Matthew Sims
Lab 1 Program C
Fork of mbed by
LPC1768/core_cm3.h
- Committer:
- rolf.meyer@arm.com
- Date:
- 2009-08-28
- Revision:
- 11:1c1ebd0324fa
File content as of revision 11:1c1ebd0324fa:
/******************************************************************************
* @file: core_cm3.h
* @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Header File
* @version: V1.30 PRE-RELEASE
* @date: 30. July 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 (0x30) /*!< [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 '<some, not used in the HAL>' (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 <stdint.h> /* Include standard types */
#if defined (__ICCARM__)
#include <intrinsics.h> /* 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 & 0xff);
}
/**
* @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<<SYSTICK_ENABLE) | (1<<SYSTICK_TICKINT); /* Enable SysTick IRQ and SysTick Timer */
return (0); /* Function successful */
}
#endif
/* ################################## Reset function ############################################ */
/**
* @brief Initiate a system reset request.
*
* @param none
* @return none
*
* Initialize a system reset request to reset the MCU
*/
static __INLINE void NVIC_SystemReset(void)
{
SCB->AIRCR = (NVIC_AIRCR_VECTKEY | (SCB->AIRCR & (0x700)) | (1<<NVIC_SYSRESETREQ)); /* Keep priority group unchanged */
__DSB(); /* Ensure completion of memory access */
while(1); /* wait until reset */
}
/* ##################################### Debug In/Output function ########################################### */
extern volatile int ITM_RxBuffer; /* variable to receive characters */
#define ITM_RXBUFFER_EMPTY 0x5AA55AA5 /* value identifying ITM_RxBuffer is ready for next character */
/**
* @brief Outputs a character via the ITM channel 0
*
* @param uint32_t character to output
* @return uint32_t input character
*
* The function outputs a character via the ITM channel 0.
* The function returns when no debugger is connected that has booked the output.
* It is blocking when a debugger is connected, but the previous character send is not transmitted.
*/
static __INLINE uint32_t ITM_SendChar (uint32_t ch)
{
if ((CoreDebug->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);
}
/**
* @brief Inputs a character via variable ITM_RxBuffer
*
* @param none
* @return uint32_t input character
*
* The function inputs a character via variable ITM_RxBuffer.
* The function returns when no debugger is connected that has booked the output.
* It is blocking when a debugger is connected, but the previous character send is not transmitted.
*/
static __INLINE int ITM_ReceiveChar (void) {
int ch = -1; /* no character available */
if (ITM_RxBuffer != ITM_RXBUFFER_EMPTY) {
ch = ITM_RxBuffer;
ITM_RxBuffer = ITM_RXBUFFER_EMPTY; /* ready for next character */
}
return (ch);
}
/**
* @brief Check if a character via variable ITM_RxBuffer is available
*
* @param none
* @return int 1 = character available, 0 = no character available
*
* The function checks variable ITM_RxBuffer whether a character is available or not.
* The function returns '1' if a character is available and '0' if no character is available.
*/
static __INLINE int ITM_CheckChar (void) {
if (ITM_RxBuffer == ITM_RXBUFFER_EMPTY) {
return (0); /* no character available */
} else {
return (1); /* character available */
}
}
#ifdef __cplusplus
}
#endif
#endif /* __CM3_CORE_H__ */
/*lint -restore */