main.h

mmc_sd_memory_card_driver_sample_project_files.zip spi接口的sd card driver 示例

//****************************************************************************************
//****************************************************************************************
//  Project Name:		MMC / SD CARD FAT16 & FAT 32 DRIVER
//						GENERIC GLOBAL HEADER FILE
//  Copyright:			EMBEDDED-CODE.COM
//
//  Licenced To:        NONE
//  Licence Number:     NONE
//
//  IMPORTANT: These files are copyright of embedded-code.com and are subject to a licence
//  agreement.  All rights reserved.  Unauthorised use, reproduction or distribution of
//  these files may lead to prosecution.
//  Any use in violation of the licence restrictions may subject the user to criminal
//  sanctions under applicable laws, as well as to civil liability for the breach of the
//  terms and conditions of the license.
//  This software is provided in an "as is" condition. 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. 
//  Embedded-code.com shall not be liable in any circumstances for special, incidental
//  or consequential damages, for any reason whatsoever.
//  Please see 'www.embedded-code.com\licence' or email '[e-mail]' for
//  full details.
//  This file contains hidden markers to identify it uniquely to the licence number it was
//  purchased under.
//  DO NOT REMOVE THIS NOTICE - IT IS A REQUIREMENT OF THE LICENCE AGREEMENT.
//****************************************************************************************
//****************************************************************************************




//**********************************************
//**********************************************
//********** SAMPLE PROJECT REVISIONS **********
//**********************************************
//**********************************************
//
//V1.02
//- First released version.
//
//V1.03
//- Corrected RB3 pin TRIS definition from an input to an output (LED2 pin).
//
//V1.04
//- No changes to sample project
//
//V1.05
//- No changes to sample project
//
//V1.06
//- No changes to sample project


//******************************************
//******************************************
//********** PROJECT GLOBAL FLAGS **********
//******************************************
//******************************************
//#define	IN_DEVELOPMENT_MODE					//Include if we are debugging, comment out if we are building code for release (this define used in the source code if desired)
#define	USING_3V3_POWER						//Include if the target circuit is 3.3V rather than 5V (used by the configuration defines to select the relevant brown out reset voltage)








//*************************************
//*************************************
//********** GENERAL DEFINES **********
//*************************************
//*************************************

//INCLUDE THE DEVICE HEADER FILE
#include <p18f452.h>

//----------------------
//----- OSCILLATOR -----						//<<<<< CHECK FOR A NEW APPLICATION <<<<<
//----------------------
//10MHz Osc
//= 10MHz instruction clock with 4xPLL
//= 100nS per instruction
#define	INSTRUCTION_CLOCK_FREQUENCY	6000000


//----------------------
//----- INTERRUPTS -----
//----------------------
#define	ENABLE_INT	INTCONbits.GIE = 1			//Enable all unmasket interupts
#define	DISABLE_INT	INTCONbits.GIE = 0			//Disable all unmasket interupts












//****************************************
//****************************************
//***** GLOBAL DATA TYPE DEFINITIONS *****
//****************************************
//****************************************
#ifndef GLOBAL_DATA_TYPE_INIT				//(Include this section only once for each source file)
#define	GLOBAL_DATA_TYPE_INIT

#undef BOOL
#undef TRUE
#undef FALSE
#undef BYTE
#undef SIGNED_BYTE
#undef WORD
#undef SIGNED_WORD
#undef DWORD
#undef SIGNED_DWORD

//BOOLEAN - 1 bit:
typedef enum _BOOL { FALSE = 0, TRUE } BOOL;
//BYTE - 8 bit unsigned:
typedef unsigned char BYTE;
//SIGNED_BYTE - 8 bit signed:
typedef signed char SIGNED_BYTE;
//WORD - 16 bit unsigned:
typedef unsigned int WORD;
//SIGNED_WORD - 16 bit signed:
typedef signed int SIGNED_WORD;
//DWORD - 32 bit unsigned:
typedef unsigned long DWORD;
//SIGNED_DWORD - 32 bit signed:
typedef signed long SIGNED_DWORD;

//BYTE BIT ACCESS:
typedef union _BYTE_VAL
{
    struct
    {
        unsigned int b0:1;
        unsigned int b1:1;
        unsigned int b2:1;
        unsigned int b3:1;
        unsigned int b4:1;
        unsigned int b5:1;
        unsigned int b6:1;
        unsigned int b7:1;
    } bits;
    BYTE Val;
} BYTE_VAL;

//WORD ACCESS
typedef union _WORD_VAL
{
    WORD val;
    struct
    {
        BYTE LSB;
        BYTE MSB;
    } byte;
    BYTE v[2];
} WORD_VAL;
#define LSB(a)          ((a).v[0])
#define MSB(a)          ((a).v[1])

//DWORD ACCESS:
typedef union _DWORD_VAL
{
    DWORD val;
    struct
    {
        BYTE LOLSB;
        BYTE LOMSB;
        BYTE HILSB;
        BYTE HIMSB;
    } byte;
    struct
    {
        WORD LSW;
        WORD MSW;
    } word;
    BYTE v[4];
} DWORD_VAL;
#define LOWER_LSB(a)    ((a).v[0])
#define LOWER_MSB(a)    ((a).v[1])
#define UPPER_LSB(a)    ((a).v[2])
#define UPPER_MSB(a)    ((a).v[3])

//EXAMPLE OF HOW TO USE THE DATA TYPES:-
//	WORD_VAL variable_name;				//Define the variable
//	variable_name = 0xffffffff;			//Writing 32 bit value
//	variable_name.LSW = 0xffff;			//Writing 16 bit value to the lower word 
//	variable_name.LOLSB = 0xff;			//Writing 8 bit value to the low word least significant byte
//	variable_name.v[0] = 0xff;			//Writing 8 bit value to byte 0 (least significant byte)




#endif		//GLOBAL_DATA_TYPE_INIT