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core_sc000.h

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00001 /**************************************************************************//**
00002  * @file     core_sc000.h
00003  * @brief    CMSIS SC000 Core Peripheral Access Layer Header File
00004  * @version  V4.00
00005  * @date     22. August 2014
00006  *
00007  * @note
00008  *
00009  ******************************************************************************/
00010 /* Copyright (c) 2009 - 2014 ARM LIMITED
00011 
00012    All rights reserved.
00013    Redistribution and use in source and binary forms, with or without
00014    modification, are permitted provided that the following conditions are met:
00015    - Redistributions of source code must retain the above copyright
00016      notice, this list of conditions and the following disclaimer.
00017    - Redistributions in binary form must reproduce the above copyright
00018      notice, this list of conditions and the following disclaimer in the
00019      documentation and/or other materials provided with the distribution.
00020    - Neither the name of ARM nor the names of its contributors may be used
00021      to endorse or promote products derived from this software without
00022      specific prior written permission.
00023    *
00024    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00025    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00026    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00027    ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
00028    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00029    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00030    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00031    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00032    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00033    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00034    POSSIBILITY OF SUCH DAMAGE.
00035    ---------------------------------------------------------------------------*/
00036 
00037 
00038 #if defined ( __ICCARM__ )
00039  #pragma system_include  /* treat file as system include file for MISRA check */
00040 #endif
00041 
00042 #ifndef __CORE_SC000_H_GENERIC
00043 #define __CORE_SC000_H_GENERIC
00044 
00045 #ifdef __cplusplus
00046  extern "C" {
00047 #endif
00048 
00049 /** \page CMSIS_MISRA_Exceptions  MISRA-C:2004 Compliance Exceptions
00050   CMSIS violates the following MISRA-C:2004 rules:
00051 
00052    \li Required Rule 8.5, object/function definition in header file.<br>
00053      Function definitions in header files are used to allow 'inlining'.
00054 
00055    \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
00056      Unions are used for effective representation of core registers.
00057 
00058    \li Advisory Rule 19.7, Function-like macro defined.<br>
00059      Function-like macros are used to allow more efficient code.
00060  */
00061 
00062 
00063 /*******************************************************************************
00064  *                 CMSIS definitions
00065  ******************************************************************************/
00066 /** \ingroup SC000
00067   @{
00068  */
00069 
00070 /*  CMSIS SC000 definitions */
00071 #define __SC000_CMSIS_VERSION_MAIN  (0x04)                                   /*!< [31:16] CMSIS HAL main version */
00072 #define __SC000_CMSIS_VERSION_SUB   (0x00)                                   /*!< [15:0]  CMSIS HAL sub version  */
00073 #define __SC000_CMSIS_VERSION       ((__SC000_CMSIS_VERSION_MAIN << 16) | \
00074                                       __SC000_CMSIS_VERSION_SUB          )   /*!< CMSIS HAL version number       */
00075 
00076 #define __CORTEX_SC                 (000)                                       /*!< Cortex secure core             */
00077 
00078 
00079 #if   defined ( __CC_ARM )
00080   #define __ASM            __asm                                      /*!< asm keyword for ARM Compiler          */
00081   #define __INLINE         __inline                                   /*!< inline keyword for ARM Compiler       */
00082   #define __STATIC_INLINE  static __inline
00083 
00084 #elif defined ( __GNUC__ )
00085   #define __ASM            __asm                                      /*!< asm keyword for GNU Compiler          */
00086   #define __INLINE         inline                                     /*!< inline keyword for GNU Compiler       */
00087   #define __STATIC_INLINE  static inline
00088 
00089 #elif defined ( __ICCARM__ )
00090   #define __ASM            __asm                                      /*!< asm keyword for IAR Compiler          */
00091   #define __INLINE         inline                                     /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
00092   #define __STATIC_INLINE  static inline
00093 
00094 #elif defined ( __TMS470__ )
00095   #define __ASM            __asm                                      /*!< asm keyword for TI CCS Compiler       */
00096   #define __STATIC_INLINE  static inline
00097 
00098 #elif defined ( __TASKING__ )
00099   #define __ASM            __asm                                      /*!< asm keyword for TASKING Compiler      */
00100   #define __INLINE         inline                                     /*!< inline keyword for TASKING Compiler   */
00101   #define __STATIC_INLINE  static inline
00102 
00103 #elif defined ( __CSMC__ )
00104   #define __packed
00105   #define __ASM            _asm                                      /*!< asm keyword for COSMIC Compiler      */
00106   #define __INLINE         inline                                    /*use -pc99 on compile line !< inline keyword for COSMIC Compiler   */
00107   #define __STATIC_INLINE  static inline
00108 
00109 #endif
00110 
00111 /** __FPU_USED indicates whether an FPU is used or not.
00112     This core does not support an FPU at all
00113 */
00114 #define __FPU_USED       0
00115 
00116 #if defined ( __CC_ARM )
00117   #if defined __TARGET_FPU_VFP
00118     #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00119   #endif
00120 
00121 #elif defined ( __GNUC__ )
00122   #if defined (__VFP_FP__) && !defined(__SOFTFP__)
00123     #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00124   #endif
00125 
00126 #elif defined ( __ICCARM__ )
00127   #if defined __ARMVFP__
00128     #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00129   #endif
00130 
00131 #elif defined ( __TMS470__ )
00132   #if defined __TI__VFP_SUPPORT____
00133     #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00134   #endif
00135 
00136 #elif defined ( __TASKING__ )
00137   #if defined __FPU_VFP__
00138     #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00139   #endif
00140 
00141 #elif defined ( __CSMC__ )      /* Cosmic */
00142   #if ( __CSMC__ & 0x400)       // FPU present for parser
00143     #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
00144   #endif
00145 #endif
00146 
00147 #include <stdint.h>                      /* standard types definitions                      */
00148 #include <core_cmInstr.h>                /* Core Instruction Access                         */
00149 #include <core_cmFunc.h>                 /* Core Function Access                            */
00150 
00151 #ifdef __cplusplus
00152 }
00153 #endif
00154 
00155 #endif /* __CORE_SC000_H_GENERIC */
00156 
00157 #ifndef __CMSIS_GENERIC
00158 
00159 #ifndef __CORE_SC000_H_DEPENDANT
00160 #define __CORE_SC000_H_DEPENDANT
00161 
00162 #ifdef __cplusplus
00163  extern "C" {
00164 #endif
00165 
00166 /* check device defines and use defaults */
00167 #if defined __CHECK_DEVICE_DEFINES
00168   #ifndef __SC000_REV
00169     #define __SC000_REV             0x0000
00170     #warning "__SC000_REV not defined in device header file; using default!"
00171   #endif
00172 
00173   #ifndef __MPU_PRESENT
00174     #define __MPU_PRESENT             0
00175     #warning "__MPU_PRESENT not defined in device header file; using default!"
00176   #endif
00177 
00178   #ifndef __NVIC_PRIO_BITS
00179     #define __NVIC_PRIO_BITS          2
00180     #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
00181   #endif
00182 
00183   #ifndef __Vendor_SysTickConfig
00184     #define __Vendor_SysTickConfig    0
00185     #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
00186   #endif
00187 #endif
00188 
00189 /* IO definitions (access restrictions to peripheral registers) */
00190 /**
00191     \defgroup CMSIS_glob_defs CMSIS Global Defines
00192 
00193     <strong>IO Type Qualifiers</strong> are used
00194     \li to specify the access to peripheral variables.
00195     \li for automatic generation of peripheral register debug information.
00196 */
00197 #ifdef __cplusplus
00198   #define   __I     volatile             /*!< Defines 'read only' permissions                 */
00199 #else
00200   #define   __I     volatile const       /*!< Defines 'read only' permissions                 */
00201 #endif
00202 #define     __O     volatile             /*!< Defines 'write only' permissions                */
00203 #define     __IO    volatile             /*!< Defines 'read / write' permissions              */
00204 
00205 /*@} end of group SC000 */
00206 
00207 
00208 
00209 /*******************************************************************************
00210  *                 Register Abstraction
00211   Core Register contain:
00212   - Core Register
00213   - Core NVIC Register
00214   - Core SCB Register
00215   - Core SysTick Register
00216   - Core MPU Register
00217  ******************************************************************************/
00218 /** \defgroup CMSIS_core_register Defines and Type Definitions
00219     \brief Type definitions and defines for Cortex-M processor based devices.
00220 */
00221 
00222 /** \ingroup    CMSIS_core_register
00223     \defgroup   CMSIS_CORE  Status and Control Registers
00224     \brief  Core Register type definitions.
00225   @{
00226  */
00227 
00228 /** \brief  Union type to access the Application Program Status Register (APSR).
00229  */
00230 typedef union
00231 {
00232   struct
00233   {
00234 #if (__CORTEX_M != 0x04)
00235     uint32_t _reserved0:27;              /*!< bit:  0..26  Reserved                           */
00236 #else
00237     uint32_t _reserved0:16;              /*!< bit:  0..15  Reserved                           */
00238     uint32_t GE:4;                       /*!< bit: 16..19  Greater than or Equal flags        */
00239     uint32_t _reserved1:7;               /*!< bit: 20..26  Reserved                           */
00240 #endif
00241     uint32_t Q:1;                        /*!< bit:     27  Saturation condition flag          */
00242     uint32_t V:1;                        /*!< bit:     28  Overflow condition code flag       */
00243     uint32_t C:1;                        /*!< bit:     29  Carry condition code flag          */
00244     uint32_t Z:1;                        /*!< bit:     30  Zero condition code flag           */
00245     uint32_t N:1;                        /*!< bit:     31  Negative condition code flag       */
00246   } b;                                   /*!< Structure used for bit  access                  */
00247   uint32_t w;                            /*!< Type      used for word access                  */
00248 } APSR_Type;
00249 
00250 
00251 /** \brief  Union type to access the Interrupt Program Status Register (IPSR).
00252  */
00253 typedef union
00254 {
00255   struct
00256   {
00257     uint32_t ISR:9;                      /*!< bit:  0.. 8  Exception number                   */
00258     uint32_t _reserved0:23;              /*!< bit:  9..31  Reserved                           */
00259   } b;                                   /*!< Structure used for bit  access                  */
00260   uint32_t w;                            /*!< Type      used for word access                  */
00261 } IPSR_Type;
00262 
00263 
00264 /** \brief  Union type to access the Special-Purpose Program Status Registers (xPSR).
00265  */
00266 typedef union
00267 {
00268   struct
00269   {
00270     uint32_t ISR:9;                      /*!< bit:  0.. 8  Exception number                   */
00271 #if (__CORTEX_M != 0x04)
00272     uint32_t _reserved0:15;              /*!< bit:  9..23  Reserved                           */
00273 #else
00274     uint32_t _reserved0:7;               /*!< bit:  9..15  Reserved                           */
00275     uint32_t GE:4;                       /*!< bit: 16..19  Greater than or Equal flags        */
00276     uint32_t _reserved1:4;               /*!< bit: 20..23  Reserved                           */
00277 #endif
00278     uint32_t T:1;                        /*!< bit:     24  Thumb bit        (read 0)          */
00279     uint32_t IT:2;                       /*!< bit: 25..26  saved IT state   (read 0)          */
00280     uint32_t Q:1;                        /*!< bit:     27  Saturation condition flag          */
00281     uint32_t V:1;                        /*!< bit:     28  Overflow condition code flag       */
00282     uint32_t C:1;                        /*!< bit:     29  Carry condition code flag          */
00283     uint32_t Z:1;                        /*!< bit:     30  Zero condition code flag           */
00284     uint32_t N:1;                        /*!< bit:     31  Negative condition code flag       */
00285   } b;                                   /*!< Structure used for bit  access                  */
00286   uint32_t w;                            /*!< Type      used for word access                  */
00287 } xPSR_Type;
00288 
00289 
00290 /** \brief  Union type to access the Control Registers (CONTROL).
00291  */
00292 typedef union
00293 {
00294   struct
00295   {
00296     uint32_t nPRIV:1;                    /*!< bit:      0  Execution privilege in Thread mode */
00297     uint32_t SPSEL:1;                    /*!< bit:      1  Stack to be used                   */
00298     uint32_t FPCA:1;                     /*!< bit:      2  FP extension active flag           */
00299     uint32_t _reserved0:29;              /*!< bit:  3..31  Reserved                           */
00300   } b;                                   /*!< Structure used for bit  access                  */
00301   uint32_t w;                            /*!< Type      used for word access                  */
00302 } CONTROL_Type;
00303 
00304 /*@} end of group CMSIS_CORE */
00305 
00306 
00307 /** \ingroup    CMSIS_core_register
00308     \defgroup   CMSIS_NVIC  Nested Vectored Interrupt Controller (NVIC)
00309     \brief      Type definitions for the NVIC Registers
00310   @{
00311  */
00312 
00313 /** \brief  Structure type to access the Nested Vectored Interrupt Controller (NVIC).
00314  */
00315 typedef struct
00316 {
00317   __IO uint32_t ISER[1];                 /*!< Offset: 0x000 (R/W)  Interrupt Set Enable Register           */
00318        uint32_t RESERVED0[31];
00319   __IO uint32_t ICER[1];                 /*!< Offset: 0x080 (R/W)  Interrupt Clear Enable Register          */
00320        uint32_t RSERVED1[31];
00321   __IO uint32_t ISPR[1];                 /*!< Offset: 0x100 (R/W)  Interrupt Set Pending Register           */
00322        uint32_t RESERVED2[31];
00323   __IO uint32_t ICPR[1];                 /*!< Offset: 0x180 (R/W)  Interrupt Clear Pending Register         */
00324        uint32_t RESERVED3[31];
00325        uint32_t RESERVED4[64];
00326   __IO uint32_t IP[8];                   /*!< Offset: 0x300 (R/W)  Interrupt Priority Register              */
00327 }  NVIC_Type;
00328 
00329 /*@} end of group CMSIS_NVIC */
00330 
00331 
00332 /** \ingroup  CMSIS_core_register
00333     \defgroup CMSIS_SCB     System Control Block (SCB)
00334     \brief      Type definitions for the System Control Block Registers
00335   @{
00336  */
00337 
00338 /** \brief  Structure type to access the System Control Block (SCB).
00339  */
00340 typedef struct
00341 {
00342   __I  uint32_t CPUID;                   /*!< Offset: 0x000 (R/ )  CPUID Base Register                                   */
00343   __IO uint32_t ICSR;                    /*!< Offset: 0x004 (R/W)  Interrupt Control and State Register                  */
00344   __IO uint32_t VTOR;                    /*!< Offset: 0x008 (R/W)  Vector Table Offset Register                          */
00345   __IO uint32_t AIRCR;                   /*!< Offset: 0x00C (R/W)  Application Interrupt and Reset Control Register      */
00346   __IO uint32_t SCR;                     /*!< Offset: 0x010 (R/W)  System Control Register                               */
00347   __IO uint32_t CCR;                     /*!< Offset: 0x014 (R/W)  Configuration Control Register                        */
00348        uint32_t RESERVED0[1];
00349   __IO uint32_t SHP[2];                  /*!< Offset: 0x01C (R/W)  System Handlers Priority Registers. [0] is RESERVED   */
00350   __IO uint32_t SHCSR;                   /*!< Offset: 0x024 (R/W)  System Handler Control and State Register             */
00351        uint32_t RESERVED1[154];
00352   __IO uint32_t SFCR;                    /*!< Offset: 0x290 (R/W)  Security Features Register                            */
00353 } SCB_Type;
00354 
00355 /* SCB CPUID Register Definitions */
00356 #define SCB_CPUID_IMPLEMENTER_Pos          24                                             /*!< SCB CPUID: IMPLEMENTER Position */
00357 #define SCB_CPUID_IMPLEMENTER_Msk          (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos)          /*!< SCB CPUID: IMPLEMENTER Mask */
00358 
00359 #define SCB_CPUID_VARIANT_Pos              20                                             /*!< SCB CPUID: VARIANT Position */
00360 #define SCB_CPUID_VARIANT_Msk              (0xFUL << SCB_CPUID_VARIANT_Pos)               /*!< SCB CPUID: VARIANT Mask */
00361 
00362 #define SCB_CPUID_ARCHITECTURE_Pos         16                                             /*!< SCB CPUID: ARCHITECTURE Position */
00363 #define SCB_CPUID_ARCHITECTURE_Msk         (0xFUL << SCB_CPUID_ARCHITECTURE_Pos)          /*!< SCB CPUID: ARCHITECTURE Mask */
00364 
00365 #define SCB_CPUID_PARTNO_Pos                4                                             /*!< SCB CPUID: PARTNO Position */
00366 #define SCB_CPUID_PARTNO_Msk               (0xFFFUL << SCB_CPUID_PARTNO_Pos)              /*!< SCB CPUID: PARTNO Mask */
00367 
00368 #define SCB_CPUID_REVISION_Pos              0                                             /*!< SCB CPUID: REVISION Position */
00369 #define SCB_CPUID_REVISION_Msk             (0xFUL << SCB_CPUID_REVISION_Pos)              /*!< SCB CPUID: REVISION Mask */
00370 
00371 /* SCB Interrupt Control State Register Definitions */
00372 #define SCB_ICSR_NMIPENDSET_Pos            31                                             /*!< SCB ICSR: NMIPENDSET Position */
00373 #define SCB_ICSR_NMIPENDSET_Msk            (1UL << SCB_ICSR_NMIPENDSET_Pos)               /*!< SCB ICSR: NMIPENDSET Mask */
00374 
00375 #define SCB_ICSR_PENDSVSET_Pos             28                                             /*!< SCB ICSR: PENDSVSET Position */
00376 #define SCB_ICSR_PENDSVSET_Msk             (1UL << SCB_ICSR_PENDSVSET_Pos)                /*!< SCB ICSR: PENDSVSET Mask */
00377 
00378 #define SCB_ICSR_PENDSVCLR_Pos             27                                             /*!< SCB ICSR: PENDSVCLR Position */
00379 #define SCB_ICSR_PENDSVCLR_Msk             (1UL << SCB_ICSR_PENDSVCLR_Pos)                /*!< SCB ICSR: PENDSVCLR Mask */
00380 
00381 #define SCB_ICSR_PENDSTSET_Pos             26                                             /*!< SCB ICSR: PENDSTSET Position */
00382 #define SCB_ICSR_PENDSTSET_Msk             (1UL << SCB_ICSR_PENDSTSET_Pos)                /*!< SCB ICSR: PENDSTSET Mask */
00383 
00384 #define SCB_ICSR_PENDSTCLR_Pos             25                                             /*!< SCB ICSR: PENDSTCLR Position */
00385 #define SCB_ICSR_PENDSTCLR_Msk             (1UL << SCB_ICSR_PENDSTCLR_Pos)                /*!< SCB ICSR: PENDSTCLR Mask */
00386 
00387 #define SCB_ICSR_ISRPREEMPT_Pos            23                                             /*!< SCB ICSR: ISRPREEMPT Position */
00388 #define SCB_ICSR_ISRPREEMPT_Msk            (1UL << SCB_ICSR_ISRPREEMPT_Pos)               /*!< SCB ICSR: ISRPREEMPT Mask */
00389 
00390 #define SCB_ICSR_ISRPENDING_Pos            22                                             /*!< SCB ICSR: ISRPENDING Position */
00391 #define SCB_ICSR_ISRPENDING_Msk            (1UL << SCB_ICSR_ISRPENDING_Pos)               /*!< SCB ICSR: ISRPENDING Mask */
00392 
00393 #define SCB_ICSR_VECTPENDING_Pos           12                                             /*!< SCB ICSR: VECTPENDING Position */
00394 #define SCB_ICSR_VECTPENDING_Msk           (0x1FFUL << SCB_ICSR_VECTPENDING_Pos)          /*!< SCB ICSR: VECTPENDING Mask */
00395 
00396 #define SCB_ICSR_VECTACTIVE_Pos             0                                             /*!< SCB ICSR: VECTACTIVE Position */
00397 #define SCB_ICSR_VECTACTIVE_Msk            (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos)           /*!< SCB ICSR: VECTACTIVE Mask */
00398 
00399 /* SCB Interrupt Control State Register Definitions */
00400 #define SCB_VTOR_TBLOFF_Pos                 7                                             /*!< SCB VTOR: TBLOFF Position */
00401 #define SCB_VTOR_TBLOFF_Msk                (0x1FFFFFFUL << SCB_VTOR_TBLOFF_Pos)           /*!< SCB VTOR: TBLOFF Mask */
00402 
00403 /* SCB Application Interrupt and Reset Control Register Definitions */
00404 #define SCB_AIRCR_VECTKEY_Pos              16                                             /*!< SCB AIRCR: VECTKEY Position */
00405 #define SCB_AIRCR_VECTKEY_Msk              (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos)            /*!< SCB AIRCR: VECTKEY Mask */
00406 
00407 #define SCB_AIRCR_VECTKEYSTAT_Pos          16                                             /*!< SCB AIRCR: VECTKEYSTAT Position */
00408 #define SCB_AIRCR_VECTKEYSTAT_Msk          (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos)        /*!< SCB AIRCR: VECTKEYSTAT Mask */
00409 
00410 #define SCB_AIRCR_ENDIANESS_Pos            15                                             /*!< SCB AIRCR: ENDIANESS Position */
00411 #define SCB_AIRCR_ENDIANESS_Msk            (1UL << SCB_AIRCR_ENDIANESS_Pos)               /*!< SCB AIRCR: ENDIANESS Mask */
00412 
00413 #define SCB_AIRCR_SYSRESETREQ_Pos           2                                             /*!< SCB AIRCR: SYSRESETREQ Position */
00414 #define SCB_AIRCR_SYSRESETREQ_Msk          (1UL << SCB_AIRCR_SYSRESETREQ_Pos)             /*!< SCB AIRCR: SYSRESETREQ Mask */
00415 
00416 #define SCB_AIRCR_VECTCLRACTIVE_Pos         1                                             /*!< SCB AIRCR: VECTCLRACTIVE Position */
00417 #define SCB_AIRCR_VECTCLRACTIVE_Msk        (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos)           /*!< SCB AIRCR: VECTCLRACTIVE Mask */
00418 
00419 /* SCB System Control Register Definitions */
00420 #define SCB_SCR_SEVONPEND_Pos               4                                             /*!< SCB SCR: SEVONPEND Position */
00421 #define SCB_SCR_SEVONPEND_Msk              (1UL << SCB_SCR_SEVONPEND_Pos)                 /*!< SCB SCR: SEVONPEND Mask */
00422 
00423 #define SCB_SCR_SLEEPDEEP_Pos               2                                             /*!< SCB SCR: SLEEPDEEP Position */
00424 #define SCB_SCR_SLEEPDEEP_Msk              (1UL << SCB_SCR_SLEEPDEEP_Pos)                 /*!< SCB SCR: SLEEPDEEP Mask */
00425 
00426 #define SCB_SCR_SLEEPONEXIT_Pos             1                                             /*!< SCB SCR: SLEEPONEXIT Position */
00427 #define SCB_SCR_SLEEPONEXIT_Msk            (1UL << SCB_SCR_SLEEPONEXIT_Pos)               /*!< SCB SCR: SLEEPONEXIT Mask */
00428 
00429 /* SCB Configuration Control Register Definitions */
00430 #define SCB_CCR_STKALIGN_Pos                9                                             /*!< SCB CCR: STKALIGN Position */
00431 #define SCB_CCR_STKALIGN_Msk               (1UL << SCB_CCR_STKALIGN_Pos)                  /*!< SCB CCR: STKALIGN Mask */
00432 
00433 #define SCB_CCR_UNALIGN_TRP_Pos             3                                             /*!< SCB CCR: UNALIGN_TRP Position */
00434 #define SCB_CCR_UNALIGN_TRP_Msk            (1UL << SCB_CCR_UNALIGN_TRP_Pos)               /*!< SCB CCR: UNALIGN_TRP Mask */
00435 
00436 /* SCB System Handler Control and State Register Definitions */
00437 #define SCB_SHCSR_SVCALLPENDED_Pos         15                                             /*!< SCB SHCSR: SVCALLPENDED Position */
00438 #define SCB_SHCSR_SVCALLPENDED_Msk         (1UL << SCB_SHCSR_SVCALLPENDED_Pos)            /*!< SCB SHCSR: SVCALLPENDED Mask */
00439 
00440 /* SCB Security Features Register Definitions */
00441 #define SCB_SFCR_UNIBRTIMING_Pos            0                                             /*!< SCB SFCR: UNIBRTIMING Position */
00442 #define SCB_SFCR_UNIBRTIMING_Msk           (1UL << SCB_SHCSR_SVCALLPENDED_Pos)            /*!< SCB SFCR: UNIBRTIMING Mask */
00443 
00444 #define SCB_SFCR_SECKEY_Pos                16                                             /*!< SCB SFCR: SECKEY Position */
00445 #define SCB_SFCR_SECKEY_Msk               (0xFFFFUL << SCB_SHCSR_SVCALLPENDED_Pos)        /*!< SCB SFCR: SECKEY Mask */
00446 
00447 /*@} end of group CMSIS_SCB */
00448 
00449 
00450 /** \ingroup  CMSIS_core_register
00451     \defgroup CMSIS_SCnSCB System Controls not in SCB (SCnSCB)
00452     \brief      Type definitions for the System Control and ID Register not in the SCB
00453   @{
00454  */
00455 
00456 /** \brief  Structure type to access the System Control and ID Register not in the SCB.
00457  */
00458 typedef struct
00459 {
00460        uint32_t RESERVED0[2];
00461   __IO uint32_t ACTLR;                   /*!< Offset: 0x008 (R/W)  Auxiliary Control Register      */
00462 } SCnSCB_Type;
00463 
00464 /* Auxiliary Control Register Definitions */
00465 #define SCnSCB_ACTLR_DISMCYCINT_Pos         0                                          /*!< ACTLR: DISMCYCINT Position */
00466 #define SCnSCB_ACTLR_DISMCYCINT_Msk        (1UL << SCnSCB_ACTLR_DISMCYCINT_Pos)        /*!< ACTLR: DISMCYCINT Mask */
00467 
00468 /*@} end of group CMSIS_SCnotSCB */
00469 
00470 
00471 /** \ingroup  CMSIS_core_register
00472     \defgroup CMSIS_SysTick     System Tick Timer (SysTick)
00473     \brief      Type definitions for the System Timer Registers.
00474   @{
00475  */
00476 
00477 /** \brief  Structure type to access the System Timer (SysTick).
00478  */
00479 typedef struct
00480 {
00481   __IO uint32_t CTRL;                    /*!< Offset: 0x000 (R/W)  SysTick Control and Status Register */
00482   __IO uint32_t LOAD;                    /*!< Offset: 0x004 (R/W)  SysTick Reload Value Register       */
00483   __IO uint32_t VAL;                     /*!< Offset: 0x008 (R/W)  SysTick Current Value Register      */
00484   __I  uint32_t CALIB;                   /*!< Offset: 0x00C (R/ )  SysTick Calibration Register        */
00485 } SysTick_Type;
00486 
00487 /* SysTick Control / Status Register Definitions */
00488 #define SysTick_CTRL_COUNTFLAG_Pos         16                                             /*!< SysTick CTRL: COUNTFLAG Position */
00489 #define SysTick_CTRL_COUNTFLAG_Msk         (1UL << SysTick_CTRL_COUNTFLAG_Pos)            /*!< SysTick CTRL: COUNTFLAG Mask */
00490 
00491 #define SysTick_CTRL_CLKSOURCE_Pos          2                                             /*!< SysTick CTRL: CLKSOURCE Position */
00492 #define SysTick_CTRL_CLKSOURCE_Msk         (1UL << SysTick_CTRL_CLKSOURCE_Pos)            /*!< SysTick CTRL: CLKSOURCE Mask */
00493 
00494 #define SysTick_CTRL_TICKINT_Pos            1                                             /*!< SysTick CTRL: TICKINT Position */
00495 #define SysTick_CTRL_TICKINT_Msk           (1UL << SysTick_CTRL_TICKINT_Pos)              /*!< SysTick CTRL: TICKINT Mask */
00496 
00497 #define SysTick_CTRL_ENABLE_Pos             0                                             /*!< SysTick CTRL: ENABLE Position */
00498 #define SysTick_CTRL_ENABLE_Msk            (1UL << SysTick_CTRL_ENABLE_Pos)               /*!< SysTick CTRL: ENABLE Mask */
00499 
00500 /* SysTick Reload Register Definitions */
00501 #define SysTick_LOAD_RELOAD_Pos             0                                             /*!< SysTick LOAD: RELOAD Position */
00502 #define SysTick_LOAD_RELOAD_Msk            (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos)        /*!< SysTick LOAD: RELOAD Mask */
00503 
00504 /* SysTick Current Register Definitions */
00505 #define SysTick_VAL_CURRENT_Pos             0                                             /*!< SysTick VAL: CURRENT Position */
00506 #define SysTick_VAL_CURRENT_Msk            (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos)        /*!< SysTick VAL: CURRENT Mask */
00507 
00508 /* SysTick Calibration Register Definitions */
00509 #define SysTick_CALIB_NOREF_Pos            31                                             /*!< SysTick CALIB: NOREF Position */
00510 #define SysTick_CALIB_NOREF_Msk            (1UL << SysTick_CALIB_NOREF_Pos)               /*!< SysTick CALIB: NOREF Mask */
00511 
00512 #define SysTick_CALIB_SKEW_Pos             30                                             /*!< SysTick CALIB: SKEW Position */
00513 #define SysTick_CALIB_SKEW_Msk             (1UL << SysTick_CALIB_SKEW_Pos)                /*!< SysTick CALIB: SKEW Mask */
00514 
00515 #define SysTick_CALIB_TENMS_Pos             0                                             /*!< SysTick CALIB: TENMS Position */
00516 #define SysTick_CALIB_TENMS_Msk            (0xFFFFFFUL << SysTick_CALIB_TENMS_Pos)        /*!< SysTick CALIB: TENMS Mask */
00517 
00518 /*@} end of group CMSIS_SysTick */
00519 
00520 #if (__MPU_PRESENT == 1)
00521 /** \ingroup  CMSIS_core_register
00522     \defgroup CMSIS_MPU     Memory Protection Unit (MPU)
00523     \brief      Type definitions for the Memory Protection Unit (MPU)
00524   @{
00525  */
00526 
00527 /** \brief  Structure type to access the Memory Protection Unit (MPU).
00528  */
00529 typedef struct
00530 {
00531   __I  uint32_t TYPE;                    /*!< Offset: 0x000 (R/ )  MPU Type Register                              */
00532   __IO uint32_t CTRL;                    /*!< Offset: 0x004 (R/W)  MPU Control Register                           */
00533   __IO uint32_t RNR;                     /*!< Offset: 0x008 (R/W)  MPU Region RNRber Register                     */
00534   __IO uint32_t RBAR;                    /*!< Offset: 0x00C (R/W)  MPU Region Base Address Register               */
00535   __IO uint32_t RASR;                    /*!< Offset: 0x010 (R/W)  MPU Region Attribute and Size Register         */
00536 } MPU_Type;
00537 
00538 /* MPU Type Register */
00539 #define MPU_TYPE_IREGION_Pos               16                                             /*!< MPU TYPE: IREGION Position */
00540 #define MPU_TYPE_IREGION_Msk               (0xFFUL << MPU_TYPE_IREGION_Pos)               /*!< MPU TYPE: IREGION Mask */
00541 
00542 #define MPU_TYPE_DREGION_Pos                8                                             /*!< MPU TYPE: DREGION Position */
00543 #define MPU_TYPE_DREGION_Msk               (0xFFUL << MPU_TYPE_DREGION_Pos)               /*!< MPU TYPE: DREGION Mask */
00544 
00545 #define MPU_TYPE_SEPARATE_Pos               0                                             /*!< MPU TYPE: SEPARATE Position */
00546 #define MPU_TYPE_SEPARATE_Msk              (1UL << MPU_TYPE_SEPARATE_Pos)                 /*!< MPU TYPE: SEPARATE Mask */
00547 
00548 /* MPU Control Register */
00549 #define MPU_CTRL_PRIVDEFENA_Pos             2                                             /*!< MPU CTRL: PRIVDEFENA Position */
00550 #define MPU_CTRL_PRIVDEFENA_Msk            (1UL << MPU_CTRL_PRIVDEFENA_Pos)               /*!< MPU CTRL: PRIVDEFENA Mask */
00551 
00552 #define MPU_CTRL_HFNMIENA_Pos               1                                             /*!< MPU CTRL: HFNMIENA Position */
00553 #define MPU_CTRL_HFNMIENA_Msk              (1UL << MPU_CTRL_HFNMIENA_Pos)                 /*!< MPU CTRL: HFNMIENA Mask */
00554 
00555 #define MPU_CTRL_ENABLE_Pos                 0                                             /*!< MPU CTRL: ENABLE Position */
00556 #define MPU_CTRL_ENABLE_Msk                (1UL << MPU_CTRL_ENABLE_Pos)                   /*!< MPU CTRL: ENABLE Mask */
00557 
00558 /* MPU Region Number Register */
00559 #define MPU_RNR_REGION_Pos                  0                                             /*!< MPU RNR: REGION Position */
00560 #define MPU_RNR_REGION_Msk                 (0xFFUL << MPU_RNR_REGION_Pos)                 /*!< MPU RNR: REGION Mask */
00561 
00562 /* MPU Region Base Address Register */
00563 #define MPU_RBAR_ADDR_Pos                   8                                             /*!< MPU RBAR: ADDR Position */
00564 #define MPU_RBAR_ADDR_Msk                  (0xFFFFFFUL << MPU_RBAR_ADDR_Pos)              /*!< MPU RBAR: ADDR Mask */
00565 
00566 #define MPU_RBAR_VALID_Pos                  4                                             /*!< MPU RBAR: VALID Position */
00567 #define MPU_RBAR_VALID_Msk                 (1UL << MPU_RBAR_VALID_Pos)                    /*!< MPU RBAR: VALID Mask */
00568 
00569 #define MPU_RBAR_REGION_Pos                 0                                             /*!< MPU RBAR: REGION Position */
00570 #define MPU_RBAR_REGION_Msk                (0xFUL << MPU_RBAR_REGION_Pos)                 /*!< MPU RBAR: REGION Mask */
00571 
00572 /* MPU Region Attribute and Size Register */
00573 #define MPU_RASR_ATTRS_Pos                 16                                             /*!< MPU RASR: MPU Region Attribute field Position */
00574 #define MPU_RASR_ATTRS_Msk                 (0xFFFFUL << MPU_RASR_ATTRS_Pos)               /*!< MPU RASR: MPU Region Attribute field Mask */
00575 
00576 #define MPU_RASR_XN_Pos                    28                                             /*!< MPU RASR: ATTRS.XN Position */
00577 #define MPU_RASR_XN_Msk                    (1UL << MPU_RASR_XN_Pos)                       /*!< MPU RASR: ATTRS.XN Mask */
00578 
00579 #define MPU_RASR_AP_Pos                    24                                             /*!< MPU RASR: ATTRS.AP Position */
00580 #define MPU_RASR_AP_Msk                    (0x7UL << MPU_RASR_AP_Pos)                     /*!< MPU RASR: ATTRS.AP Mask */
00581 
00582 #define MPU_RASR_TEX_Pos                   19                                             /*!< MPU RASR: ATTRS.TEX Position */
00583 #define MPU_RASR_TEX_Msk                   (0x7UL << MPU_RASR_TEX_Pos)                    /*!< MPU RASR: ATTRS.TEX Mask */
00584 
00585 #define MPU_RASR_S_Pos                     18                                             /*!< MPU RASR: ATTRS.S Position */
00586 #define MPU_RASR_S_Msk                     (1UL << MPU_RASR_S_Pos)                        /*!< MPU RASR: ATTRS.S Mask */
00587 
00588 #define MPU_RASR_C_Pos                     17                                             /*!< MPU RASR: ATTRS.C Position */
00589 #define MPU_RASR_C_Msk                     (1UL << MPU_RASR_C_Pos)                        /*!< MPU RASR: ATTRS.C Mask */
00590 
00591 #define MPU_RASR_B_Pos                     16                                             /*!< MPU RASR: ATTRS.B Position */
00592 #define MPU_RASR_B_Msk                     (1UL << MPU_RASR_B_Pos)                        /*!< MPU RASR: ATTRS.B Mask */
00593 
00594 #define MPU_RASR_SRD_Pos                    8                                             /*!< MPU RASR: Sub-Region Disable Position */
00595 #define MPU_RASR_SRD_Msk                   (0xFFUL << MPU_RASR_SRD_Pos)                   /*!< MPU RASR: Sub-Region Disable Mask */
00596 
00597 #define MPU_RASR_SIZE_Pos                   1                                             /*!< MPU RASR: Region Size Field Position */
00598 #define MPU_RASR_SIZE_Msk                  (0x1FUL << MPU_RASR_SIZE_Pos)                  /*!< MPU RASR: Region Size Field Mask */
00599 
00600 #define MPU_RASR_ENABLE_Pos                 0                                             /*!< MPU RASR: Region enable bit Position */
00601 #define MPU_RASR_ENABLE_Msk                (1UL << MPU_RASR_ENABLE_Pos)                   /*!< MPU RASR: Region enable bit Disable Mask */
00602 
00603 /*@} end of group CMSIS_MPU */
00604 #endif
00605 
00606 
00607 /** \ingroup  CMSIS_core_register
00608     \defgroup CMSIS_CoreDebug       Core Debug Registers (CoreDebug)
00609     \brief      SC000 Core Debug Registers (DCB registers, SHCSR, and DFSR)
00610                 are only accessible over DAP and not via processor. Therefore
00611                 they are not covered by the Cortex-M0 header file.
00612   @{
00613  */
00614 /*@} end of group CMSIS_CoreDebug */
00615 
00616 
00617 /** \ingroup    CMSIS_core_register
00618     \defgroup   CMSIS_core_base     Core Definitions
00619     \brief      Definitions for base addresses, unions, and structures.
00620   @{
00621  */
00622 
00623 /* Memory mapping of SC000 Hardware */
00624 #define SCS_BASE            (0xE000E000UL)                            /*!< System Control Space Base Address */
00625 #define SysTick_BASE        (SCS_BASE +  0x0010UL)                    /*!< SysTick Base Address              */
00626 #define NVIC_BASE           (SCS_BASE +  0x0100UL)                    /*!< NVIC Base Address                 */
00627 #define SCB_BASE            (SCS_BASE +  0x0D00UL)                    /*!< System Control Block Base Address */
00628 
00629 #define SCnSCB              ((SCnSCB_Type    *)     SCS_BASE      )   /*!< System control Register not in SCB */
00630 #define SCB                 ((SCB_Type       *)     SCB_BASE      )   /*!< SCB configuration struct           */
00631 #define SysTick             ((SysTick_Type   *)     SysTick_BASE  )   /*!< SysTick configuration struct       */
00632 #define NVIC                ((NVIC_Type      *)     NVIC_BASE     )   /*!< NVIC configuration struct          */
00633 
00634 #if (__MPU_PRESENT == 1)
00635   #define MPU_BASE          (SCS_BASE +  0x0D90UL)                    /*!< Memory Protection Unit             */
00636   #define MPU               ((MPU_Type       *)     MPU_BASE      )   /*!< Memory Protection Unit             */
00637 #endif
00638 
00639 /*@} */
00640 
00641 
00642 
00643 /*******************************************************************************
00644  *                Hardware Abstraction Layer
00645   Core Function Interface contains:
00646   - Core NVIC Functions
00647   - Core SysTick Functions
00648   - Core Register Access Functions
00649  ******************************************************************************/
00650 /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
00651 */
00652 
00653 
00654 
00655 /* ##########################   NVIC functions  #################################### */
00656 /** \ingroup  CMSIS_Core_FunctionInterface
00657     \defgroup CMSIS_Core_NVICFunctions NVIC Functions
00658     \brief      Functions that manage interrupts and exceptions via the NVIC.
00659     @{
00660  */
00661 
00662 /* Interrupt Priorities are WORD accessible only under ARMv6M                   */
00663 /* The following MACROS handle generation of the register offset and byte masks */
00664 #define _BIT_SHIFT(IRQn)         (  (((uint32_t)(IRQn)       )    &  0x03) * 8 )
00665 #define _SHP_IDX(IRQn)           ( ((((uint32_t)(IRQn) & 0x0F)-8) >>    2)     )
00666 #define _IP_IDX(IRQn)            (   ((uint32_t)(IRQn)            >>    2)     )
00667 
00668 
00669 /** \brief  Enable External Interrupt
00670 
00671     The function enables a device-specific interrupt in the NVIC interrupt controller.
00672 
00673     \param [in]      IRQn  External interrupt number. Value cannot be negative.
00674  */
00675 __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
00676 {
00677   NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
00678 }
00679 
00680 
00681 /** \brief  Disable External Interrupt
00682 
00683     The function disables a device-specific interrupt in the NVIC interrupt controller.
00684 
00685     \param [in]      IRQn  External interrupt number. Value cannot be negative.
00686  */
00687 __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
00688 {
00689   NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
00690 }
00691 
00692 
00693 /** \brief  Get Pending Interrupt
00694 
00695     The function reads the pending register in the NVIC and returns the pending bit
00696     for the specified interrupt.
00697 
00698     \param [in]      IRQn  Interrupt number.
00699 
00700     \return             0  Interrupt status is not pending.
00701     \return             1  Interrupt status is pending.
00702  */
00703 __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
00704 {
00705   return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
00706 }
00707 
00708 
00709 /** \brief  Set Pending Interrupt
00710 
00711     The function sets the pending bit of an external interrupt.
00712 
00713     \param [in]      IRQn  Interrupt number. Value cannot be negative.
00714  */
00715 __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
00716 {
00717   NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
00718 }
00719 
00720 
00721 /** \brief  Clear Pending Interrupt
00722 
00723     The function clears the pending bit of an external interrupt.
00724 
00725     \param [in]      IRQn  External interrupt number. Value cannot be negative.
00726  */
00727 __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
00728 {
00729   NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */
00730 }
00731 
00732 
00733 /** \brief  Set Interrupt Priority
00734 
00735     The function sets the priority of an interrupt.
00736 
00737     \note The priority cannot be set for every core interrupt.
00738 
00739     \param [in]      IRQn  Interrupt number.
00740     \param [in]  priority  Priority to set.
00741  */
00742 __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
00743 {
00744   if(IRQn < 0) {
00745     SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
00746         (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
00747   else {
00748     NVIC->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
00749         (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
00750 }
00751 
00752 
00753 /** \brief  Get Interrupt Priority
00754 
00755     The function reads the priority of an interrupt. The interrupt
00756     number can be positive to specify an external (device specific)
00757     interrupt, or negative to specify an internal (core) interrupt.
00758 
00759 
00760     \param [in]   IRQn  Interrupt number.
00761     \return             Interrupt Priority. Value is aligned automatically to the implemented
00762                         priority bits of the microcontroller.
00763  */
00764 __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn)
00765 {
00766 
00767   if(IRQn < 0) {
00768     return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS)));  } /* get priority for Cortex-M0 system interrupts */
00769   else {
00770     return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS)));  } /* get priority for device specific interrupts  */
00771 }
00772 
00773 
00774 /** \brief  System Reset
00775 
00776     The function initiates a system reset request to reset the MCU.
00777  */
00778 __STATIC_INLINE void NVIC_SystemReset(void)
00779 {
00780   __DSB();                                                     /* Ensure all outstanding memory accesses included
00781                                                                   buffered write are completed before reset */
00782   SCB->AIRCR  = ((0x5FA << SCB_AIRCR_VECTKEY_Pos)      |
00783                  SCB_AIRCR_SYSRESETREQ_Msk);
00784   __DSB();                                                     /* Ensure completion of memory access */
00785   while(1);                                                    /* wait until reset */
00786 }
00787 
00788 /*@} end of CMSIS_Core_NVICFunctions */
00789 
00790 
00791 
00792 /* ##################################    SysTick function  ############################################ */
00793 /** \ingroup  CMSIS_Core_FunctionInterface
00794     \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
00795     \brief      Functions that configure the System.
00796   @{
00797  */
00798 
00799 #if (__Vendor_SysTickConfig == 0)
00800 
00801 /** \brief  System Tick Configuration
00802 
00803     The function initializes the System Timer and its interrupt, and starts the System Tick Timer.
00804     Counter is in free running mode to generate periodic interrupts.
00805 
00806     \param [in]  ticks  Number of ticks between two interrupts.
00807 
00808     \return          0  Function succeeded.
00809     \return          1  Function failed.
00810 
00811     \note     When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
00812     function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
00813     must contain a vendor-specific implementation of this function.
00814 
00815  */
00816 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
00817 {
00818   if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk)  return (1);      /* Reload value impossible */
00819 
00820   SysTick->LOAD  = ticks - 1;                                  /* set reload register */
00821   NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1);  /* set Priority for Systick Interrupt */
00822   SysTick->VAL   = 0;                                          /* Load the SysTick Counter Value */
00823   SysTick->CTRL  = SysTick_CTRL_CLKSOURCE_Msk |
00824                    SysTick_CTRL_TICKINT_Msk   |
00825                    SysTick_CTRL_ENABLE_Msk;                    /* Enable SysTick IRQ and SysTick Timer */
00826   return (0);                                                  /* Function successful */
00827 }
00828 
00829 #endif
00830 
00831 /*@} end of CMSIS_Core_SysTickFunctions */
00832 
00833 
00834 
00835 
00836 #ifdef __cplusplus
00837 }
00838 #endif
00839 
00840 #endif /* __CORE_SC000_H_DEPENDANT */
00841 
00842 #endif /* __CMSIS_GENERIC */