X-Git-Url: http://git.asbjorn.biz/?p=rapper.git;a=blobdiff_plain;f=new_cmsis%2Fboards%2Fcortex_m3%2Fcore_cm3.h;fp=new_cmsis%2Fcore_cm3.h;h=fb8caa71351bc8d8e12885a4a79d0cb90cdd48f2;hp=b6f9696bfca99f9bbb965b9efc3c707aade55345;hb=2253dc3498d4ace7f07884ec6d40d654ca677571;hpb=678d5839c35477bcb24f2a29ebb5bce4ce5f8152 diff --git a/new_cmsis/core_cm3.h b/new_cmsis/boards/cortex_m3/core_cm3.h similarity index 94% rename from new_cmsis/core_cm3.h rename to new_cmsis/boards/cortex_m3/core_cm3.h index b6f9696..fb8caa7 100644 --- a/new_cmsis/core_cm3.h +++ b/new_cmsis/boards/cortex_m3/core_cm3.h @@ -1,1367 +1,1367 @@ -/****************************************************************************** - * @file: core_cm3.h - * @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Header File - * @version: V1.20 - * @date: 22. May 2009 - *---------------------------------------------------------------------------- - * - * Copyright (C) 2009 ARM Limited. All rights reserved. - * - * ARM Limited (ARM) is supplying this software for use with Cortex-Mx - * processor based microcontrollers. This file can be freely distributed - * within development tools that are supporting such ARM based processors. - * - * 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 __CM3_CORE_H__ -#define __CM3_CORE_H__ - -#ifdef __cplusplus - extern "C" { -#endif - -#define __CM3_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ -#define __CM3_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */ -#define __CM3_CMSIS_VERSION ((__CM3_CMSIS_VERSION_MAIN << 16) | __CM3_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ - -#define __CORTEX_M (0x03) /*!< Cortex core */ - -/** - * Lint configuration \n - * ----------------------- \n - * - * The following Lint messages will be suppressed and not shown: \n - * \n - * --- Error 10: --- \n - * register uint32_t __regBasePri __asm("basepri"); \n - * Error 10: Expecting ';' \n - * \n - * --- Error 530: --- \n - * return(__regBasePri); \n - * Warning 530: Symbol '__regBasePri' (line 264) not initialized \n - * \n - * --- Error 550: --- \n - * __regBasePri = (basePri & 0x1ff); \n - * } \n - * Warning 550: Symbol '__regBasePri' (line 271) not accessed \n - * \n - * --- Error 754: --- \n - * uint32_t RESERVED0[24]; \n - * Info 754: local structure member '' (line 109, file ./cm3_core.h) not referenced \n - * \n - * --- Error 750: --- \n - * #define __CM3_CORE_H__ \n - * Info 750: local macro '__CM3_CORE_H__' (line 43, file./cm3_core.h) not referenced \n - * \n - * --- Error 528: --- \n - * static __INLINE void NVIC_DisableIRQ(uint32_t IRQn) \n - * Warning 528: Symbol 'NVIC_DisableIRQ(unsigned int)' (line 419, file ./cm3_core.h) not referenced \n - * \n - * --- Error 751: --- \n - * } InterruptType_Type; \n - * Info 751: local typedef 'InterruptType_Type' (line 170, file ./cm3_core.h) not referenced \n - * \n - * \n - * Note: To re-enable a Message, insert a space before 'lint' * \n - * - */ - -/*lint -save */ -/*lint -e10 */ -/*lint -e530 */ -/*lint -e550 */ -/*lint -e754 */ -/*lint -e750 */ -/*lint -e528 */ -/*lint -e751 */ - - -#include /* Include standard types */ - -#if defined (__ICCARM__) - #include /* IAR Intrinsics */ -#endif - - -#ifndef __NVIC_PRIO_BITS - #define __NVIC_PRIO_BITS 4 /*!< 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 - ******************************************************************************/ - - -/* System Reset */ -#define NVIC_VECTRESET 0 /*!< Vector Reset Bit */ -#define NVIC_SYSRESETREQ 2 /*!< System Reset Request */ -#define NVIC_AIRCR_VECTKEY (0x5FA << 16) /*!< AIRCR Key for write access */ -#define NVIC_AIRCR_ENDIANESS 15 /*!< Endianess */ - -/* Core Debug */ -#define CoreDebug_DEMCR_TRCENA (1 << 24) /*!< DEMCR TRCENA enable */ -#define ITM_TCR_ITMENA 1 /*!< ITM enable */ - - - - -/* memory mapping struct for Nested Vectored Interrupt Controller (NVIC) */ -typedef struct -{ - __IO uint32_t ISER[8]; /*!< Interrupt Set Enable Register */ - uint32_t RESERVED0[24]; - __IO uint32_t ICER[8]; /*!< Interrupt Clear Enable Register */ - uint32_t RSERVED1[24]; - __IO uint32_t ISPR[8]; /*!< Interrupt Set Pending Register */ - uint32_t RESERVED2[24]; - __IO uint32_t ICPR[8]; /*!< Interrupt Clear Pending Register */ - uint32_t RESERVED3[24]; - __IO uint32_t IABR[8]; /*!< Interrupt Active bit Register */ - uint32_t RESERVED4[56]; - __IO uint8_t IP[240]; /*!< Interrupt Priority Register, 8Bit wide */ - uint32_t RESERVED5[644]; - __O uint32_t STIR; /*!< Software Trigger Interrupt Register */ -} NVIC_Type; - - -/* memory mapping struct for System Control Block */ -typedef struct -{ - __I uint32_t CPUID; /*!< CPU ID Base Register */ - __IO uint32_t ICSR; /*!< Interrupt Control State Register */ - __IO uint32_t VTOR; /*!< Vector Table Offset Register */ - __IO uint32_t AIRCR; /*!< Application Interrupt / Reset Control Register */ - __IO uint32_t SCR; /*!< System Control Register */ - __IO uint32_t CCR; /*!< Configuration Control Register */ - __IO uint8_t SHP[12]; /*!< System Handlers Priority Registers (4-7, 8-11, 12-15) */ - __IO uint32_t SHCSR; /*!< System Handler Control and State Register */ - __IO uint32_t CFSR; /*!< Configurable Fault Status Register */ - __IO uint32_t HFSR; /*!< Hard Fault Status Register */ - __IO uint32_t DFSR; /*!< Debug Fault Status Register */ - __IO uint32_t MMFAR; /*!< Mem Manage Address Register */ - __IO uint32_t BFAR; /*!< Bus Fault Address Register */ - __IO uint32_t AFSR; /*!< Auxiliary Fault Status Register */ - __I uint32_t PFR[2]; /*!< Processor Feature Register */ - __I uint32_t DFR; /*!< Debug Feature Register */ - __I uint32_t ADR; /*!< Auxiliary Feature Register */ - __I uint32_t MMFR[4]; /*!< Memory Model Feature Register */ - __I uint32_t ISAR[5]; /*!< ISA Feature Register */ -} SCB_Type; - - -/* memory mapping struct for SysTick */ -typedef struct -{ - __IO uint32_t CTRL; /*!< SysTick Control and Status Register */ - __IO uint32_t LOAD; /*!< SysTick Reload Value Register */ - __IO uint32_t VAL; /*!< SysTick Current Value Register */ - __I uint32_t CALIB; /*!< SysTick Calibration Register */ -} SysTick_Type; - - -/* memory mapping structur for ITM */ -typedef struct -{ - __O union - { - __O uint8_t u8; /*!< ITM Stimulus Port 8-bit */ - __O uint16_t u16; /*!< ITM Stimulus Port 16-bit */ - __O uint32_t u32; /*!< ITM Stimulus Port 32-bit */ - } PORT [32]; /*!< ITM Stimulus Port Registers */ - uint32_t RESERVED0[864]; - __IO uint32_t TER; /*!< ITM Trace Enable Register */ - uint32_t RESERVED1[15]; - __IO uint32_t TPR; /*!< ITM Trace Privilege Register */ - uint32_t RESERVED2[15]; - __IO uint32_t TCR; /*!< ITM Trace Control Register */ - uint32_t RESERVED3[29]; - __IO uint32_t IWR; /*!< ITM Integration Write Register */ - __IO uint32_t IRR; /*!< ITM Integration Read Register */ - __IO uint32_t IMCR; /*!< ITM Integration Mode Control Register */ - uint32_t RESERVED4[43]; - __IO uint32_t LAR; /*!< ITM Lock Access Register */ - __IO uint32_t LSR; /*!< ITM Lock Status Register */ - uint32_t RESERVED5[6]; - __I uint32_t PID4; /*!< ITM Product ID Registers */ - __I uint32_t PID5; - __I uint32_t PID6; - __I uint32_t PID7; - __I uint32_t PID0; - __I uint32_t PID1; - __I uint32_t PID2; - __I uint32_t PID3; - __I uint32_t CID0; - __I uint32_t CID1; - __I uint32_t CID2; - __I uint32_t CID3; -} ITM_Type; - - -/* memory mapped struct for Interrupt Type */ -typedef struct -{ - uint32_t RESERVED0; - __I uint32_t ICTR; /*!< Interrupt Control Type Register */ -#if ((defined __CM3_REV) && (__CM3_REV >= 0x200)) - __IO uint32_t ACTLR; /*!< Auxiliary Control Register */ -#else - uint32_t RESERVED1; -#endif -} InterruptType_Type; - - -/* Memory Protection Unit */ -#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) -typedef struct -{ - __I uint32_t TYPE; /*!< MPU Type Register */ - __IO uint32_t CTRL; /*!< MPU Control Register */ - __IO uint32_t RNR; /*!< MPU Region RNRber Register */ - __IO uint32_t RBAR; /*!< MPU Region Base Address Register */ - __IO uint32_t RASR; /*!< MPU Region Attribute and Size Register */ - __IO uint32_t RBAR_A1; /*!< MPU Alias 1 Region Base Address Register */ - __IO uint32_t RASR_A1; /*!< MPU Alias 1 Region Attribute and Size Register */ - __IO uint32_t RBAR_A2; /*!< MPU Alias 2 Region Base Address Register */ - __IO uint32_t RASR_A2; /*!< MPU Alias 2 Region Attribute and Size Register */ - __IO uint32_t RBAR_A3; /*!< MPU Alias 3 Region Base Address Register */ - __IO uint32_t RASR_A3; /*!< MPU Alias 3 Region Attribute and Size Register */ -} MPU_Type; -#endif - - -/* Core Debug Register */ -typedef struct -{ - __IO uint32_t DHCSR; /*!< Debug Halting Control and Status Register */ - __O uint32_t DCRSR; /*!< Debug Core Register Selector Register */ - __IO uint32_t DCRDR; /*!< Debug Core Register Data Register */ - __IO uint32_t DEMCR; /*!< Debug Exception and Monitor Control Register */ -} CoreDebug_Type; - - -/* Memory mapping of Cortex-M3 Hardware */ -#define SCS_BASE (0xE000E000) /*!< System Control Space Base Address */ -#define ITM_BASE (0xE0000000) /*!< ITM 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 InterruptType ((InterruptType_Type *) SCS_BASE) /*!< Interrupt Type Register */ -#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 ITM ((ITM_Type *) ITM_BASE) /*!< ITM configuration struct */ -#define CoreDebug ((CoreDebug_Type *) CoreDebug_BASE) /*!< Core Debug configuration struct */ - -#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) - #define MPU_BASE (SCS_BASE + 0x0D90) /*!< Memory Protection Unit */ - #define MPU ((MPU_Type*) MPU_BASE) /*!< Memory Protection Unit */ -#endif - - - -/******************************************************************************* - * 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 -#define __RBIT __rbit -#define __LDREXB(ptr) ((unsigned char ) __ldrex(ptr)) -#define __LDREXH(ptr) ((unsigned short) __ldrex(ptr)) -#define __LDREXW(ptr) ((unsigned int ) __ldrex(ptr)) -#define __STREXB(value, ptr) __strex(value, ptr) -#define __STREXH(value, ptr) __strex(value, ptr) -#define __STREXW(value, ptr) __strex(value, ptr) - - -/* intrinsic unsigned long long __ldrexd(volatile void *ptr) */ -/* intrinsic int __strexd(unsigned long long val, volatile void *ptr) */ -/* intrinsic void __enable_irq(); */ -/* intrinsic void __disable_irq(); */ - - -/** - * @brief Return the Process Stack Pointer - * - * @param none - * @return uint32_t ProcessStackPointer - * - * Return the actual process stack pointer - */ -extern uint32_t __get_PSP(void); - -/** - * @brief Set the Process Stack Pointer - * - * @param uint32_t Process Stack Pointer - * @return none - * - * 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 - * - * @param none - * @return uint32_t 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 uint32_t Main Stack Pointer - * @return none - * - * 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 uint16_t value to reverse - * @return uint32_t 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 int16_t value to reverse - * @return int32_t 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 Remove the exclusive lock created by ldrex - * - * @param none - * @return none - * - * Removes the exclusive lock which is created by ldrex. - */ -extern void __CLREX(void); - -/** - * @brief Return the Base Priority value - * - * @param none - * @return uint32_t BasePriority - * - * Return the content of the base priority register - */ -extern uint32_t __get_BASEPRI(void); - -/** - * @brief Set the Base Priority value - * - * @param uint32_t BasePriority - * @return none - * - * Set the base priority register - */ -extern void __set_BASEPRI(uint32_t basePri); - -/** - * @brief Return the Priority Mask value - * - * @param none - * @return uint32_t PriMask - * - * Return the state of the priority mask bit from the priority mask - * register - */ -extern uint32_t __get_PRIMASK(void); - -/** - * @brief Set the Priority Mask value - * - * @param uint32_t PriMask - * @return none - * - * Set the priority mask bit in the priority mask register - */ -extern void __set_PRIMASK(uint32_t priMask); - -/** - * @brief Return the Fault Mask value - * - * @param none - * @return uint32_t FaultMask - * - * Return the content of the fault mask register - */ -extern uint32_t __get_FAULTMASK(void); - -/** - * @brief Set the Fault Mask value - * - * @param uint32_t faultMask value - * @return none - * - * Set the fault mask register - */ -extern void __set_FAULTMASK(uint32_t faultMask); - -/** - * @brief Return the Control Register value - * - * @param none - * @return uint32_t Control value - * - * Return the content of the control register - */ -extern uint32_t __get_CONTROL(void); - -/** - * @brief Set the Control Register value - * - * @param uint32_t Control value - * @return none - * - * Set the control register - */ -extern void __set_CONTROL(uint32_t control); - -#else /* (__ARMCC_VERSION >= 400000) */ - - -/** - * @brief Remove the exclusive lock created by ldrex - * - * @param none - * @return none - * - * Removes the exclusive lock which is created by ldrex. - */ -#define __CLREX __clrex - -/** - * @brief Return the Base Priority value - * - * @param none - * @return uint32_t BasePriority - * - * Return the content of the base priority register - */ -static __INLINE uint32_t __get_BASEPRI(void) -{ - register uint32_t __regBasePri __ASM("basepri"); - return(__regBasePri); -} - -/** - * @brief Set the Base Priority value - * - * @param uint32_t BasePriority - * @return none - * - * Set the base priority register - */ -static __INLINE void __set_BASEPRI(uint32_t basePri) -{ - register uint32_t __regBasePri __ASM("basepri"); - __regBasePri = (basePri & 0x1ff); -} - -/** - * @brief Return the Priority Mask value - * - * @param none - * @return uint32_t PriMask - * - * Return the 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 uint32_t PriMask - * @return none - * - * 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 Fault Mask value - * - * @param none - * @return uint32_t FaultMask - * - * Return the content of the fault mask register - */ -static __INLINE uint32_t __get_FAULTMASK(void) -{ - register uint32_t __regFaultMask __ASM("faultmask"); - return(__regFaultMask); -} - -/** - * @brief Set the Fault Mask value - * - * @param uint32_t faultMask value - * @return none - * - * Set the fault mask register - */ -static __INLINE void __set_FAULTMASK(uint32_t faultMask) -{ - register uint32_t __regFaultMask __ASM("faultmask"); - __regFaultMask = (faultMask & 1); -} - -/** - * @brief Return the Control Register value - * - * @param none - * @return uint32_t 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 uint32_t Control value - * @return none - * - * 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"); } -static __INLINE void __CLREX() { __ASM ("clrex"); } - -/* intrinsic void __ISB(void) */ -/* intrinsic void __DSB(void) */ -/* intrinsic void __DMB(void) */ -/* intrinsic void __set_PRIMASK(); */ -/* intrinsic void __get_PRIMASK(); */ -/* intrinsic void __set_FAULTMASK(); */ -/* intrinsic void __get_FAULTMASK(); */ -/* intrinsic uint32_t __REV(uint32_t value); */ -/* intrinsic uint32_t __REVSH(uint32_t value); */ -/* intrinsic unsigned long __STREX(unsigned long, unsigned long); */ -/* intrinsic unsigned long __LDREX(unsigned long *); */ - - -/** - * @brief Return the Process Stack Pointer - * - * @param none - * @return uint32_t ProcessStackPointer - * - * Return the actual process stack pointer - */ -extern uint32_t __get_PSP(void); - -/** - * @brief Set the Process Stack Pointer - * - * @param uint32_t Process Stack Pointer - * @return none - * - * 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 - * - * @param none - * @return uint32_t 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 uint32_t Main Stack Pointer - * @return none - * - * 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 uint16_t value to reverse - * @return uint32_t reversed value - * - * Reverse byte order in unsigned short value - */ -extern uint32_t __REV16(uint16_t value); - -/** - * @brief Reverse bit order of value - * - * @param uint32_t value to reverse - * @return uint32_t reversed value - * - * Reverse bit order of value - */ -extern uint32_t __RBIT(uint32_t value); - -/** - * @brief LDR Exclusive - * - * @param uint8_t* address - * @return uint8_t value of (*address) - * - * Exclusive LDR command - */ -extern uint8_t __LDREXB(uint8_t *addr); - -/** - * @brief LDR Exclusive - * - * @param uint16_t* address - * @return uint16_t value of (*address) - * - * Exclusive LDR command - */ -extern uint16_t __LDREXH(uint16_t *addr); - -/** - * @brief LDR Exclusive - * - * @param uint32_t* address - * @return uint32_t value of (*address) - * - * Exclusive LDR command - */ -extern uint32_t __LDREXW(uint32_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint8_t *address - * @param uint8_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXB(uint8_t value, uint8_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint16_t *address - * @param uint16_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXH(uint16_t value, uint16_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint32_t *address - * @param uint32_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXW(uint32_t value, uint32_t *addr); - - - -#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"); } -static __INLINE void __CLREX() { __ASM volatile ("clrex"); } - - -/** - * @brief Return the Process Stack Pointer - * - * @param none - * @return uint32_t ProcessStackPointer - * - * Return the actual process stack pointer - */ -extern uint32_t __get_PSP(void); - -/** - * @brief Set the Process Stack Pointer - * - * @param uint32_t Process Stack Pointer - * @return none - * - * 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 - * - * @param none - * @return uint32_t 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 uint32_t Main Stack Pointer - * @return none - * - * Assign the value mainStackPointer to the MSP - * (main stack pointer) Cortex processor register - */ -extern void __set_MSP(uint32_t topOfMainStack); - -/** - * @brief Return the Base Priority value - * - * @param none - * @return uint32_t BasePriority - * - * Return the content of the base priority register - */ -extern uint32_t __get_BASEPRI(void); - -/** - * @brief Set the Base Priority value - * - * @param uint32_t BasePriority - * @return none - * - * Set the base priority register - */ -extern void __set_BASEPRI(uint32_t basePri); - -/** - * @brief Return the Priority Mask value - * - * @param none - * @return uint32_t PriMask - * - * Return the state of the priority mask bit from the priority mask - * register - */ -extern uint32_t __get_PRIMASK(void); - -/** - * @brief Set the Priority Mask value - * - * @param uint32_t PriMask - * @return none - * - * Set the priority mask bit in the priority mask register - */ -extern void __set_PRIMASK(uint32_t priMask); - -/** - * @brief Return the Fault Mask value - * - * @param none - * @return uint32_t FaultMask - * - * Return the content of the fault mask register - */ -extern uint32_t __get_FAULTMASK(void); - -/** - * @brief Set the Fault Mask value - * - * @param uint32_t faultMask value - * @return none - * - * Set the fault mask register - */ -extern void __set_FAULTMASK(uint32_t faultMask); - -/** - * @brief Return the Control Register value -* -* @param none -* @return uint32_t Control value - * - * Return the content of the control register - */ -extern uint32_t __get_CONTROL(void); - -/** - * @brief Set the Control Register value - * - * @param uint32_t Control value - * @return none - * - * Set the control register - */ -extern void __set_CONTROL(uint32_t control); - -/** - * @brief Reverse byte order in integer value - * - * @param uint32_t value to reverse - * @return uint32_t reversed value - * - * Reverse byte order in integer value - */ -extern uint32_t __REV(uint32_t value); - -/** - * @brief Reverse byte order in unsigned short value - * - * @param uint16_t value to reverse - * @return uint32_t reversed value - * - * Reverse byte order in unsigned short value - */ -extern uint32_t __REV16(uint16_t value); - -/* - * Reverse byte order in signed short value with sign extension to integer - * - * @param int16_t value to reverse - * @return int32_t reversed value - * - * @brief Reverse byte order in signed short value with sign extension to integer - */ -extern int32_t __REVSH(int16_t value); - -/** - * @brief Reverse bit order of value - * - * @param uint32_t value to reverse - * @return uint32_t reversed value - * - * Reverse bit order of value - */ -extern uint32_t __RBIT(uint32_t value); - -/** - * @brief LDR Exclusive - * - * @param uint8_t* address - * @return uint8_t value of (*address) - * - * Exclusive LDR command - */ -extern uint8_t __LDREXB(uint8_t *addr); - -/** - * @brief LDR Exclusive - * - * @param uint16_t* address - * @return uint16_t value of (*address) - * - * Exclusive LDR command - */ -extern uint16_t __LDREXH(uint16_t *addr); - -/** - * @brief LDR Exclusive - * - * @param uint32_t* address - * @return uint32_t value of (*address) - * - * Exclusive LDR command - */ -extern uint32_t __LDREXW(uint32_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint8_t *address - * @param uint8_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXB(uint8_t value, uint8_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint16_t *address - * @param uint16_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXH(uint16_t value, uint16_t *addr); - -/** - * @brief STR Exclusive - * - * @param uint32_t *address - * @param uint32_t value to store - * @return uint32_t successful / failed - * - * Exclusive STR command - */ -extern uint32_t __STREXW(uint32_t value, uint32_t *addr); - - -#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 - - - -/* ########################## NVIC functions #################################### */ - - -/** - * @brief Set the Priority Grouping in NVIC Interrupt Controller - * - * @param uint32_t priority_grouping is priority grouping field - * @return none - * - * Set the priority grouping field using the required unlock sequence. - * The parameter priority_grouping is assigned to the field - * SCB->AIRCR [10:8] PRIGROUP field. Only values from 0..7 are used. - * In case of a conflict between priority grouping and available - * priority bits (__NVIC_PRIO_BITS) the smallest possible priority group is set. - */ -static __INLINE void NVIC_SetPriorityGrouping(uint32_t PriorityGroup) -{ - uint32_t reg_value; - uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ - - reg_value = SCB->AIRCR; /* read old register configuration */ - reg_value &= ~((0xFFFFU << 16) | (0x0F << 8)); /* clear bits to change */ - reg_value = ((reg_value | NVIC_AIRCR_VECTKEY | (PriorityGroupTmp << 8))); /* Insert write key and priorty group */ - SCB->AIRCR = reg_value; -} - -/** - * @brief Get the Priority Grouping from NVIC Interrupt Controller - * - * @param none - * @return uint32_t priority grouping field - * - * Get the priority grouping from NVIC Interrupt Controller. - * priority grouping is SCB->AIRCR [10:8] PRIGROUP field. - */ -static __INLINE uint32_t NVIC_GetPriorityGrouping(void) -{ - return ((SCB->AIRCR >> 8) & 0x07); /* read priority grouping field */ -} - -/** - * @brief Enable Interrupt in NVIC Interrupt Controller - * - * @param IRQn_Type IRQn specifies the interrupt number - * @return none - * - * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* enable interrupt */ -} - -/** - * @brief Disable the interrupt line for external interrupt specified - * - * @param IRQn_Type IRQn is the positive number of the external interrupt - * @return none - * - * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* disable interrupt */ -} - -/** - * @brief Read the interrupt pending bit for a device specific interrupt source - * - * @param IRQn_Type IRQn is the number of the device specifc interrupt - * @return uint32_t 1 if pending interrupt else 0 - * - * 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[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if pending else 0 */ -} - -/** - * @brief Set the pending bit for an external interrupt - * - * @param IRQn_Type IRQn is the Number of the interrupt - * @return none - * - * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* set interrupt pending */ -} - -/** - * @brief Clear the pending bit for an external interrupt - * - * @param IRQn_Type IRQn is the Number of the interrupt - * @return none - * - * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ -} - -/** - * @brief Read the active bit for an external interrupt - * - * @param IRQn_Type IRQn is the Number of the interrupt - * @return uint32_t 1 if active else 0 - * - * Read the active register in NVIC and returns 1 if its status is active, - * otherwise it returns 0. - */ -static __INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn) -{ - return((uint32_t)((NVIC->IABR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if active else 0 */ -} - -/** - * @brief Set the priority for an interrupt - * - * @param IRQn_Type IRQn is the Number of the interrupt - * @param priority is the priority for the interrupt - * @return none - * - * 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. \n - * - * 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[((uint32_t)(IRQn) & 0xF)-4] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for Cortex-M3 System Interrupts */ - else { - NVIC->IP[(uint32_t)(IRQn)] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for device specific Interrupts */ -} - -/** - * @brief Read the priority for an interrupt - * - * @param IRQn_Type IRQn is the Number of the interrupt - * @return uint32_t priority is 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[((uint32_t)(IRQn) & 0xF)-4] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M3 system interrupts */ - else { - return((uint32_t)(NVIC->IP[(uint32_t)(IRQn)] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ -} - - -/** - * @brief Encode the priority for an interrupt - * - * @param uint32_t PriorityGroup is the used priority group - * @param uint32_t PreemptPriority is the preemptive priority value (starting from 0) - * @param uint32_t SubPriority is the sub priority value (starting from 0) - * @return uint32_t the priority for the interrupt - * - * Encode the priority for an interrupt with the given priority group, - * preemptive priority value and sub priority value. - * In case of a conflict between priority grouping and available - * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. - * - * The returned priority value can be used for NVIC_SetPriority(...) function - */ -static __INLINE uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority) -{ - uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ - uint32_t PreemptPriorityBits; - uint32_t SubPriorityBits; - - PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; - SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; - - return ( - ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) | - ((SubPriority & ((1 << (SubPriorityBits )) - 1))) - ); -} - - -/** - * @brief Decode the priority of an interrupt - * - * @param uint32_t Priority the priority for the interrupt - * @param uint32_t PrioGroup is the used priority group - * @param uint32_t* pPreemptPrio is the preemptive priority value (starting from 0) - * @param uint32_t* pSubPrio is the sub priority value (starting from 0) - * @return none - * - * Decode an interrupt priority value with the given priority group to - * preemptive priority value and sub priority value. - * In case of a conflict between priority grouping and available - * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. - * - * The priority value can be retrieved with NVIC_GetPriority(...) function - */ -static __INLINE void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) -{ - uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ - uint32_t PreemptPriorityBits; - uint32_t SubPriorityBits; - - PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; - SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; - - *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1); - *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1); -} - - - -/* ################################## SysTick function ############################################ */ - -#if (!defined (__Vendor_SysTickConfig)) || (__Vendor_SysTickConfig == 0) - -/* SysTick constants */ -#define SYSTICK_ENABLE 0 /* Config-Bit to start or stop the SysTick Timer */ -#define SYSTICK_TICKINT 1 /* Config-Bit to enable or disable the SysTick interrupt */ -#define SYSTICK_CLKSOURCE 2 /* Clocksource has the offset 2 in SysTick Control and Status Register */ -#define SYSTICK_MAXCOUNT ((1<<24) -1) /* SysTick MaxCount */ - -/** - * @brief Initialize and start the SysTick counter and its interrupt. - * - * @param uint32_t ticks is the number of ticks between two interrupts - * @return none - * - * 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_MAXCOUNT) return (1); /* Reload value impossible */ - - SysTick->LOAD = (ticks & SYSTICK_MAXCOUNT) - 1; /* set reload register */ - NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */ - SysTick->VAL = (0x00); /* Load the SysTick Counter Value */ - SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (1<AIRCR = (NVIC_AIRCR_VECTKEY | (SCB->AIRCR & (0x700)) | (1<DEMCR & CoreDebug_DEMCR_TRCENA) && - (ITM->TCR & ITM_TCR_ITMENA) && - (ITM->TER & (1UL << 0)) ) - { - while (ITM->PORT[0].u32 == 0); - ITM->PORT[0].u8 = (uint8_t) ch; - } - return (ch); -} - -#ifdef __cplusplus -} -#endif - -#endif /* __CM3_CORE_H__ */ - -/*lint -restore */ +/****************************************************************************** + * @file: core_cm3.h + * @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Header File + * @version: V1.20 + * @date: 22. May 2009 + *---------------------------------------------------------------------------- + * + * Copyright (C) 2009 ARM Limited. All rights reserved. + * + * ARM Limited (ARM) is supplying this software for use with Cortex-Mx + * processor based microcontrollers. This file can be freely distributed + * within development tools that are supporting such ARM based processors. + * + * 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 __CM3_CORE_H__ +#define __CM3_CORE_H__ + +#ifdef __cplusplus + extern "C" { +#endif + +#define __CM3_CMSIS_VERSION_MAIN (0x01) /*!< [31:16] CMSIS HAL main version */ +#define __CM3_CMSIS_VERSION_SUB (0x20) /*!< [15:0] CMSIS HAL sub version */ +#define __CM3_CMSIS_VERSION ((__CM3_CMSIS_VERSION_MAIN << 16) | __CM3_CMSIS_VERSION_SUB) /*!< CMSIS HAL version number */ + +#define __CORTEX_M (0x03) /*!< Cortex core */ + +/** + * Lint configuration \n + * ----------------------- \n + * + * The following Lint messages will be suppressed and not shown: \n + * \n + * --- Error 10: --- \n + * register uint32_t __regBasePri __asm("basepri"); \n + * Error 10: Expecting ';' \n + * \n + * --- Error 530: --- \n + * return(__regBasePri); \n + * Warning 530: Symbol '__regBasePri' (line 264) not initialized \n + * \n + * --- Error 550: --- \n + * __regBasePri = (basePri & 0x1ff); \n + * } \n + * Warning 550: Symbol '__regBasePri' (line 271) not accessed \n + * \n + * --- Error 754: --- \n + * uint32_t RESERVED0[24]; \n + * Info 754: local structure member '' (line 109, file ./cm3_core.h) not referenced \n + * \n + * --- Error 750: --- \n + * #define __CM3_CORE_H__ \n + * Info 750: local macro '__CM3_CORE_H__' (line 43, file./cm3_core.h) not referenced \n + * \n + * --- Error 528: --- \n + * static __INLINE void NVIC_DisableIRQ(uint32_t IRQn) \n + * Warning 528: Symbol 'NVIC_DisableIRQ(unsigned int)' (line 419, file ./cm3_core.h) not referenced \n + * \n + * --- Error 751: --- \n + * } InterruptType_Type; \n + * Info 751: local typedef 'InterruptType_Type' (line 170, file ./cm3_core.h) not referenced \n + * \n + * \n + * Note: To re-enable a Message, insert a space before 'lint' * \n + * + */ + +/*lint -save */ +/*lint -e10 */ +/*lint -e530 */ +/*lint -e550 */ +/*lint -e754 */ +/*lint -e750 */ +/*lint -e528 */ +/*lint -e751 */ + + +#include /* Include standard types */ + +#if defined (__ICCARM__) + #include /* IAR Intrinsics */ +#endif + + +#ifndef __NVIC_PRIO_BITS + #define __NVIC_PRIO_BITS 4 /*!< 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 + ******************************************************************************/ + + +/* System Reset */ +#define NVIC_VECTRESET 0 /*!< Vector Reset Bit */ +#define NVIC_SYSRESETREQ 2 /*!< System Reset Request */ +#define NVIC_AIRCR_VECTKEY (0x5FA << 16) /*!< AIRCR Key for write access */ +#define NVIC_AIRCR_ENDIANESS 15 /*!< Endianess */ + +/* Core Debug */ +#define CoreDebug_DEMCR_TRCENA (1 << 24) /*!< DEMCR TRCENA enable */ +#define ITM_TCR_ITMENA 1 /*!< ITM enable */ + + + + +/* memory mapping struct for Nested Vectored Interrupt Controller (NVIC) */ +typedef struct +{ + __IO uint32_t ISER[8]; /*!< Interrupt Set Enable Register */ + uint32_t RESERVED0[24]; + __IO uint32_t ICER[8]; /*!< Interrupt Clear Enable Register */ + uint32_t RSERVED1[24]; + __IO uint32_t ISPR[8]; /*!< Interrupt Set Pending Register */ + uint32_t RESERVED2[24]; + __IO uint32_t ICPR[8]; /*!< Interrupt Clear Pending Register */ + uint32_t RESERVED3[24]; + __IO uint32_t IABR[8]; /*!< Interrupt Active bit Register */ + uint32_t RESERVED4[56]; + __IO uint8_t IP[240]; /*!< Interrupt Priority Register, 8Bit wide */ + uint32_t RESERVED5[644]; + __O uint32_t STIR; /*!< Software Trigger Interrupt Register */ +} NVIC_Type; + + +/* memory mapping struct for System Control Block */ +typedef struct +{ + __I uint32_t CPUID; /*!< CPU ID Base Register */ + __IO uint32_t ICSR; /*!< Interrupt Control State Register */ + __IO uint32_t VTOR; /*!< Vector Table Offset Register */ + __IO uint32_t AIRCR; /*!< Application Interrupt / Reset Control Register */ + __IO uint32_t SCR; /*!< System Control Register */ + __IO uint32_t CCR; /*!< Configuration Control Register */ + __IO uint8_t SHP[12]; /*!< System Handlers Priority Registers (4-7, 8-11, 12-15) */ + __IO uint32_t SHCSR; /*!< System Handler Control and State Register */ + __IO uint32_t CFSR; /*!< Configurable Fault Status Register */ + __IO uint32_t HFSR; /*!< Hard Fault Status Register */ + __IO uint32_t DFSR; /*!< Debug Fault Status Register */ + __IO uint32_t MMFAR; /*!< Mem Manage Address Register */ + __IO uint32_t BFAR; /*!< Bus Fault Address Register */ + __IO uint32_t AFSR; /*!< Auxiliary Fault Status Register */ + __I uint32_t PFR[2]; /*!< Processor Feature Register */ + __I uint32_t DFR; /*!< Debug Feature Register */ + __I uint32_t ADR; /*!< Auxiliary Feature Register */ + __I uint32_t MMFR[4]; /*!< Memory Model Feature Register */ + __I uint32_t ISAR[5]; /*!< ISA Feature Register */ +} SCB_Type; + + +/* memory mapping struct for SysTick */ +typedef struct +{ + __IO uint32_t CTRL; /*!< SysTick Control and Status Register */ + __IO uint32_t LOAD; /*!< SysTick Reload Value Register */ + __IO uint32_t VAL; /*!< SysTick Current Value Register */ + __I uint32_t CALIB; /*!< SysTick Calibration Register */ +} SysTick_Type; + + +/* memory mapping structur for ITM */ +typedef struct +{ + __O union + { + __O uint8_t u8; /*!< ITM Stimulus Port 8-bit */ + __O uint16_t u16; /*!< ITM Stimulus Port 16-bit */ + __O uint32_t u32; /*!< ITM Stimulus Port 32-bit */ + } PORT [32]; /*!< ITM Stimulus Port Registers */ + uint32_t RESERVED0[864]; + __IO uint32_t TER; /*!< ITM Trace Enable Register */ + uint32_t RESERVED1[15]; + __IO uint32_t TPR; /*!< ITM Trace Privilege Register */ + uint32_t RESERVED2[15]; + __IO uint32_t TCR; /*!< ITM Trace Control Register */ + uint32_t RESERVED3[29]; + __IO uint32_t IWR; /*!< ITM Integration Write Register */ + __IO uint32_t IRR; /*!< ITM Integration Read Register */ + __IO uint32_t IMCR; /*!< ITM Integration Mode Control Register */ + uint32_t RESERVED4[43]; + __IO uint32_t LAR; /*!< ITM Lock Access Register */ + __IO uint32_t LSR; /*!< ITM Lock Status Register */ + uint32_t RESERVED5[6]; + __I uint32_t PID4; /*!< ITM Product ID Registers */ + __I uint32_t PID5; + __I uint32_t PID6; + __I uint32_t PID7; + __I uint32_t PID0; + __I uint32_t PID1; + __I uint32_t PID2; + __I uint32_t PID3; + __I uint32_t CID0; + __I uint32_t CID1; + __I uint32_t CID2; + __I uint32_t CID3; +} ITM_Type; + + +/* memory mapped struct for Interrupt Type */ +typedef struct +{ + uint32_t RESERVED0; + __I uint32_t ICTR; /*!< Interrupt Control Type Register */ +#if ((defined __CM3_REV) && (__CM3_REV >= 0x200)) + __IO uint32_t ACTLR; /*!< Auxiliary Control Register */ +#else + uint32_t RESERVED1; +#endif +} InterruptType_Type; + + +/* Memory Protection Unit */ +#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) +typedef struct +{ + __I uint32_t TYPE; /*!< MPU Type Register */ + __IO uint32_t CTRL; /*!< MPU Control Register */ + __IO uint32_t RNR; /*!< MPU Region RNRber Register */ + __IO uint32_t RBAR; /*!< MPU Region Base Address Register */ + __IO uint32_t RASR; /*!< MPU Region Attribute and Size Register */ + __IO uint32_t RBAR_A1; /*!< MPU Alias 1 Region Base Address Register */ + __IO uint32_t RASR_A1; /*!< MPU Alias 1 Region Attribute and Size Register */ + __IO uint32_t RBAR_A2; /*!< MPU Alias 2 Region Base Address Register */ + __IO uint32_t RASR_A2; /*!< MPU Alias 2 Region Attribute and Size Register */ + __IO uint32_t RBAR_A3; /*!< MPU Alias 3 Region Base Address Register */ + __IO uint32_t RASR_A3; /*!< MPU Alias 3 Region Attribute and Size Register */ +} MPU_Type; +#endif + + +/* Core Debug Register */ +typedef struct +{ + __IO uint32_t DHCSR; /*!< Debug Halting Control and Status Register */ + __O uint32_t DCRSR; /*!< Debug Core Register Selector Register */ + __IO uint32_t DCRDR; /*!< Debug Core Register Data Register */ + __IO uint32_t DEMCR; /*!< Debug Exception and Monitor Control Register */ +} CoreDebug_Type; + + +/* Memory mapping of Cortex-M3 Hardware */ +#define SCS_BASE (0xE000E000) /*!< System Control Space Base Address */ +#define ITM_BASE (0xE0000000) /*!< ITM 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 InterruptType ((InterruptType_Type *) SCS_BASE) /*!< Interrupt Type Register */ +#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 ITM ((ITM_Type *) ITM_BASE) /*!< ITM configuration struct */ +#define CoreDebug ((CoreDebug_Type *) CoreDebug_BASE) /*!< Core Debug configuration struct */ + +#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1) + #define MPU_BASE (SCS_BASE + 0x0D90) /*!< Memory Protection Unit */ + #define MPU ((MPU_Type*) MPU_BASE) /*!< Memory Protection Unit */ +#endif + + + +/******************************************************************************* + * 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 +#define __RBIT __rbit +#define __LDREXB(ptr) ((unsigned char ) __ldrex(ptr)) +#define __LDREXH(ptr) ((unsigned short) __ldrex(ptr)) +#define __LDREXW(ptr) ((unsigned int ) __ldrex(ptr)) +#define __STREXB(value, ptr) __strex(value, ptr) +#define __STREXH(value, ptr) __strex(value, ptr) +#define __STREXW(value, ptr) __strex(value, ptr) + + +/* intrinsic unsigned long long __ldrexd(volatile void *ptr) */ +/* intrinsic int __strexd(unsigned long long val, volatile void *ptr) */ +/* intrinsic void __enable_irq(); */ +/* intrinsic void __disable_irq(); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @param none + * @return uint32_t ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param uint32_t Process Stack Pointer + * @return none + * + * 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 + * + * @param none + * @return uint32_t 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 uint32_t Main Stack Pointer + * @return none + * + * 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 uint16_t value to reverse + * @return uint32_t 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 int16_t value to reverse + * @return int32_t 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 Remove the exclusive lock created by ldrex + * + * @param none + * @return none + * + * Removes the exclusive lock which is created by ldrex. + */ +extern void __CLREX(void); + +/** + * @brief Return the Base Priority value + * + * @param none + * @return uint32_t BasePriority + * + * Return the content of the base priority register + */ +extern uint32_t __get_BASEPRI(void); + +/** + * @brief Set the Base Priority value + * + * @param uint32_t BasePriority + * @return none + * + * Set the base priority register + */ +extern void __set_BASEPRI(uint32_t basePri); + +/** + * @brief Return the Priority Mask value + * + * @param none + * @return uint32_t PriMask + * + * Return the state of the priority mask bit from the priority mask + * register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param uint32_t PriMask + * @return none + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Fault Mask value + * + * @param none + * @return uint32_t FaultMask + * + * Return the content of the fault mask register + */ +extern uint32_t __get_FAULTMASK(void); + +/** + * @brief Set the Fault Mask value + * + * @param uint32_t faultMask value + * @return none + * + * Set the fault mask register + */ +extern void __set_FAULTMASK(uint32_t faultMask); + +/** + * @brief Return the Control Register value + * + * @param none + * @return uint32_t Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param uint32_t Control value + * @return none + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +#else /* (__ARMCC_VERSION >= 400000) */ + + +/** + * @brief Remove the exclusive lock created by ldrex + * + * @param none + * @return none + * + * Removes the exclusive lock which is created by ldrex. + */ +#define __CLREX __clrex + +/** + * @brief Return the Base Priority value + * + * @param none + * @return uint32_t BasePriority + * + * Return the content of the base priority register + */ +static __INLINE uint32_t __get_BASEPRI(void) +{ + register uint32_t __regBasePri __ASM("basepri"); + return(__regBasePri); +} + +/** + * @brief Set the Base Priority value + * + * @param uint32_t BasePriority + * @return none + * + * Set the base priority register + */ +static __INLINE void __set_BASEPRI(uint32_t basePri) +{ + register uint32_t __regBasePri __ASM("basepri"); + __regBasePri = (basePri & 0x1ff); +} + +/** + * @brief Return the Priority Mask value + * + * @param none + * @return uint32_t PriMask + * + * Return the 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 uint32_t PriMask + * @return none + * + * 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 Fault Mask value + * + * @param none + * @return uint32_t FaultMask + * + * Return the content of the fault mask register + */ +static __INLINE uint32_t __get_FAULTMASK(void) +{ + register uint32_t __regFaultMask __ASM("faultmask"); + return(__regFaultMask); +} + +/** + * @brief Set the Fault Mask value + * + * @param uint32_t faultMask value + * @return none + * + * Set the fault mask register + */ +static __INLINE void __set_FAULTMASK(uint32_t faultMask) +{ + register uint32_t __regFaultMask __ASM("faultmask"); + __regFaultMask = (faultMask & 1); +} + +/** + * @brief Return the Control Register value + * + * @param none + * @return uint32_t 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 uint32_t Control value + * @return none + * + * 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"); } +static __INLINE void __CLREX() { __ASM ("clrex"); } + +/* intrinsic void __ISB(void) */ +/* intrinsic void __DSB(void) */ +/* intrinsic void __DMB(void) */ +/* intrinsic void __set_PRIMASK(); */ +/* intrinsic void __get_PRIMASK(); */ +/* intrinsic void __set_FAULTMASK(); */ +/* intrinsic void __get_FAULTMASK(); */ +/* intrinsic uint32_t __REV(uint32_t value); */ +/* intrinsic uint32_t __REVSH(uint32_t value); */ +/* intrinsic unsigned long __STREX(unsigned long, unsigned long); */ +/* intrinsic unsigned long __LDREX(unsigned long *); */ + + +/** + * @brief Return the Process Stack Pointer + * + * @param none + * @return uint32_t ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param uint32_t Process Stack Pointer + * @return none + * + * 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 + * + * @param none + * @return uint32_t 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 uint32_t Main Stack Pointer + * @return none + * + * 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 uint16_t value to reverse + * @return uint32_t reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/** + * @brief Reverse bit order of value + * + * @param uint32_t value to reverse + * @return uint32_t reversed value + * + * Reverse bit order of value + */ +extern uint32_t __RBIT(uint32_t value); + +/** + * @brief LDR Exclusive + * + * @param uint8_t* address + * @return uint8_t value of (*address) + * + * Exclusive LDR command + */ +extern uint8_t __LDREXB(uint8_t *addr); + +/** + * @brief LDR Exclusive + * + * @param uint16_t* address + * @return uint16_t value of (*address) + * + * Exclusive LDR command + */ +extern uint16_t __LDREXH(uint16_t *addr); + +/** + * @brief LDR Exclusive + * + * @param uint32_t* address + * @return uint32_t value of (*address) + * + * Exclusive LDR command + */ +extern uint32_t __LDREXW(uint32_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint8_t *address + * @param uint8_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXB(uint8_t value, uint8_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint16_t *address + * @param uint16_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXH(uint16_t value, uint16_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint32_t *address + * @param uint32_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXW(uint32_t value, uint32_t *addr); + + + +#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"); } +static __INLINE void __CLREX() { __ASM volatile ("clrex"); } + + +/** + * @brief Return the Process Stack Pointer + * + * @param none + * @return uint32_t ProcessStackPointer + * + * Return the actual process stack pointer + */ +extern uint32_t __get_PSP(void); + +/** + * @brief Set the Process Stack Pointer + * + * @param uint32_t Process Stack Pointer + * @return none + * + * 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 + * + * @param none + * @return uint32_t 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 uint32_t Main Stack Pointer + * @return none + * + * Assign the value mainStackPointer to the MSP + * (main stack pointer) Cortex processor register + */ +extern void __set_MSP(uint32_t topOfMainStack); + +/** + * @brief Return the Base Priority value + * + * @param none + * @return uint32_t BasePriority + * + * Return the content of the base priority register + */ +extern uint32_t __get_BASEPRI(void); + +/** + * @brief Set the Base Priority value + * + * @param uint32_t BasePriority + * @return none + * + * Set the base priority register + */ +extern void __set_BASEPRI(uint32_t basePri); + +/** + * @brief Return the Priority Mask value + * + * @param none + * @return uint32_t PriMask + * + * Return the state of the priority mask bit from the priority mask + * register + */ +extern uint32_t __get_PRIMASK(void); + +/** + * @brief Set the Priority Mask value + * + * @param uint32_t PriMask + * @return none + * + * Set the priority mask bit in the priority mask register + */ +extern void __set_PRIMASK(uint32_t priMask); + +/** + * @brief Return the Fault Mask value + * + * @param none + * @return uint32_t FaultMask + * + * Return the content of the fault mask register + */ +extern uint32_t __get_FAULTMASK(void); + +/** + * @brief Set the Fault Mask value + * + * @param uint32_t faultMask value + * @return none + * + * Set the fault mask register + */ +extern void __set_FAULTMASK(uint32_t faultMask); + +/** + * @brief Return the Control Register value +* +* @param none +* @return uint32_t Control value + * + * Return the content of the control register + */ +extern uint32_t __get_CONTROL(void); + +/** + * @brief Set the Control Register value + * + * @param uint32_t Control value + * @return none + * + * Set the control register + */ +extern void __set_CONTROL(uint32_t control); + +/** + * @brief Reverse byte order in integer value + * + * @param uint32_t value to reverse + * @return uint32_t reversed value + * + * Reverse byte order in integer value + */ +extern uint32_t __REV(uint32_t value); + +/** + * @brief Reverse byte order in unsigned short value + * + * @param uint16_t value to reverse + * @return uint32_t reversed value + * + * Reverse byte order in unsigned short value + */ +extern uint32_t __REV16(uint16_t value); + +/* + * Reverse byte order in signed short value with sign extension to integer + * + * @param int16_t value to reverse + * @return int32_t reversed value + * + * @brief Reverse byte order in signed short value with sign extension to integer + */ +extern int32_t __REVSH(int16_t value); + +/** + * @brief Reverse bit order of value + * + * @param uint32_t value to reverse + * @return uint32_t reversed value + * + * Reverse bit order of value + */ +extern uint32_t __RBIT(uint32_t value); + +/** + * @brief LDR Exclusive + * + * @param uint8_t* address + * @return uint8_t value of (*address) + * + * Exclusive LDR command + */ +extern uint8_t __LDREXB(uint8_t *addr); + +/** + * @brief LDR Exclusive + * + * @param uint16_t* address + * @return uint16_t value of (*address) + * + * Exclusive LDR command + */ +extern uint16_t __LDREXH(uint16_t *addr); + +/** + * @brief LDR Exclusive + * + * @param uint32_t* address + * @return uint32_t value of (*address) + * + * Exclusive LDR command + */ +extern uint32_t __LDREXW(uint32_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint8_t *address + * @param uint8_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXB(uint8_t value, uint8_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint16_t *address + * @param uint16_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXH(uint16_t value, uint16_t *addr); + +/** + * @brief STR Exclusive + * + * @param uint32_t *address + * @param uint32_t value to store + * @return uint32_t successful / failed + * + * Exclusive STR command + */ +extern uint32_t __STREXW(uint32_t value, uint32_t *addr); + + +#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 + + + +/* ########################## NVIC functions #################################### */ + + +/** + * @brief Set the Priority Grouping in NVIC Interrupt Controller + * + * @param uint32_t priority_grouping is priority grouping field + * @return none + * + * Set the priority grouping field using the required unlock sequence. + * The parameter priority_grouping is assigned to the field + * SCB->AIRCR [10:8] PRIGROUP field. Only values from 0..7 are used. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the smallest possible priority group is set. + */ +static __INLINE void NVIC_SetPriorityGrouping(uint32_t PriorityGroup) +{ + uint32_t reg_value; + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + + reg_value = SCB->AIRCR; /* read old register configuration */ + reg_value &= ~((0xFFFFU << 16) | (0x0F << 8)); /* clear bits to change */ + reg_value = ((reg_value | NVIC_AIRCR_VECTKEY | (PriorityGroupTmp << 8))); /* Insert write key and priorty group */ + SCB->AIRCR = reg_value; +} + +/** + * @brief Get the Priority Grouping from NVIC Interrupt Controller + * + * @param none + * @return uint32_t priority grouping field + * + * Get the priority grouping from NVIC Interrupt Controller. + * priority grouping is SCB->AIRCR [10:8] PRIGROUP field. + */ +static __INLINE uint32_t NVIC_GetPriorityGrouping(void) +{ + return ((SCB->AIRCR >> 8) & 0x07); /* read priority grouping field */ +} + +/** + * @brief Enable Interrupt in NVIC Interrupt Controller + * + * @param IRQn_Type IRQn specifies the interrupt number + * @return none + * + * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* enable interrupt */ +} + +/** + * @brief Disable the interrupt line for external interrupt specified + * + * @param IRQn_Type IRQn is the positive number of the external interrupt + * @return none + * + * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* disable interrupt */ +} + +/** + * @brief Read the interrupt pending bit for a device specific interrupt source + * + * @param IRQn_Type IRQn is the number of the device specifc interrupt + * @return uint32_t 1 if pending interrupt else 0 + * + * 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[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if pending else 0 */ +} + +/** + * @brief Set the pending bit for an external interrupt + * + * @param IRQn_Type IRQn is the Number of the interrupt + * @return none + * + * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* set interrupt pending */ +} + +/** + * @brief Clear the pending bit for an external interrupt + * + * @param IRQn_Type IRQn is the Number of the interrupt + * @return none + * + * 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[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F)); /* Clear pending interrupt */ +} + +/** + * @brief Read the active bit for an external interrupt + * + * @param IRQn_Type IRQn is the Number of the interrupt + * @return uint32_t 1 if active else 0 + * + * Read the active register in NVIC and returns 1 if its status is active, + * otherwise it returns 0. + */ +static __INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn) +{ + return((uint32_t)((NVIC->IABR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0)); /* Return 1 if active else 0 */ +} + +/** + * @brief Set the priority for an interrupt + * + * @param IRQn_Type IRQn is the Number of the interrupt + * @param priority is the priority for the interrupt + * @return none + * + * 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. \n + * + * 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[((uint32_t)(IRQn) & 0xF)-4] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for Cortex-M3 System Interrupts */ + else { + NVIC->IP[(uint32_t)(IRQn)] = ((priority << (8 - __NVIC_PRIO_BITS)) & 0xff); } /* set Priority for device specific Interrupts */ +} + +/** + * @brief Read the priority for an interrupt + * + * @param IRQn_Type IRQn is the Number of the interrupt + * @return uint32_t priority is 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[((uint32_t)(IRQn) & 0xF)-4] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for Cortex-M3 system interrupts */ + else { + return((uint32_t)(NVIC->IP[(uint32_t)(IRQn)] >> (8 - __NVIC_PRIO_BITS))); } /* get priority for device specific interrupts */ +} + + +/** + * @brief Encode the priority for an interrupt + * + * @param uint32_t PriorityGroup is the used priority group + * @param uint32_t PreemptPriority is the preemptive priority value (starting from 0) + * @param uint32_t SubPriority is the sub priority value (starting from 0) + * @return uint32_t the priority for the interrupt + * + * Encode the priority for an interrupt with the given priority group, + * preemptive priority value and sub priority value. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. + * + * The returned priority value can be used for NVIC_SetPriority(...) function + */ +static __INLINE uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority) +{ + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + uint32_t PreemptPriorityBits; + uint32_t SubPriorityBits; + + PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; + SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; + + return ( + ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) | + ((SubPriority & ((1 << (SubPriorityBits )) - 1))) + ); +} + + +/** + * @brief Decode the priority of an interrupt + * + * @param uint32_t Priority the priority for the interrupt + * @param uint32_t PrioGroup is the used priority group + * @param uint32_t* pPreemptPrio is the preemptive priority value (starting from 0) + * @param uint32_t* pSubPrio is the sub priority value (starting from 0) + * @return none + * + * Decode an interrupt priority value with the given priority group to + * preemptive priority value and sub priority value. + * In case of a conflict between priority grouping and available + * priority bits (__NVIC_PRIO_BITS) the samllest possible priority group is set. + * + * The priority value can be retrieved with NVIC_GetPriority(...) function + */ +static __INLINE void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority) +{ + uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */ + uint32_t PreemptPriorityBits; + uint32_t SubPriorityBits; + + PreemptPriorityBits = ((7 - PriorityGroupTmp) > __NVIC_PRIO_BITS) ? __NVIC_PRIO_BITS : 7 - PriorityGroupTmp; + SubPriorityBits = ((PriorityGroupTmp + __NVIC_PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + __NVIC_PRIO_BITS; + + *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1); + *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1); +} + + + +/* ################################## SysTick function ############################################ */ + +#if (!defined (__Vendor_SysTickConfig)) || (__Vendor_SysTickConfig == 0) + +/* SysTick constants */ +#define SYSTICK_ENABLE 0 /* Config-Bit to start or stop the SysTick Timer */ +#define SYSTICK_TICKINT 1 /* Config-Bit to enable or disable the SysTick interrupt */ +#define SYSTICK_CLKSOURCE 2 /* Clocksource has the offset 2 in SysTick Control and Status Register */ +#define SYSTICK_MAXCOUNT ((1<<24) -1) /* SysTick MaxCount */ + +/** + * @brief Initialize and start the SysTick counter and its interrupt. + * + * @param uint32_t ticks is the number of ticks between two interrupts + * @return none + * + * 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_MAXCOUNT) return (1); /* Reload value impossible */ + + SysTick->LOAD = (ticks & SYSTICK_MAXCOUNT) - 1; /* set reload register */ + NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1); /* set Priority for Cortex-M0 System Interrupts */ + SysTick->VAL = (0x00); /* Load the SysTick Counter Value */ + SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (1<AIRCR = (NVIC_AIRCR_VECTKEY | (SCB->AIRCR & (0x700)) | (1<DEMCR & CoreDebug_DEMCR_TRCENA) && + (ITM->TCR & ITM_TCR_ITMENA) && + (ITM->TER & (1UL << 0)) ) + { + while (ITM->PORT[0].u32 == 0); + ITM->PORT[0].u8 = (uint8_t) ch; + } + return (ch); +} + +#ifdef __cplusplus +} +#endif + +#endif /* __CM3_CORE_H__ */ + +/*lint -restore */