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2 | mjames | 1 | /**************************************************************************//** |
2 | * @file core_cm0.h |
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3 | * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File |
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4 | * @version V4.10 |
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5 | * @date 18. March 2015 |
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6 | * |
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7 | * @note |
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8 | * |
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9 | ******************************************************************************/ |
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10 | /* Copyright (c) 2009 - 2015 ARM LIMITED |
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11 | |||
12 | All rights reserved. |
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13 | Redistribution and use in source and binary forms, with or without |
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14 | modification, are permitted provided that the following conditions are met: |
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15 | - Redistributions of source code must retain the above copyright |
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16 | notice, this list of conditions and the following disclaimer. |
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17 | - Redistributions in binary form must reproduce the above copyright |
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18 | notice, this list of conditions and the following disclaimer in the |
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19 | documentation and/or other materials provided with the distribution. |
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20 | - Neither the name of ARM nor the names of its contributors may be used |
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21 | to endorse or promote products derived from this software without |
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22 | specific prior written permission. |
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23 | * |
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24 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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25 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
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28 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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29 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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30 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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31 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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32 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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33 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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34 | POSSIBILITY OF SUCH DAMAGE. |
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35 | ---------------------------------------------------------------------------*/ |
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36 | |||
37 | |||
38 | #if defined ( __ICCARM__ ) |
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39 | #pragma system_include /* treat file as system include file for MISRA check */ |
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40 | #endif |
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41 | |||
42 | #ifndef __CORE_CM0_H_GENERIC |
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43 | #define __CORE_CM0_H_GENERIC |
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44 | |||
45 | #ifdef __cplusplus |
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46 | extern "C" { |
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47 | #endif |
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48 | |||
49 | /** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions |
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50 | CMSIS violates the following MISRA-C:2004 rules: |
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51 | |||
52 | \li Required Rule 8.5, object/function definition in header file.<br> |
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53 | Function definitions in header files are used to allow 'inlining'. |
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54 | |||
55 | \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br> |
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56 | Unions are used for effective representation of core registers. |
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57 | |||
58 | \li Advisory Rule 19.7, Function-like macro defined.<br> |
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59 | Function-like macros are used to allow more efficient code. |
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60 | */ |
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61 | |||
62 | |||
63 | /******************************************************************************* |
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64 | * CMSIS definitions |
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65 | ******************************************************************************/ |
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66 | /** \ingroup Cortex_M0 |
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67 | @{ |
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68 | */ |
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69 | |||
70 | /* CMSIS CM0 definitions */ |
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71 | #define __CM0_CMSIS_VERSION_MAIN (0x04) /*!< [31:16] CMSIS HAL main version */ |
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72 | #define __CM0_CMSIS_VERSION_SUB (0x00) /*!< [15:0] CMSIS HAL sub version */ |
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73 | #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | \ |
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74 | __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */ |
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75 | |||
76 | #define __CORTEX_M (0x00) /*!< Cortex-M Core */ |
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77 | |||
78 | |||
79 | #if defined ( __CC_ARM ) |
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80 | #define __ASM __asm /*!< asm keyword for ARM Compiler */ |
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81 | #define __INLINE __inline /*!< inline keyword for ARM Compiler */ |
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82 | #define __STATIC_INLINE static __inline |
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83 | |||
84 | #elif defined ( __GNUC__ ) |
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85 | #define __ASM __asm /*!< asm keyword for GNU Compiler */ |
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86 | #define __INLINE inline /*!< inline keyword for GNU Compiler */ |
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87 | #define __STATIC_INLINE static inline |
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88 | |||
89 | #elif defined ( __ICCARM__ ) |
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90 | #define __ASM __asm /*!< asm keyword for IAR Compiler */ |
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91 | #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */ |
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92 | #define __STATIC_INLINE static inline |
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93 | |||
94 | #elif defined ( __TMS470__ ) |
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95 | #define __ASM __asm /*!< asm keyword for TI CCS Compiler */ |
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96 | #define __STATIC_INLINE static inline |
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97 | |||
98 | #elif defined ( __TASKING__ ) |
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99 | #define __ASM __asm /*!< asm keyword for TASKING Compiler */ |
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100 | #define __INLINE inline /*!< inline keyword for TASKING Compiler */ |
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101 | #define __STATIC_INLINE static inline |
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102 | |||
103 | #elif defined ( __CSMC__ ) |
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104 | #define __packed |
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105 | #define __ASM _asm /*!< asm keyword for COSMIC Compiler */ |
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106 | #define __INLINE inline /*use -pc99 on compile line !< inline keyword for COSMIC Compiler */ |
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107 | #define __STATIC_INLINE static inline |
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108 | |||
109 | #endif |
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110 | |||
111 | /** __FPU_USED indicates whether an FPU is used or not. |
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112 | This core does not support an FPU at all |
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113 | */ |
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114 | #define __FPU_USED 0 |
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115 | |||
116 | #if defined ( __CC_ARM ) |
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117 | #if defined __TARGET_FPU_VFP |
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118 | #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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119 | #endif |
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120 | |||
121 | #elif defined ( __GNUC__ ) |
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122 | #if defined (__VFP_FP__) && !defined(__SOFTFP__) |
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123 | #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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124 | #endif |
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125 | |||
126 | #elif defined ( __ICCARM__ ) |
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127 | #if defined __ARMVFP__ |
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128 | #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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129 | #endif |
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130 | |||
131 | #elif defined ( __TMS470__ ) |
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132 | #if defined __TI__VFP_SUPPORT____ |
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133 | #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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134 | #endif |
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135 | |||
136 | #elif defined ( __TASKING__ ) |
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137 | #if defined __FPU_VFP__ |
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138 | #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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139 | #endif |
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140 | |||
141 | #elif defined ( __CSMC__ ) /* Cosmic */ |
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142 | #if ( __CSMC__ & 0x400) // FPU present for parser |
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143 | #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" |
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144 | #endif |
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145 | #endif |
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146 | |||
147 | #include <stdint.h> /* standard types definitions */ |
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148 | #include <core_cmInstr.h> /* Core Instruction Access */ |
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149 | #include <core_cmFunc.h> /* Core Function Access */ |
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150 | |||
151 | #ifdef __cplusplus |
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152 | } |
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153 | #endif |
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154 | |||
155 | #endif /* __CORE_CM0_H_GENERIC */ |
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156 | |||
157 | #ifndef __CMSIS_GENERIC |
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158 | |||
159 | #ifndef __CORE_CM0_H_DEPENDANT |
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160 | #define __CORE_CM0_H_DEPENDANT |
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161 | |||
162 | #ifdef __cplusplus |
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163 | extern "C" { |
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164 | #endif |
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165 | |||
166 | /* check device defines and use defaults */ |
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167 | #if defined __CHECK_DEVICE_DEFINES |
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168 | #ifndef __CM0_REV |
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169 | #define __CM0_REV 0x0000 |
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170 | #warning "__CM0_REV not defined in device header file; using default!" |
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171 | #endif |
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172 | |||
173 | #ifndef __NVIC_PRIO_BITS |
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174 | #define __NVIC_PRIO_BITS 2 |
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175 | #warning "__NVIC_PRIO_BITS not defined in device header file; using default!" |
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176 | #endif |
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177 | |||
178 | #ifndef __Vendor_SysTickConfig |
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179 | #define __Vendor_SysTickConfig 0 |
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180 | #warning "__Vendor_SysTickConfig not defined in device header file; using default!" |
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181 | #endif |
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182 | #endif |
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183 | |||
184 | /* IO definitions (access restrictions to peripheral registers) */ |
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185 | /** |
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186 | \defgroup CMSIS_glob_defs CMSIS Global Defines |
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187 | |||
188 | <strong>IO Type Qualifiers</strong> are used |
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189 | \li to specify the access to peripheral variables. |
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190 | \li for automatic generation of peripheral register debug information. |
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191 | */ |
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192 | #ifdef __cplusplus |
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193 | #define __I volatile /*!< Defines 'read only' permissions */ |
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194 | #else |
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195 | #define __I volatile const /*!< Defines 'read only' permissions */ |
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196 | #endif |
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197 | #define __O volatile /*!< Defines 'write only' permissions */ |
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198 | #define __IO volatile /*!< Defines 'read / write' permissions */ |
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199 | |||
200 | /*@} end of group Cortex_M0 */ |
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201 | |||
202 | |||
203 | |||
204 | /******************************************************************************* |
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205 | * Register Abstraction |
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206 | Core Register contain: |
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207 | - Core Register |
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208 | - Core NVIC Register |
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209 | - Core SCB Register |
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210 | - Core SysTick Register |
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211 | ******************************************************************************/ |
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212 | /** \defgroup CMSIS_core_register Defines and Type Definitions |
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213 | \brief Type definitions and defines for Cortex-M processor based devices. |
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214 | */ |
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215 | |||
216 | /** \ingroup CMSIS_core_register |
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217 | \defgroup CMSIS_CORE Status and Control Registers |
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218 | \brief Core Register type definitions. |
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219 | @{ |
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220 | */ |
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221 | |||
222 | /** \brief Union type to access the Application Program Status Register (APSR). |
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223 | */ |
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224 | typedef union |
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225 | { |
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226 | struct |
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227 | { |
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228 | uint32_t _reserved0:28; /*!< bit: 0..27 Reserved */ |
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229 | uint32_t V:1; /*!< bit: 28 Overflow condition code flag */ |
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230 | uint32_t C:1; /*!< bit: 29 Carry condition code flag */ |
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231 | uint32_t Z:1; /*!< bit: 30 Zero condition code flag */ |
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232 | uint32_t N:1; /*!< bit: 31 Negative condition code flag */ |
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233 | } b; /*!< Structure used for bit access */ |
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234 | uint32_t w; /*!< Type used for word access */ |
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235 | } APSR_Type; |
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236 | |||
237 | /* APSR Register Definitions */ |
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238 | #define APSR_N_Pos 31 /*!< APSR: N Position */ |
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239 | #define APSR_N_Msk (1UL << APSR_N_Pos) /*!< APSR: N Mask */ |
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240 | |||
241 | #define APSR_Z_Pos 30 /*!< APSR: Z Position */ |
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242 | #define APSR_Z_Msk (1UL << APSR_Z_Pos) /*!< APSR: Z Mask */ |
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243 | |||
244 | #define APSR_C_Pos 29 /*!< APSR: C Position */ |
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245 | #define APSR_C_Msk (1UL << APSR_C_Pos) /*!< APSR: C Mask */ |
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246 | |||
247 | #define APSR_V_Pos 28 /*!< APSR: V Position */ |
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248 | #define APSR_V_Msk (1UL << APSR_V_Pos) /*!< APSR: V Mask */ |
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249 | |||
250 | |||
251 | /** \brief Union type to access the Interrupt Program Status Register (IPSR). |
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252 | */ |
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253 | typedef union |
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254 | { |
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255 | struct |
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256 | { |
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257 | uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */ |
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258 | uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */ |
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259 | } b; /*!< Structure used for bit access */ |
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260 | uint32_t w; /*!< Type used for word access */ |
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261 | } IPSR_Type; |
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262 | |||
263 | /* IPSR Register Definitions */ |
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264 | #define IPSR_ISR_Pos 0 /*!< IPSR: ISR Position */ |
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265 | #define IPSR_ISR_Msk (0x1FFUL /*<< IPSR_ISR_Pos*/) /*!< IPSR: ISR Mask */ |
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266 | |||
267 | |||
268 | /** \brief Union type to access the Special-Purpose Program Status Registers (xPSR). |
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269 | */ |
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270 | typedef union |
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271 | { |
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272 | struct |
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273 | { |
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274 | uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */ |
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275 | uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */ |
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276 | uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */ |
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277 | uint32_t _reserved1:3; /*!< bit: 25..27 Reserved */ |
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278 | uint32_t V:1; /*!< bit: 28 Overflow condition code flag */ |
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279 | uint32_t C:1; /*!< bit: 29 Carry condition code flag */ |
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280 | uint32_t Z:1; /*!< bit: 30 Zero condition code flag */ |
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281 | uint32_t N:1; /*!< bit: 31 Negative condition code flag */ |
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282 | } b; /*!< Structure used for bit access */ |
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283 | uint32_t w; /*!< Type used for word access */ |
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284 | } xPSR_Type; |
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285 | |||
286 | /* xPSR Register Definitions */ |
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287 | #define xPSR_N_Pos 31 /*!< xPSR: N Position */ |
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288 | #define xPSR_N_Msk (1UL << xPSR_N_Pos) /*!< xPSR: N Mask */ |
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289 | |||
290 | #define xPSR_Z_Pos 30 /*!< xPSR: Z Position */ |
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291 | #define xPSR_Z_Msk (1UL << xPSR_Z_Pos) /*!< xPSR: Z Mask */ |
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292 | |||
293 | #define xPSR_C_Pos 29 /*!< xPSR: C Position */ |
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294 | #define xPSR_C_Msk (1UL << xPSR_C_Pos) /*!< xPSR: C Mask */ |
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295 | |||
296 | #define xPSR_V_Pos 28 /*!< xPSR: V Position */ |
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297 | #define xPSR_V_Msk (1UL << xPSR_V_Pos) /*!< xPSR: V Mask */ |
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298 | |||
299 | #define xPSR_T_Pos 24 /*!< xPSR: T Position */ |
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300 | #define xPSR_T_Msk (1UL << xPSR_T_Pos) /*!< xPSR: T Mask */ |
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301 | |||
302 | #define xPSR_ISR_Pos 0 /*!< xPSR: ISR Position */ |
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303 | #define xPSR_ISR_Msk (0x1FFUL /*<< xPSR_ISR_Pos*/) /*!< xPSR: ISR Mask */ |
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304 | |||
305 | |||
306 | /** \brief Union type to access the Control Registers (CONTROL). |
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307 | */ |
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308 | typedef union |
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309 | { |
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310 | struct |
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311 | { |
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312 | uint32_t _reserved0:1; /*!< bit: 0 Reserved */ |
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313 | uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */ |
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314 | uint32_t _reserved1:30; /*!< bit: 2..31 Reserved */ |
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315 | } b; /*!< Structure used for bit access */ |
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316 | uint32_t w; /*!< Type used for word access */ |
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317 | } CONTROL_Type; |
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318 | |||
319 | /* CONTROL Register Definitions */ |
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320 | #define CONTROL_SPSEL_Pos 1 /*!< CONTROL: SPSEL Position */ |
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321 | #define CONTROL_SPSEL_Msk (1UL << CONTROL_SPSEL_Pos) /*!< CONTROL: SPSEL Mask */ |
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322 | |||
323 | /*@} end of group CMSIS_CORE */ |
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324 | |||
325 | |||
326 | /** \ingroup CMSIS_core_register |
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327 | \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC) |
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328 | \brief Type definitions for the NVIC Registers |
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329 | @{ |
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330 | */ |
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331 | |||
332 | /** \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC). |
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333 | */ |
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334 | typedef struct |
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335 | { |
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336 | __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */ |
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337 | uint32_t RESERVED0[31]; |
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338 | __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */ |
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339 | uint32_t RSERVED1[31]; |
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340 | __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */ |
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341 | uint32_t RESERVED2[31]; |
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342 | __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */ |
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343 | uint32_t RESERVED3[31]; |
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344 | uint32_t RESERVED4[64]; |
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345 | __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */ |
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346 | } NVIC_Type; |
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347 | |||
348 | /*@} end of group CMSIS_NVIC */ |
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349 | |||
350 | |||
351 | /** \ingroup CMSIS_core_register |
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352 | \defgroup CMSIS_SCB System Control Block (SCB) |
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353 | \brief Type definitions for the System Control Block Registers |
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354 | @{ |
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355 | */ |
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356 | |||
357 | /** \brief Structure type to access the System Control Block (SCB). |
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358 | */ |
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359 | typedef struct |
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360 | { |
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361 | __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */ |
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362 | __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */ |
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363 | uint32_t RESERVED0; |
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364 | __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */ |
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365 | __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */ |
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366 | __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */ |
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367 | uint32_t RESERVED1; |
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368 | __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */ |
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369 | __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */ |
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370 | } SCB_Type; |
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371 | |||
372 | /* SCB CPUID Register Definitions */ |
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373 | #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */ |
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374 | #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */ |
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375 | |||
376 | #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */ |
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377 | #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */ |
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378 | |||
379 | #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */ |
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380 | #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */ |
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381 | |||
382 | #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */ |
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383 | #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */ |
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384 | |||
385 | #define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */ |
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386 | #define SCB_CPUID_REVISION_Msk (0xFUL /*<< SCB_CPUID_REVISION_Pos*/) /*!< SCB CPUID: REVISION Mask */ |
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387 | |||
388 | /* SCB Interrupt Control State Register Definitions */ |
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389 | #define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */ |
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390 | #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */ |
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391 | |||
392 | #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */ |
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393 | #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */ |
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394 | |||
395 | #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */ |
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396 | #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */ |
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397 | |||
398 | #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */ |
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399 | #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */ |
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400 | |||
401 | #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */ |
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402 | #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */ |
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403 | |||
404 | #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */ |
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405 | #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */ |
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406 | |||
407 | #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */ |
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408 | #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */ |
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409 | |||
410 | #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */ |
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411 | #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */ |
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412 | |||
413 | #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */ |
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414 | #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL /*<< SCB_ICSR_VECTACTIVE_Pos*/) /*!< SCB ICSR: VECTACTIVE Mask */ |
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415 | |||
416 | /* SCB Application Interrupt and Reset Control Register Definitions */ |
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417 | #define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */ |
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418 | #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */ |
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419 | |||
420 | #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */ |
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421 | #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */ |
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422 | |||
423 | #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */ |
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424 | #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */ |
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425 | |||
426 | #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */ |
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427 | #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */ |
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428 | |||
429 | #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */ |
||
430 | #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */ |
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431 | |||
432 | /* SCB System Control Register Definitions */ |
||
433 | #define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */ |
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434 | #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */ |
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435 | |||
436 | #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */ |
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437 | #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */ |
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438 | |||
439 | #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */ |
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440 | #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */ |
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441 | |||
442 | /* SCB Configuration Control Register Definitions */ |
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443 | #define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */ |
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444 | #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */ |
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445 | |||
446 | #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */ |
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447 | #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */ |
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448 | |||
449 | /* SCB System Handler Control and State Register Definitions */ |
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450 | #define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */ |
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451 | #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */ |
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452 | |||
453 | /*@} end of group CMSIS_SCB */ |
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454 | |||
455 | |||
456 | /** \ingroup CMSIS_core_register |
||
457 | \defgroup CMSIS_SysTick System Tick Timer (SysTick) |
||
458 | \brief Type definitions for the System Timer Registers. |
||
459 | @{ |
||
460 | */ |
||
461 | |||
462 | /** \brief Structure type to access the System Timer (SysTick). |
||
463 | */ |
||
464 | typedef struct |
||
465 | { |
||
466 | __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */ |
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467 | __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */ |
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468 | __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */ |
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469 | __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */ |
||
470 | } SysTick_Type; |
||
471 | |||
472 | /* SysTick Control / Status Register Definitions */ |
||
473 | #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */ |
||
474 | #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */ |
||
475 | |||
476 | #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */ |
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477 | #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */ |
||
478 | |||
479 | #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */ |
||
480 | #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */ |
||
481 | |||
482 | #define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */ |
||
483 | #define SysTick_CTRL_ENABLE_Msk (1UL /*<< SysTick_CTRL_ENABLE_Pos*/) /*!< SysTick CTRL: ENABLE Mask */ |
||
484 | |||
485 | /* SysTick Reload Register Definitions */ |
||
486 | #define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */ |
||
487 | #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL /*<< SysTick_LOAD_RELOAD_Pos*/) /*!< SysTick LOAD: RELOAD Mask */ |
||
488 | |||
489 | /* SysTick Current Register Definitions */ |
||
490 | #define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */ |
||
491 | #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL /*<< SysTick_VAL_CURRENT_Pos*/) /*!< SysTick VAL: CURRENT Mask */ |
||
492 | |||
493 | /* SysTick Calibration Register Definitions */ |
||
494 | #define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */ |
||
495 | #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */ |
||
496 | |||
497 | #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */ |
||
498 | #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */ |
||
499 | |||
500 | #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */ |
||
501 | #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL /*<< SysTick_CALIB_TENMS_Pos*/) /*!< SysTick CALIB: TENMS Mask */ |
||
502 | |||
503 | /*@} end of group CMSIS_SysTick */ |
||
504 | |||
505 | |||
506 | /** \ingroup CMSIS_core_register |
||
507 | \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug) |
||
508 | \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR) |
||
509 | are only accessible over DAP and not via processor. Therefore |
||
510 | they are not covered by the Cortex-M0 header file. |
||
511 | @{ |
||
512 | */ |
||
513 | /*@} end of group CMSIS_CoreDebug */ |
||
514 | |||
515 | |||
516 | /** \ingroup CMSIS_core_register |
||
517 | \defgroup CMSIS_core_base Core Definitions |
||
518 | \brief Definitions for base addresses, unions, and structures. |
||
519 | @{ |
||
520 | */ |
||
521 | |||
522 | /* Memory mapping of Cortex-M0 Hardware */ |
||
523 | #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */ |
||
524 | #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */ |
||
525 | #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */ |
||
526 | #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */ |
||
527 | |||
528 | #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */ |
||
529 | #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */ |
||
530 | #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */ |
||
531 | |||
532 | |||
533 | /*@} */ |
||
534 | |||
535 | |||
536 | |||
537 | /******************************************************************************* |
||
538 | * Hardware Abstraction Layer |
||
539 | Core Function Interface contains: |
||
540 | - Core NVIC Functions |
||
541 | - Core SysTick Functions |
||
542 | - Core Register Access Functions |
||
543 | ******************************************************************************/ |
||
544 | /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference |
||
545 | */ |
||
546 | |||
547 | |||
548 | |||
549 | /* ########################## NVIC functions #################################### */ |
||
550 | /** \ingroup CMSIS_Core_FunctionInterface |
||
551 | \defgroup CMSIS_Core_NVICFunctions NVIC Functions |
||
552 | \brief Functions that manage interrupts and exceptions via the NVIC. |
||
553 | @{ |
||
554 | */ |
||
555 | |||
556 | /* Interrupt Priorities are WORD accessible only under ARMv6M */ |
||
557 | /* The following MACROS handle generation of the register offset and byte masks */ |
||
558 | #define _BIT_SHIFT(IRQn) ( ((((uint32_t)(int32_t)(IRQn)) ) & 0x03UL) * 8UL) |
||
559 | #define _SHP_IDX(IRQn) ( (((((uint32_t)(int32_t)(IRQn)) & 0x0FUL)-8UL) >> 2UL) ) |
||
560 | #define _IP_IDX(IRQn) ( (((uint32_t)(int32_t)(IRQn)) >> 2UL) ) |
||
561 | |||
562 | |||
563 | /** \brief Enable External Interrupt |
||
564 | |||
565 | The function enables a device-specific interrupt in the NVIC interrupt controller. |
||
566 | |||
567 | \param [in] IRQn External interrupt number. Value cannot be negative. |
||
568 | */ |
||
569 | __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn) |
||
570 | { |
||
571 | NVIC->ISER[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); |
||
572 | } |
||
573 | |||
574 | |||
575 | /** \brief Disable External Interrupt |
||
576 | |||
577 | The function disables a device-specific interrupt in the NVIC interrupt controller. |
||
578 | |||
579 | \param [in] IRQn External interrupt number. Value cannot be negative. |
||
580 | */ |
||
581 | __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn) |
||
582 | { |
||
583 | NVIC->ICER[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); |
||
584 | } |
||
585 | |||
586 | |||
587 | /** \brief Get Pending Interrupt |
||
588 | |||
589 | The function reads the pending register in the NVIC and returns the pending bit |
||
590 | for the specified interrupt. |
||
591 | |||
592 | \param [in] IRQn Interrupt number. |
||
593 | |||
594 | \return 0 Interrupt status is not pending. |
||
595 | \return 1 Interrupt status is pending. |
||
596 | */ |
||
597 | __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) |
||
598 | { |
||
599 | return((uint32_t)(((NVIC->ISPR[0] & (1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL)); |
||
600 | } |
||
601 | |||
602 | |||
603 | /** \brief Set Pending Interrupt |
||
604 | |||
605 | The function sets the pending bit of an external interrupt. |
||
606 | |||
607 | \param [in] IRQn Interrupt number. Value cannot be negative. |
||
608 | */ |
||
609 | __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) |
||
610 | { |
||
611 | NVIC->ISPR[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); |
||
612 | } |
||
613 | |||
614 | |||
615 | /** \brief Clear Pending Interrupt |
||
616 | |||
617 | The function clears the pending bit of an external interrupt. |
||
618 | |||
619 | \param [in] IRQn External interrupt number. Value cannot be negative. |
||
620 | */ |
||
621 | __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) |
||
622 | { |
||
623 | NVIC->ICPR[0] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); |
||
624 | } |
||
625 | |||
626 | |||
627 | /** \brief Set Interrupt Priority |
||
628 | |||
629 | The function sets the priority of an interrupt. |
||
630 | |||
631 | \note The priority cannot be set for every core interrupt. |
||
632 | |||
633 | \param [in] IRQn Interrupt number. |
||
634 | \param [in] priority Priority to set. |
||
635 | */ |
||
636 | __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority) |
||
637 | { |
||
638 | if((int32_t)(IRQn) < 0) { |
||
639 | SCB->SHP[_SHP_IDX(IRQn)] = ((uint32_t)(SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) | |
||
640 | (((priority << (8 - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn))); |
||
641 | } |
||
642 | else { |
||
643 | NVIC->IP[_IP_IDX(IRQn)] = ((uint32_t)(NVIC->IP[_IP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) | |
||
644 | (((priority << (8 - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn))); |
||
645 | } |
||
646 | } |
||
647 | |||
648 | |||
649 | /** \brief Get Interrupt Priority |
||
650 | |||
651 | The function reads the priority of an interrupt. The interrupt |
||
652 | number can be positive to specify an external (device specific) |
||
653 | interrupt, or negative to specify an internal (core) interrupt. |
||
654 | |||
655 | |||
656 | \param [in] IRQn Interrupt number. |
||
657 | \return Interrupt Priority. Value is aligned automatically to the implemented |
||
658 | priority bits of the microcontroller. |
||
659 | */ |
||
660 | __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn) |
||
661 | { |
||
662 | |||
663 | if((int32_t)(IRQn) < 0) { |
||
664 | return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8 - __NVIC_PRIO_BITS))); |
||
665 | } |
||
666 | else { |
||
667 | return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8 - __NVIC_PRIO_BITS))); |
||
668 | } |
||
669 | } |
||
670 | |||
671 | |||
672 | /** \brief System Reset |
||
673 | |||
674 | The function initiates a system reset request to reset the MCU. |
||
675 | */ |
||
676 | __STATIC_INLINE void NVIC_SystemReset(void) |
||
677 | { |
||
678 | __DSB(); /* Ensure all outstanding memory accesses included |
||
679 | buffered write are completed before reset */ |
||
680 | SCB->AIRCR = ((0x5FAUL << SCB_AIRCR_VECTKEY_Pos) | |
||
681 | SCB_AIRCR_SYSRESETREQ_Msk); |
||
682 | __DSB(); /* Ensure completion of memory access */ |
||
683 | while(1) { __NOP(); } /* wait until reset */ |
||
684 | } |
||
685 | |||
686 | /*@} end of CMSIS_Core_NVICFunctions */ |
||
687 | |||
688 | |||
689 | |||
690 | /* ################################## SysTick function ############################################ */ |
||
691 | /** \ingroup CMSIS_Core_FunctionInterface |
||
692 | \defgroup CMSIS_Core_SysTickFunctions SysTick Functions |
||
693 | \brief Functions that configure the System. |
||
694 | @{ |
||
695 | */ |
||
696 | |||
697 | #if (__Vendor_SysTickConfig == 0) |
||
698 | |||
699 | /** \brief System Tick Configuration |
||
700 | |||
701 | The function initializes the System Timer and its interrupt, and starts the System Tick Timer. |
||
702 | Counter is in free running mode to generate periodic interrupts. |
||
703 | |||
704 | \param [in] ticks Number of ticks between two interrupts. |
||
705 | |||
706 | \return 0 Function succeeded. |
||
707 | \return 1 Function failed. |
||
708 | |||
709 | \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the |
||
710 | function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b> |
||
711 | must contain a vendor-specific implementation of this function. |
||
712 | |||
713 | */ |
||
714 | __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks) |
||
715 | { |
||
716 | if ((ticks - 1UL) > SysTick_LOAD_RELOAD_Msk) { return (1UL); } /* Reload value impossible */ |
||
717 | |||
718 | SysTick->LOAD = (uint32_t)(ticks - 1UL); /* set reload register */ |
||
719 | NVIC_SetPriority (SysTick_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL); /* set Priority for Systick Interrupt */ |
||
720 | SysTick->VAL = 0UL; /* Load the SysTick Counter Value */ |
||
721 | SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | |
||
722 | SysTick_CTRL_TICKINT_Msk | |
||
723 | SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */ |
||
724 | return (0UL); /* Function successful */ |
||
725 | } |
||
726 | |||
727 | #endif |
||
728 | |||
729 | /*@} end of CMSIS_Core_SysTickFunctions */ |
||
730 | |||
731 | |||
732 | |||
733 | |||
734 | #ifdef __cplusplus |
||
735 | } |
||
736 | #endif |
||
737 | |||
738 | #endif /* __CORE_CM0_H_DEPENDANT */ |
||
739 | |||
740 | #endif /* __CMSIS_GENERIC */ |