core_cm3.h

LPC1788的USBHOST的FATFS移植

/**************************************************************************//**
 * @file     core_cm3.h
 * @brief    CMSIS Cortex-M3 Core Peripheral Access Layer Header File
 * @version  V2.01
 * @date     06. December 2010
 *
 * @note
 * Copyright (C) 2009-2010 ARM Limited. All rights reserved.
 *
 * @par
 * ARM Limited (ARM) is supplying this software for use with Cortex-M
 * processor based microcontrollers.  This file can be freely distributed
 * within development tools that are supporting such ARM based processors.
 *
 * @par
 * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
 * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
 * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
 *
 ******************************************************************************/

#if defined ( __ICCARM__ )
 #pragma system_include  /* treat file as system include file for MISRA check */
#endif

#ifdef __cplusplus
 extern "C" {
#endif

#ifndef __CORE_CM3_H_GENERIC
#define __CORE_CM3_H_GENERIC


/** \mainpage CMSIS Cortex-M3

  This documentation describes the CMSIS Cortex-M Core Peripheral Access Layer.
  It consists of:

     - Cortex-M Core Register Definitions
     - Cortex-M functions
     - Cortex-M instructions

  The CMSIS Cortex-M3 Core Peripheral Access Layer contains C and assembly functions that ease
  access to the Cortex-M Core
 */

/** \defgroup CMSIS_LintCinfiguration CMSIS Lint Configuration
 @ingroup CMSIS

  List of Lint messages which will be suppressed and not shown:
    - not yet checked
  .
  Note:  To re-enable a Message, insert a space before 'lint' *

 */


/*******************************************************************************
 *                 CMSIS definitions
 ******************************************************************************/
/** \defgroup CMSIS_core_definitions CMSIS Core Definitions
  @ingroup CMSIS
  This file defines all structures and symbols for CMSIS core:
    - CMSIS version number
    - Cortex-M core
    - Cortex-M core Revision Number
  @{
 */

/*  CMSIS CM3 definitions */
#define __CM3_CMSIS_VERSION_MAIN  (0x02)                                                       /*!< [31:16] CMSIS HAL main version */
#define __CM3_CMSIS_VERSION_SUB   (0x00)                                                       /*!< [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                    */


#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

#include <stdint.h>                      /*!< standard types definitions                      */
#include "core_cmInstr.h"                /*!< Core Instruction Access                         */
#include "core_cmFunc.h"                 /*!< Core Function Access                            */

#endif /* __CORE_CM3_H_GENERIC */


#ifndef __CMSIS_GENERIC

#ifndef __CORE_CM3_H_DEPENDANT
#define __CORE_CM3_H_DEPENDANT

/* IO definitions (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   */

/*@} end of group CMSIS_core_definitions */



/*******************************************************************************
 *                 Register Abstraction
 ******************************************************************************/
/** \defgroup CMSIS_core_register CMSIS Core Register
  @ingroup CMSIS
  Core Register contain:
  - Core Register
  - Core NVIC Register
  - Core SCB Register
  - Core SysTick Register
  - Core Debug Register
  - Core MPU Register
*/

/** \ingroup  CMSIS_core_register
    \defgroup CMSIS_CORE CMSIS Core
  Type definitions for the Cortex-M Core Registers
 @{
 */

/** \brief  Union type to access the Application Program Status Register (APSR).
 */
typedef union
{
  struct
  {
#if (__CORTEX_M != 0x04)
    uint32_t _reserved0:27;              /*!< bit:  0..26  Reserved                           */
#else
    uint32_t _reserved0:16;              /*!< bit:  0..15  Reserved                           */
    uint32_t GE:4;                       /*!< bit: 16..19  Greater than or Equal flags        */
    uint32_t _reserved1:7;               /*!< bit: 20..26  Reserved                           */
#endif
    uint32_t Q:1;                        /*!< bit:     27  Saturation condition flag          */
    uint32_t V:1;                        /*!< bit:     28  Overflow condition code flag       */
    uint32_t C:1;                        /*!< bit:     29  Carry condition code flag          */
    uint32_t Z:1;                        /*!< bit:     30  Zero condition code flag           */
    uint32_t N:1;                        /*!< bit:     31  Negative condition code flag       */
  } b;                                   /*!< Structure used for bit  access                  */
  uint32_t w;                            /*!< Type      used for word access                  */
} APSR_Type;


/** \brief  Union type to access the Interrupt Program Status Register (IPSR).
 */
typedef union
{
  struct
  {
    uint32_t ISR:9;                      /*!< bit:  0.. 8  Exception number                   */
    uint32_t _reserved0:23;              /*!< bit:  9..31  Reserved                           */
  } b;                                   /*!< Structure used for bit  access                  */
  uint32_t w;                            /*!< Type      used for word access                  */
} IPSR_Type;


/** \brief  Union type to access the Special-Purpose Program Status Registers (xPSR).
 */
typedef union
{
  struct
  {
    uint32_t ISR:9;                      /*!< bit:  0.. 8  Exception number                   */
#if (__CORTEX_M != 0x04)
    uint32_t _reserved0:15;              /*!< bit:  9..23  Reserved                           */
#else
    uint32_t _reserved0:7;               /*!< bit:  9..15  Reserved                           */
    uint32_t GE:4;                       /*!< bit: 16..19  Greater than or Equal flags        */
    uint32_t _reserved1:4;               /*!< bit: 20..23  Reserved                           */
#endif
    uint32_t T:1;                        /*!< bit:     24  Thumb bit        (read 0)          */
    uint32_t IT:2;                       /*!< bit: 25..26  saved IT state   (read 0)          */
    uint32_t Q:1;                        /*!< bit:     27  Saturation condition flag          */
    uint32_t V:1;                        /*!< bit:     28  Overflow condition code flag       */
    uint32_t C:1;                        /*!< bit:     29  Carry condition code flag          */
    uint32_t Z:1;                        /*!< bit:     30  Zero condition code flag           */
    uint32_t N:1;                        /*!< bit:     31  Negative condition code flag       */
  } b;                                   /*!< Structure used for bit  access                  */
  uint32_t w;                            /*!< Type      used for word access                  */
} xPSR_Type;


/** \brief  Union type to access the Control Registers (CONTROL).
 */
typedef union
{
  struct
  {
    uint32_t nPRIV:1;                    /*!< bit:      0  Execution privilege in Thread mode */
    uint32_t SPSEL:1;                    /*!< bit:      1  Stack to be used                   */
    uint32_t FPCA:1;                     /*!< bit:      2  FP extension active flag           */
    uint32_t _reserved0:29;              /*!< bit:  3..31  Reserved                           */