flash.h

LPC213x系列微处理器操作M25P64存储器的驱动程序

#ifndef _FLASH_H_
#define _FLASH_H_

#include "fun_monitnum.h"
#include "uart485.h"

///For LPC213X

#define SCK1        (1<<17)
#define DI1         (1<<18)
#define DO1         (1<<19)
#define SE1         (1<<20)
#define INSERT      (1<<24)
#define WP          (1<<25)
#define HOLD        (1<<24)

#define DO1H            IO0SET|=DO1
#define DO1L            IO0CLR|=DO1

#define SCK1H           IO0SET|=SCK1
#define SCK1L           IO0CLR|=SCK1

#define DI1H            (IO0PIN&DI1)

#define SE_ENABLE       IO0CLR|=SE1
#define SE_DISABLE      IO0SET|=SE1
#define SEL             IO0CLR|=SE1
#define SEH             IO0SET|=SE1

#define HOLD_ENABLE     IO0CLR|=HOLD
#define HOLD_DISABLE    IO0SET|=HOLD

#define WP_ENABLE       IO0CLR|=WP
#define WP_DISABLE      IO0SET|=WP

#define WREN        0x06
#define WRDI        0x04
#define RDID        0x9f
#define RDSR        0x05
#define WRSR        0x01
#define READ        0x03
#define FAST_READ   0x0b
#define PP          0x02
#define SE          0xd8
#define BE          0xc7
#define RES         0xab
#define WIP			0x1	//Check the write in progress bit of the SPI status register
#define WEL			0x2	//Check the write enable bit of the SPI status register

#define TIMEOUT        35000*64
#define	NUM_SECTORS 	128		// number of sectors in the M25P20 flash device

#define USE_M25P64
#define USE_JEDEC_STANDARD_TWO_BYTE_SIGNATURE

#ifdef USE_M25P64                        /* The USE_M25P64 device */
   #define USE_JEDEC_STANDARD_TWO_BYTE_SIGNATURE /* undefine this macro to read One-Byte Signature*/
   #ifdef  USE_JEDEC_STANDARD_TWO_BYTE_SIGNATURE
        #define EXPECTED_DEVICE (0x2017)    /* Device Identification for the USE_M25P64 */
   #else
        #define EXPECTED_DEVICE (0x16)      /* Device Identification for the USE_M25P64 */
   #endif
   #define FLASH_AVAILABLE (0x07f0000)      /* Available device size in Bytes*/
   #define FLASH_SIZE (0x0800000)           /* Total device size in Bytes */
   #define FLASH_PAGE_COUNT (0x08000)       /* Total device size in Pages */
   #define FLASH_SECTOR_COUNT (0x80)        /* Total device size in Sectors */
   #define FLASH_WRITE_BUFFER_SIZE 0x100    /* Write Buffer = 256 bytes */ 
   #define FLASH_MWA 1                      /* Minimum Write Access */ 
   #define BE_TIMEOUT (0x160)               /* Timeout in seconds suggested for Bulk Erase Operation*/
   #define NO_DEEP_POWER_DOWN_SUPPORT       /* No support for Deep Power-down feature*/    
#endif /* USE_M25P64 */

#define FLASHAUTO       (0xffffffff)

#define DO1_ENABLE      PINSEL1 = ((PINSEL1 & (~(0x03<<6))) | (0x02<<6))
#define DO1_DISABLE     PINSEL1 = (PINSEL1 & (~(0x03<<6)));IO0DIR &= (~(0x01<<19)) 
#define SE1_ENABKE      PINSEL1 = ((PINSEL1 & (~(0x03<<8))) | (0x02<<8))
#define SE1_DISABLE     PINSEL1 = (PINSEL1 & (~(0x03<<8)));IO0DIR |= (0x01<<20) ;IOSET |= (1<<20)

#define SSP_SOFT        PINSEL1 &= (~(0xaaaa<<2))
#define SSP_HARD        PINSEL1 = (PINSEL1 & (~(0xFF << 2))) | (0xAA << 2);
 
/*
*********************************************************************************************************
** 函数名称：SSP_Init()
** 函数功能：将SSP控制器设置为主机SPI。
** 入口参数：无
** 出口参数：无
*********************************************************************************************************
*/
void  SSP_Init(void);


/*
*********************************************************************************************************
* 函数名称：SSP_SendData()
* 函数功能：SSP接口向SPI总线发送数据。
* 入口参数：data        待发送的数据
* 出口参数：返回值为读取的数据
*********************************************************************************************************
*/
uint8  SSP_SendData(uint8 data);

/*
*********************************************************************************************************
* 函数名称：FLASH_CMD()
* 函数功能：Flash 存储器读写函数
* 入口参数：cmd   读写命令
* 出口参数：返回值为读取的数据
*********************************************************************************************************
*/
uint8 FlashCmd(uint8 cmd);

uint8 CMD_WREN(void);
uint8 CMD_WRDI(void);
uint8 CMD_RDID(void);
uint8 CMD_RDSR(void);
uint8 CMD_WRSR(uint8 data);
uint8 CMD_READ(uint32 addr,uint8 *data,uint16 length);
uint8 CMD_FREAD(uint32 addr,uint8 length);
uint8 CMD_PP(uint32 addr,uint8 *data,uint16 length);
uint8 CMD_RES(void);
uint8 CMD_SE(uint32 saddr);
uint8 CMD_BE(void);
uint8 Wait_For_WEL(void);
uint8 Wait_For_Status( uint8 Statusbit );
void SSP_Soft_Init(void);


uint SSPS_SendData(uint8 data,uint8 dataen);
uint8 CMD_RDIDS(void);

uint8 FlashRead(uint32 FlashAddr,uint8 *RamAddr,uint8 length);
uint8 FlashWrite(uint32 FlashAddr,uint8 *RamAddr,uint8 length);

typedef struct _tagFlashRecord
{
    uint32  RecordID;
    uint32  RecordDistance;
    uint16  RecordTrain;            //*（2个字节)车次
    uint16  RecordDriver;           //*（2个字节)司机号
    uint16  RecordSpeed;
    uint8   RecordCarriageNum;
    uint8   RecordSec;
    uint8   RecordMin;
    uint8   RecordHour;
    uint8   RecordDate;
    uint8   RecordMonth;
    uint8   RecordHor1;
    uint8   RecordVer1;
    uint8   RecordHor2;
    uint8   RecordVer2;
    uint8   RecordHor3;
    uint8   RecordVer3;
    uint8   RecordHor4;
    uint8   RecordVer4;
    uint8   RecordForw;
    uint8   RecordAlarmFlag;
    uint8   RecordReserved0;
    uint8   RecordReserved1;
}FlashRecord,*LPFlashRecord;

extern volatile uint8 ID[3];
extern volatile uint8 flash_buf[256];
extern volatile uint32 FlashCurrentWriteAddr,FlashCurrentReadAddr;
extern volatile FlashRecord AlarmDataRecord;
extern volatile uint8 FlashCurrentSector,FlashFormatEn;

uint8 RecordPackage( LPFlashRecord RData, LPUART485 UData, LPMONITDATA AData);
uint8 WriteRecord2Flash(LPFlashRecord RData);
uint8 ReadRecordFromFlash(LPFlashRecord RData);
uint8 SearchRecordIndex(void);
#endif