/**************************************************************************//** * @file core_cm0.h * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File * @version V1.30 * @date 30. October 2009 * * @note * Copyright (C) 2009 ARM Limited. All rights reserved. * * @par * ARM Limited (ARM) is supplying this software for use with Cortex-M * processor based microcontrollers. This file can be freely distributed * within development tools that are supporting such ARM based processors. * * @par * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. * ******************************************************************************/ #ifndef __CM0_CORE_H__ #define __CM0_CORE_H__ /** @addtogroup CMSIS_CM0_core_LintCinfiguration CMSIS CM0 Core Lint Configuration * * List of Lint messages which will be suppressed and not shown: * - not yet checked * . * Note: To re-enable a Message, insert a space before 'lint' * * */ /** @addtogroup CMSIS_CM0_core_definitions CM0 Core Definitions This file defines all structures and symbols for CMSIS core: - CMSIS version number - Cortex-M core registers and bitfields - Cortex-M core peripheral base address @{ */ #ifdef __cplusplus extern "C" { #endif #define __CM0_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ #define __CM0_CMSIS_VERSION_SUB (0x30) /*!< [15:0] CMSIS HAL sub version */ #define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | __CM0_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ #define __CORTEX_M (0x00) /*!< Cortex core */ #include /* Include standard types */ #if defined (__ICCARM__) #include /* IAR Intrinsics */ #endif #ifndef __NVIC_PRIO_BITS #define __NVIC_PRIO_BITS 2 /*!< standard definition for NVIC Priority Bits */ #endif /** * IO definitions * * define access restrictions to peripheral registers */ #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 */ /******************************************************************************* * Register Abstraction ******************************************************************************/ /** @addtogroup CMSIS_CM0_core_register CMSIS CM0 Core Register @{ */ /** @addtogroup CMSIS_CM0_NVIC CMSIS CM0 NVIC memory mapped structure for Nested Vectored Interrupt Controller (NVIC) @{ */ typedef struct { __IO uint32_t ISER[1]; /*!< (Offset: 0x000) Interrupt Set Enable Register */ uint32_t RESERVED0[31]; __IO uint32_t ICER[1]; /*!< (Offset: 0x080) Interrupt Clear Enable Register */ uint32_t RSERVED1[31]; __IO uint32_t ISPR[1]; /*!< (Offset: 0x100) Interrupt Set Pending Register */ uint32_t RESERVED2[31]; __IO uint32_t ICPR[1]; /*!< (Offset: 0x180) Interrupt Clear Pending Register */ uint32_t RESERVED3[31]; uint32_t RESERVED4[64]; __IO uint32_t IPR[8]; /*!< (Offset: 0x3EC) Interrupt Priority Register */ } NVIC_Type; /*@}*/ /* end of group CMSIS_CM0_NVIC */ /** @addtogroup CMSIS_CM0_SCB CMSIS CM0 SCB memory mapped structure for System Control Block (SCB) @{ */ typedef struct { __I uint32_t CPUID; /*!< Offset: 0x00 CPU ID Base Register */ __IO uint32_t ICSR; /*!< Offset: 0x04 Interrupt Control State Register */ uint32_t RESERVED0; __IO uint32_t AIRCR; /*!< Offset: 0x0C Application Interrupt / Reset Control Register */ __IO uint32_t SCR; /*!< Offset: 0x10 System Control Register */ __IO uint32_t CCR; /*!< Offset: 0x14 Configuration Control Register */ uint32_t RESERVED1; __IO uint32_t SHP[2]; /*!< Offset: 0x1C System Handlers Priority Registers. [0] is RESERVED */ __IO uint32_t SHCSR; /*!< Offset: 0x24 System Handler Control and State Register */ uint32_t RESERVED2[2]; __IO uint32_t DFSR; /*!< Offset: 0x30 Debug Fault Status Register */ } SCB_Type; /* SCB CPUID Register Definitions */ #define SCB_CPUID_IMPLEMENTER_Pos 24 /*!< SCB CPUID: IMPLEMENTER Position */ #define SCB_CPUID_IMPLEMENTER_Msk (0xFFul << SCB_CPUID_IMPLEMENTER_Pos) /*!< SCB CPUID: IMPLEMENTER Mask */ #define SCB_CPUID_VARIANT_Pos 20 /*!< SCB CPUID: VARIANT Position */ #define SCB_CPUID_VARIANT_Msk (0xFul << SCB_CPUID_VARIANT_Pos) /*!< SCB CPUID: VARIANT Mask */ #define SCB_CPUID_ARCHITECTURE_Pos 16 /*!< SCB CPUID: ARCHITECTURE Position */ #define SCB_CPUID_ARCHITECTURE_Msk (0xFul << SCB_CPUID_ARCHITECTURE_Pos) /*!< SCB CPUID: ARCHITECTURE Mask */ #define SCB_CPUID_PARTNO_Pos 4 /*!< SCB CPUID: PARTNO Position */ #define SCB_CPUID_PARTNO_Msk (0xFFFul << SCB_CPUID_PARTNO_Pos) /*!< SCB CPUID: PARTNO Mask */ #define SCB_CPUID_REVISION_Pos 0 /*!< 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 31 /*!< SCB ICSR: NMIPENDSET Position */ #define SCB_ICSR_NMIPENDSET_Msk (1ul << SCB_ICSR_NMIPENDSET_Pos) /*!< SCB ICSR: NMIPENDSET Mask */ #define SCB_ICSR_PENDSVSET_Pos 28 /*!< SCB ICSR: PENDSVSET Position */ #define SCB_ICSR_PENDSVSET_Msk (1ul << SCB_ICSR_PENDSVSET_Pos) /*!< SCB ICSR: PENDSVSET Mask */ #define SCB_ICSR_PENDSVCLR_Pos 27 /*!< SCB ICSR: PENDSVCLR Position */ #define SCB_ICSR_PENDSVCLR_Msk (1ul << SCB_ICSR_PENDSVCLR_Pos) /*!< SCB ICSR: PENDSVCLR Mask */ #define SCB_ICSR_PENDSTSET_Pos 26 /*!< SCB ICSR: PENDSTSET Position */ #define SCB_ICSR_PENDSTSET_Msk (1ul << SCB_ICSR_PENDSTSET_Pos) /*!< SCB ICSR: PENDSTSET Mask */ #define SCB_ICSR_PENDSTCLR_Pos 25 /*!< SCB ICSR: PENDSTCLR Position */ #define SCB_ICSR_PENDSTCLR_Msk (1ul << SCB_ICSR_PENDSTCLR_Pos) /*!< SCB ICSR: PENDSTCLR Mask */ #define SCB_ICSR_ISRPREEMPT_Pos 23 /*!< SCB ICSR: ISRPREEMPT Position */ #define SCB_ICSR_ISRPREEMPT_Msk (1ul << SCB_ICSR_ISRPREEMPT_Pos) /*!< SCB ICSR: ISRPREEMPT Mask */ #define SCB_ICSR_ISRPENDING_Pos 22 /*!< SCB ICSR: ISRPENDING Position */ #define SCB_ICSR_ISRPENDING_Msk (1ul << SCB_ICSR_ISRPENDING_Pos) /*!< SCB ICSR: ISRPENDING Mask */ #define SCB_ICSR_VECTPENDING_Pos 12 /*!< SCB ICSR: VECTPENDING Position */ #define SCB_ICSR_VECTPENDING_Msk (0x1FFul << SCB_ICSR_VECTPENDING_Pos) /*!< SCB ICSR: VECTPENDING Mask */ #define SCB_ICSR_VECTACTIVE_Pos 0 /*!< 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 16 /*!< SCB AIRCR: VECTKEY Position */ #define SCB_AIRCR_VECTKEY_Msk (0xFFFFul << SCB_AIRCR_VECTKEY_Pos) /*!< SCB AIRCR: VECTKEY Mask */ #define SCB_AIRCR_VECTKEYSTAT_Pos 16 /*!< SCB AIRCR: VECTKEYSTAT Position */ #define SCB_AIRCR_VECTKEYSTAT_Msk (0xFFFFul << SCB_AIRCR_VECTKEYSTAT_Pos) /*!< SCB AIRCR: VECTKEYSTAT Mask */ #define SCB_AIRCR_ENDIANESS_Pos 15 /*!< SCB AIRCR: ENDIANESS Position */ #define SCB_AIRCR_ENDIANESS_Msk (1ul << SCB_AIRCR_ENDIANESS_Pos) /*!< SCB AIRCR: ENDIANESS Mask */ #define SCB_AIRCR_SYSRESETREQ_Pos 2 /*!< SCB AIRCR: SYSRESETREQ Position */ #define SCB_AIRCR_SYSRESETREQ_Msk (1ul << SCB_AIRCR_SYSRESETREQ_Pos) /*!< SCB AIRCR: SYSRESETREQ Mask */ #define SCB_AIRCR_VECTCLRACTIVE_Pos 1 /*!< 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 4 /*!< SCB SCR: SEVONPEND Position */ #define SCB_SCR_SEVONPEND_Msk (1ul << SCB_SCR_SEVONPEND_Pos) /*!< SCB SCR: SEVONPEND Mask */ #define SCB_SCR_SLEEPDEEP_Pos 2 /*!< SCB SCR: SLEEPDEEP Position */ #define SCB_SCR_SLEEPDEEP_Msk (1ul << SCB_SCR_SLEEPDEEP_Pos) /*!< SCB SCR: SLEEPDEEP Mask */ #define SCB_SCR_SLEEPONEXIT_Pos 1 /*!< 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 9 /*!< SCB CCR: STKALIGN Position */ #define SCB_CCR_STKALIGN_Msk (1ul << SCB_CCR_STKALIGN_Pos) /*!< SCB CCR: STKALIGN Mask */ #define SCB_CCR_UNALIGN_TRP_Pos 3 /*!< 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 15 /*!< SCB SHCSR: SVCALLPENDED Position */ #define SCB_SHCSR_SVCALLPENDED_Msk (1ul << SCB_SHCSR_SVCALLPENDED_Pos) /*!< SCB SHCSR: SVCALLPENDED Mask */ /* SCB Debug Fault Status Register Definitions */ #define SCB_DFSR_EXTERNAL_Pos 4 /*!< SCB DFSR: EXTERNAL Position */ #define SCB_DFSR_EXTERNAL_Msk (1ul << SCB_DFSR_EXTERNAL_Pos) /*!< SCB DFSR: EXTERNAL Mask */ #define SCB_DFSR_VCATCH_Pos 3 /*!< SCB DFSR: VCATCH Position */ #define SCB_DFSR_VCATCH_Msk (1ul << SCB_DFSR_VCATCH_Pos) /*!< SCB DFSR: VCATCH Mask */ #define SCB_DFSR_DWTTRAP_Pos 2 /*!< SCB DFSR: DWTTRAP Position */ #define SCB_DFSR_DWTTRAP_Msk (1ul << SCB_DFSR_DWTTRAP_Pos) /*!< SCB DFSR: DWTTRAP Mask */ #define SCB_DFSR_BKPT_Pos 1 /*!< SCB DFSR: BKPT Position */ #define SCB_DFSR_BKPT_Msk (1ul << SCB_DFSR_BKPT_Pos) /*!< SCB DFSR: BKPT Mask */ #define SCB_DFSR_HALTED_Pos 0 /*!< SCB DFSR: HALTED Position */ #define SCB_DFSR_HALTED_Msk (1ul << SCB_DFSR_HALTED_Pos) /*!< SCB DFSR: HALTED Mask */ /*@}*/ /* end of group CMSIS_CM0_SCB */ /** @addtogroup CMSIS_CM0_SysTick CMSIS CM0 SysTick memory mapped structure for SysTick @{ */ typedef struct { __IO uint32_t CTRL; /*!< Offset: 0x00 SysTick Control and Status Register */ __IO uint32_t LOAD; /*!< Offset: 0x04 SysTick Reload Value Register */ __IO uint32_t VAL; /*!< Offset: 0x08 SysTick Current Value Register */ __I uint32_t CALIB; /*!< Offset: 0x0C SysTick Calibration Register */ } SysTick_Type; /* SysTick Control / Status Register Definitions */ #define SysTick_CTRL_COUNTFLAG_Pos 16 /*!< SysTick CTRL: COUNTFLAG Position */ #define SysTick_CTRL_COUNTFLAG_Msk (1ul << SysTick_CTRL_COUNTFLAG_Pos) /*!< SysTick CTRL: COUNTFLAG Mask */ #define SysTick_CTRL_CLKSOURCE_Pos 2 /*!< SysTick CTRL: CLKSOURCE Position */ #define SysTick_CTRL_CLKSOURCE_Msk (1ul << SysTick_CTRL_CLKSOURCE_Pos) /*!< SysTick CTRL: CLKSOURCE Mask */ #define SysTick_CTRL_TICKINT_Pos 1 /*!< SysTick CTRL: TICKINT Position */ #define SysTick_CTRL_TICKINT_Msk (1ul << SysTick_CTRL_TICKINT_Pos) /*!< SysTick CTRL: TICKINT Mask */ #define SysTick_CTRL_ENABLE_Pos 0 /*!< 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 0 /*!< 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 0 /*!< 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 31 /*!< SysTick CALIB: NOREF Position */ #define SysTick_CALIB_NOREF_Msk (1ul << SysTick_CALIB_NOREF_Pos) /*!< SysTick CALIB: NOREF Mask */ #define SysTick_CALIB_SKEW_Pos 30 /*!< SysTick CALIB: SKEW Position */ #define SysTick_CALIB_SKEW_Msk (1ul << SysTick_CALIB_SKEW_Pos) /*!< SysTick CALIB: SKEW Mask */ #define SysTick_CALIB_TENMS_Pos 0 /*!< SysTick CALIB: TENMS Position */ #define SysTick_CALIB_TENMS_Msk (0xFFFFFFul << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS Mask */ /*@}*/ /* end of group CMSIS_CM0_SysTick */ /** @addtogroup CMSIS_CM0_CoreDebug CMSIS CM0 Core Debug memory mapped structure for Core Debug Register @{ */ typedef struct { __IO uint32_t DHCSR; /*!< Offset: 0x00 Debug Halting Control and Status Register */ __O uint32_t DCRSR; /*!< Offset: 0x04 Debug Core Register Selector Register */ __IO uint32_t DCRDR; /*!< Offset: 0x08 Debug Core Register Data Register */ __IO uint32_t DEMCR; /*!< Offset: 0x0C Debug Exception and Monitor Control Register */ } CoreDebug_Type; /* Debug Halting Control and Status Register */ #define CoreDebug_DHCSR_DBGKEY_Pos 16 /*!< CoreDebug DHCSR: DBGKEY Position */ #define CoreDebug_DHCSR_DBGKEY_Msk (0xFFFFul << CoreDebug_DHCSR_DBGKEY_Pos) /*!< CoreDebug DHCSR: DBGKEY Mask */ #define CoreDebug_DHCSR_S_RESET_ST_Pos 25 /*!< CoreDebug DHCSR: S_RESET_ST Position */ #define CoreDebug_DHCSR_S_RESET_ST_Msk (1ul << CoreDebug_DHCSR_S_RESET_ST_Pos) /*!< CoreDebug DHCSR: S_RESET_ST Mask */ #define CoreDebug_DHCSR_S_RETIRE_ST_Pos 24 /*!< CoreDebug DHCSR: S_RETIRE_ST Position */ #define CoreDebug_DHCSR_S_RETIRE_ST_Msk (1ul << CoreDebug_DHCSR_S_RETIRE_ST_Pos) /*!< CoreDebug DHCSR: S_RETIRE_ST Mask */ #define CoreDebug_DHCSR_S_LOCKUP_Pos 19 /*!< CoreDebug DHCSR: S_LOCKUP Position */ #define CoreDebug_DHCSR_S_LOCKUP_Msk (1ul << CoreDebug_DHCSR_S_LOCKUP_Pos) /*!< CoreDebug DHCSR: S_LOCKUP Mask */ #define CoreDebug_DHCSR_S_SLEEP_Pos 18 /*!< CoreDebug DHCSR: S_SLEEP Position */ #define CoreDebug_DHCSR_S_SLEEP_Msk (1ul << CoreDebug_DHCSR_S_SLEEP_Pos) /*!< CoreDebug DHCSR: S_SLEEP Mask */ #define CoreDebug_DHCSR_S_HALT_Pos 17 /*!< CoreDebug DHCSR: S_HALT Position */ #define CoreDebug_DHCSR_S_HALT_Msk (1ul << CoreDebug_DHCSR_S_HALT_Pos) /*!< CoreDebug DHCSR: S_HALT Mask */ #define CoreDebug_DHCSR_S_REGRDY_Pos 16 /*!< CoreDebug DHCSR: S_REGRDY Position */ #define CoreDebug_DHCSR_S_REGRDY_Msk (1ul << CoreDebug_DHCSR_S_REGRDY_Pos) /*!< CoreDebug DHCSR: S_REGRDY Mask */ #define CoreDebug_DHCSR_C_MASKINTS_Pos 3 /*!< CoreDebug DHCSR: C_MASKINTS Position */ #define CoreDebug_DHCSR_C_MASKINTS_Msk (1ul << CoreDebug_DHCSR_C_MASKINTS_Pos) /*!< CoreDebug DHCSR: C_MASKINTS Mask */ #define CoreDebug_DHCSR_C_STEP_Pos 2 /*!< CoreDebug DHCSR: C_STEP Position */ #define CoreDebug_DHCSR_C_STEP_Msk (1ul << CoreDebug_DHCSR_C_STEP_Pos) /*!< CoreDebug DHCSR: C_STEP Mask */ #define CoreDebug_DHCSR_C_HALT_Pos 1 /*!< CoreDebug DHCSR: C_HALT Position */ #define CoreDebug_DHCSR_C_HALT_Msk (1ul << CoreDebug_DHCSR_C_HALT_Pos) /*!< CoreDebug DHCSR: C_HALT Mask */ #define CoreDebug_DHCSR_C_DEBUGEN_Pos 0 /*!< CoreDebug DHCSR: C_DEBUGEN Position */ #define CoreDebug_DHCSR_C_DEBUGEN_Msk (1ul << CoreDebug_DHCSR_C_DEBUGEN_Pos) /*!< CoreDebug DHCSR: C_DEBUGEN Mask */ /* Debug Core Register Selector Register */ #define CoreDebug_DCRSR_REGWnR_Pos 16 /*!< CoreDebug DCRSR: REGWnR Position */ #define CoreDebug_DCRSR_REGWnR_Msk (1ul << CoreDebug_DCRSR_REGWnR_Pos) /*!< CoreDebug DCRSR: REGWnR Mask */ #define CoreDebug_DCRSR_REGSEL_Pos 0 /*!< CoreDebug DCRSR: REGSEL Position */ #define CoreDebug_DCRSR_REGSEL_Msk (0x1Ful << CoreDebug_DCRSR_REGSEL_Pos) /*!< CoreDebug DCRSR: REGSEL Mask */ /* Debug Exception and Monitor Control Register */ #define CoreDebug_DEMCR_DWTENA_Pos 24 /*!< CoreDebug DEMCR: DWTENA Position */ #define CoreDebug_DEMCR_DWTENA_Msk (1ul << CoreDebug_DEMCR_DWTENA_Pos) /*!< CoreDebug DEMCR: DWTENA Mask */ #define CoreDebug_DEMCR_VC_HARDERR_Pos 10 /*!< CoreDebug DEMCR: VC_HARDERR Position */ #define CoreDebug_DEMCR_VC_HARDERR_Msk (1ul << CoreDebug_DEMCR_VC_HARDERR_Pos) /*!< CoreDebug DEMCR: VC_HARDERR Mask */ #define CoreDebug_DEMCR_VC_CORERESET_Pos 0 /*!< CoreDebug DEMCR: VC_CORERESET Position */ #define CoreDebug_DEMCR_VC_CORERESET_Msk (1ul << CoreDebug_DEMCR_VC_CORERESET_Pos) /*!< CoreDebug DEMCR: VC_CORERESET Mask */ /*@}*/ /* end of group CMSIS_CM0_CoreDebug */ /* Memory mapping of Cortex-M0 Hardware */ #define SCS_BASE (0xE000E000) /*!< System Control Space Base Address */ #define CoreDebug_BASE (0xE000EDF0) /*!< Core Debug Base Address */ #define SysTick_BASE (SCS_BASE + 0x0010) /*!< SysTick Base Address */ #define NVIC_BASE (SCS_BASE + 0x0100) /*!< NVIC Base Address */ #define SCB_BASE (SCS_BASE + 0x0D00) /*!< 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 */ #define CoreDebug ((CoreDebug_Type *) CoreDebug_BASE) /*!< Core Debug configuration struct */ /*@}*/ /* end of group CMSIS_CM0_core_register */ /******************************************************************************* * Hardware Abstraction Layer ******************************************************************************/ #if defined ( __CC_ARM ) #define __ASM __asm /*!< asm keyword for ARM Compiler */ #define __INLINE __inline /*!< inline keyword for ARM Compiler */ #elif defined ( __ICCARM__ ) #define __ASM __asm /*!< asm keyword for IAR Compiler */ #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ #elif defined ( __GNUC__ ) #define __ASM __asm /*!< asm keyword for GNU Compiler */ #define __INLINE inline /*!< inline keyword for GNU Compiler */ #elif defined ( __TASKING__ ) #define __ASM __asm /*!< asm keyword for TASKING Compiler */ #define __INLINE inline /*!< inline keyword for TASKING Compiler */ #endif /* ################### Compiler specific Intrinsics ########################### */ #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ /* ARM armcc specific functions */ #define __enable_fault_irq __enable_fiq #define __disable_fault_irq __disable_fiq #define __NOP __nop #define __WFI __wfi #define __WFE __wfe #define __SEV __sev #define __ISB() __isb(0) #define __DSB() __dsb(0) #define __DMB() __dmb(0) #define __REV __rev /* intrinsic void __enable_irq(); */ /* intrinsic void __disable_irq(); */ /** * @brief Return the Process Stack Pointer * * @return ProcessStackPointer * * Return the actual process stack pointer */ extern uint32_t __get_PSP(void); /** * @brief Set the Process Stack Pointer * * @param topOfProcStack Process Stack Pointer * * Assign the value ProcessStackPointer to the MSP * (process stack pointer) Cortex processor register */ extern void __set_PSP(uint32_t topOfProcStack); /** * @brief Return the Main Stack Pointer * * @return Main Stack Pointer * * Return the current value of the MSP (main stack pointer) * Cortex processor register */ extern uint32_t __get_MSP(void); /** * @brief Set the Main Stack Pointer * * @param topOfMainStack Main Stack Pointer * * Assign the value mainStackPointer to the MSP * (main stack pointer) Cortex processor register */ extern void __set_MSP(uint32_t topOfMainStack); /** * @brief Reverse byte order in unsigned short value * * @param value value to reverse * @return reversed value * * Reverse byte order in unsigned short value */ extern uint32_t __REV16(uint16_t value); /** * @brief Reverse byte order in signed short value with sign extension to integer * * @param value value to reverse * @return reversed value * * Reverse byte order in signed short value with sign extension to integer */ extern int32_t __REVSH(int16_t value); #if (__ARMCC_VERSION < 400000) /** * @brief Return the Priority Mask value * * @return PriMask * * Return state of the priority mask bit from the priority mask register */ extern uint32_t __get_PRIMASK(void); /** * @brief Set the Priority Mask value * * @param priMask PriMask * * Set the priority mask bit in the priority mask register */ extern void __set_PRIMASK(uint32_t priMask); /** * @brief Return the Control Register value * * @return Control value * * Return the content of the control register */ extern uint32_t __get_CONTROL(void); /** * @brief Set the Control Register value * * @param control Control value * * Set the control register */ extern void __set_CONTROL(uint32_t control); #else /* (__ARMCC_VERSION >= 400000) */ /** * @brief Return the Priority Mask value * * @return PriMask * * Return state of the priority mask bit from the priority mask register */ static __INLINE uint32_t __get_PRIMASK(void) { register uint32_t __regPriMask __ASM("primask"); return(__regPriMask); } /** * @brief Set the Priority Mask value * * @param priMask PriMask * * Set the priority mask bit in the priority mask register */ static __INLINE void __set_PRIMASK(uint32_t priMask) { register uint32_t __regPriMask __ASM("primask"); __regPriMask = (priMask); } /** * @brief Return the Control Register value * * @return Control value * * Return the content of the control register */ static __INLINE uint32_t __get_CONTROL(void) { register uint32_t __regControl __ASM("control"); return(__regControl); } /** * @brief Set the Control Register value * * @param control Control value * * Set the control register */ static __INLINE void __set_CONTROL(uint32_t control) { register uint32_t __regControl __ASM("control"); __regControl = control; } #endif /* __ARMCC_VERSION */ #elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ /* IAR iccarm specific functions */ #define __enable_irq __enable_interrupt /*!< global Interrupt enable */ #define __disable_irq __disable_interrupt /*!< global Interrupt disable */ static __INLINE void __enable_fault_irq() { __ASM ("cpsie f"); } static __INLINE void __disable_fault_irq() { __ASM ("cpsid f"); } #define __NOP __no_operation /*!< no operation intrinsic in IAR Compiler */ static __INLINE void __WFI() { __ASM ("wfi"); } static __INLINE void __WFE() { __ASM ("wfe"); } static __INLINE void __SEV() { __ASM ("sev"); } /* intrinsic void __ISB(void) */ /* intrinsic void __DSB(void) */ /* intrinsic void __DMB(void) */ /* intrinsic void __set_PRIMASK(); */ /* intrinsic void __get_PRIMASK(); */ /* intrinsic uint32_t __REV(uint32_t value); */ /* intrinsic uint32_t __REVSH(uint32_t value); */ /** * @brief Return the Process Stack Pointer * * @return ProcessStackPointer * * Return the actual process stack pointer */ extern uint32_t __get_PSP(void); /** * @brief Set the Process Stack Pointer * * @param topOfProcStack Process Stack Pointer * * Assign the value ProcessStackPointer to the MSP * (process stack pointer) Cortex processor register */ extern void __set_PSP(uint32_t topOfProcStack); /** * @brief Return the Main Stack Pointer * * @return Main Stack Pointer * * Return the current value of the MSP (main stack pointer) * Cortex processor register */ extern uint32_t __get_MSP(void); /** * @brief Set the Main Stack Pointer * * @param topOfMainStack Main Stack Pointer * * Assign the value mainStackPointer to the MSP * (main stack pointer) Cortex processor register */ extern void __set_MSP(uint32_t topOfMainStack); /** * @brief Reverse byte order in unsigned short value * * @param value value to reverse * @return reversed value * * Reverse byte order in unsigned short value */ extern uint32_t __REV16(uint16_t value); #elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ /* GNU gcc specific functions */ static __INLINE void __enable_irq() { __ASM volatile ("cpsie i"); } static __INLINE void __disable_irq() { __ASM volatile ("cpsid i"); } static __INLINE void __enable_fault_irq() { __ASM volatile ("cpsie f"); } static __INLINE void __disable_fault_irq() { __ASM volatile ("cpsid f"); } static __INLINE void __NOP() { __ASM volatile ("nop"); } static __INLINE void __WFI() { __ASM volatile ("wfi"); } static __INLINE void __WFE() { __ASM volatile ("wfe"); } static __INLINE void __SEV() { __ASM volatile ("sev"); } static __INLINE void __ISB() { __ASM volatile ("isb"); } static __INLINE void __DSB() { __ASM volatile ("dsb"); } static __INLINE void __DMB() { __ASM volatile ("dmb"); } /** * @brief Return the Process Stack Pointer * * @return ProcessStackPointer * * Return the actual process stack pointer */ extern uint32_t __get_PSP(void); /** * @brief Set the Process Stack Pointer * * @param topOfProcStack Process Stack Pointer * * Assign the value ProcessStackPointer to the MSP * (process stack pointer) Cortex processor register */ extern void __set_PSP(uint32_t topOfProcStack); /** * @brief Return the Main Stack Pointer * * @return Main Stack Pointer * * Return the current value of the MSP (main stack pointer) * Cortex processor register */ extern uint32_t __get_MSP(void); /** * @brief Set the Main Stack Pointer * * @param topOfMainStack Main Stack Pointer * * Assign the value mainStackPointer to the MSP * (main stack pointer) Cortex processor register */ extern void __set_MSP(uint32_t topOfMainStack); /** * @brief Return the Priority Mask value * * @return PriMask * * Return state of the priority mask bit from the priority mask register */ extern uint32_t __get_PRIMASK(void); /** * @brief Set the Priority Mask value * * @param priMask PriMask * * Set the priority mask bit in the priority mask register */ extern void __set_PRIMASK(uint32_t priMask); /** * @brief Return the Control Register value * * @return Control value * * Return the content of the control register */ extern uint32_t __get_CONTROL(void); /** * @brief Set the Control Register value * * @param control Control value * * Set the control register */ extern void __set_CONTROL(uint32_t control); /** * @brief Reverse byte order in integer value * * @param value value to reverse * @return reversed value * * Reverse byte order in integer value */ extern uint32_t __REV(uint32_t value); /** * @brief Reverse byte order in unsigned short value * * @param value value to reverse * @return reversed value * * Reverse byte order in unsigned short value */ extern uint32_t __REV16(uint16_t value); /** * @brief Reverse byte order in signed short value with sign extension to integer * * @param value value to reverse * @return reversed value * * Reverse byte order in signed short value with sign extension to integer */ extern int32_t __REVSH(int16_t value); #elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/ /* TASKING carm specific functions */ /* * The CMSIS functions have been implemented as intrinsics in the compiler. * Please use "carm -?i" to get an up to date list of all instrinsics, * Including the CMSIS ones. */ #endif /** @addtogroup CMSIS_CM0_Core_FunctionInterface CMSIS CM0 Core Function Interface Core Function Interface containing: - Core NVIC Functions - Core SysTick Functions - Core Reset Functions */ /*@{*/ /* ########################## NVIC functions #################################### */ /* Interrupt Priorities are WORD accessible only under ARMv6M */ /* The following MACROS handle generation of the register offset and byte masks */ #define _BIT_SHIFT(IRQn) ( (((uint32_t)(IRQn) ) & 0x03) * 8 ) #define _SHP_IDX(IRQn) ( ((((uint32_t)(IRQn) & 0x0F)-8) >> 2) ) #define _IP_IDX(IRQn) ( ((uint32_t)(IRQn) >> 2) ) /** * @brief Enable Interrupt in NVIC Interrupt Controller * * @param IRQn The positive number of the external interrupt to enable * * Enable a device specific interupt in the NVIC interrupt controller. * The interrupt number cannot be a negative value. */ static __INLINE void NVIC_EnableIRQ(IRQn_Type IRQn) { NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* enable interrupt */ } /** * @brief Disable the interrupt line for external interrupt specified * * @param IRQn The positive number of the external interrupt to disable * * Disable a device specific interupt in the NVIC interrupt controller. * The interrupt number cannot be a negative value. */ static __INLINE void NVIC_DisableIRQ(IRQn_Type IRQn) { NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* disable interrupt */ } /** * @brief Read the interrupt pending bit for a device specific interrupt source * * @param IRQn The number of the device specifc interrupt * @return 1 = interrupt pending, 0 = interrupt not pending * * Read the pending register in NVIC and return 1 if its status is pending, * otherwise it returns 0 */ static __INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) { return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if pending else 0 */ } /** * @brief Set the pending bit for an external interrupt * * @param IRQn The number of the interrupt for set pending * * Set the pending bit for the specified interrupt. * The interrupt number cannot be a negative value. */ static __INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) { NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* set interrupt pending */ } /** * @brief Clear the pending bit for an external interrupt * * @param IRQn The number of the interrupt for clear pending * * Clear the pending bit for the specified interrupt. * The interrupt number cannot be a negative value. */ static __INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) { NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ } /** * @brief Set the priority for an interrupt * * @param IRQn The number of the interrupt for set priority * @param priority The priority to set * * Set the priority for the specified interrupt. The interrupt * number can be positive to specify an external (device specific) * interrupt, or negative to specify an internal (core) interrupt. * * Note: The priority cannot be set for every core interrupt. */ static __INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority) { if(IRQn < 0) { SCB->SHP[_SHP_IDX(IRQn)] = (SCB->SHP[_SHP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) | (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); } else { NVIC->IPR[_IP_IDX(IRQn)] = (NVIC->IPR[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) | (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); } } /** * @brief Read the priority for an interrupt * * @param IRQn The number of the interrupt for get priority * @return The priority for the interrupt * * Read the priority for the specified interrupt. The interrupt * number can be positive to specify an external (device specific) * interrupt, or negative to specify an internal (core) interrupt. * * The returned priority value is automatically aligned to the implemented * priority bits of the microcontroller. * * Note: The priority cannot be set for every core interrupt. */ static __INLINE uint32_t NVIC_GetPriority(IRQn_Type IRQn) { if(IRQn < 0) { return((uint32_t)((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */ else { return((uint32_t)((NVIC->IPR[_IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ } /* ################################## SysTick function ############################################ */ #if (!defined (__Vendor_SysTickConfig)) || (__Vendor_SysTickConfig == 0) /** * @brief Initialize and start the SysTick counter and its interrupt. * * @param ticks number of ticks between two interrupts * @return 1 = failed, 0 = successful * * Initialise the system tick timer and its interrupt and start the * system tick timer / counter in free running mode to generate * periodical interrupts. */ static __INLINE uint32_t SysTick_Config(uint32_t ticks) { if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */ SysTick->LOAD = (ticks & SysTick_LOAD_RELOAD_Msk) - 1; /* set reload register */ NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */ SysTick->VAL = 0; /* 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 (0); /* Function successful */ } #endif /* ################################## Reset function ############################################ */ /** * @brief Initiate a system reset request. * * Initiate a system reset request to reset the MCU */ static __INLINE void NVIC_SystemReset(void) { SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) | SCB_AIRCR_SYSRESETREQ_Msk); __DSB(); /* Ensure completion of memory access */ while(1); /* wait until reset */ } /*@}*/ /* end of group CMSIS_CM0_Core_FunctionInterface */ #ifdef __cplusplus } #endif /*@}*/ /* end of group CMSIS_CM0_core_definitions */ #endif /* __CM0_CORE_H__ */ /*lint -restore */