dataflash.h

butterflylogger_src_20060822 for atmel avr

/*
    Last change:  RM   17 Jan 2001    11:35 
*/

//*****************************************************************************
//
//      COPYRIGHT (c) ATMEL Norway, 1996-2001
//
//      The copyright to the document(s) herein is the property of
//      ATMEL Norway, Norway.
//
//      The document(s) may be used  and/or copied only with the written
//      permission from ATMEL Norway or in accordance with the terms and
//      conditions stipulated in the agreement/contract under which the
//      document(s) have been supplied.
//
//*****************************************************************************
//
//  File........: DATAFLASH.H
//
//  Author(s)...: ATMEL Norway
//
//  Target(s)...: Independent
//
//  Description.: Defines and prototypes for AT45Dxxx
//
//  Revisions...:
//
//  YYYYMMDD - VER. - COMMENT                                       - SIGN.
//
//  20010117 - 0.10 - Generated file                                -  RM
//  20031009          port to avr-gcc/avr-libc                      - M.Thomas
//
//*****************************************************************************

#ifndef __DATAFLASH_INCLUDED
#define __DATAFLASH_INCLUDED
// mt #endif


//General macro definitions
//mtA
// #define sbi(port,bit)	(port |=  (1<<bit))
// #define cbi(port,bit)	(port &= ~(1<<bit))
//mtE

#define SetBit(x,y)		(x |= (y))
#define ClrBit(x,y)		(x &=~(y))
#define ChkBit(x,y)		(x  & (y))


//Dataflash opcodes
#define FlashPageRead				0x52	// Main memory page read
#define FlashToBuf1Transfer 		0x53	// Main memory page to buffer 1 transfer
#define Buf1Read					0x54	// Buffer 1 read
#define FlashToBuf2Transfer 		0x55	// Main memory page to buffer 2 transfer
#define Buf2Read					0x56	// Buffer 2 read
#define StatusReg					0x57	// Status register
#define AutoPageReWrBuf1			0x58	// Auto page rewrite through buffer 1
#define AutoPageReWrBuf2			0x59	// Auto page rewrite through buffer 2
#define FlashToBuf1Compare    		0x60	// Main memory page to buffer 1 compare
#define FlashToBuf2Compare	    	0x61	// Main memory page to buffer 2 compare
#define ContArrayRead				0x68	// Continuous Array Read (Note : Only A/B-parts supported)
#define FlashProgBuf1				0x82	// Main memory page program through buffer 1
#define Buf1ToFlashWE   			0x83	// Buffer 1 to main memory page program with built-in erase
#define Buf1Write					0x84	// Buffer 1 write
#define FlashProgBuf2				0x85	// Main memory page program through buffer 2
#define Buf2ToFlashWE   			0x86	// Buffer 2 to main memory page program with built-in erase
#define Buf2Write					0x87	// Buffer 2 write
#define Buf1ToFlash     			0x88	// Buffer 1 to main memory page program without built-in erase
#define Buf2ToFlash		         	0x89	// Buffer 2 to main memory page program without built-in erase



//Pin definitions for interface to the Dataflash


//Dataflash macro definitions
#define DF_CS_active	cbi(PORTB,0)
#define DF_CS_inactive	sbi(PORTB,0)


//Function definitions
void DF_SPI_init (void);
unsigned char DF_SPI_RW (unsigned char output);
unsigned char Read_DF_status (void);
void Page_To_Buffer (unsigned int PageAdr, unsigned char BufferNo);
unsigned char Buffer_Read_Byte (unsigned char BufferNo, unsigned int IntPageAdr);
void Buffer_Read_Str (unsigned char BufferNo, unsigned int IntPageAdr, unsigned int No_of_bytes, unsigned char *BufferPtr);
void Buffer_Write_Enable (unsigned char BufferNo, unsigned int IntPageAdr);
void Buffer_Write_Byte (unsigned char BufferNo, unsigned int IntPageAdr, unsigned char Data);
void Buffer_Write_Str (unsigned char BufferNo, unsigned int IntPageAdr, unsigned int No_of_bytes, unsigned char *BufferPtr);
void Buffer_To_Page (unsigned char BufferNo, unsigned int PageAdr);
void Cont_Flash_Read_Enable (unsigned int PageAdr, unsigned int IntPageAdr);

// *****************************[ End Of DATAFLASH.H ]*****************************

 
#endif