Functions
void	S25FL_Setup (void)
	Setup SPI and IOs connected to Serial FLASH. More...

void	S25FL_WriteByte (unsigned char data, unsigned long address)
	Write a byte to the address specified (24 bit address) More...

unsigned char	S25FL_ReadByte (unsigned long address)
	Read a byte from the specified 24 bit address. More...

void	S25FL_WriteArray (unsigned long address, unsigned char *pData, unsigned int arrayLength)
	Write data array at the specified address , this procedure does page programming. The destination address should be provided. This function is not safe so the user has to check the arguments. More...

void	S25FL_ReadArray (unsigned long address, unsigned char *pData, unsigned int arrayLength)
	Read an array of data from the given address. More...

unsigned int	S25FL_ReadID (void)
	This function reads the Manufacturer ID code This procedure Reads the manufacturer's ID and device ID. More...

unsigned long	S25FL_Jedec_ID_Read (void)
	This procedure Reads the manufacturer's ID (BFh), memory type (25h) and device ID (4Bh). It will use 9Fh as the JEDEC ID command. More...

void	S25FL_ChipErase (void)
	Erase all chip contents. Erase is slow on flash chips. More...

void	S25FL_SectorErase (unsigned long address)
	This function erases a 4Kb sector (it erase a page actually) More...

void	S25FL_BlockErase (unsigned long address)
	This function erases a 64Kb block. More...

unsigned char	S25FL_IsWriteBusy (void)
	This function reads status register and checks BUSY bit for a write in progress operation.It waits until the device is no longer busy. More...

unsigned char	S25FL_SReg_Read (unsigned char statReg)
	Read specific Status Register depending on value of statReg. More...

void	S25FL_SReg_Write (unsigned char statReg)
	This procedure writes a byte to the Status Register. More...

void	S25FL_DeepSleep (void)
	Puts the flash chip into deep sleep mode. More...

void	S25FL_WakeUp (void)
	Wakes the flash memory chip from deep sleep mode. More...

void	S25FL_SetBlockProtection (unsigned char prot)
	Sets the block protection of the chip. More...

Detailed Description

These functions allow you the use the serial flash storage.

Function Documentation

void S25FL_BlockErase ( unsigned long address )

This function erases a 64Kb block.

Parameters

address Block address.

Returns: none

Definition at line 230 of file S25FL204K.c.

void S25FL_ChipErase ( void )

Erase all chip contents. Erase is slow on flash chips.

Returns: none

Definition at line 195 of file S25FL204K.c.

void S25FL_DeepSleep ( void )

Puts the flash chip into deep sleep mode.

Returns: none

Definition at line 295 of file S25FL204K.c.

unsigned char S25FL_IsWriteBusy ( void )

This function reads status register and checks BUSY bit for a write in progress operation.It waits until the device is no longer busy.

Returns: status Returns 1 if flash is in busy mode , 0 otherwise.

Definition at line 248 of file S25FL204K.c.

unsigned long S25FL_Jedec_ID_Read ( void )

This procedure Reads the manufacturer's ID (BFh), memory type (25h) and device ID (4Bh). It will use 9Fh as the JEDEC ID command.

Returns: deviceID 16 bit device id

Definition at line 177 of file S25FL204K.c.

void S25FL_ReadArray	(	unsigned long	address,
		unsigned char *	pData,
		unsigned int	arrayLength
	)

Read an array of data from the given address.

Parameters

address	Destination Address 000000H - 7FFFFFH
pData	Pointer to array of data
arrayLength	Length of pointer to array of data

Returns: none

Definition at line 129 of file S25FL204K.c.

unsigned char S25FL_ReadByte ( unsigned long address )

Read a byte from the specified 24 bit address.

Parameters

address Destination Address 000000H - 7FFFFFH

Returns: mybyte Data located on address

Definition at line 76 of file S25FL204K.c.

unsigned int S25FL_ReadID ( void )

This function reads the Manufacturer ID code This procedure Reads the manufacturer's ID and device ID.

Returns: deviceID 16 bit device id

Definition at line 156 of file S25FL204K.c.

void S25FL_SectorErase ( unsigned long address )

This function erases a 4Kb sector (it erase a page actually)

Parameters

address Address of the sector. Should start on a even boundary.

Returns: none

Definition at line 211 of file S25FL204K.c.

void S25FL_SetBlockProtection ( unsigned char prot )

Sets the block protection of the chip.

Parameters

prot	Protection settings.

Returns: none

Definition at line 318 of file S25FL204K.c.

void S25FL_Setup ( void )

Setup SPI and IOs connected to Serial FLASH.

Returns: none

Definition at line 39 of file S25FL204K.c.

unsigned char S25FL_SReg_Read ( unsigned char statReg )

Read specific Status Register depending on value of statReg.

Parameters

statReg Address of one of the status registers.

Returns: StatusReg Contents of status register

Definition at line 264 of file S25FL204K.c.

void S25FL_SReg_Write ( unsigned char statReg )

This procedure writes a byte to the Status Register.

Parameters

statReg Address of one of the status registers.

Returns: none

Definition at line 279 of file S25FL204K.c.

void S25FL_WakeUp ( void )

Wakes the flash memory chip from deep sleep mode.

Returns: none

Definition at line 306 of file S25FL204K.c.

void S25FL_WriteArray	(	unsigned long	address,
		unsigned char *	pData,
		unsigned int	arrayLength
	)

Write data array at the specified address , this procedure does page programming. The destination address should be provided. This function is not safe so the user has to check the arguments.

Parameters

address	Destination Address 000000H - 7FFFFFH
pData	Pointer to array of data
arrayLength	Length of pointer to array of data

Returns: none

Definition at line 97 of file S25FL204K.c.

void S25FL_WriteByte	(	unsigned char	data,
		unsigned long	address
	)

Write a byte to the address specified (24 bit address)

Parameters

data	Byte data to be written on a specific address
address	24 bit address of the flash memory

Returns: none

Definition at line 51 of file S25FL204K.c.

Functions

Detailed Description

Function Documentation