dataflash.h

关于测试at91sam9260的各种驱动和功能的测试源代码。

/*************************************** Copyright (c) *************************************************
*
*			            POLAR STAR
*				   北天星国际有限公司
*				   http://www.po-star.com
*
*文 件 名: dataflash.h 
*
*编译环境：ADS1.2
*
********************************************************************************************************/


#ifndef _DATAFLASH_H
#define _DATAFLASH_H

// SPI CLOCK
#define AT91C_SPI_CLK 				8000000
// AC characteristics
// DLYBS = tCSS= 250ns min and DLYBCT = tCSH = 250ns
#define DATAFLASH_TCSS				(0xc << 16)	// 250ns min (tCSS) <=> 12/48000000 = 250ns
#define DATAFLASH_TCHS				(0x1 << 24)	// 250ns min (tCSH) <=> (64*1+SCBR)/(2*48000000)

// Chip Select 0 : NPCS0 %1110
#define AT91C_SPI_PCS0_DATAFLASH	0xE
// Chip Select 1 : NPCS1 %1101
#define AT91C_SPI_PCS1_DATAFLASH	0xD

/////////////////////////////////////////////////////////////////////////////////////////////////////
// Command Definition
/////////////////////////////////////////////////////////////////////////////////////////////////////

/* READ COMMANDS */
#define DB_CONTINUOUS_ARRAY_READ   	0xE8		/* Continuous array read */
#define DB_BURST_ARRAY_READ        	0xE8		/* Burst array read */
#define DB_PAGE_READ               	0xD2		/* Main memory page read */
#define DB_BUF1_READ               	0xD4		/* Buffer 1 read */
#define DB_BUF2_READ               	0xD6		/* Buffer 2 read */
#define DB_STATUS                  	0xD7		/* Status Register */

/* PROGRAM and ERASE COMMANDS */
#define DB_BUF1_WRITE              	0x84		/* Buffer 1 write */
#define DB_BUF2_WRITE              	0x87		/* Buffer 2 write */
#define DB_BUF1_PAGE_ERASE_PGM     	0x83		/* Buffer 1 to main memory page program with built-In erase */
#define DB_BUF1_PAGE_ERASE_FASTPGM 	0x93		/* Buffer 1 to main memory page program with built-In erase, Fast program */
#define DB_BUF2_PAGE_ERASE_PGM     	0x86		/* Buffer 2 to main memory page program with built-In erase */
#define DB_BUF2_PAGE_ERASE_FASTPGM 	0x96		/* Buffer 1 to main memory page program with built-In erase, Fast program */
#define DB_BUF1_PAGE_PGM           	0x88		/* Buffer 1 to main memory page program without built-In erase */
#define DB_BUF1_PAGE_FASTPGM       	0x98		/* Buffer 1 to main memory page program without built-In erase, Fast program*/
#define DB_BUF2_PAGE_PGM           	0x89		/* Buffer 2 to main memory page program without built-In erase */
#define DB_BUF2_PAGE_FASTPGM       	0x99		/* Buffer 1 to main memory page program without built-In erase, Fast program*/
#define DB_PAGE_ERASE              	0x81		/* Page Erase */
#define DB_BLOCK_ERASE             	0x50		/* Block Erase */
#define DB_PAGE_PGM_BUF1           	0x82		/* Main memory page through buffer 1 */
#define DB_PAGE_FASTPGM_BUF1       	0x92		/* Main memory page through buffer 1, Fast program */
#define DB_PAGE_PGM_BUF2           	0x85		/* Main memory page through buffer 2 */
#define DB_PAGE_FastPGM_BUF2       	0x95		/* Main memory page through buffer 2, Fast program */

/* ADDITIONAL COMMANDS */
#define DB_PAGE_2_BUF1_TRF         	0x53		/* Main memory page to buffer 1 transfert */
#define DB_PAGE_2_BUF2_TRF         	0x55		/* Main memory page to buffer 2 transfert */
#define DB_PAGE_2_BUF1_CMP         	0x60		/* Main memory page to buffer 1 compare */
#define DB_PAGE_2_BUF2_CMP              0x61		/* Main memory page to buffer 2 compare */
#define DB_AUTO_PAGE_PGM_BUF1      	0x58		/* Auto page rewrite throught buffer 1 */
#define DB_AUTO_PAGE_PGM_BUF2      	0x59		/* Auto page rewrite throught buffer 2 */

/////////////////////////////////////////////////////////////////////////////////////////////////////
// ATMEL Dataflash description
/////////////////////////////////////////////////////////////////////////////////////////////////////
#define AT45DB011B		0x0C
#define AT45DB021B		0x14
#define AT45DB041B		0x1C
#define AT45DB081B		0x24
#define AT45DB161B		0x2C
#define AT45DB321B		0x34
#define AT45DB642		0x3C
#define AT45DB1282		0x10
#define AT45DB2562		0x18
#define AT45DB5122		0x20

/*#define AT45DB642 { 8192, 1056, 11, 8, 0x700 }
#define AT45DB321B { 8192, 528, 10, 8, 0x300 }
#define AT45DCB004 AT45DB321B
#define AT45DCB008 AT45DB642
*/

#define AT91C_DF_TIMEOUT			10000000

/////////////////////////////////////////////////////////////////////////////////////////////////////
// Dataflash Interface Definition
/////////////////////////////////////////////////////////////////////////////////////////////////////
typedef enum  _AT91S_DF_SEM {
    UNLOCKED,
    LOCKED
} AT91S_DF_SEM;

typedef enum  _AT91S_DF_STATE {
	START_COMMAND,
	WAIT_FOR_BUSY,
	ERASE,
	END_OF_ERASE,

	START_WRITE,
	END_OF_WRITE,

	START_READ,
	END_OF_READ,
	READ_GET_STATUS,
	WAIT_FOR_READ_STATUS

} AT91S_DF_STATE;


// Dataflash Description Structure
typedef struct _AT91S_DF_DESC {
	int		pages_number;    //* dataflash page number
	int		pages_size;      //* dataflash page size
	int		page_offset;     //* page offset in command
	int             block_size;      //* nb page per block
	int		byte_mask;       //* byte mask in command
} AT91S_DF_DESC, *AT91PS_DF_DESC;

// Dataflash Descriptor Structure
typedef struct _AT91S_DF
{
	AT91PS_SPI      pSpi;
	unsigned char   bCs;
	AT91S_DF_SEM    bSemaphore;    //* SPI semaphore
	unsigned int    command[2];
 	AT91S_DF_DESC   dfDescription;
}AT91S_DF, *AT91PS_DF;

#define AT91C_DF_NB_BLOCS(pDf)  (pDf->dfDescription.pages_number / pDf->dfDescription.block_size)
#define AT91C_DF_BLOC_SIZE(pDf) (pDf->dfDescription.block_size * pDf->dfDescription.pages_size)
#define AT91C_DF_NB_PAGE(pDf)   (pDf->dfDescription.pages_number)
#define AT91C_PAGE_SIZE(pDf)    (pDf->dfDescription.pages_size)
#define AT91C_PAGE_OFFSET(pDf)    (pDf->dfDescription.page_offset)

extern char AT91F_DF_send_command (
	AT91PS_DF pDataFlash,
	unsigned char bCmd,      // Command value
	unsigned char bCmdSize,  // Command Size
	char          *pData,    // Data to be sent
	unsigned int  dDataSize, // Data Size
	unsigned int  dAddress); // Dataflash Address

extern char AT91F_DF_wait_ready(
	AT91PS_DF pDataFlash);

extern AT91S_DF_SEM AT91F_DF_is_busy(
	AT91PS_DF pDataFlash);

extern unsigned char AT91F_DF_read(
	AT91PS_DF pDf,
	char *pData,
	unsigned int dAddress);
	
extern unsigned char AT91F_DF_write(
	AT91PS_DF pDf,
	char *pData,
	unsigned int dAddress);
	
extern unsigned char AT91F_DF_erase(
	AT91PS_DF pDf,
	unsigned int dAddress);

/* ============ READ COMMANDS =============== */
#define AT91F_DF_continuous_read(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_CONTINUOUS_ARRAY_READ, 8, pData, dDataSize, dAddress)
#define AT91F_DF_page_read(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_READ, 8, pData, dDataSize, dAddress)
#define AT91F_DF_read_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF1_READ, 5, pData, dDataSize, dAddress)
#define AT91F_DF_read_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF2_READ, 5, pData, dDataSize, dAddress)
#define AT91F_DF_get_status(pDf) \
    AT91F_DF_send_command(pDf, DB_STATUS, 2, (char *) 0, 0, 0)

/* ============ WRITE COMMANDS =============== */
#define AT91F_DF_write_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF1_WRITE, 4, pData, dDataSize, dAddress)
#define AT91F_DF_write_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF2_WRITE, 4, pData, dDataSize, dAddress)

#define AT91F_DF_pgm_erase_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF1_PAGE_ERASE_PGM, 4, pData, dDataSize, dAddress)
#define AT91F_DF_pgm_erase_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF2_PAGE_ERASE_PGM, 4, pData, dDataSize, dAddress)

#define AT91F_DF_pgm_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF1_PAGE_PGM, 4, pData, dDataSize, dAddress)
#define AT91F_DF_pgm_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_BUF2_PAGE_PGM, 4, pData, dDataSize, dAddress)

#define AT91F_DF_page_write(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_PGM_BUF1, 4, pData, dDataSize, dAddress)

/* ============ ERASE COMMANDS =============== */
#define AT91F_DF_page_erase(pDf, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_ERASE, 4, (char *) 0, 0, dAddress)
#define AT91F_DF_block_erase(pDf, dAddress) \
    AT91F_DF_send_command(pDf, DB_BLOCK_ERASE, 4, (char *) 0, 0, dAddress)

/* ============ ADDITIONAL COMMANDS =============== */
#define AT91F_DF_trf_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_2_BUF1_TRF, 4, (char *) 0, 0, dAddress)
#define AT91F_DF_trf_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_2_BUF1_TRF, 4, (char *) 0, 0, dAddress)

#define AT91F_DF_cmp_buf1(pDf, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_2_BUF1_CMP, 4, (char *) 0, 0, dAddress)
#define AT91F_DF_cmp_buf2(pDf, dAddress) \
    AT91F_DF_send_command(pDf, DB_PAGE_2_BUF2_CMP, 4, (char *) 0, 0, dAddress)

#define AT91F_DF_rwr_buf1(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_AUTO_PAGE_PGM_BUF1, 4, (char *) 0, 0, dAddress)
#define AT91F_DF_rwr_buf2(pDf, pData, dDataSize, dAddress) \
    AT91F_DF_send_command(pDf, DB_AUTO_PAGE_PGM_BUF2, 4, (char *) 0, 0, dAddress)
/* ============ Status Register Fields =============== */
#define AT91F_DF_is_ready(pDf) \
    ((pDf)->command[0] & 0x8000)
#define AT91F_DF_is_different(pDf) \
    ((pDf)->command[0] & 0x4000)

//@-node:@file dataflash.h
//@-leo

#endif