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- /**************************************************************************//**
- * @file core_cm0.h
- * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File
- * @version V5.0.6
- * @date 13. March 2019
- ******************************************************************************/
- /*
- * Copyright (c) 2009-2019 Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an AS IS BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #if defined ( __ICCARM__ )
- #pragma system_include /* treat file as system include file for MISRA check */
- #elif defined (__clang__)
- #pragma clang system_header /* treat file as system include file */
- #endif
- #ifndef __CORE_CM0_H_GENERIC
- #define __CORE_CM0_H_GENERIC
- #include <stdint.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions
- CMSIS violates the following MISRA-C:2004 rules:
- \li Required Rule 8.5, object/function definition in header file.<br>
- Function definitions in header files are used to allow 'inlining'.
- \li Required Rule 18.4, declaration of union type or object of union type: '{...}'.<br>
- Unions are used for effective representation of core registers.
- \li Advisory Rule 19.7, Function-like macro defined.<br>
- Function-like macros are used to allow more efficient code.
- */
- /*******************************************************************************
- * CMSIS definitions
- ******************************************************************************/
- /**
- \ingroup Cortex_M0
- @{
- */
- #include "cmsis_version.h"
-
- /* CMSIS CM0 definitions */
- #define __CM0_CMSIS_VERSION_MAIN (__CM_CMSIS_VERSION_MAIN) /*!< \deprecated [31:16] CMSIS HAL main version */
- #define __CM0_CMSIS_VERSION_SUB (__CM_CMSIS_VERSION_SUB) /*!< \deprecated [15:0] CMSIS HAL sub version */
- #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16U) | \
- __CM0_CMSIS_VERSION_SUB ) /*!< \deprecated CMSIS HAL version number */
- #define __CORTEX_M (0U) /*!< Cortex-M Core */
- /** __FPU_USED indicates whether an FPU is used or not.
- This core does not support an FPU at all
- */
- #define __FPU_USED 0U
- #if defined ( __CC_ARM )
- #if defined __TARGET_FPU_VFP
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
- #if defined __ARM_FP
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined ( __GNUC__ )
- #if defined (__VFP_FP__) && !defined(__SOFTFP__)
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined ( __ICCARM__ )
- #if defined __ARMVFP__
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined ( __TI_ARM__ )
- #if defined __TI_VFP_SUPPORT__
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined ( __TASKING__ )
- #if defined __FPU_VFP__
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #elif defined ( __CSMC__ )
- #if ( __CSMC__ & 0x400U)
- #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
- #endif
- #endif
- #include "cmsis_compiler.h" /* CMSIS compiler specific defines */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __CORE_CM0_H_GENERIC */
- #ifndef __CMSIS_GENERIC
- #ifndef __CORE_CM0_H_DEPENDANT
- #define __CORE_CM0_H_DEPENDANT
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* check device defines and use defaults */
- #if defined __CHECK_DEVICE_DEFINES
- #ifndef __CM0_REV
- #define __CM0_REV 0x0000U
- #warning "__CM0_REV not defined in device header file; using default!"
- #endif
- #ifndef __NVIC_PRIO_BITS
- #define __NVIC_PRIO_BITS 2U
- #warning "__NVIC_PRIO_BITS not defined in device header file; using default!"
- #endif
- #ifndef __Vendor_SysTickConfig
- #define __Vendor_SysTickConfig 0U
- #warning "__Vendor_SysTickConfig not defined in device header file; using default!"
- #endif
- #endif
- /* IO definitions (access restrictions to peripheral registers) */
- /**
- \defgroup CMSIS_glob_defs CMSIS Global Defines
- <strong>IO Type Qualifiers</strong> are used
- \li to specify the access to peripheral variables.
- \li for automatic generation of peripheral register debug information.
- */
- #ifdef __cplusplus
- #define __I volatile /*!< Defines 'read only' permissions */
- #else
- #define __I volatile const /*!< Defines 'read only' permissions */
- #endif
- #define __O volatile /*!< Defines 'write only' permissions */
- #define __IO volatile /*!< Defines 'read / write' permissions */
- /* following defines should be used for structure members */
- #define __IM volatile const /*! Defines 'read only' structure member permissions */
- #define __OM volatile /*! Defines 'write only' structure member permissions */
- #define __IOM volatile /*! Defines 'read / write' structure member permissions */
- /*@} end of group Cortex_M0 */
- /*******************************************************************************
- * Register Abstraction
- Core Register contain:
- - Core Register
- - Core NVIC Register
- - Core SCB Register
- - Core SysTick Register
- ******************************************************************************/
- /**
- \defgroup CMSIS_core_register Defines and Type Definitions
- \brief Type definitions and defines for Cortex-M processor based devices.
- */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_CORE Status and Control Registers
- \brief Core Register type definitions.
- @{
- */
- /**
- \brief Union type to access the Application Program Status Register (APSR).
- */
- typedef union
- {
- struct
- {
- uint32_t _reserved0:28; /*!< bit: 0..27 Reserved */
- uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
- uint32_t C:1; /*!< bit: 29 Carry condition code flag */
- uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
- uint32_t N:1; /*!< bit: 31 Negative condition code flag */
- } b; /*!< Structure used for bit access */
- uint32_t w; /*!< Type used for word access */
- } APSR_Type;
- /* APSR Register Definitions */
- #define APSR_N_Pos 31U /*!< APSR: N Position */
- #define APSR_N_Msk (1UL << APSR_N_Pos) /*!< APSR: N Mask */
- #define APSR_Z_Pos 30U /*!< APSR: Z Position */
- #define APSR_Z_Msk (1UL << APSR_Z_Pos) /*!< APSR: Z Mask */
- #define APSR_C_Pos 29U /*!< APSR: C Position */
- #define APSR_C_Msk (1UL << APSR_C_Pos) /*!< APSR: C Mask */
- #define APSR_V_Pos 28U /*!< APSR: V Position */
- #define APSR_V_Msk (1UL << APSR_V_Pos) /*!< APSR: V Mask */
- /**
- \brief Union type to access the Interrupt Program Status Register (IPSR).
- */
- typedef union
- {
- struct
- {
- uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
- uint32_t _reserved0:23; /*!< bit: 9..31 Reserved */
- } b; /*!< Structure used for bit access */
- uint32_t w; /*!< Type used for word access */
- } IPSR_Type;
- /* IPSR Register Definitions */
- #define IPSR_ISR_Pos 0U /*!< IPSR: ISR Position */
- #define IPSR_ISR_Msk (0x1FFUL /*<< IPSR_ISR_Pos*/) /*!< IPSR: ISR Mask */
- /**
- \brief Union type to access the Special-Purpose Program Status Registers (xPSR).
- */
- typedef union
- {
- struct
- {
- uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */
- uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */
- uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */
- uint32_t _reserved1:3; /*!< bit: 25..27 Reserved */
- uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
- uint32_t C:1; /*!< bit: 29 Carry condition code flag */
- uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
- uint32_t N:1; /*!< bit: 31 Negative condition code flag */
- } b; /*!< Structure used for bit access */
- uint32_t w; /*!< Type used for word access */
- } xPSR_Type;
- /* xPSR Register Definitions */
- #define xPSR_N_Pos 31U /*!< xPSR: N Position */
- #define xPSR_N_Msk (1UL << xPSR_N_Pos) /*!< xPSR: N Mask */
- #define xPSR_Z_Pos 30U /*!< xPSR: Z Position */
- #define xPSR_Z_Msk (1UL << xPSR_Z_Pos) /*!< xPSR: Z Mask */
- #define xPSR_C_Pos 29U /*!< xPSR: C Position */
- #define xPSR_C_Msk (1UL << xPSR_C_Pos) /*!< xPSR: C Mask */
- #define xPSR_V_Pos 28U /*!< xPSR: V Position */
- #define xPSR_V_Msk (1UL << xPSR_V_Pos) /*!< xPSR: V Mask */
- #define xPSR_T_Pos 24U /*!< xPSR: T Position */
- #define xPSR_T_Msk (1UL << xPSR_T_Pos) /*!< xPSR: T Mask */
- #define xPSR_ISR_Pos 0U /*!< xPSR: ISR Position */
- #define xPSR_ISR_Msk (0x1FFUL /*<< xPSR_ISR_Pos*/) /*!< xPSR: ISR Mask */
- /**
- \brief Union type to access the Control Registers (CONTROL).
- */
- typedef union
- {
- struct
- {
- uint32_t _reserved0:1; /*!< bit: 0 Reserved */
- uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */
- uint32_t _reserved1:30; /*!< bit: 2..31 Reserved */
- } b; /*!< Structure used for bit access */
- uint32_t w; /*!< Type used for word access */
- } CONTROL_Type;
- /* CONTROL Register Definitions */
- #define CONTROL_SPSEL_Pos 1U /*!< CONTROL: SPSEL Position */
- #define CONTROL_SPSEL_Msk (1UL << CONTROL_SPSEL_Pos) /*!< CONTROL: SPSEL Mask */
- /*@} end of group CMSIS_CORE */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_NVIC Nested Vectored Interrupt Controller (NVIC)
- \brief Type definitions for the NVIC Registers
- @{
- */
- /**
- \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC).
- */
- typedef struct
- {
- __IOM uint32_t ISER[1U]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */
- uint32_t RESERVED0[31U];
- __IOM uint32_t ICER[1U]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */
- uint32_t RESERVED1[31U];
- __IOM uint32_t ISPR[1U]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */
- uint32_t RESERVED2[31U];
- __IOM uint32_t ICPR[1U]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */
- uint32_t RESERVED3[31U];
- uint32_t RESERVED4[64U];
- __IOM uint32_t IP[8U]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */
- } NVIC_Type;
- /*@} end of group CMSIS_NVIC */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_SCB System Control Block (SCB)
- \brief Type definitions for the System Control Block Registers
- @{
- */
- /**
- \brief Structure type to access the System Control Block (SCB).
- */
- typedef struct
- {
- __IM uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */
- __IOM uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */
- uint32_t RESERVED0;
- __IOM uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */
- __IOM uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */
- __IOM uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */
- uint32_t RESERVED1;
- __IOM uint32_t SHP[2U]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */
- __IOM uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */
- } SCB_Type;
- /* SCB CPUID Register Definitions */
- #define SCB_CPUID_IMPLEMENTER_Pos 24U /*!< SCB CPUID: IMPLEMENTER Position */
- #define SCB_CPUID_IMPLEMENTER_Msk (0xFFUL << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */
- #define SCB_CPUID_VARIANT_Pos 20U /*!< SCB CPUID: VARIANT Position */
- #define SCB_CPUID_VARIANT_Msk (0xFUL << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */
- #define SCB_CPUID_ARCHITECTURE_Pos 16U /*!< SCB CPUID: ARCHITECTURE Position */
- #define SCB_CPUID_ARCHITECTURE_Msk (0xFUL << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */
- #define SCB_CPUID_PARTNO_Pos 4U /*!< SCB CPUID: PARTNO Position */
- #define SCB_CPUID_PARTNO_Msk (0xFFFUL << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */
- #define SCB_CPUID_REVISION_Pos 0U /*!< SCB CPUID: REVISION Position */
- #define SCB_CPUID_REVISION_Msk (0xFUL /*<< SCB_CPUID_REVISION_Pos*/) /*!< SCB CPUID: REVISION Mask */
- /* SCB Interrupt Control State Register Definitions */
- #define SCB_ICSR_NMIPENDSET_Pos 31U /*!< SCB ICSR: NMIPENDSET Position */
- #define SCB_ICSR_NMIPENDSET_Msk (1UL << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */
- #define SCB_ICSR_PENDSVSET_Pos 28U /*!< SCB ICSR: PENDSVSET Position */
- #define SCB_ICSR_PENDSVSET_Msk (1UL << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */
- #define SCB_ICSR_PENDSVCLR_Pos 27U /*!< SCB ICSR: PENDSVCLR Position */
- #define SCB_ICSR_PENDSVCLR_Msk (1UL << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */
- #define SCB_ICSR_PENDSTSET_Pos 26U /*!< SCB ICSR: PENDSTSET Position */
- #define SCB_ICSR_PENDSTSET_Msk (1UL << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */
- #define SCB_ICSR_PENDSTCLR_Pos 25U /*!< SCB ICSR: PENDSTCLR Position */
- #define SCB_ICSR_PENDSTCLR_Msk (1UL << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */
- #define SCB_ICSR_ISRPREEMPT_Pos 23U /*!< SCB ICSR: ISRPREEMPT Position */
- #define SCB_ICSR_ISRPREEMPT_Msk (1UL << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */
- #define SCB_ICSR_ISRPENDING_Pos 22U /*!< SCB ICSR: ISRPENDING Position */
- #define SCB_ICSR_ISRPENDING_Msk (1UL << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */
- #define SCB_ICSR_VECTPENDING_Pos 12U /*!< SCB ICSR: VECTPENDING Position */
- #define SCB_ICSR_VECTPENDING_Msk (0x1FFUL << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */
- #define SCB_ICSR_VECTACTIVE_Pos 0U /*!< SCB ICSR: VECTACTIVE Position */
- #define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL /*<< SCB_ICSR_VECTACTIVE_Pos*/) /*!< SCB ICSR: VECTACTIVE Mask */
- /* SCB Application Interrupt and Reset Control Register Definitions */
- #define SCB_AIRCR_VECTKEY_Pos 16U /*!< SCB AIRCR: VECTKEY Position */
- #define SCB_AIRCR_VECTKEY_Msk (0xFFFFUL << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */
- #define SCB_AIRCR_VECTKEYSTAT_Pos 16U /*!< SCB AIRCR: VECTKEYSTAT Position */
- #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFUL << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */
- #define SCB_AIRCR_ENDIANESS_Pos 15U /*!< SCB AIRCR: ENDIANESS Position */
- #define SCB_AIRCR_ENDIANESS_Msk (1UL << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */
- #define SCB_AIRCR_SYSRESETREQ_Pos 2U /*!< SCB AIRCR: SYSRESETREQ Position */
- #define SCB_AIRCR_SYSRESETREQ_Msk (1UL << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */
- #define SCB_AIRCR_VECTCLRACTIVE_Pos 1U /*!< SCB AIRCR: VECTCLRACTIVE Position */
- #define SCB_AIRCR_VECTCLRACTIVE_Msk (1UL << SCB_AIRCR_VECTCLRACTIVE_Pos) /*!< SCB AIRCR: VECTCLRACTIVE Mask */
- /* SCB System Control Register Definitions */
- #define SCB_SCR_SEVONPEND_Pos 4U /*!< SCB SCR: SEVONPEND Position */
- #define SCB_SCR_SEVONPEND_Msk (1UL << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */
- #define SCB_SCR_SLEEPDEEP_Pos 2U /*!< SCB SCR: SLEEPDEEP Position */
- #define SCB_SCR_SLEEPDEEP_Msk (1UL << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */
- #define SCB_SCR_SLEEPONEXIT_Pos 1U /*!< SCB SCR: SLEEPONEXIT Position */
- #define SCB_SCR_SLEEPONEXIT_Msk (1UL << SCB_SCR_SLEEPONEXIT_Pos) /*!< SCB SCR: SLEEPONEXIT Mask */
- /* SCB Configuration Control Register Definitions */
- #define SCB_CCR_STKALIGN_Pos 9U /*!< SCB CCR: STKALIGN Position */
- #define SCB_CCR_STKALIGN_Msk (1UL << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */
- #define SCB_CCR_UNALIGN_TRP_Pos 3U /*!< SCB CCR: UNALIGN_TRP Position */
- #define SCB_CCR_UNALIGN_TRP_Msk (1UL << SCB_CCR_UNALIGN_TRP_Pos) /*!< SCB CCR: UNALIGN_TRP Mask */
- /* SCB System Handler Control and State Register Definitions */
- #define SCB_SHCSR_SVCALLPENDED_Pos 15U /*!< SCB SHCSR: SVCALLPENDED Position */
- #define SCB_SHCSR_SVCALLPENDED_Msk (1UL << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */
- /*@} end of group CMSIS_SCB */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_SysTick System Tick Timer (SysTick)
- \brief Type definitions for the System Timer Registers.
- @{
- */
- /**
- \brief Structure type to access the System Timer (SysTick).
- */
- typedef struct
- {
- __IOM uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */
- __IOM uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */
- __IOM uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */
- __IM uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */
- } SysTick_Type;
- /* SysTick Control / Status Register Definitions */
- #define SysTick_CTRL_COUNTFLAG_Pos 16U /*!< SysTick CTRL: COUNTFLAG Position */
- #define SysTick_CTRL_COUNTFLAG_Msk (1UL << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */
- #define SysTick_CTRL_CLKSOURCE_Pos 2U /*!< SysTick CTRL: CLKSOURCE Position */
- #define SysTick_CTRL_CLKSOURCE_Msk (1UL << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */
- #define SysTick_CTRL_TICKINT_Pos 1U /*!< SysTick CTRL: TICKINT Position */
- #define SysTick_CTRL_TICKINT_Msk (1UL << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */
- #define SysTick_CTRL_ENABLE_Pos 0U /*!< SysTick CTRL: ENABLE Position */
- #define SysTick_CTRL_ENABLE_Msk (1UL /*<< SysTick_CTRL_ENABLE_Pos*/) /*!< SysTick CTRL: ENABLE Mask */
- /* SysTick Reload Register Definitions */
- #define SysTick_LOAD_RELOAD_Pos 0U /*!< SysTick LOAD: RELOAD Position */
- #define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL /*<< SysTick_LOAD_RELOAD_Pos*/) /*!< SysTick LOAD: RELOAD Mask */
- /* SysTick Current Register Definitions */
- #define SysTick_VAL_CURRENT_Pos 0U /*!< SysTick VAL: CURRENT Position */
- #define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL /*<< SysTick_VAL_CURRENT_Pos*/) /*!< SysTick VAL: CURRENT Mask */
- /* SysTick Calibration Register Definitions */
- #define SysTick_CALIB_NOREF_Pos 31U /*!< SysTick CALIB: NOREF Position */
- #define SysTick_CALIB_NOREF_Msk (1UL << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */
- #define SysTick_CALIB_SKEW_Pos 30U /*!< SysTick CALIB: SKEW Position */
- #define SysTick_CALIB_SKEW_Msk (1UL << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */
- #define SysTick_CALIB_TENMS_Pos 0U /*!< SysTick CALIB: TENMS Position */
- #define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL /*<< SysTick_CALIB_TENMS_Pos*/) /*!< SysTick CALIB: TENMS Mask */
- /*@} end of group CMSIS_SysTick */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_CoreDebug Core Debug Registers (CoreDebug)
- \brief Cortex-M0 Core Debug Registers (DCB registers, SHCSR, and DFSR) are only accessible over DAP and not via processor.
- Therefore they are not covered by the Cortex-M0 header file.
- @{
- */
- /*@} end of group CMSIS_CoreDebug */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_core_bitfield Core register bit field macros
- \brief Macros for use with bit field definitions (xxx_Pos, xxx_Msk).
- @{
- */
- /**
- \brief Mask and shift a bit field value for use in a register bit range.
- \param[in] field Name of the register bit field.
- \param[in] value Value of the bit field. This parameter is interpreted as an uint32_t type.
- \return Masked and shifted value.
- */
- #define _VAL2FLD(field, value) (((uint32_t)(value) << field ## _Pos) & field ## _Msk)
- /**
- \brief Mask and shift a register value to extract a bit filed value.
- \param[in] field Name of the register bit field.
- \param[in] value Value of register. This parameter is interpreted as an uint32_t type.
- \return Masked and shifted bit field value.
- */
- #define _FLD2VAL(field, value) (((uint32_t)(value) & field ## _Msk) >> field ## _Pos)
- /*@} end of group CMSIS_core_bitfield */
- /**
- \ingroup CMSIS_core_register
- \defgroup CMSIS_core_base Core Definitions
- \brief Definitions for base addresses, unions, and structures.
- @{
- */
- /* Memory mapping of Core Hardware */
- #define SCS_BASE (0xE000E000UL) /*!< System Control Space Base Address */
- #define SysTick_BASE (SCS_BASE + 0x0010UL) /*!< SysTick Base Address */
- #define NVIC_BASE (SCS_BASE + 0x0100UL) /*!< NVIC Base Address */
- #define SCB_BASE (SCS_BASE + 0x0D00UL) /*!< System Control Block Base Address */
- #define SCB ((SCB_Type *) SCB_BASE ) /*!< SCB configuration struct */
- #define SysTick ((SysTick_Type *) SysTick_BASE ) /*!< SysTick configuration struct */
- #define NVIC ((NVIC_Type *) NVIC_BASE ) /*!< NVIC configuration struct */
- /*@} */
- /*******************************************************************************
- * Hardware Abstraction Layer
- Core Function Interface contains:
- - Core NVIC Functions
- - Core SysTick Functions
- - Core Register Access Functions
- ******************************************************************************/
- /**
- \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference
- */
- /* ########################## NVIC functions #################################### */
- /**
- \ingroup CMSIS_Core_FunctionInterface
- \defgroup CMSIS_Core_NVICFunctions NVIC Functions
- \brief Functions that manage interrupts and exceptions via the NVIC.
- @{
- */
- #ifdef CMSIS_NVIC_VIRTUAL
- #ifndef CMSIS_NVIC_VIRTUAL_HEADER_FILE
- #define CMSIS_NVIC_VIRTUAL_HEADER_FILE "cmsis_nvic_virtual.h"
- #endif
- #include CMSIS_NVIC_VIRTUAL_HEADER_FILE
- #else
- #define NVIC_SetPriorityGrouping __NVIC_SetPriorityGrouping
- #define NVIC_GetPriorityGrouping __NVIC_GetPriorityGrouping
- #define NVIC_EnableIRQ __NVIC_EnableIRQ
- #define NVIC_GetEnableIRQ __NVIC_GetEnableIRQ
- #define NVIC_DisableIRQ __NVIC_DisableIRQ
- #define NVIC_GetPendingIRQ __NVIC_GetPendingIRQ
- #define NVIC_SetPendingIRQ __NVIC_SetPendingIRQ
- #define NVIC_ClearPendingIRQ __NVIC_ClearPendingIRQ
- /*#define NVIC_GetActive __NVIC_GetActive not available for Cortex-M0 */
- #define NVIC_SetPriority __NVIC_SetPriority
- #define NVIC_GetPriority __NVIC_GetPriority
- #define NVIC_SystemReset __NVIC_SystemReset
- #endif /* CMSIS_NVIC_VIRTUAL */
- #ifdef CMSIS_VECTAB_VIRTUAL
- #ifndef CMSIS_VECTAB_VIRTUAL_HEADER_FILE
- #define CMSIS_VECTAB_VIRTUAL_HEADER_FILE "cmsis_vectab_virtual.h"
- #endif
- #include CMSIS_VECTAB_VIRTUAL_HEADER_FILE
- #else
- #define NVIC_SetVector __NVIC_SetVector
- #define NVIC_GetVector __NVIC_GetVector
- #endif /* (CMSIS_VECTAB_VIRTUAL) */
- #define NVIC_USER_IRQ_OFFSET 16
- /* The following EXC_RETURN values are saved the LR on exception entry */
- #define EXC_RETURN_HANDLER (0xFFFFFFF1UL) /* return to Handler mode, uses MSP after return */
- #define EXC_RETURN_THREAD_MSP (0xFFFFFFF9UL) /* return to Thread mode, uses MSP after return */
- #define EXC_RETURN_THREAD_PSP (0xFFFFFFFDUL) /* return to Thread mode, uses PSP after return */
- /* Interrupt Priorities are WORD accessible only under Armv6-M */
- /* The following MACROS handle generation of the register offset and byte masks */
- #define _BIT_SHIFT(IRQn) ( ((((uint32_t)(int32_t)(IRQn)) ) & 0x03UL) * 8UL)
- #define _SHP_IDX(IRQn) ( (((((uint32_t)(int32_t)(IRQn)) & 0x0FUL)-8UL) >> 2UL) )
- #define _IP_IDX(IRQn) ( (((uint32_t)(int32_t)(IRQn)) >> 2UL) )
- #define __NVIC_SetPriorityGrouping(X) (void)(X)
- #define __NVIC_GetPriorityGrouping() (0U)
- /**
- \brief Enable Interrupt
- \details Enables a device specific interrupt in the NVIC interrupt controller.
- \param [in] IRQn Device specific interrupt number.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE void __NVIC_EnableIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- __COMPILER_BARRIER();
- NVIC->ISER[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
- __COMPILER_BARRIER();
- }
- }
- /**
- \brief Get Interrupt Enable status
- \details Returns a device specific interrupt enable status from the NVIC interrupt controller.
- \param [in] IRQn Device specific interrupt number.
- \return 0 Interrupt is not enabled.
- \return 1 Interrupt is enabled.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE uint32_t __NVIC_GetEnableIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- return((uint32_t)(((NVIC->ISER[0U] & (1UL << (((uint32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
- }
- else
- {
- return(0U);
- }
- }
- /**
- \brief Disable Interrupt
- \details Disables a device specific interrupt in the NVIC interrupt controller.
- \param [in] IRQn Device specific interrupt number.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE void __NVIC_DisableIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- NVIC->ICER[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
- __DSB();
- __ISB();
- }
- }
- /**
- \brief Get Pending Interrupt
- \details Reads the NVIC pending register and returns the pending bit for the specified device specific interrupt.
- \param [in] IRQn Device specific interrupt number.
- \return 0 Interrupt status is not pending.
- \return 1 Interrupt status is pending.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE uint32_t __NVIC_GetPendingIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- return((uint32_t)(((NVIC->ISPR[0U] & (1UL << (((uint32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL));
- }
- else
- {
- return(0U);
- }
- }
- /**
- \brief Set Pending Interrupt
- \details Sets the pending bit of a device specific interrupt in the NVIC pending register.
- \param [in] IRQn Device specific interrupt number.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE void __NVIC_SetPendingIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- NVIC->ISPR[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
- }
- }
- /**
- \brief Clear Pending Interrupt
- \details Clears the pending bit of a device specific interrupt in the NVIC pending register.
- \param [in] IRQn Device specific interrupt number.
- \note IRQn must not be negative.
- */
- __STATIC_INLINE void __NVIC_ClearPendingIRQ(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- NVIC->ICPR[0U] = (uint32_t)(1UL << (((uint32_t)IRQn) & 0x1FUL));
- }
- }
- /**
- \brief Set Interrupt Priority
- \details Sets the priority of a device specific interrupt or a processor exception.
- The interrupt number can be positive to specify a device specific interrupt,
- or negative to specify a processor exception.
- \param [in] IRQn Interrupt number.
- \param [in] priority Priority to set.
- \note The priority cannot be set for every processor exception.
- */
- __STATIC_INLINE void __NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- NVIC->IP[_IP_IDX(IRQn)] = ((uint32_t)(NVIC->IP[_IP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
- (((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
- }
- else
- {
- SCB->SHP[_SHP_IDX(IRQn)] = ((uint32_t)(SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFFUL << _BIT_SHIFT(IRQn))) |
- (((priority << (8U - __NVIC_PRIO_BITS)) & (uint32_t)0xFFUL) << _BIT_SHIFT(IRQn)));
- }
- }
- /**
- \brief Get Interrupt Priority
- \details Reads the priority of a device specific interrupt or a processor exception.
- The interrupt number can be positive to specify a device specific interrupt,
- or negative to specify a processor exception.
- \param [in] IRQn Interrupt number.
- \return Interrupt Priority.
- Value is aligned automatically to the implemented priority bits of the microcontroller.
- */
- __STATIC_INLINE uint32_t __NVIC_GetPriority(IRQn_Type IRQn)
- {
- if ((int32_t)(IRQn) >= 0)
- {
- return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
- }
- else
- {
- return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS)));
- }
- }
- /**
- \brief Encode Priority
- \details Encodes the priority for an interrupt with the given priority group,
- preemptive priority value, and subpriority value.
- In case of a conflict between priority grouping and available
- priority bits (__NVIC_PRIO_BITS), the smallest possible priority group is set.
- \param [in] PriorityGroup Used priority group.
- \param [in] PreemptPriority Preemptive priority value (starting from 0).
- \param [in] SubPriority Subpriority value (starting from 0).
- \return Encoded priority. Value can be used in the function \ref NVIC_SetPriority().
- */
- __STATIC_INLINE uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority)
- {
- uint32_t PriorityGroupTmp = (PriorityGroup & (uint32_t)0x07UL); /* only values 0..7 are used */
- uint32_t PreemptPriorityBits;
- uint32_t SubPriorityBits;
- PreemptPriorityBits = ((7UL - PriorityGroupTmp) > (uint32_t)(__NVIC_PRIO_BITS)) ? (uint32_t)(__NVIC_PRIO_BITS) : (uint32_t)(7UL - PriorityGroupTmp);
- SubPriorityBits = ((PriorityGroupTmp + (uint32_t)(__NVIC_PRIO_BITS)) < (uint32_t)7UL) ? (uint32_t)0UL : (uint32_t)((PriorityGroupTmp - 7UL) + (uint32_t)(__NVIC_PRIO_BITS));
- return (
- ((PreemptPriority & (uint32_t)((1UL << (PreemptPriorityBits)) - 1UL)) << SubPriorityBits) |
- ((SubPriority & (uint32_t)((1UL << (SubPriorityBits )) - 1UL)))
- );
- }
- /**
- \brief Decode Priority
- \details Decodes an interrupt priority value with a given priority group to
- preemptive priority value and subpriority value.
- In case of a conflict between priority grouping and available
- priority bits (__NVIC_PRIO_BITS) the smallest possible priority group is set.
- \param [in] Priority Priority value, which can be retrieved with the function \ref NVIC_GetPriority().
- \param [in] PriorityGroup Used priority group.
- \param [out] pPreemptPriority Preemptive priority value (starting from 0).
- \param [out] pSubPriority Subpriority value (starting from 0).
- */
- __STATIC_INLINE void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* const pPreemptPriority, uint32_t* const pSubPriority)
- {
- uint32_t PriorityGroupTmp = (PriorityGroup & (uint32_t)0x07UL); /* only values 0..7 are used */
- uint32_t PreemptPriorityBits;
- uint32_t SubPriorityBits;
- PreemptPriorityBits = ((7UL - PriorityGroupTmp) > (uint32_t)(__NVIC_PRIO_BITS)) ? (uint32_t)(__NVIC_PRIO_BITS) : (uint32_t)(7UL - PriorityGroupTmp);
- SubPriorityBits = ((PriorityGroupTmp + (uint32_t)(__NVIC_PRIO_BITS)) < (uint32_t)7UL) ? (uint32_t)0UL : (uint32_t)((PriorityGroupTmp - 7UL) + (uint32_t)(__NVIC_PRIO_BITS));
- *pPreemptPriority = (Priority >> SubPriorityBits) & (uint32_t)((1UL << (PreemptPriorityBits)) - 1UL);
- *pSubPriority = (Priority ) & (uint32_t)((1UL << (SubPriorityBits )) - 1UL);
- }
- /**
- \brief Set Interrupt Vector
- \details Sets an interrupt vector in SRAM based interrupt vector table.
- The interrupt number can be positive to specify a device specific interrupt,
- or negative to specify a processor exception.
- Address 0 must be mapped to SRAM.
- \param [in] IRQn Interrupt number
- \param [in] vector Address of interrupt handler function
- */
- __STATIC_INLINE void __NVIC_SetVector(IRQn_Type IRQn, uint32_t vector)
- {
- uint32_t vectors = 0x0U;
- (* (int *) (vectors + ((int32_t)IRQn + NVIC_USER_IRQ_OFFSET) * 4)) = vector;
- /* ARM Application Note 321 states that the M0 does not require the architectural barrier */
- }
- /**
- \brief Get Interrupt Vector
- \details Reads an interrupt vector from interrupt vector table.
- The interrupt number can be positive to specify a device specific interrupt,
- or negative to specify a processor exception.
- \param [in] IRQn Interrupt number.
- \return Address of interrupt handler function
- */
- __STATIC_INLINE uint32_t __NVIC_GetVector(IRQn_Type IRQn)
- {
- uint32_t vectors = 0x0U;
- return (uint32_t)(* (int *) (vectors + ((int32_t)IRQn + NVIC_USER_IRQ_OFFSET) * 4));
- }
- /**
- \brief System Reset
- \details Initiates a system reset request to reset the MCU.
- */
- __NO_RETURN __STATIC_INLINE void __NVIC_SystemReset(void)
- {
- __DSB(); /* Ensure all outstanding memory accesses included
- buffered write are completed before reset */
- SCB->AIRCR = ((0x5FAUL << SCB_AIRCR_VECTKEY_Pos) |
- SCB_AIRCR_SYSRESETREQ_Msk);
- __DSB(); /* Ensure completion of memory access */
- for(;;) /* wait until reset */
- {
- __NOP();
- }
- }
- /*@} end of CMSIS_Core_NVICFunctions */
- /* ########################## FPU functions #################################### */
- /**
- \ingroup CMSIS_Core_FunctionInterface
- \defgroup CMSIS_Core_FpuFunctions FPU Functions
- \brief Function that provides FPU type.
- @{
- */
- /**
- \brief get FPU type
- \details returns the FPU type
- \returns
- - \b 0: No FPU
- - \b 1: Single precision FPU
- - \b 2: Double + Single precision FPU
- */
- __STATIC_INLINE uint32_t SCB_GetFPUType(void)
- {
- return 0U; /* No FPU */
- }
- /*@} end of CMSIS_Core_FpuFunctions */
- /* ################################## SysTick function ############################################ */
- /**
- \ingroup CMSIS_Core_FunctionInterface
- \defgroup CMSIS_Core_SysTickFunctions SysTick Functions
- \brief Functions that configure the System.
- @{
- */
- #if defined (__Vendor_SysTickConfig) && (__Vendor_SysTickConfig == 0U)
- /**
- \brief System Tick Configuration
- \details Initializes the System Timer and its interrupt, and starts the System Tick Timer.
- Counter is in free running mode to generate periodic interrupts.
- \param [in] ticks Number of ticks between two interrupts.
- \return 0 Function succeeded.
- \return 1 Function failed.
- \note When the variable <b>__Vendor_SysTickConfig</b> is set to 1, then the
- function <b>SysTick_Config</b> is not included. In this case, the file <b><i>device</i>.h</b>
- must contain a vendor-specific implementation of this function.
- */
- __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
- {
- if ((ticks - 1UL) > SysTick_LOAD_RELOAD_Msk)
- {
- return (1UL); /* Reload value impossible */
- }
- SysTick->LOAD = (uint32_t)(ticks - 1UL); /* set reload register */
- NVIC_SetPriority (SysTick_IRQn, (1UL << __NVIC_PRIO_BITS) - 1UL); /* set Priority for Systick Interrupt */
- SysTick->VAL = 0UL; /* Load the SysTick Counter Value */
- SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
- SysTick_CTRL_TICKINT_Msk |
- SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */
- return (0UL); /* Function successful */
- }
- #endif
- /*@} end of CMSIS_Core_SysTickFunctions */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __CORE_CM0_H_DEPENDANT */
- #endif /* __CMSIS_GENERIC */
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