1 /**************************************************************************//**
3 * @brief CMSIS Cortex-M0+ Core Peripheral Access Layer Header File
5 * @date 25. February 2013
9 ******************************************************************************/
10 /* Copyright (c) 2009 - 2013 ARM LIMITED
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions are met:
15 - Redistributions of source code must retain the above copyright
16 notice, this list of conditions and the following disclaimer.
17 - Redistributions in binary form must reproduce the above copyright
18 notice, this list of conditions and the following disclaimer in the
19 documentation and/or other materials provided with the distribution.
20 - Neither the name of ARM nor the names of its contributors may be used
21 to endorse or promote products derived from this software without
22 specific prior written permission.
24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 POSSIBILITY OF SUCH DAMAGE.
35 ---------------------------------------------------------------------------*/
38 #if defined ( __ICCARM__ )
39 #pragma system_include /* treat file as system include file for MISRA check */
46 #ifndef __CORE_CM0PLUS_H_GENERIC
47 #define __CORE_CM0PLUS_H_GENERIC
49 /** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
50 CMSIS violates the following MISRA-C:2004 rules:
52 \li Required Rule 8.5, object/function definition in header file.<br>
53 Function definitions in header files are used to allow 'inlining'.
55 \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
56 Unions are used for effective representation of core registers.
58 \li Advisory Rule 19.7, Function-like macro defined.<br>
59 Function-like macros are used to allow more efficient code.
63 /*******************************************************************************
65 ******************************************************************************/
66 /** \ingroup Cortex-M0+
70 /* CMSIS CM0P definitions */
71 #define __CM0PLUS_CMSIS_VERSION_MAIN (0x03) /*!< [31:16] CMSIS HAL main version */
72 #define __CM0PLUS_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */
73 #define __CM0PLUS_CMSIS_VERSION ((__CM0PLUS_CMSIS_VERSION_MAIN << 16) | \
74 __CM0PLUS_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */
76 #define __CORTEX_M (0x00) /*!< Cortex-M Core */
79 #if defined ( __CC_ARM )
80 #define __ASM __asm /*!< asm keyword for ARM Compiler */
81 #define __INLINE __inline /*!< inline keyword for ARM Compiler */
82 #define __STATIC_INLINE static __inline
84 #elif defined ( __ICCARM__ )
85 #define __ASM __asm /*!< asm keyword for IAR Compiler */
86 #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
87 #define __STATIC_INLINE static inline
89 #elif defined ( __GNUC__ )
90 #define __ASM __asm /*!< asm keyword for GNU Compiler */
91 #define __INLINE inline /*!< inline keyword for GNU Compiler */
92 #define __STATIC_INLINE static inline
94 #elif defined ( __TASKING__ )
95 #define __ASM __asm /*!< asm keyword for TASKING Compiler */
96 #define __INLINE inline /*!< inline keyword for TASKING Compiler */
97 #define __STATIC_INLINE static inline
101 /** __FPU_USED indicates whether an FPU is used or not. This core does not support an FPU at all
105 #if defined ( __CC_ARM )
106 #if defined __TARGET_FPU_VFP
107 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
110 #elif defined ( __ICCARM__ )
111 #if defined __ARMVFP__
112 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
115 #elif defined ( __GNUC__ )
116 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
117 #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
120 #elif defined ( __TASKING__ )
121 #if defined __FPU_VFP__
122 #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
126 #include <stdint.h> /* standard types definitions */
127 #include <core_cmInstr.h> /* Core Instruction Access */
128 #include <core_cmFunc.h> /* Core Function Access */
130 #endif /* __CORE_CM0PLUS_H_GENERIC */
132 #ifndef __CMSIS_GENERIC
134 #ifndef __CORE_CM0PLUS_H_DEPENDANT
135 #define __CORE_CM0PLUS_H_DEPENDANT
137 /* check device defines and use defaults */
138 #if defined __CHECK_DEVICE_DEFINES
139 #ifndef __CM0PLUS_REV
140 #define __CM0PLUS_REV 0x0000
141 #warning "__CM0PLUS_REV not defined in device header file; using default!"
144 #ifndef __MPU_PRESENT
145 #define __MPU_PRESENT 0
146 #warning "__MPU_PRESENT not defined in device header file; using default!"
149 #ifndef __VTOR_PRESENT
150 #define __VTOR_PRESENT 0
151 #warning "__VTOR_PRESENT not defined in device header file; using default!"
154 #ifndef __NVIC_PRIO_BITS
155 #define __NVIC_PRIO_BITS 2
156 #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
159 #ifndef __Vendor_SysTickConfig
160 #define __Vendor_SysTickConfig 0
161 #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
165 /* IO definitions (access restrictions to peripheral registers) */
167 \defgroup CMSIS_glob_defs CMSIS Global Defines
169 <strong>IO Type Qualifiers</strong> are used
170 \li to specify the access to peripheral variables.
171 \li for automatic generation of peripheral register debug information.
174 #define __I volatile /*!< Defines 'read only' permissions */
176 #define __I volatile const /*!< Defines 'read only' permissions */
178 #define __O volatile /*!< Defines 'write only' permissions */
179 #define __IO volatile /*!< Defines 'read / write' permissions */
181 /*@} end of group Cortex-M0+ */
185 /*******************************************************************************
186 * Register Abstraction
187 Core Register contain:
191 - Core SysTick Register
193 ******************************************************************************/
194 /** \defgroup CMSIS_core_register Defines and Type Definitions
195 \brief Type definitions and defines for Cortex-M processor based devices.
198 /** \ingroup CMSIS_core_register
199 \defgroup CMSIS_CORE Status and Control Registers
200 \brief Core Register type definitions.
204 /** \brief Union type to access the Application Program Status Register (APSR).
210 #if (__CORTEX_M != 0x04)
211 uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */
213 uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */
214 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
215 uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */
217 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
218 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
219 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
220 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
221 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
222 } b; /*!< Structure used for bit access */
223 uint32_t w; /*!< Type used for word access */
227 /** \brief Union type to access the Interrupt Program Status Register (IPSR).
233 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
234 uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
235 } b; /*!< Structure used for bit access */
236 uint32_t w; /*!< Type used for word access */
240 /** \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
246 uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
247 #if (__CORTEX_M != 0x04)
248 uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
250 uint32_t _reserved0:7; /*!< bit: 9..15 Reserved */
251 uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
252 uint32_t _reserved1:4; /*!< bit: 20..23 Reserved */
254 uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
255 uint32_t IT:2; /*!< bit: 25..26 saved IT state (read 0) */
256 uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
257 uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
258 uint32_t C:1; /*!< bit: 29 Carry condition code flag */
259 uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
260 uint32_t N:1; /*!< bit: 31 Negative condition code flag */
261 } b; /*!< Structure used for bit access */
262 uint32_t w; /*!< Type used for word access */
266 /** \brief Union type to access the Control Registers (CONTROL).
272 uint32_t nPRIV:1; /*!< bit: 0 Execution privilege in Thread mode */
273 uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
274 uint32_t FPCA:1; /*!< bit: 2 FP extension active flag */
275 uint32_t _reserved0:29; /*!< bit: 3..31 Reserved */
276 } b; /*!< Structure used for bit access */
277 uint32_t w; /*!< Type used for word access */
280 /*@} end of group CMSIS_CORE */
283 /** \ingroup CMSIS_core_register
284 \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
285 \brief Type definitions for the NVIC Registers
289 /** \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
293 __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
294 uint32_t RESERVED0[31];
295 __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
296 uint32_t RSERVED1[31];
297 __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
298 uint32_t RESERVED2[31];
299 __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
300 uint32_t RESERVED3[31];
301 uint32_t RESERVED4[64];
302 __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
305 /*@} end of group CMSIS_NVIC */
308 /** \ingroup CMSIS_core_register
309 \defgroup CMSIS_SCB System Control Block (SCB)
310 \brief Type definitions for the System Control Block Registers
314 /** \brief Structure type to access the System Control Block (SCB).
318 __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
319 __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
320 #if (__VTOR_PRESENT == 1)
321 __IO uint32_t VTOR; /*!< Offset: 0x008 (R/W) Vector Table Offset Register */
325 __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
326 __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
327 __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
329 __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
330 __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
333 /* SCB CPUID Register Definitions */
334 #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */
335 #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
337 #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */
338 #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
340 #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */
341 #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
343 #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */
344 #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
346 #define SCB_CPUID_REVISION_Pos 0 /*!< SCB CPUID: REVISION Position */
347 #define SCB_CPUID_REVISION_Msk (0xFUL << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION Mask */
349 /* SCB Interrupt Control State Register Definitions */
350 #define SCB_ICSR_NMIPENDSET_Pos 31 /*!< SCB ICSR: NMIPENDSET Position */
351 #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
353 #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */
354 #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
356 #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */
357 #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
359 #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */
360 #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
362 #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */
363 #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
365 #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */
366 #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
368 #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */
369 #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
371 #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */
372 #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
374 #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< SCB ICSR: VECTACTIVE Position */
375 #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE Mask */
377 #if (__VTOR_PRESENT == 1)
378 /* SCB Interrupt Control State Register Definitions */
379 #define SCB_VTOR_TBLOFF_Pos 8 /*!< SCB VTOR: TBLOFF Position */
380 #define SCB_VTOR_TBLOFF_Msk (0xFFFFFFUL << SCB_VTOR_TBLOFF_Pos) /*!< SCB VTOR: TBLOFF Mask */
383 /* SCB Application Interrupt and Reset Control Register Definitions */
384 #define SCB_AIRCR_VECTKEY_Pos 16 /*!< SCB AIRCR: VECTKEY Position */
385 #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
387 #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */
388 #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
390 #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */
391 #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
393 #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */
394 #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
396 #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */
397 #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
399 /* SCB System Control Register Definitions */
400 #define SCB_SCR_SEVONPEND_Pos 4 /*!< SCB SCR: SEVONPEND Position */
401 #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
403 #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */
404 #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
406 #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< SCB SCR: SLEEPONEXIT Position */
407 #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
409 /* SCB Configuration Control Register Definitions */
410 #define SCB_CCR_STKALIGN_Pos 9 /*!< SCB CCR: STKALIGN Position */
411 #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
413 #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< SCB CCR: UNALIGN_TRP Position */
414 #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
416 /* SCB System Handler Control and State Register Definitions */
417 #define SCB_SHCSR_SVCALLPENDED_Pos 15 /*!< SCB SHCSR: SVCALLPENDED Position */
418 #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
420 /*@} end of group CMSIS_SCB */
423 /** \ingroup CMSIS_core_register
424 \defgroup CMSIS_SysTick System Tick Timer (SysTick)
425 \brief Type definitions for the System Timer Registers.
429 /** \brief Structure type to access the System Timer (SysTick).
433 __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
434 __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
435 __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
436 __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
439 /* SysTick Control / Status Register Definitions */
440 #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */
441 #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
443 #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */
444 #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
446 #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */
447 #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
449 #define SysTick_CTRL_ENABLE_Pos 0 /*!< SysTick CTRL: ENABLE Position */
450 #define SysTick_CTRL_ENABLE_Msk (1UL << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE Mask */
452 /* SysTick Reload Register Definitions */
453 #define SysTick_LOAD_RELOAD_Pos 0 /*!< SysTick LOAD: RELOAD Position */
454 #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */
456 /* SysTick Current Register Definitions */
457 #define SysTick_VAL_CURRENT_Pos 0 /*!< SysTick VAL: CURRENT Position */
458 #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */
460 /* SysTick Calibration Register Definitions */
461 #define SysTick_CALIB_NOREF_Pos 31 /*!< SysTick CALIB: NOREF Position */
462 #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
464 #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */
465 #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
467 #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */
468 #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */
470 /*@} end of group CMSIS_SysTick */
472 #if (__MPU_PRESENT == 1)
473 /** \ingroup CMSIS_core_register
474 \defgroup CMSIS_MPU Memory Protection Unit (MPU)
475 \brief Type definitions for the Memory Protection Unit (MPU)
479 /** \brief Structure type to access the Memory Protection Unit (MPU).
483 __I uint32_t TYPE; /*!< Offset: 0x000 (R/ ) MPU Type Register */
484 __IO uint32_t CTRL; /*!< Offset: 0x004 (R/W) MPU Control Register */
485 __IO uint32_t RNR; /*!< Offset: 0x008 (R/W) MPU Region RNRber Register */
486 __IO uint32_t RBAR; /*!< Offset: 0x00C (R/W) MPU Region Base Address Register */
487 __IO uint32_t RASR; /*!< Offset: 0x010 (R/W) MPU Region Attribute and Size Register */
490 /* MPU Type Register */
491 #define MPU_TYPE_IREGION_Pos 16 /*!< MPU TYPE: IREGION Position */
492 #define MPU_TYPE_IREGION_Msk (0xFFUL << MPU_TYPE_IREGION_Pos) /*!< MPU TYPE: IREGION Mask */
494 #define MPU_TYPE_DREGION_Pos 8 /*!< MPU TYPE: DREGION Position */
495 #define MPU_TYPE_DREGION_Msk (0xFFUL << MPU_TYPE_DREGION_Pos) /*!< MPU TYPE: DREGION Mask */
497 #define MPU_TYPE_SEPARATE_Pos 0 /*!< MPU TYPE: SEPARATE Position */
498 #define MPU_TYPE_SEPARATE_Msk (1UL << MPU_TYPE_SEPARATE_Pos) /*!< MPU TYPE: SEPARATE Mask */
500 /* MPU Control Register */
501 #define MPU_CTRL_PRIVDEFENA_Pos 2 /*!< MPU CTRL: PRIVDEFENA Position */
502 #define MPU_CTRL_PRIVDEFENA_Msk (1UL << MPU_CTRL_PRIVDEFENA_Pos) /*!< MPU CTRL: PRIVDEFENA Mask */
504 #define MPU_CTRL_HFNMIENA_Pos 1 /*!< MPU CTRL: HFNMIENA Position */
505 #define MPU_CTRL_HFNMIENA_Msk (1UL << MPU_CTRL_HFNMIENA_Pos) /*!< MPU CTRL: HFNMIENA Mask */
507 #define MPU_CTRL_ENABLE_Pos 0 /*!< MPU CTRL: ENABLE Position */
508 #define MPU_CTRL_ENABLE_Msk (1UL << MPU_CTRL_ENABLE_Pos) /*!< MPU CTRL: ENABLE Mask */
510 /* MPU Region Number Register */
511 #define MPU_RNR_REGION_Pos 0 /*!< MPU RNR: REGION Position */
512 #define MPU_RNR_REGION_Msk (0xFFUL << MPU_RNR_REGION_Pos) /*!< MPU RNR: REGION Mask */
514 /* MPU Region Base Address Register */
515 #define MPU_RBAR_ADDR_Pos 8 /*!< MPU RBAR: ADDR Position */
516 #define MPU_RBAR_ADDR_Msk (0xFFFFFFUL << MPU_RBAR_ADDR_Pos) /*!< MPU RBAR: ADDR Mask */
518 #define MPU_RBAR_VALID_Pos 4 /*!< MPU RBAR: VALID Position */
519 #define MPU_RBAR_VALID_Msk (1UL << MPU_RBAR_VALID_Pos) /*!< MPU RBAR: VALID Mask */
521 #define MPU_RBAR_REGION_Pos 0 /*!< MPU RBAR: REGION Position */
522 #define MPU_RBAR_REGION_Msk (0xFUL << MPU_RBAR_REGION_Pos) /*!< MPU RBAR: REGION Mask */
524 /* MPU Region Attribute and Size Register */
525 #define MPU_RASR_ATTRS_Pos 16 /*!< MPU RASR: MPU Region Attribute field Position */
526 #define MPU_RASR_ATTRS_Msk (0xFFFFUL << MPU_RASR_ATTRS_Pos) /*!< MPU RASR: MPU Region Attribute field Mask */
528 #define MPU_RASR_XN_Pos 28 /*!< MPU RASR: ATTRS.XN Position */
529 #define MPU_RASR_XN_Msk (1UL << MPU_RASR_XN_Pos) /*!< MPU RASR: ATTRS.XN Mask */
531 #define MPU_RASR_AP_Pos 24 /*!< MPU RASR: ATTRS.AP Position */
532 #define MPU_RASR_AP_Msk (0x7UL << MPU_RASR_AP_Pos) /*!< MPU RASR: ATTRS.AP Mask */
534 #define MPU_RASR_TEX_Pos 19 /*!< MPU RASR: ATTRS.TEX Position */
535 #define MPU_RASR_TEX_Msk (0x7UL << MPU_RASR_TEX_Pos) /*!< MPU RASR: ATTRS.TEX Mask */
537 #define MPU_RASR_S_Pos 18 /*!< MPU RASR: ATTRS.S Position */
538 #define MPU_RASR_S_Msk (1UL << MPU_RASR_S_Pos) /*!< MPU RASR: ATTRS.S Mask */
540 #define MPU_RASR_C_Pos 17 /*!< MPU RASR: ATTRS.C Position */
541 #define MPU_RASR_C_Msk (1UL << MPU_RASR_C_Pos) /*!< MPU RASR: ATTRS.C Mask */
543 #define MPU_RASR_B_Pos 16 /*!< MPU RASR: ATTRS.B Position */
544 #define MPU_RASR_B_Msk (1UL << MPU_RASR_B_Pos) /*!< MPU RASR: ATTRS.B Mask */
546 #define MPU_RASR_SRD_Pos 8 /*!< MPU RASR: Sub-Region Disable Position */
547 #define MPU_RASR_SRD_Msk (0xFFUL << MPU_RASR_SRD_Pos) /*!< MPU RASR: Sub-Region Disable Mask */
549 #define MPU_RASR_SIZE_Pos 1 /*!< MPU RASR: Region Size Field Position */
550 #define MPU_RASR_SIZE_Msk (0x1FUL << MPU_RASR_SIZE_Pos) /*!< MPU RASR: Region Size Field Mask */
552 #define MPU_RASR_ENABLE_Pos 0 /*!< MPU RASR: Region enable bit Position */
553 #define MPU_RASR_ENABLE_Msk (1UL << MPU_RASR_ENABLE_Pos) /*!< MPU RASR: Region enable bit Disable Mask */
555 /*@} end of group CMSIS_MPU */
559 /** \ingroup CMSIS_core_register
560 \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
561 \brief Cortex-M0+ Core Debug Registers (DCB registers, SHCSR, and DFSR)
562 are only accessible over DAP and not via processor. Therefore
563 they are not covered by the Cortex-M0 header file.
566 /*@} end of group CMSIS_CoreDebug */
569 /** \ingroup CMSIS_core_register
570 \defgroup CMSIS_core_base Core Definitions
571 \brief Definitions for base addresses, unions, and structures.
575 /* Memory mapping of Cortex-M0+ Hardware */
576 #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
577 #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
578 #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
579 #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
581 #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
582 #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
583 #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
585 #if (__MPU_PRESENT == 1)
586 #define MPU_BASE (SCS_BASE + 0x0D90UL) /*!< Memory Protection Unit */
587 #define MPU ((MPU_Type *) MPU_BASE ) /*!< Memory Protection Unit */
594 /*******************************************************************************
595 * Hardware Abstraction Layer
596 Core Function Interface contains:
597 - Core NVIC Functions
598 - Core SysTick Functions
599 - Core Register Access Functions
600 ******************************************************************************/
601 /** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
606 /* ########################## NVIC functions #################################### */
607 /** \ingroup CMSIS_Core_FunctionInterface
608 \defgroup CMSIS_Core_NVICFunctions NVIC Functions
609 \brief Functions that manage interrupts and exceptions via the NVIC.
613 /* Interrupt Priorities are WORD accessible only under ARMv6M */
614 /* The following MACROS handle generation of the register offset and byte masks */
615 #define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 )
616 #define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) )
617 #define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) )
620 /** \brief Enable External Interrupt
622 The function enables a device-specific interrupt in the NVIC interrupt controller.
624 \param [in] IRQn External interrupt number. Value cannot be negative.
626 __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
628 NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
632 /** \brief Disable External Interrupt
634 The function disables a device-specific interrupt in the NVIC interrupt controller.
636 \param [in] IRQn External interrupt number. Value cannot be negative.
638 __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
640 NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
644 /** \brief Get Pending Interrupt
646 The function reads the pending register in the NVIC and returns the pending bit
647 for the specified interrupt.
649 \param [in] IRQn Interrupt number.
651 \return 0 Interrupt status is not pending.
652 \return 1 Interrupt status is pending.
654 __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
656 return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
660 /** \brief Set Pending Interrupt
662 The function sets the pending bit of an external interrupt.
664 \param [in] IRQn Interrupt number. Value cannot be negative.
666 __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
668 NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F));
672 /** \brief Clear Pending Interrupt
674 The function clears the pending bit of an external interrupt.
676 \param [in] IRQn External interrupt number. Value cannot be negative.
678 __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
680 NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */
684 /** \brief Set Interrupt Priority
686 The function sets the priority of an interrupt.
688 \note The priority cannot be set for every core interrupt.
690 \param [in] IRQn Interrupt number.
691 \param [in] priority Priority to set.
693 __STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
696 SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
697 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
699 NVIC->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) |
700 (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); }
704 /** \brief Get Interrupt Priority
706 The function reads the priority of an interrupt. The interrupt
707 number can be positive to specify an external (device specific)
708 interrupt, or negative to specify an internal (core) interrupt.
711 \param [in] IRQn Interrupt number.
712 \return Interrupt Priority. Value is aligned automatically to the implemented
713 priority bits of the microcontroller.
715 __STATIC_INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn)
719 return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */
721 return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */
725 /** \brief System Reset
727 The function initiates a system reset request to reset the MCU.
729 __STATIC_INLINE void NVIC_SystemReset(void)
731 __DSB(); /* Ensure all outstanding memory accesses included
732 buffered write are completed before reset */
733 SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) |
734 SCB_AIRCR_SYSRESETREQ_Msk);
735 __DSB(); /* Ensure completion of memory access */
736 while(1); /* wait until reset */
739 /*@} end of CMSIS_Core_NVICFunctions */
743 /* ################################## SysTick function ############################################ */
744 /** \ingroup CMSIS_Core_FunctionInterface
745 \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
746 \brief Functions that configure the System.
750 #if (__Vendor_SysTickConfig == 0)
752 /** \brief System Tick Configuration
754 The function initializes the System Timer and its interrupt, and starts the System Tick Timer.
755 Counter is in free running mode to generate periodic interrupts.
757 \param [in] ticks Number of ticks between two interrupts.
759 \return 0 Function succeeded.
760 \return 1 Function failed.
762 \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
763 function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
764 must contain a vendor-specific implementation of this function.
767 __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
769 if ((ticks - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */
771 SysTick->LOAD = ticks - 1; /* set reload register */
772 NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */
773 SysTick->VAL = 0; /* Load the SysTick Counter Value */
774 SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
775 SysTick_CTRL_TICKINT_Msk |
776 SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
777 return (0); /* Function successful */
782 /*@} end of CMSIS_Core_SysTickFunctions */
787 #endif /* __CORE_CM0PLUS_H_DEPENDANT */
789 #endif /* __CMSIS_GENERIC */