
Revision:
0:ae306d3f6076
publish

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mrsoundhar 0:ae306d3f6076 1 /**************************************************************************//**
mrsoundhar 0:ae306d3f6076 2 * @file core_cm0.h
mrsoundhar 0:ae306d3f6076 3 * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
mrsoundhar 0:ae306d3f6076 4 * @version V3.20
mrsoundhar 0:ae306d3f6076 5 * @date 25. February 2013
mrsoundhar 0:ae306d3f6076 6 *
mrsoundhar 0:ae306d3f6076 7 * @note
mrsoundhar 0:ae306d3f6076 8 *
mrsoundhar 0:ae306d3f6076 9 ******************************************************************************/
mrsoundhar 0:ae306d3f6076 10 /* Copyright (c) 2009 - 2013 ARM LIMITED
mrsoundhar 0:ae306d3f6076 11
mrsoundhar 0:ae306d3f6076 12 All rights reserved.
mrsoundhar 0:ae306d3f6076 13 Redistribution and use in source and binary forms, with or without
mrsoundhar 0:ae306d3f6076 14 modification, are permitted provided that the following conditions are met:
mrsoundhar 0:ae306d3f6076 15 - Redistributions of source code must retain the above copyright
mrsoundhar 0:ae306d3f6076 16 notice, this list of conditions and the following disclaimer.
mrsoundhar 0:ae306d3f6076 17 - Redistributions in binary form must reproduce the above copyright
mrsoundhar 0:ae306d3f6076 18 notice, this list of conditions and the following disclaimer in the
mrsoundhar 0:ae306d3f6076 19 documentation and/or other materials provided with the distribution.
mrsoundhar 0:ae306d3f6076 20 - Neither the name of ARM nor the names of its contributors may be used
mrsoundhar 0:ae306d3f6076 21 to endorse or promote products derived from this software without
mrsoundhar 0:ae306d3f6076 22 specific prior written permission.
mrsoundhar 0:ae306d3f6076 23 *
mrsoundhar 0:ae306d3f6076 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mrsoundhar 0:ae306d3f6076 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mrsoundhar 0:ae306d3f6076 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mrsoundhar 0:ae306d3f6076 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mrsoundhar 0:ae306d3f6076 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mrsoundhar 0:ae306d3f6076 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mrsoundhar 0:ae306d3f6076 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mrsoundhar 0:ae306d3f6076 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mrsoundhar 0:ae306d3f6076 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mrsoundhar 0:ae306d3f6076 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mrsoundhar 0:ae306d3f6076 34 POSSIBILITY OF SUCH DAMAGE.
mrsoundhar 0:ae306d3f6076 35 ---------------------------------------------------------------------------*/
mrsoundhar 0:ae306d3f6076 36
mrsoundhar 0:ae306d3f6076 37
mrsoundhar 0:ae306d3f6076 38 #if defined ( __ICCARM__ )
mrsoundhar 0:ae306d3f6076 39 #pragma system_include /* treat file as system include file for MISRA check */
mrsoundhar 0:ae306d3f6076 40 #endif
mrsoundhar 0:ae306d3f6076 41
mrsoundhar 0:ae306d3f6076 42 #ifdef __cplusplus
mrsoundhar 0:ae306d3f6076 43 extern "C" {
mrsoundhar 0:ae306d3f6076 44 #endif
mrsoundhar 0:ae306d3f6076 45
mrsoundhar 0:ae306d3f6076 46 #ifndef __CORE_CM0_H_GENERIC
mrsoundhar 0:ae306d3f6076 47 #define __CORE_CM0_H_GENERIC
mrsoundhar 0:ae306d3f6076 48
mrsoundhar 0:ae306d3f6076 49 /** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
mrsoundhar 0:ae306d3f6076 50 CMSIS violates the following MISRA-C:2004 rules:
mrsoundhar 0:ae306d3f6076 51
mrsoundhar 0:ae306d3f6076 52 \li Required Rule 8.5, object/function definition in header file.<br>
mrsoundhar 0:ae306d3f6076 53 Function definitions in header files are used to allow 'inlining'.
mrsoundhar 0:ae306d3f6076 54
mrsoundhar 0:ae306d3f6076 55 \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
mrsoundhar 0:ae306d3f6076 56 Unions are used for effective representation of core registers.
mrsoundhar 0:ae306d3f6076 57
mrsoundhar 0:ae306d3f6076 58 \li Advisory Rule 19.7, Function-like macro defined.<br>
mrsoundhar 0:ae306d3f6076 59 Function-like macros are used to allow more efficient code.
mrsoundhar 0:ae306d3f6076 60 */
mrsoundhar 0:ae306d3f6076 61
mrsoundhar 0:ae306d3f6076 62
mrsoundhar 0:ae306d3f6076 63 /*******************************************************************************
mrsoundhar 0:ae306d3f6076 64 * CMSIS definitions
mrsoundhar 0:ae306d3f6076 65 ******************************************************************************/
mrsoundhar 0:ae306d3f6076 66 /** \ingroup Cortex_M0
mrsoundhar 0:ae306d3f6076 67 @{
mrsoundhar 0:ae306d3f6076 68 */
mrsoundhar 0:ae306d3f6076 69
mrsoundhar 0:ae306d3f6076 70 /* CMSIS CM0 definitions */
mrsoundhar 0:ae306d3f6076 71 #define __CM0_CMSIS_VERSION_MAIN (0x03) /*!< [31:16] CMSIS HAL main version */
mrsoundhar 0:ae306d3f6076 72 #define __CM0_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */
mrsoundhar 0:ae306d3f6076 73 #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | \
mrsoundhar 0:ae306d3f6076 74 __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */
mrsoundhar 0:ae306d3f6076 75
mrsoundhar 0:ae306d3f6076 76 #define __CORTEX_M (0x00) /*!< Cortex-M Core */
mrsoundhar 0:ae306d3f6076 77
mrsoundhar 0:ae306d3f6076 78
mrsoundhar 0:ae306d3f6076 79 #if defined ( __CC_ARM )
mrsoundhar 0:ae306d3f6076 80 #define __ASM __asm /*!< asm keyword for ARM Compiler */
mrsoundhar 0:ae306d3f6076 81 #define __INLINE __inline /*!< inline keyword for ARM Compiler */
mrsoundhar 0:ae306d3f6076 82 #define __STATIC_INLINE static __inline
mrsoundhar 0:ae306d3f6076 83
mrsoundhar 0:ae306d3f6076 84 #elif defined ( __ICCARM__ )
mrsoundhar 0:ae306d3f6076 85 #define __ASM __asm /*!< asm keyword for IAR Compiler */
mrsoundhar 0:ae306d3f6076 86 #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
mrsoundhar 0:ae306d3f6076 87 #define __STATIC_INLINE static inline
mrsoundhar 0:ae306d3f6076 88
mrsoundhar 0:ae306d3f6076 89 #elif defined ( __GNUC__ )
mrsoundhar 0:ae306d3f6076 90 #define __ASM __asm /*!< asm keyword for GNU Compiler */
mrsoundhar 0:ae306d3f6076 91 #define __INLINE inline /*!< inline keyword for GNU Compiler */
mrsoundhar 0:ae306d3f6076 92 #define __STATIC_INLINE static inline
mrsoundhar 0:ae306d3f6076 93
mrsoundhar 0:ae306d3f6076 94 #elif defined ( __TASKING__ )
mrsoundhar 0:ae306d3f6076 95 #define __ASM __asm /*!< asm keyword for TASKING Compiler */
mrsoundhar 0:ae306d3f6076 96 #define __INLINE inline /*!< inline keyword for TASKING Compiler */
mrsoundhar 0:ae306d3f6076 97 #define __STATIC_INLINE static inline
mrsoundhar 0:ae306d3f6076 98
mrsoundhar 0:ae306d3f6076 99 #endif
mrsoundhar 0:ae306d3f6076 100
mrsoundhar 0:ae306d3f6076 101 /** __FPU_USED indicates whether an FPU is used or not. This core does not support an FPU at all
mrsoundhar 0:ae306d3f6076 102 */
mrsoundhar 0:ae306d3f6076 103 #define __FPU_USED 0
mrsoundhar 0:ae306d3f6076 104
mrsoundhar 0:ae306d3f6076 105 #if defined ( __CC_ARM )
mrsoundhar 0:ae306d3f6076 106 #if defined __TARGET_FPU_VFP
mrsoundhar 0:ae306d3f6076 107 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
mrsoundhar 0:ae306d3f6076 108 #endif
mrsoundhar 0:ae306d3f6076 109
mrsoundhar 0:ae306d3f6076 110 #elif defined ( __ICCARM__ )
mrsoundhar 0:ae306d3f6076 111 #if defined __ARMVFP__
mrsoundhar 0:ae306d3f6076 112 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
mrsoundhar 0:ae306d3f6076 113 #endif
mrsoundhar 0:ae306d3f6076 114
mrsoundhar 0:ae306d3f6076 115 #elif defined ( __GNUC__ )
mrsoundhar 0:ae306d3f6076 116 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
mrsoundhar 0:ae306d3f6076 117 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
mrsoundhar 0:ae306d3f6076 118 #endif
mrsoundhar 0:ae306d3f6076 119
mrsoundhar 0:ae306d3f6076 120 #elif defined ( __TASKING__ )
mrsoundhar 0:ae306d3f6076 121 #if defined __FPU_VFP__
mrsoundhar 0:ae306d3f6076 122 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
mrsoundhar 0:ae306d3f6076 123 #endif
mrsoundhar 0:ae306d3f6076 124 #endif
mrsoundhar 0:ae306d3f6076 125
mrsoundhar 0:ae306d3f6076 126 #include <stdint.h> /* standard types definitions */
mrsoundhar 0:ae306d3f6076 127 #include <core_cmInstr.h> /* Core Instruction Access */
mrsoundhar 0:ae306d3f6076 128 #include <core_cmFunc.h> /* Core Function Access */
mrsoundhar 0:ae306d3f6076 129
mrsoundhar 0:ae306d3f6076 130 #endif /* __CORE_CM0_H_GENERIC */
mrsoundhar 0:ae306d3f6076 131
mrsoundhar 0:ae306d3f6076 132 #ifndef __CMSIS_GENERIC
mrsoundhar 0:ae306d3f6076 133
mrsoundhar 0:ae306d3f6076 134 #ifndef __CORE_CM0_H_DEPENDANT
mrsoundhar 0:ae306d3f6076 135 #define __CORE_CM0_H_DEPENDANT
mrsoundhar 0:ae306d3f6076 136
mrsoundhar 0:ae306d3f6076 137 /* check device defines and use defaults */
mrsoundhar 0:ae306d3f6076 138 #if defined __CHECK_DEVICE_DEFINES
mrsoundhar 0:ae306d3f6076 139 #ifndef __CM0_REV
mrsoundhar 0:ae306d3f6076 140 #define __CM0_REV 0x0000
mrsoundhar 0:ae306d3f6076 141 #warning "__CM0_REV not defined in device header file; using default!"
mrsoundhar 0:ae306d3f6076 142 #endif
mrsoundhar 0:ae306d3f6076 143
mrsoundhar 0:ae306d3f6076 144 #ifndef __NVIC_PRIO_BITS
mrsoundhar 0:ae306d3f6076 145 #define __NVIC_PRIO_BITS 2
mrsoundhar 0:ae306d3f6076 146 #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
mrsoundhar 0:ae306d3f6076 147 #endif
mrsoundhar 0:ae306d3f6076 148
mrsoundhar 0:ae306d3f6076 149 #ifndef __Vendor_SysTickConfig
mrsoundhar 0:ae306d3f6076 150 #define __Vendor_SysTickConfig 0
mrsoundhar 0:ae306d3f6076 151 #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
mrsoundhar 0:ae306d3f6076 152 #endif
mrsoundhar 0:ae306d3f6076 153 #endif
mrsoundhar 0:ae306d3f6076 154
mrsoundhar 0:ae306d3f6076 155 /* IO definitions (access restrictions to peripheral registers) */
mrsoundhar 0:ae306d3f6076 156 /**
mrsoundhar 0:ae306d3f6076 157 \defgroup CMSIS_glob_defs CMSIS Global Defines
mrsoundhar 0:ae306d3f6076 158
mrsoundhar 0:ae306d3f6076 159 <strong>IO Type Qualifiers</strong> are used
mrsoundhar 0:ae306d3f6076 160 \li to specify the access to peripheral variables.
mrsoundhar 0:ae306d3f6076 161 \li for automatic generation of peripheral register debug information.
mrsoundhar 0:ae306d3f6076 162 */
mrsoundhar 0:ae306d3f6076 163 #ifdef __cplusplus
mrsoundhar 0:ae306d3f6076 164 #define __I volatile /*!< Defines 'read only' permissions */
mrsoundhar 0:ae306d3f6076 165 #else
mrsoundhar 0:ae306d3f6076 166 #define __I volatile const /*!< Defines 'read only' permissions */
mrsoundhar 0:ae306d3f6076 167 #endif
mrsoundhar 0:ae306d3f6076 168 #define __O volatile /*!< Defines 'write only' permissions */
mrsoundhar 0:ae306d3f6076 169 #define __IO volatile /*!< Defines 'read / write' permissions */
mrsoundhar 0:ae306d3f6076 170
mrsoundhar 0:ae306d3f6076 171 /*@} end of group Cortex_M0 */
mrsoundhar 0:ae306d3f6076 172
mrsoundhar 0:ae306d3f6076 173
mrsoundhar 0:ae306d3f6076 174
mrsoundhar 0:ae306d3f6076 175 /*******************************************************************************
mrsoundhar 0:ae306d3f6076 176 * Register Abstraction
mrsoundhar 0:ae306d3f6076 177 Core Register contain:
mrsoundhar 0:ae306d3f6076 178 - Core Register
mrsoundhar 0:ae306d3f6076 179 - Core NVIC Register
mrsoundhar 0:ae306d3f6076 180 - Core SCB Register
mrsoundhar 0:ae306d3f6076 181 - Core SysTick Register
mrsoundhar 0:ae306d3f6076 182 ******************************************************************************/
mrsoundhar 0:ae306d3f6076 183 /** \defgroup CMSIS_core_register Defines and Type Definitions
mrsoundhar 0:ae306d3f6076 184 \brief Type definitions and defines for Cortex-M processor based devices.
mrsoundhar 0:ae306d3f6076 185 */
mrsoundhar 0:ae306d3f6076 186
mrsoundhar 0:ae306d3f6076 187 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 188 \defgroup CMSIS_CORE Status and Control Registers
mrsoundhar 0:ae306d3f6076 189 \brief Core Register type definitions.
mrsoundhar 0:ae306d3f6076 190 @{
mrsoundhar 0:ae306d3f6076 191 */
mrsoundhar 0:ae306d3f6076 192
mrsoundhar 0:ae306d3f6076 193 /** \brief Union type to access the Application Program Status Register (APSR).
mrsoundhar 0:ae306d3f6076 194 */
mrsoundhar 0:ae306d3f6076 195 typedef union
mrsoundhar 0:ae306d3f6076 196 {
mrsoundhar 0:ae306d3f6076 197 struct
mrsoundhar 0:ae306d3f6076 198 {
mrsoundhar 0:ae306d3f6076 199 #if (__CORTEX_M != 0x04)
mrsoundhar 0:ae306d3f6076 200 uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */
mrsoundhar 0:ae306d3f6076 201 #else
mrsoundhar 0:ae306d3f6076 202 uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */
mrsoundhar 0:ae306d3f6076 203 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
mrsoundhar 0:ae306d3f6076 204 uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */
mrsoundhar 0:ae306d3f6076 205 #endif
mrsoundhar 0:ae306d3f6076 206 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
mrsoundhar 0:ae306d3f6076 207 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
mrsoundhar 0:ae306d3f6076 208 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
mrsoundhar 0:ae306d3f6076 209 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
mrsoundhar 0:ae306d3f6076 210 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
mrsoundhar 0:ae306d3f6076 211 } b; /*!< Structure used for bit access */
mrsoundhar 0:ae306d3f6076 212 uint32_t w; /*!< Type used for word access */
mrsoundhar 0:ae306d3f6076 213 } APSR_Type;
mrsoundhar 0:ae306d3f6076 214
mrsoundhar 0:ae306d3f6076 215
mrsoundhar 0:ae306d3f6076 216 /** \brief Union type to access the Interrupt Program Status Register (IPSR).
mrsoundhar 0:ae306d3f6076 217 */
mrsoundhar 0:ae306d3f6076 218 typedef union
mrsoundhar 0:ae306d3f6076 219 {
mrsoundhar 0:ae306d3f6076 220 struct
mrsoundhar 0:ae306d3f6076 221 {
mrsoundhar 0:ae306d3f6076 222 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
mrsoundhar 0:ae306d3f6076 223 uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
mrsoundhar 0:ae306d3f6076 224 } b; /*!< Structure used for bit access */
mrsoundhar 0:ae306d3f6076 225 uint32_t w; /*!< Type used for word access */
mrsoundhar 0:ae306d3f6076 226 } IPSR_Type;
mrsoundhar 0:ae306d3f6076 227
mrsoundhar 0:ae306d3f6076 228
mrsoundhar 0:ae306d3f6076 229 /** \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
mrsoundhar 0:ae306d3f6076 230 */
mrsoundhar 0:ae306d3f6076 231 typedef union
mrsoundhar 0:ae306d3f6076 232 {
mrsoundhar 0:ae306d3f6076 233 struct
mrsoundhar 0:ae306d3f6076 234 {
mrsoundhar 0:ae306d3f6076 235 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
mrsoundhar 0:ae306d3f6076 236 #if (__CORTEX_M != 0x04)
mrsoundhar 0:ae306d3f6076 237 uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
mrsoundhar 0:ae306d3f6076 238 #else
mrsoundhar 0:ae306d3f6076 239 uint32_t _reserved0:7; /*!< bit: 9..15 Reserved */
mrsoundhar 0:ae306d3f6076 240 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
mrsoundhar 0:ae306d3f6076 241 uint32_t _reserved1:4; /*!< bit: 20..23 Reserved */
mrsoundhar 0:ae306d3f6076 242 #endif
mrsoundhar 0:ae306d3f6076 243 uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
mrsoundhar 0:ae306d3f6076 244 uint32_t IT:2; /*!< bit: 25..26 saved IT state (read 0) */
mrsoundhar 0:ae306d3f6076 245 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
mrsoundhar 0:ae306d3f6076 246 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
mrsoundhar 0:ae306d3f6076 247 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
mrsoundhar 0:ae306d3f6076 248 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
mrsoundhar 0:ae306d3f6076 249 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
mrsoundhar 0:ae306d3f6076 250 } b; /*!< Structure used for bit access */
mrsoundhar 0:ae306d3f6076 251 uint32_t w; /*!< Type used for word access */
mrsoundhar 0:ae306d3f6076 252 } xPSR_Type;
mrsoundhar 0:ae306d3f6076 253
mrsoundhar 0:ae306d3f6076 254
mrsoundhar 0:ae306d3f6076 255 /** \brief Union type to access the Control Registers (CONTROL).
mrsoundhar 0:ae306d3f6076 256 */
mrsoundhar 0:ae306d3f6076 257 typedef union
mrsoundhar 0:ae306d3f6076 258 {
mrsoundhar 0:ae306d3f6076 259 struct
mrsoundhar 0:ae306d3f6076 260 {
mrsoundhar 0:ae306d3f6076 261 uint32_t nPRIV:1; /*!< bit: 0 Execution privilege in Thread mode */
mrsoundhar 0:ae306d3f6076 262 uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
mrsoundhar 0:ae306d3f6076 263 uint32_t FPCA:1; /*!< bit: 2 FP extension active flag */
mrsoundhar 0:ae306d3f6076 264 uint32_t _reserved0:29; /*!< bit: 3..31 Reserved */
mrsoundhar 0:ae306d3f6076 265 } b; /*!< Structure used for bit access */
mrsoundhar 0:ae306d3f6076 266 uint32_t w; /*!< Type used for word access */
mrsoundhar 0:ae306d3f6076 267 } CONTROL_Type;
mrsoundhar 0:ae306d3f6076 268
mrsoundhar 0:ae306d3f6076 269 /*@} end of group CMSIS_CORE */
mrsoundhar 0:ae306d3f6076 270
mrsoundhar 0:ae306d3f6076 271
mrsoundhar 0:ae306d3f6076 272 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 273 \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
mrsoundhar 0:ae306d3f6076 274 \brief Type definitions for the NVIC Registers
mrsoundhar 0:ae306d3f6076 275 @{
mrsoundhar 0:ae306d3f6076 276 */
mrsoundhar 0:ae306d3f6076 277
mrsoundhar 0:ae306d3f6076 278 /** \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
mrsoundhar 0:ae306d3f6076 279 */
mrsoundhar 0:ae306d3f6076 280 typedef struct
mrsoundhar 0:ae306d3f6076 281 {
mrsoundhar 0:ae306d3f6076 282 __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
mrsoundhar 0:ae306d3f6076 283 uint32_t RESERVED0[31];
mrsoundhar 0:ae306d3f6076 284 __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
mrsoundhar 0:ae306d3f6076 285 uint32_t RSERVED1[31];
mrsoundhar 0:ae306d3f6076 286 __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
mrsoundhar 0:ae306d3f6076 287 uint32_t RESERVED2[31];
mrsoundhar 0:ae306d3f6076 288 __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
mrsoundhar 0:ae306d3f6076 289 uint32_t RESERVED3[31];
mrsoundhar 0:ae306d3f6076 290 uint32_t RESERVED4[64];
mrsoundhar 0:ae306d3f6076 291 __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
mrsoundhar 0:ae306d3f6076 292 } NVIC_Type;
mrsoundhar 0:ae306d3f6076 293
mrsoundhar 0:ae306d3f6076 294 /*@} end of group CMSIS_NVIC */
mrsoundhar 0:ae306d3f6076 295
mrsoundhar 0:ae306d3f6076 296
mrsoundhar 0:ae306d3f6076 297 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 298 \defgroup CMSIS_SCB System Control Block (SCB)
mrsoundhar 0:ae306d3f6076 299 \brief Type definitions for the System Control Block Registers
mrsoundhar 0:ae306d3f6076 300 @{
mrsoundhar 0:ae306d3f6076 301 */
mrsoundhar 0:ae306d3f6076 302
mrsoundhar 0:ae306d3f6076 303 /** \brief Structure type to access the System Control Block (SCB).
mrsoundhar 0:ae306d3f6076 304 */
mrsoundhar 0:ae306d3f6076 305 typedef struct
mrsoundhar 0:ae306d3f6076 306 {
mrsoundhar 0:ae306d3f6076 307 __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
mrsoundhar 0:ae306d3f6076 308 __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
mrsoundhar 0:ae306d3f6076 309 uint32_t RESERVED0;
mrsoundhar 0:ae306d3f6076 310 __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
mrsoundhar 0:ae306d3f6076 311 __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
mrsoundhar 0:ae306d3f6076 312 __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
mrsoundhar 0:ae306d3f6076 313 uint32_t RESERVED1;
mrsoundhar 0:ae306d3f6076 314 __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
mrsoundhar 0:ae306d3f6076 315 __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
mrsoundhar 0:ae306d3f6076 316 } SCB_Type;
mrsoundhar 0:ae306d3f6076 317
mrsoundhar 0:ae306d3f6076 318 /* SCB CPUID Register Definitions */
mrsoundhar 0:ae306d3f6076 319 #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */
mrsoundhar 0:ae306d3f6076 320 #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
mrsoundhar 0:ae306d3f6076 321
mrsoundhar 0:ae306d3f6076 322 #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */
mrsoundhar 0:ae306d3f6076 323 #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
mrsoundhar 0:ae306d3f6076 324
mrsoundhar 0:ae306d3f6076 325 #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */
mrsoundhar 0:ae306d3f6076 326 #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
mrsoundhar 0:ae306d3f6076 327
mrsoundhar 0:ae306d3f6076 328 #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */
mrsoundhar 0:ae306d3f6076 329 #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
mrsoundhar 0:ae306d3f6076 330
mrsoundhar 0:ae306d3f6076 331 #define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */
mrsoundhar 0:ae306d3f6076 332 #define SCB_CPUID_REVISION_Msk (0xFUL << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */
mrsoundhar 0:ae306d3f6076 333
mrsoundhar 0:ae306d3f6076 334 /* SCB Interrupt Control State Register Definitions */
mrsoundhar 0:ae306d3f6076 335 #define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */
mrsoundhar 0:ae306d3f6076 336 #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
mrsoundhar 0:ae306d3f6076 337
mrsoundhar 0:ae306d3f6076 338 #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */
mrsoundhar 0:ae306d3f6076 339 #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
mrsoundhar 0:ae306d3f6076 340
mrsoundhar 0:ae306d3f6076 341 #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */
mrsoundhar 0:ae306d3f6076 342 #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
mrsoundhar 0:ae306d3f6076 343
mrsoundhar 0:ae306d3f6076 344 #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */
mrsoundhar 0:ae306d3f6076 345 #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
mrsoundhar 0:ae306d3f6076 346
mrsoundhar 0:ae306d3f6076 347 #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */
mrsoundhar 0:ae306d3f6076 348 #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
mrsoundhar 0:ae306d3f6076 349
mrsoundhar 0:ae306d3f6076 350 #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */
mrsoundhar 0:ae306d3f6076 351 #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
mrsoundhar 0:ae306d3f6076 352
mrsoundhar 0:ae306d3f6076 353 #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */
mrsoundhar 0:ae306d3f6076 354 #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
mrsoundhar 0:ae306d3f6076 355
mrsoundhar 0:ae306d3f6076 356 #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */
mrsoundhar 0:ae306d3f6076 357 #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
mrsoundhar 0:ae306d3f6076 358
mrsoundhar 0:ae306d3f6076 359 #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */
mrsoundhar 0:ae306d3f6076 360 #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */
mrsoundhar 0:ae306d3f6076 361
mrsoundhar 0:ae306d3f6076 362 /* SCB Application Interrupt and Reset Control Register Definitions */
mrsoundhar 0:ae306d3f6076 363 #define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */
mrsoundhar 0:ae306d3f6076 364 #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
mrsoundhar 0:ae306d3f6076 365
mrsoundhar 0:ae306d3f6076 366 #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */
mrsoundhar 0:ae306d3f6076 367 #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
mrsoundhar 0:ae306d3f6076 368
mrsoundhar 0:ae306d3f6076 369 #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */
mrsoundhar 0:ae306d3f6076 370 #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
mrsoundhar 0:ae306d3f6076 371
mrsoundhar 0:ae306d3f6076 372 #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */
mrsoundhar 0:ae306d3f6076 373 #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
mrsoundhar 0:ae306d3f6076 374
mrsoundhar 0:ae306d3f6076 375 #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */
mrsoundhar 0:ae306d3f6076 376 #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
mrsoundhar 0:ae306d3f6076 377
mrsoundhar 0:ae306d3f6076 378 /* SCB System Control Register Definitions */
mrsoundhar 0:ae306d3f6076 379 #define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */
mrsoundhar 0:ae306d3f6076 380 #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
mrsoundhar 0:ae306d3f6076 381
mrsoundhar 0:ae306d3f6076 382 #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */
mrsoundhar 0:ae306d3f6076 383 #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
mrsoundhar 0:ae306d3f6076 384
mrsoundhar 0:ae306d3f6076 385 #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */
mrsoundhar 0:ae306d3f6076 386 #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
mrsoundhar 0:ae306d3f6076 387
mrsoundhar 0:ae306d3f6076 388 /* SCB Configuration Control Register Definitions */
mrsoundhar 0:ae306d3f6076 389 #define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */
mrsoundhar 0:ae306d3f6076 390 #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
mrsoundhar 0:ae306d3f6076 391
mrsoundhar 0:ae306d3f6076 392 #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */
mrsoundhar 0:ae306d3f6076 393 #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
mrsoundhar 0:ae306d3f6076 394
mrsoundhar 0:ae306d3f6076 395 /* SCB System Handler Control and State Register Definitions */
mrsoundhar 0:ae306d3f6076 396 #define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */
mrsoundhar 0:ae306d3f6076 397 #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
mrsoundhar 0:ae306d3f6076 398
mrsoundhar 0:ae306d3f6076 399 /*@} end of group CMSIS_SCB */
mrsoundhar 0:ae306d3f6076 400
mrsoundhar 0:ae306d3f6076 401
mrsoundhar 0:ae306d3f6076 402 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 403 \defgroup CMSIS_SysTick System Tick Timer (SysTick)
mrsoundhar 0:ae306d3f6076 404 \brief Type definitions for the System Timer Registers.
mrsoundhar 0:ae306d3f6076 405 @{
mrsoundhar 0:ae306d3f6076 406 */
mrsoundhar 0:ae306d3f6076 407
mrsoundhar 0:ae306d3f6076 408 /** \brief Structure type to access the System Timer (SysTick).
mrsoundhar 0:ae306d3f6076 409 */
mrsoundhar 0:ae306d3f6076 410 typedef struct
mrsoundhar 0:ae306d3f6076 411 {
mrsoundhar 0:ae306d3f6076 412 __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
mrsoundhar 0:ae306d3f6076 413 __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
mrsoundhar 0:ae306d3f6076 414 __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
mrsoundhar 0:ae306d3f6076 415 __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
mrsoundhar 0:ae306d3f6076 416 } SysTick_Type;
mrsoundhar 0:ae306d3f6076 417
mrsoundhar 0:ae306d3f6076 418 /* SysTick Control / Status Register Definitions */
mrsoundhar 0:ae306d3f6076 419 #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */
mrsoundhar 0:ae306d3f6076 420 #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
mrsoundhar 0:ae306d3f6076 421
mrsoundhar 0:ae306d3f6076 422 #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */
mrsoundhar 0:ae306d3f6076 423 #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
mrsoundhar 0:ae306d3f6076 424
mrsoundhar 0:ae306d3f6076 425 #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */
mrsoundhar 0:ae306d3f6076 426 #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
mrsoundhar 0:ae306d3f6076 427
mrsoundhar 0:ae306d3f6076 428 #define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */
mrsoundhar 0:ae306d3f6076 429 #define SysTick_CTRL_ENABLE_Msk (1UL << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */
mrsoundhar 0:ae306d3f6076 430
mrsoundhar 0:ae306d3f6076 431 /* SysTick Reload Register Definitions */
mrsoundhar 0:ae306d3f6076 432 #define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */
mrsoundhar 0:ae306d3f6076 433 #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */
mrsoundhar 0:ae306d3f6076 434
mrsoundhar 0:ae306d3f6076 435 /* SysTick Current Register Definitions */
mrsoundhar 0:ae306d3f6076 436 #define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */
mrsoundhar 0:ae306d3f6076 437 #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */
mrsoundhar 0:ae306d3f6076 438
mrsoundhar 0:ae306d3f6076 439 /* SysTick Calibration Register Definitions */
mrsoundhar 0:ae306d3f6076 440 #define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */
mrsoundhar 0:ae306d3f6076 441 #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
mrsoundhar 0:ae306d3f6076 442
mrsoundhar 0:ae306d3f6076 443 #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */
mrsoundhar 0:ae306d3f6076 444 #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
mrsoundhar 0:ae306d3f6076 445
mrsoundhar 0:ae306d3f6076 446 #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */
mrsoundhar 0:ae306d3f6076 447 #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */
mrsoundhar 0:ae306d3f6076 448
mrsoundhar 0:ae306d3f6076 449 /*@} end of group CMSIS_SysTick */
mrsoundhar 0:ae306d3f6076 450
mrsoundhar 0:ae306d3f6076 451
mrsoundhar 0:ae306d3f6076 452 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 453 \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
mrsoundhar 0:ae306d3f6076 454 \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR)
mrsoundhar 0:ae306d3f6076 455 are only accessible over DAP and not via processor. Therefore
mrsoundhar 0:ae306d3f6076 456 they are not covered by the Cortex-M0 header file.
mrsoundhar 0:ae306d3f6076 457 @{
mrsoundhar 0:ae306d3f6076 458 */
mrsoundhar 0:ae306d3f6076 459 /*@} end of group CMSIS_CoreDebug */
mrsoundhar 0:ae306d3f6076 460
mrsoundhar 0:ae306d3f6076 461
mrsoundhar 0:ae306d3f6076 462 /** \ingroup CMSIS_core_register
mrsoundhar 0:ae306d3f6076 463 \defgroup CMSIS_core_base Core Definitions
mrsoundhar 0:ae306d3f6076 464 \brief Definitions for base addresses, unions, and structures.
mrsoundhar 0:ae306d3f6076 465 @{
mrsoundhar 0:ae306d3f6076 466 */
mrsoundhar 0:ae306d3f6076 467
mrsoundhar 0:ae306d3f6076 468 /* Memory mapping of Cortex-M0 Hardware */
mrsoundhar 0:ae306d3f6076 469 #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
mrsoundhar 0:ae306d3f6076 470 #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
mrsoundhar 0:ae306d3f6076 471 #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
mrsoundhar 0:ae306d3f6076 472 #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
mrsoundhar 0:ae306d3f6076 473
mrsoundhar 0:ae306d3f6076 474 #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
mrsoundhar 0:ae306d3f6076 475 #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
mrsoundhar 0:ae306d3f6076 476 #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
mrsoundhar 0:ae306d3f6076 477
mrsoundhar 0:ae306d3f6076 478
mrsoundhar 0:ae306d3f6076 479 /*@} */
mrsoundhar 0:ae306d3f6076 480
mrsoundhar 0:ae306d3f6076 481
mrsoundhar 0:ae306d3f6076 482
mrsoundhar 0:ae306d3f6076 483 /*******************************************************************************
mrsoundhar 0:ae306d3f6076 484 * Hardware Abstraction Layer
mrsoundhar 0:ae306d3f6076 485 Core Function Interface contains:
mrsoundhar 0:ae306d3f6076 486 - Core NVIC Functions
mrsoundhar 0:ae306d3f6076 487 - Core SysTick Functions
mrsoundhar 0:ae306d3f6076 488 - Core Register Access Functions
mrsoundhar 0:ae306d3f6076 489 ******************************************************************************/
mrsoundhar 0:ae306d3f6076 490 /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
mrsoundhar 0:ae306d3f6076 491 */
mrsoundhar 0:ae306d3f6076 492
mrsoundhar 0:ae306d3f6076 493
mrsoundhar 0:ae306d3f6076 494
mrsoundhar 0:ae306d3f6076 495 /* ########################## NVIC functions #################################### */
mrsoundhar 0:ae306d3f6076 496 /** \ingroup CMSIS_Core_FunctionInterface
mrsoundhar 0:ae306d3f6076 497 \defgroup CMSIS_Core_NVICFunctions NVIC Functions
mrsoundhar 0:ae306d3f6076 498 \brief Functions that manage interrupts and exceptions via the NVIC.
mrsoundhar 0:ae306d3f6076 499 @{
mrsoundhar 0:ae306d3f6076 500 */
mrsoundhar 0:ae306d3f6076 501
mrsoundhar 0:ae306d3f6076 502 /* Interrupt Priorities are WORD accessible only under ARMv6M */
mrsoundhar 0:ae306d3f6076 503 /* The following MACROS handle generation of the register offset and byte masks */
mrsoundhar 0:ae306d3f6076 504 #define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 )
mrsoundhar 0:ae306d3f6076 505 #define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )
mrsoundhar 0:ae306d3f6076 506 #define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) )
mrsoundhar 0:ae306d3f6076 507
mrsoundhar 0:ae306d3f6076 508
mrsoundhar 0:ae306d3f6076 509 /** \brief Enable External Interrupt
mrsoundhar 0:ae306d3f6076 510
mrsoundhar 0:ae306d3f6076 511 The function enables a device-specific interrupt in the NVIC interrupt controller.
mrsoundhar 0:ae306d3f6076 512
mrsoundhar 0:ae306d3f6076 513 \param [in] IRQn External interrupt number. Value cannot be negative.
mrsoundhar 0:ae306d3f6076 514 */
mrsoundhar 0:ae306d3f6076 515 __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 516 {
mrsoundhar 0:ae306d3f6076 517 NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
mrsoundhar 0:ae306d3f6076 518 }
mrsoundhar 0:ae306d3f6076 519
mrsoundhar 0:ae306d3f6076 520
mrsoundhar 0:ae306d3f6076 521 /** \brief Disable External Interrupt
mrsoundhar 0:ae306d3f6076 522
mrsoundhar 0:ae306d3f6076 523 The function disables a device-specific interrupt in the NVIC interrupt controller.
mrsoundhar 0:ae306d3f6076 524
mrsoundhar 0:ae306d3f6076 525 \param [in] IRQn External interrupt number. Value cannot be negative.
mrsoundhar 0:ae306d3f6076 526 */
mrsoundhar 0:ae306d3f6076 527 __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 528 {
mrsoundhar 0:ae306d3f6076 529 NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
mrsoundhar 0:ae306d3f6076 530 }
mrsoundhar 0:ae306d3f6076 531
mrsoundhar 0:ae306d3f6076 532
mrsoundhar 0:ae306d3f6076 533 /** \brief Get Pending Interrupt
mrsoundhar 0:ae306d3f6076 534
mrsoundhar 0:ae306d3f6076 535 The function reads the pending register in the NVIC and returns the pending bit
mrsoundhar 0:ae306d3f6076 536 for the specified interrupt.
mrsoundhar 0:ae306d3f6076 537
mrsoundhar 0:ae306d3f6076 538 \param [in] IRQn Interrupt number.
mrsoundhar 0:ae306d3f6076 539
mrsoundhar 0:ae306d3f6076 540 \return 0 Interrupt status is not pending.
mrsoundhar 0:ae306d3f6076 541 \return 1 Interrupt status is pending.
mrsoundhar 0:ae306d3f6076 542 */
mrsoundhar 0:ae306d3f6076 543 __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 544 {
mrsoundhar 0:ae306d3f6076 545 return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
mrsoundhar 0:ae306d3f6076 546 }
mrsoundhar 0:ae306d3f6076 547
mrsoundhar 0:ae306d3f6076 548
mrsoundhar 0:ae306d3f6076 549 /** \brief Set Pending Interrupt
mrsoundhar 0:ae306d3f6076 550
mrsoundhar 0:ae306d3f6076 551 The function sets the pending bit of an external interrupt.
mrsoundhar 0:ae306d3f6076 552
mrsoundhar 0:ae306d3f6076 553 \param [in] IRQn Interrupt number. Value cannot be negative.
mrsoundhar 0:ae306d3f6076 554 */
mrsoundhar 0:ae306d3f6076 555 __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 556 {
mrsoundhar 0:ae306d3f6076 557 NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
mrsoundhar 0:ae306d3f6076 558 }
mrsoundhar 0:ae306d3f6076 559
mrsoundhar 0:ae306d3f6076 560
mrsoundhar 0:ae306d3f6076 561 /** \brief Clear Pending Interrupt
mrsoundhar 0:ae306d3f6076 562
mrsoundhar 0:ae306d3f6076 563 The function clears the pending bit of an external interrupt.
mrsoundhar 0:ae306d3f6076 564
mrsoundhar 0:ae306d3f6076 565 \param [in] IRQn External interrupt number. Value cannot be negative.
mrsoundhar 0:ae306d3f6076 566 */
mrsoundhar 0:ae306d3f6076 567 __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 568 {
mrsoundhar 0:ae306d3f6076 569 NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */
mrsoundhar 0:ae306d3f6076 570 }
mrsoundhar 0:ae306d3f6076 571
mrsoundhar 0:ae306d3f6076 572
mrsoundhar 0:ae306d3f6076 573 /** \brief Set Interrupt Priority
mrsoundhar 0:ae306d3f6076 574
mrsoundhar 0:ae306d3f6076 575 The function sets the priority of an interrupt.
mrsoundhar 0:ae306d3f6076 576
mrsoundhar 0:ae306d3f6076 577 \note The priority cannot be set for every core interrupt.
mrsoundhar 0:ae306d3f6076 578
mrsoundhar 0:ae306d3f6076 579 \param [in] IRQn Interrupt number.
mrsoundhar 0:ae306d3f6076 580 \param [in] priority Priority to set.
mrsoundhar 0:ae306d3f6076 581 */
mrsoundhar 0:ae306d3f6076 582 __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
mrsoundhar 0:ae306d3f6076 583 {
mrsoundhar 0:ae306d3f6076 584 if(IRQn < 0) {
mrsoundhar 0:ae306d3f6076 585 SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
mrsoundhar 0:ae306d3f6076 586 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
mrsoundhar 0:ae306d3f6076 587 else {
mrsoundhar 0:ae306d3f6076 588 NVIC->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
mrsoundhar 0:ae306d3f6076 589 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
mrsoundhar 0:ae306d3f6076 590 }
mrsoundhar 0:ae306d3f6076 591
mrsoundhar 0:ae306d3f6076 592
mrsoundhar 0:ae306d3f6076 593 /** \brief Get Interrupt Priority
mrsoundhar 0:ae306d3f6076 594
mrsoundhar 0:ae306d3f6076 595 The function reads the priority of an interrupt. The interrupt
mrsoundhar 0:ae306d3f6076 596 number can be positive to specify an external (device specific)
mrsoundhar 0:ae306d3f6076 597 interrupt, or negative to specify an internal (core) interrupt.
mrsoundhar 0:ae306d3f6076 598
mrsoundhar 0:ae306d3f6076 599
mrsoundhar 0:ae306d3f6076 600 \param [in] IRQn Interrupt number.
mrsoundhar 0:ae306d3f6076 601 \return Interrupt Priority. Value is aligned automatically to the implemented
mrsoundhar 0:ae306d3f6076 602 priority bits of the microcontroller.
mrsoundhar 0:ae306d3f6076 603 */
mrsoundhar 0:ae306d3f6076 604 __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn)
mrsoundhar 0:ae306d3f6076 605 {
mrsoundhar 0:ae306d3f6076 606
mrsoundhar 0:ae306d3f6076 607 if(IRQn < 0) {
mrsoundhar 0:ae306d3f6076 608 return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */
mrsoundhar 0:ae306d3f6076 609 else {
mrsoundhar 0:ae306d3f6076 610 return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */
mrsoundhar 0:ae306d3f6076 611 }
mrsoundhar 0:ae306d3f6076 612
mrsoundhar 0:ae306d3f6076 613
mrsoundhar 0:ae306d3f6076 614 /** \brief System Reset
mrsoundhar 0:ae306d3f6076 615
mrsoundhar 0:ae306d3f6076 616 The function initiates a system reset request to reset the MCU.
mrsoundhar 0:ae306d3f6076 617 */
mrsoundhar 0:ae306d3f6076 618 __STATIC_INLINE void NVIC_SystemReset(void)
mrsoundhar 0:ae306d3f6076 619 {
mrsoundhar 0:ae306d3f6076 620 __DSB(); /* Ensure all outstanding memory accesses included
mrsoundhar 0:ae306d3f6076 621 buffered write are completed before reset */
mrsoundhar 0:ae306d3f6076 622 SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) |
mrsoundhar 0:ae306d3f6076 623 SCB_AIRCR_SYSRESETREQ_Msk);
mrsoundhar 0:ae306d3f6076 624 __DSB(); /* Ensure completion of memory access */
mrsoundhar 0:ae306d3f6076 625 while(1); /* wait until reset */
mrsoundhar 0:ae306d3f6076 626 }
mrsoundhar 0:ae306d3f6076 627
mrsoundhar 0:ae306d3f6076 628 /*@} end of CMSIS_Core_NVICFunctions */
mrsoundhar 0:ae306d3f6076 629
mrsoundhar 0:ae306d3f6076 630
mrsoundhar 0:ae306d3f6076 631
mrsoundhar 0:ae306d3f6076 632 /* ################################## SysTick function ############################################ */
mrsoundhar 0:ae306d3f6076 633 /** \ingroup CMSIS_Core_FunctionInterface
mrsoundhar 0:ae306d3f6076 634 \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
mrsoundhar 0:ae306d3f6076 635 \brief Functions that configure the System.
mrsoundhar 0:ae306d3f6076 636 @{
mrsoundhar 0:ae306d3f6076 637 */
mrsoundhar 0:ae306d3f6076 638
mrsoundhar 0:ae306d3f6076 639 #if (__Vendor_SysTickConfig == 0)
mrsoundhar 0:ae306d3f6076 640
mrsoundhar 0:ae306d3f6076 641 /** \brief System Tick Configuration
mrsoundhar 0:ae306d3f6076 642
mrsoundhar 0:ae306d3f6076 643 The function initializes the System Timer and its interrupt, and starts the System Tick Timer.
mrsoundhar 0:ae306d3f6076 644 Counter is in free running mode to generate periodic interrupts.
mrsoundhar 0:ae306d3f6076 645
mrsoundhar 0:ae306d3f6076 646 \param [in] ticks Number of ticks between two interrupts.
mrsoundhar 0:ae306d3f6076 647
mrsoundhar 0:ae306d3f6076 648 \return 0 Function succeeded.
mrsoundhar 0:ae306d3f6076 649 \return 1 Function failed.
mrsoundhar 0:ae306d3f6076 650
mrsoundhar 0:ae306d3f6076 651 \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
mrsoundhar 0:ae306d3f6076 652 function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
mrsoundhar 0:ae306d3f6076 653 must contain a vendor-specific implementation of this function.
mrsoundhar 0:ae306d3f6076 654
mrsoundhar 0:ae306d3f6076 655 */
mrsoundhar 0:ae306d3f6076 656 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
mrsoundhar 0:ae306d3f6076 657 {
mrsoundhar 0:ae306d3f6076 658 if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
mrsoundhar 0:ae306d3f6076 659
mrsoundhar 0:ae306d3f6076 660 SysTick->LOAD = ticks - 1; /* set reload register */
mrsoundhar 0:ae306d3f6076 661 NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
mrsoundhar 0:ae306d3f6076 662 SysTick->VAL = 0; /* Load the SysTick Counter Value */
mrsoundhar 0:ae306d3f6076 663 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
mrsoundhar 0:ae306d3f6076 664 SysTick_CTRL_TICKINT_Msk |
mrsoundhar 0:ae306d3f6076 665 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
mrsoundhar 0:ae306d3f6076 666 return (0); /* Function successful */
mrsoundhar 0:ae306d3f6076 667 }
mrsoundhar 0:ae306d3f6076 668
mrsoundhar 0:ae306d3f6076 669 #endif
mrsoundhar 0:ae306d3f6076 670
mrsoundhar 0:ae306d3f6076 671 /*@} end of CMSIS_Core_SysTickFunctions */
mrsoundhar 0:ae306d3f6076 672
mrsoundhar 0:ae306d3f6076 673
mrsoundhar 0:ae306d3f6076 674
mrsoundhar 0:ae306d3f6076 675
mrsoundhar 0:ae306d3f6076 676 #endif /* __CORE_CM0_H_DEPENDANT */
mrsoundhar 0:ae306d3f6076 677
mrsoundhar 0:ae306d3f6076 678 #endif /* __CMSIS_GENERIC */
mrsoundhar 0:ae306d3f6076 679
mrsoundhar 0:ae306d3f6076 680 #ifdef __cplusplus
mrsoundhar 0:ae306d3f6076 681 }
mrsoundhar 0:ae306d3f6076 682 #endif