diff options
Diffstat (limited to 'lib/cmsis/inc/core_cm0.h')
| -rw-r--r-- | lib/cmsis/inc/core_cm0.h | 690 |
1 files changed, 403 insertions, 287 deletions
diff --git a/lib/cmsis/inc/core_cm0.h b/lib/cmsis/inc/core_cm0.h index ab31de0ee8..711dad5517 100644 --- a/lib/cmsis/inc/core_cm0.h +++ b/lib/cmsis/inc/core_cm0.h @@ -1,13 +1,10 @@ /**************************************************************************//** * @file core_cm0.h * @brief CMSIS Cortex-M0 Core Peripheral Access Layer Header File - * @version V3.20 - * @date 25. February 2013 - * - * @note - * + * @version V4.30 + * @date 20. October 2015 ******************************************************************************/ -/* Copyright (c) 2009 - 2013 ARM LIMITED +/* Copyright (c) 2009 - 2015 ARM LIMITED All rights reserved. Redistribution and use in source and binary forms, with or without @@ -35,18 +32,23 @@ ---------------------------------------------------------------------------*/ -#if defined ( __ICCARM__ ) - #pragma system_include /* treat file as system include file for MISRA check */ +#if defined ( __ICCARM__ ) + #pragma system_include /* treat file as system include file for MISRA check */ +#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) + #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 -#ifndef __CORE_CM0_H_GENERIC -#define __CORE_CM0_H_GENERIC - -/** \page CMSIS_MISRA_Exceptions MISRA-C:2004 Compliance Exceptions +/** + \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> @@ -63,69 +65,107 @@ /******************************************************************************* * CMSIS definitions ******************************************************************************/ -/** \ingroup Cortex_M0 +/** + \ingroup Cortex_M0 @{ */ /* CMSIS CM0 definitions */ -#define __CM0_CMSIS_VERSION_MAIN (0x03) /*!< [31:16] CMSIS HAL main version */ -#define __CM0_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */ -#define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16) | \ - __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */ +#define __CM0_CMSIS_VERSION_MAIN (0x04U) /*!< [31:16] CMSIS HAL main version */ +#define __CM0_CMSIS_VERSION_SUB (0x1EU) /*!< [15:0] CMSIS HAL sub version */ +#define __CM0_CMSIS_VERSION ((__CM0_CMSIS_VERSION_MAIN << 16U) | \ + __CM0_CMSIS_VERSION_SUB ) /*!< CMSIS HAL version number */ -#define __CORTEX_M (0x00) /*!< Cortex-M Core */ +#define __CORTEX_M (0x00U) /*!< Cortex-M Core */ #if defined ( __CC_ARM ) - #define __ASM __asm /*!< asm keyword for ARM Compiler */ - #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ #define __STATIC_INLINE static __inline +#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) + #define __ASM __asm /*!< asm keyword for ARM Compiler */ + #define __INLINE __inline /*!< inline keyword for ARM Compiler */ + #define __STATIC_INLINE static __inline + +#elif defined ( __GNUC__ ) + #define __ASM __asm /*!< asm keyword for GNU Compiler */ + #define __INLINE inline /*!< inline keyword for GNU Compiler */ + #define __STATIC_INLINE static inline + #elif defined ( __ICCARM__ ) - #define __ASM __asm /*!< asm keyword for IAR Compiler */ + #define __ASM __asm /*!< asm keyword for IAR Compiler */ #define __INLINE inline /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */ #define __STATIC_INLINE static inline -#elif defined ( __GNUC__ ) - #define __ASM __asm /*!< asm keyword for GNU Compiler */ - #define __INLINE inline /*!< inline keyword for GNU Compiler */ +#elif defined ( __TMS470__ ) + #define __ASM __asm /*!< asm keyword for TI CCS Compiler */ #define __STATIC_INLINE static inline #elif defined ( __TASKING__ ) - #define __ASM __asm /*!< asm keyword for TASKING Compiler */ - #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + #define __ASM __asm /*!< asm keyword for TASKING Compiler */ + #define __INLINE inline /*!< inline keyword for TASKING Compiler */ + #define __STATIC_INLINE static inline + +#elif defined ( __CSMC__ ) + #define __packed + #define __ASM _asm /*!< asm keyword for COSMIC Compiler */ + #define __INLINE inline /*!< inline keyword for COSMIC Compiler. Use -pc99 on compile line */ #define __STATIC_INLINE static inline +#else + #error Unknown compiler #endif -/** __FPU_USED indicates whether an FPU is used or not. This core does not support an FPU at all +/** __FPU_USED indicates whether an FPU is used or not. + This core does not support an FPU at all */ -#define __FPU_USED 0 +#define __FPU_USED 0U #if defined ( __CC_ARM ) #if defined __TARGET_FPU_VFP - #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" + #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" #endif -#elif defined ( __ICCARM__ ) - #if defined __ARMVFP__ - #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" +#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) + #if defined __ARM_PCS_VFP + #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" #endif #elif defined ( __GNUC__ ) #if defined (__VFP_FP__) && !defined(__SOFTFP__) - #warning "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)" + #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 ( __TMS470__ ) + #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 <stdint.h> /* standard types definitions */ -#include <core_cmInstr.h> /* Core Instruction Access */ -#include <core_cmFunc.h> /* Core Function Access */ +#include "core_cmInstr.h" /* Core Instruction Access */ +#include "core_cmFunc.h" /* Core Function Access */ + +#ifdef __cplusplus +} +#endif #endif /* __CORE_CM0_H_GENERIC */ @@ -134,20 +174,24 @@ #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 0x0000 + #define __CM0_REV 0x0000U #warning "__CM0_REV not defined in device header file; using default!" #endif #ifndef __NVIC_PRIO_BITS - #define __NVIC_PRIO_BITS 2 + #define __NVIC_PRIO_BITS 2U #warning "__NVIC_PRIO_BITS not defined in device header file; using default!" #endif #ifndef __Vendor_SysTickConfig - #define __Vendor_SysTickConfig 0 + #define __Vendor_SysTickConfig 0U #warning "__Vendor_SysTickConfig not defined in device header file; using default!" #endif #endif @@ -161,12 +205,17 @@ \li for automatic generation of peripheral register debug information. */ #ifdef __cplusplus - #define __I volatile /*!< Defines 'read only' permissions */ + #define __I volatile /*!< Defines 'read only' permissions */ #else - #define __I volatile const /*!< Defines 'read only' permissions */ + #define __I volatile const /*!< Defines 'read only' permissions */ #endif -#define __O volatile /*!< Defines 'write only' permissions */ -#define __IO volatile /*!< Defines 'read / write' permissions */ +#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 */ @@ -180,300 +229,364 @@ - 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. +/** + \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. +/** + \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). +/** + \brief Union type to access the Application Program Status Register (APSR). */ typedef union { struct { -#if (__CORTEX_M != 0x04) - uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */ -#else - uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */ - uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */ - uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */ -#endif - uint32_t Q:1; /*!< bit: 27 Saturation condition flag */ - 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 */ + 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). + +/** + \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 */ + 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). +/** + \brief Union type to access the Special-Purpose Program Status Registers (xPSR). */ typedef union { struct { - uint32_t ISR:9; /*!< bit: 0.. 8 Exception number */ -#if (__CORTEX_M != 0x04) - uint32_t _reserved0:15; /*!< bit: 9..23 Reserved */ -#else - uint32_t _reserved0:7; /*!< bit: 9..15 Reserved */ - uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */ - uint32_t _reserved1:4; /*!< bit: 20..23 Reserved */ -#endif - uint32_t T:1; /*!< bit: 24 Thumb bit (read 0) */ - uint32_t IT:2; /*!< bit: 25..26 saved IT state (read 0) */ - uint32_t Q:1; /*!< bit: 27 Saturation condition flag */ - 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 */ + 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 */ -/** \brief Union type to access the Control Registers (CONTROL). +#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 nPRIV:1; /*!< bit: 0 Execution privilege in Thread mode */ - uint32_t SPSEL:1; /*!< bit: 1 Stack to be used */ - uint32_t FPCA:1; /*!< bit: 2 FP extension active flag */ - uint32_t _reserved0:29; /*!< bit: 3..31 Reserved */ - } b; /*!< Structure used for bit access */ - uint32_t w; /*!< Type used for word access */ + 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 +/** + \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). +/** + \brief Structure type to access the Nested Vectored Interrupt Controller (NVIC). */ typedef struct { - __IO uint32_t ISER[1]; /*!< Offset: 0x000 (R/W) Interrupt Set Enable Register */ - uint32_t RESERVED0[31]; - __IO uint32_t ICER[1]; /*!< Offset: 0x080 (R/W) Interrupt Clear Enable Register */ - uint32_t RSERVED1[31]; - __IO uint32_t ISPR[1]; /*!< Offset: 0x100 (R/W) Interrupt Set Pending Register */ - uint32_t RESERVED2[31]; - __IO uint32_t ICPR[1]; /*!< Offset: 0x180 (R/W) Interrupt Clear Pending Register */ - uint32_t RESERVED3[31]; - uint32_t RESERVED4[64]; - __IO uint32_t IP[8]; /*!< Offset: 0x300 (R/W) Interrupt Priority Register */ + __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 RSERVED1[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 +/** + \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). +/** + \brief Structure type to access the System Control Block (SCB). */ typedef struct { - __I uint32_t CPUID; /*!< Offset: 0x000 (R/ ) CPUID Base Register */ - __IO uint32_t ICSR; /*!< Offset: 0x004 (R/W) Interrupt Control and State Register */ - uint32_t RESERVED0; - __IO uint32_t AIRCR; /*!< Offset: 0x00C (R/W) Application Interrupt and Reset Control Register */ - __IO uint32_t SCR; /*!< Offset: 0x010 (R/W) System Control Register */ - __IO uint32_t CCR; /*!< Offset: 0x014 (R/W) Configuration Control Register */ - uint32_t RESERVED1; - __IO uint32_t SHP[2]; /*!< Offset: 0x01C (R/W) System Handlers Priority Registers. [0] is RESERVED */ - __IO uint32_t SHCSR; /*!< Offset: 0x024 (R/W) System Handler Control and State Register */ + __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 24 /*!< SCB CPUID: IMPLEMENTER Position */ +#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 20 /*!< SCB CPUID: VARIANT Position */ +#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 16 /*!< SCB CPUID: ARCHITECTURE Position */ +#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 4 /*!< SCB CPUID: PARTNO Position */ +#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 0 /*!< SCB CPUID: REVISION Position */ -#define SCB_CPUID_REVISION_Msk (0xFUL << SCB_CPUID_REVISION_Pos) /*!< SCB CPUID: REVISION 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 31 /*!< SCB ICSR: NMIPENDSET Position */ +#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 28 /*!< SCB ICSR: PENDSVSET Position */ +#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 27 /*!< SCB ICSR: PENDSVCLR Position */ +#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 26 /*!< SCB ICSR: PENDSTSET Position */ +#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 25 /*!< SCB ICSR: PENDSTCLR Position */ +#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 23 /*!< SCB ICSR: ISRPREEMPT Position */ +#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 22 /*!< SCB ICSR: ISRPENDING Position */ +#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 12 /*!< SCB ICSR: VECTPENDING Position */ +#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 0 /*!< SCB ICSR: VECTACTIVE Position */ -#define SCB_ICSR_VECTACTIVE_Msk (0x1FFUL << SCB_ICSR_VECTACTIVE_Pos) /*!< SCB ICSR: VECTACTIVE 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 16 /*!< SCB AIRCR: VECTKEY Position */ +#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 16 /*!< SCB AIRCR: VECTKEYSTAT Position */ +#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 15 /*!< SCB AIRCR: ENDIANESS Position */ +#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 2 /*!< SCB AIRCR: SYSRESETREQ Position */ +#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 1 /*!< SCB AIRCR: VECTCLRACTIVE Position */ +#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 4 /*!< SCB SCR: SEVONPEND Position */ +#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 2 /*!< SCB SCR: SLEEPDEEP Position */ +#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 1 /*!< SCB SCR: SLEEPONEXIT Position */ +#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 9 /*!< SCB CCR: STKALIGN Position */ +#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 3 /*!< SCB CCR: UNALIGN_TRP Position */ +#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 15 /*!< SCB SHCSR: SVCALLPENDED Position */ +#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. +/** + \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). +/** + \brief Structure type to access the System Timer (SysTick). */ typedef struct { - __IO uint32_t CTRL; /*!< Offset: 0x000 (R/W) SysTick Control and Status Register */ - __IO uint32_t LOAD; /*!< Offset: 0x004 (R/W) SysTick Reload Value Register */ - __IO uint32_t VAL; /*!< Offset: 0x008 (R/W) SysTick Current Value Register */ - __I uint32_t CALIB; /*!< Offset: 0x00C (R/ ) SysTick Calibration Register */ + __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 16 /*!< SysTick CTRL: COUNTFLAG Position */ +#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 2 /*!< SysTick CTRL: CLKSOURCE Position */ +#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 1 /*!< SysTick CTRL: TICKINT Position */ +#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 0 /*!< SysTick CTRL: ENABLE Position */ -#define SysTick_CTRL_ENABLE_Msk (1UL << SysTick_CTRL_ENABLE_Pos) /*!< SysTick CTRL: ENABLE 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 0 /*!< SysTick LOAD: RELOAD Position */ -#define SysTick_LOAD_RELOAD_Msk (0xFFFFFFUL << SysTick_LOAD_RELOAD_Pos) /*!< SysTick LOAD: RELOAD Mask */ +#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 0 /*!< SysTick VAL: CURRENT Position */ -#define SysTick_VAL_CURRENT_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick VAL: CURRENT Mask */ +#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 31 /*!< SysTick CALIB: NOREF Position */ +#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 30 /*!< SysTick CALIB: SKEW Position */ +#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 0 /*!< SysTick CALIB: TENMS Position */ -#define SysTick_CALIB_TENMS_Msk (0xFFFFFFUL << SysTick_VAL_CURRENT_Pos) /*!< SysTick CALIB: TENMS 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. +/** + \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_base Core Definitions - \brief Definitions for base addresses, unions, and structures. +/** + \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. + \return Masked and shifted value. +*/ +#define _VAL2FLD(field, value) ((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. + \return Masked and shifted bit field value. +*/ +#define _FLD2VAL(field, value) ((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 Cortex-M0 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 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 */ +#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 */ /*@} */ @@ -487,142 +600,145 @@ typedef struct - Core SysTick Functions - Core Register Access Functions ******************************************************************************/ -/** \defgroup CMSIS_Core_FunctionInterface Functions and Instructions Reference +/** + \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. - @{ +/** + \ingroup CMSIS_Core_FunctionInterface + \defgroup CMSIS_Core_NVICFunctions NVIC Functions + \brief Functions that manage interrupts and exceptions via the NVIC. + @{ */ /* 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 External Interrupt +#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) ) - The function enables a device-specific interrupt in the NVIC interrupt controller. - \param [in] IRQn External interrupt number. Value cannot be negative. +/** + \brief Enable External Interrupt + \details Enables a device-specific interrupt in the NVIC interrupt controller. + \param [in] IRQn External interrupt number. Value cannot be negative. */ __STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn) { - NVIC->ISER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); + NVIC->ISER[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); } -/** \brief Disable External Interrupt - - The function disables a device-specific interrupt in the NVIC interrupt controller. - - \param [in] IRQn External interrupt number. Value cannot be negative. +/** + \brief Disable External Interrupt + \details Disables a device-specific interrupt in the NVIC interrupt controller. + \param [in] IRQn External interrupt number. Value cannot be negative. */ __STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn) { - NVIC->ICER[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); + NVIC->ICER[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); } -/** \brief Get Pending Interrupt - - The function reads the pending register in the NVIC and returns the pending bit - for the specified interrupt. - - \param [in] IRQn Interrupt number. - - \return 0 Interrupt status is not pending. - \return 1 Interrupt status is pending. +/** + \brief Get Pending Interrupt + \details Reads the pending register in the NVIC and returns the pending bit for the specified interrupt. + \param [in] IRQn Interrupt number. + \return 0 Interrupt status is not pending. + \return 1 Interrupt status is pending. */ __STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn) { - return((uint32_t) ((NVIC->ISPR[0] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); + return((uint32_t)(((NVIC->ISPR[0U] & (1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL))) != 0UL) ? 1UL : 0UL)); } -/** \brief Set Pending Interrupt - - The function sets the pending bit of an external interrupt. - - \param [in] IRQn Interrupt number. Value cannot be negative. +/** + \brief Set Pending Interrupt + \details Sets the pending bit of an external interrupt. + \param [in] IRQn Interrupt number. Value cannot be negative. */ __STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn) { - NVIC->ISPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); + NVIC->ISPR[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); } -/** \brief Clear Pending Interrupt - - The function clears the pending bit of an external interrupt. - - \param [in] IRQn External interrupt number. Value cannot be negative. +/** + \brief Clear Pending Interrupt + \details Clears the pending bit of an external interrupt. + \param [in] IRQn External interrupt number. Value cannot be negative. */ __STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn) { - NVIC->ICPR[0] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ + NVIC->ICPR[0U] = (uint32_t)(1UL << (((uint32_t)(int32_t)IRQn) & 0x1FUL)); } -/** \brief Set Interrupt Priority - - The function sets the priority of an interrupt. - - \note The priority cannot be set for every core interrupt. - - \param [in] IRQn Interrupt number. - \param [in] priority Priority to set. +/** + \brief Set Interrupt Priority + \details Sets the priority of an interrupt. + \note The priority cannot be set for every core interrupt. + \param [in] IRQn Interrupt number. + \param [in] priority Priority to set. */ __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->IP[_IP_IDX(IRQn)] = (NVIC->IP[_IP_IDX(IRQn)] & ~(0xFF << _BIT_SHIFT(IRQn))) | - (((priority << (8 - __NVIC_PRIO_BITS)) & 0xFF) << _BIT_SHIFT(IRQn)); } + if ((int32_t)(IRQn) < 0) + { + 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))); + } + else + { + 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))); + } } -/** \brief Get Interrupt Priority - - The function reads the priority of an interrupt. The interrupt - number can be positive to specify an external (device specific) - interrupt, or negative to specify an internal (core) interrupt. - - - \param [in] IRQn Interrupt number. - \return Interrupt Priority. Value is aligned automatically to the implemented - priority bits of the microcontroller. +/** + \brief Get Interrupt Priority + \details Reads the priority of an interrupt. + The interrupt number can be positive to specify an external (device specific) interrupt, + or negative to specify an internal (core) interrupt. + \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(IRQn < 0) { - return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M0 system interrupts */ - else { - return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & 0xFF) >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ + if ((int32_t)(IRQn) < 0) + { + return((uint32_t)(((SCB->SHP[_SHP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS))); + } + else + { + return((uint32_t)(((NVIC->IP[ _IP_IDX(IRQn)] >> _BIT_SHIFT(IRQn) ) & (uint32_t)0xFFUL) >> (8U - __NVIC_PRIO_BITS))); + } } -/** \brief System Reset - - The function initiates a system reset request to reset the MCU. +/** + \brief System Reset + \details Initiates a system reset request to reset the MCU. */ __STATIC_INLINE void NVIC_SystemReset(void) { - __DSB(); /* Ensure all outstanding memory accesses included - buffered write are completed before reset */ - SCB->AIRCR = ((0x5FA << SCB_AIRCR_VECTKEY_Pos) | + __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 */ - while(1); /* wait until reset */ + __DSB(); /* Ensure completion of memory access */ + + for(;;) /* wait until reset */ + { + __NOP(); + } } /*@} end of CMSIS_Core_NVICFunctions */ @@ -630,40 +746,40 @@ __STATIC_INLINE void NVIC_SystemReset(void) /* ################################## SysTick function ############################################ */ -/** \ingroup CMSIS_Core_FunctionInterface - \defgroup CMSIS_Core_SysTickFunctions SysTick Functions - \brief Functions that configure the System. +/** + \ingroup CMSIS_Core_FunctionInterface + \defgroup CMSIS_Core_SysTickFunctions SysTick Functions + \brief Functions that configure the System. @{ */ -#if (__Vendor_SysTickConfig == 0) - -/** \brief System Tick Configuration - - The function 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. +#if (__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 - 1) > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value impossible */ + if ((ticks - 1UL) > SysTick_LOAD_RELOAD_Msk) + { + return (1UL); /* Reload value impossible */ + } - SysTick->LOAD = ticks - 1; /* set reload register */ - NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Systick Interrupt */ - SysTick->VAL = 0; /* Load the SysTick Counter Value */ + 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 (0); /* Function successful */ + SysTick_CTRL_ENABLE_Msk; /* Enable SysTick IRQ and SysTick Timer */ + return (0UL); /* Function successful */ } #endif @@ -673,10 +789,10 @@ __STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks) -#endif /* __CORE_CM0_H_DEPENDANT */ - -#endif /* __CMSIS_GENERIC */ - #ifdef __cplusplus } #endif + +#endif /* __CORE_CM0_H_DEPENDANT */ + +#endif /* __CMSIS_GENERIC */ |