Detailed Description

Definition of Fusion functions.

Definition in file fusion.c.

#include "fusion.h"

Functions
void	fusionWaitOnReady ()
	: Wait while Read/Busy Status bit in SRB is 1 (device is busy). More...

void	fusionGlobalProtect ()
	Protects all sectors by issuing a WE, then write of 0x7F to status register byte 1. These 2 write are accomplished with fusionWriteEnable() and fusionWriteSRB1(). More...

void	fusionGlobalUnprotect ()
	Unprotects all sectors by issuing a WE, then write of 0x00 to status register byte 1. These 2 write are accomplished with fusionWriteEnable() and fusionWriteSRB1(). More...

void	fusionReadArray (uint32_t address, uint8_t *rxBuffer, uint32_t rxNumBytes)
	OPCODE: 0x0B Reads rxNumBytes starting from location 'address' and stores the data in the byte array rxBuffer. This command can read at multiple frequencies but necessitates the use of a dummy cycle. More...

void	fusionReadArrayLF (uint32_t address, uint8_t *rxBuffer, uint32_t rxNumBytes)
	OPCODE: 0x03 Reads rxNumBytes starting from location 'address' and stores the data in the byte array rxBuffer. This command uses a low frequency read as specified in the datasheet. More...

void	fusionDualOutputRead (uint32_t address, uint8_t *rxBuffer, uint32_t rxNumBytes)
	OPCODE: 0x3B Reads 'txNumBytes' bytes of data in Dual Output Mode starting at 'address' using both SI and SO as inputs to master. More...

void	fusionPageErase (uint32_t address)
	OPCODE: 0x81 Erases a page of data (256 Bytes) starting from page address 'address.'. More...

void	fusionBlockErase4K (uint32_t address)
	OPCODE: 0x20 Erases a block of data (4 KBytes) starting from page address 'address.'. More...

void	fusionChipErase ()
	OPCODE: 0x60 Erases the entire chip by setting all bits. More...

void	fusionProgramArray (uint32_t address, uint8_t *txBuffer, uint32_t txNumBytes)
	OPCODE: 0x02 Programs 'txNumBytes' bytes of data starting at the address indicated by address. More...

void	fusionWriteEnable ()
	OPCODE: 0x06 Sends opcode to enable writing. More...

void	fusionWriteDisable ()
	OPCODE: 0x04 Sends opcode to disable writing. More...

void	fusionReadSR (uint8_t *rxBuffer)
	OPCODE: 0x05 Reads the value in the status register (bytes 1 and 2). More...

void	fusionWriteSRB1 (uint8_t data)
	OPCODE: 0x01 Writes the value in data to status register byte 1. More...

void	fusionWriteSRB2 (uint8_t data)
	OPCODE: 0x31 Writes the value in data to status register byte 2. More...

void	fusionReset ()
	OPCODE: 0xF0 Resets the flash device for immediately, regardless of what current operation is being performed. More...

void	fusionReadMID (uint8_t *rxBuffer)
	OPCODE: 0x9F Reads the manufacturer ID and stores the data in rxBuffer. More...

void	fusionDeepPowerDown ()
	OPCODE: 0xB9 Enters the device into Deep Power Down mode. fusionResumeFromDeepPowerDown() will wake it back up again. More...

void	fusionResumeFromDeepPowerDown ()
	OPCODE: 0xAB Wakes the device up from Deep Power Down mode (fusionDeepPowerDown()). More...

void	fusionUDPDMode ()
	OPCODE: 0x79 Sends the device into Ultra Deep Power Down Mode. Exit UDPD Mode by toggling CS with command ___ or using a JEDEC reset with command fusionHardwareReset(). More...

void	fusionSequentialProgramMode (uint8_t txBuffer)
	OPCODE: 0xAD Sends the byte in txBuffer to the flash device for programming. This command should only be called after fusionSequentialProgramModeEnbale(). More...

void	fusionDualInputProgram (uint32_t address, uint8_t *txBuffer, uint32_t txNumBytes)
	OPCODE: 0xA2 Programs 'txNumBytes' bytes of data in Dual Input Mode starting at 'address' using both SI and SO as outputs from master. More...

void	fusionProtectSector (uint32_t address)
	OPCODE: 0x36 Sends opcode to disable writing. More...

void	fusionUnprotectSector (uint32_t address)
	OPCODE: 0x39 Sends opcode to enable writing. More...

void	fusionReadSectorProtectionRegisters (uint32_t address, uint8_t *rxBuffer)
	OPCODE: 0x3C Reads the sector protection register at address 'address.' 0x00 -> Sector is unprotected. 0xFF -> Sector is protected. More...

void	fusionSequentialProgramModeEnable (uint32_t address, uint8_t txBuffer)
	OPCODE: 0xAD Enables sequential program mode and loads the starting address into the device. The first byte of data is also stored. More...

void	fusionHardwareReset ()
	Performs a hardware (JEDEC) reset on the device. More...

Variables
uint8_t	txFusionInternalBuffer [MAXIMUM_TX_BYTES]

Function Documentation

◆ fusionBlockErase4K()

void fusionBlockErase4K ( uint32_t address )

OPCODE: 0x20
Erases a block of data (4 KBytes) starting from page address 'address.'.

Parameters

address The 3 byte page address at which the block erase will start.

Return values

void

Definition at line 130 of file fusion.c.

◆ fusionChipErase()

void fusionChipErase ( )

OPCODE: 0x60
Erases the entire chip by setting all bits.

Return values

void

Definition at line 140 of file fusion.c.

◆ fusionDeepPowerDown()

void fusionDeepPowerDown ( )

OPCODE: 0xB9
Enters the device into Deep Power Down mode. fusionResumeFromDeepPowerDown() will wake it back up again.

Return values

void

Definition at line 240 of file fusion.c.

◆ fusionDualInputProgram()

void fusionDualInputProgram	(	uint32_t	address,
		uint8_t *	txBuffer,
		uint32_t	txNumBytes
	)

OPCODE: 0xA2
Programs 'txNumBytes' bytes of data in Dual Input Mode starting at 'address' using both SI and SO as outputs from master.

Parameters

address	The 3 bytes address indicating the first location to be written to.
txBuffer	Pointer to the tx bytes that will be stored in memory. Must have a minimum of txNumBytes elements.
txNumBytes	Number of non dummy bytes to be written to the device. txBuffer must have a minimum of this many elements.

Return values

void

Definition at line 289 of file fusion.c.

◆ fusionDualOutputRead()

void fusionDualOutputRead	(	uint32_t	address,
		uint8_t *	rxBuffer,
		uint32_t	rxNumBytes
	)

OPCODE: 0x3B
Reads 'txNumBytes' bytes of data in Dual Output Mode starting at 'address' using both SI and SO as inputs to master.

Parameters

address	Address starting from which the data in memory will be read.
rxBuffer	Pointer to the byte array in which the read data will be stored. Must have at least rxNumBytes elements.
rxNumBytes	Number of bytes to be read from the memory. rxBuffer must have a minimum of this many elements.

Return values

void

Definition at line 110 of file fusion.c.

◆ fusionGlobalProtect()

void fusionGlobalProtect ( )

Protects all sectors by issuing a WE, then write of 0x7F to status register byte 1. These 2 write are accomplished with fusionWriteEnable() and fusionWriteSRB1().

Return values

void

Definition at line 78 of file fusion.c.

◆ fusionGlobalUnprotect()

void fusionGlobalUnprotect ( )

Unprotects all sectors by issuing a WE, then write of 0x00 to status register byte 1. These 2 write are accomplished with fusionWriteEnable() and fusionWriteSRB1().

Return values

void

Definition at line 84 of file fusion.c.

◆ fusionHardwareReset()

void fusionHardwareReset ( )

Performs a hardware (JEDEC) reset on the device.

Return values

void

Definition at line 348 of file fusion.c.

◆ fusionPageErase()

void fusionPageErase ( uint32_t address )

OPCODE: 0x81
Erases a page of data (256 Bytes) starting from page address 'address.'.

Parameters

address The 3 byte page address at which the page erase will start.

Return values

void

Definition at line 120 of file fusion.c.

◆ fusionProgramArray()

void fusionProgramArray	(	uint32_t	address,
		uint8_t *	txBuffer,
		uint32_t	txNumBytes
	)

OPCODE: 0x02
Programs 'txNumBytes' bytes of data starting at the address indicated by address.

Parameters

address	The 3 bytes address indicating the first location to be written to.
txBuffer	Pointer to the tx bytes that will be stored in memory. Must have a minimum of txNumBytes elements.
txNumBytes	Number of bytes to be written to the device. txBuffer must have a minimum of this many elements.

Return values

void

Warning: Check datasheet for the maximum number of bytes that can be written, as well as the device behavior if writing goes beyond the page boundary.

Definition at line 150 of file fusion.c.

◆ fusionProtectSector()

void fusionProtectSector ( uint32_t address )

OPCODE: 0x36
Sends opcode to disable writing.

Parameters

address 3 byte address for the sector that will be protected.

Return values

void

Definition at line 306 of file fusion.c.

◆ fusionReadArray()

void fusionReadArray	(	uint32_t	address,
		uint8_t *	rxBuffer,
		uint32_t	rxNumBytes
	)

OPCODE: 0x0B
Reads rxNumBytes starting from location 'address' and stores the data in the byte array rxBuffer. This command can read at multiple frequencies but necessitates the use of a dummy cycle.

Parameters

address	Address starting from which the data in memory will be read.
rxBuffer	Pointer to the byte array in which the read data will be stored. Must have at least rxNumBytes elements.
rxNumBytes	Number of bytes to be read from the memory. rxBuffer must have a minimum of this many elements.

Return values

void

Definition at line 90 of file fusion.c.

◆ fusionReadArrayLF()

void fusionReadArrayLF	(	uint32_t	address,
		uint8_t *	rxBuffer,
		uint32_t	rxNumBytes
	)

OPCODE: 0x03
Reads rxNumBytes starting from location 'address' and stores the data in the byte array rxBuffer. This command uses a low frequency read as specified in the datasheet.

Parameters

address	3 byte address starting from which the data in memory will be read.
rxBuffer	Pointer to the byte array in which the read data will be stored. Must have at least rxNumBytes elements.
rxNumBytes	Number of bytes to be read from the memory. rxBuffer must have a minimum of this many elements.

Return values

void

Definition at line 100 of file fusion.c.

◆ fusionReadMID()

void fusionReadMID ( uint8_t * rxBuffer )

OPCODE: 0x9F
Reads the manufacturer ID and stores the data in rxBuffer.

Parameters

rxBuffer Pointer to a byte array in which the data will be stored. Minimum of 4 bytes required.

Return values

void

Definition at line 230 of file fusion.c.

◆ fusionReadSectorProtectionRegisters()

void fusionReadSectorProtectionRegisters	(	uint32_t	address,
		uint8_t *	rxBuffer
	)

OPCODE: 0x3C
Reads the sector protection register at address 'address.' 0x00 -> Sector is unprotected. 0xFF -> Sector is protected.

Parameters

address	3 byte address for the sector of interest.
rxBuffer	The byte buffer in which the value of the protection register will be stored.

Return values

void

Definition at line 326 of file fusion.c.

◆ fusionReadSR()

void fusionReadSR ( uint8_t * rxBuffer )

OPCODE: 0x05
Reads the value in the status register (bytes 1 and 2).

Parameters

rxBuffer Pointer to the byte array in which the read data will be stored. Must have at least 2 elements.

Return values

void

Definition at line 187 of file fusion.c.

◆ fusionReset()

void fusionReset ( )

OPCODE: 0xF0
Resets the flash device for immediately, regardless of what current operation is being performed.

Return values

void

Definition at line 219 of file fusion.c.

◆ fusionResumeFromDeepPowerDown()

void fusionResumeFromDeepPowerDown ( )

OPCODE: 0xAB
Wakes the device up from Deep Power Down mode (fusionDeepPowerDown()).

Return values

void

Definition at line 250 of file fusion.c.

◆ fusionSequentialProgramMode()

void fusionSequentialProgramMode ( uint8_t txBuffer )

OPCODE: 0xAD
Sends the byte in txBuffer to the flash device for programming. This command should only be called after fusionSequentialProgramModeEnbale().

Parameters

txBuffer The byte of data to be programmed.

Return values

void

Definition at line 278 of file fusion.c.

◆ fusionSequentialProgramModeEnable()

void fusionSequentialProgramModeEnable	(	uint32_t	address,
		uint8_t	txBuffer
	)

OPCODE: 0xAD
Enables sequential program mode and loads the starting address into the device. The first byte of data is also stored.

Parameters

address	The address from which the sequential programming will begin.
txBuffer	The first byte of data to be stored in flash memory.

Return values

void

Definition at line 336 of file fusion.c.

◆ fusionUDPDMode()

void fusionUDPDMode ( )

OPCODE: 0x79
Sends the device into Ultra Deep Power Down Mode. Exit UDPD Mode by toggling CS with command ___ or using a JEDEC reset with command fusionHardwareReset().

Return values

void

Definition at line 260 of file fusion.c.

◆ fusionUnprotectSector()

void fusionUnprotectSector ( uint32_t address )

OPCODE: 0x39
Sends opcode to enable writing.

Parameters

address 3 byte address for the sector that will be unprotected.

Return values

void

Definition at line 316 of file fusion.c.

◆ fusionWaitOnReady()

void fusionWaitOnReady ( )

: Wait while Read/Busy Status bit in SRB is 1 (device is busy).

Return values

void

Definition at line 67 of file fusion.c.

◆ fusionWriteDisable()

void fusionWriteDisable ( )

OPCODE: 0x04
Sends opcode to disable writing.

Return values

void

Definition at line 177 of file fusion.c.

◆ fusionWriteEnable()

void fusionWriteEnable ( )

OPCODE: 0x06
Sends opcode to enable writing.

Return values

void

Definition at line 167 of file fusion.c.

◆ fusionWriteSRB1()

void fusionWriteSRB1 ( uint8_t data )

OPCODE: 0x01
Writes the value in data to status register byte 1.

Parameters

data	Byte of data to be written into status register byte 1.

Return values

void

Definition at line 197 of file fusion.c.

◆ fusionWriteSRB2()

void fusionWriteSRB2 ( uint8_t data )

OPCODE: 0x31
Writes the value in data to status register byte 2.

Parameters

data	Byte of data to be written into status register byte 2.

Return values

void

Definition at line 208 of file fusion.c.

Variable Documentation

◆ txFusionInternalBuffer

uint8_t txFusionInternalBuffer[MAXIMUM_TX_BYTES]

Definition at line 63 of file fusion.c.

Detailed Description

Functions

Variables

Function Documentation

◆ fusionBlockErase4K()

◆ fusionChipErase()

◆ fusionDeepPowerDown()

◆ fusionDualInputProgram()

◆ fusionDualOutputRead()

◆ fusionGlobalProtect()

◆ fusionGlobalUnprotect()

◆ fusionHardwareReset()

◆ fusionPageErase()

◆ fusionProgramArray()

◆ fusionProtectSector()

◆ fusionReadArray()

◆ fusionReadArrayLF()

◆ fusionReadMID()

◆ fusionReadSectorProtectionRegisters()

◆ fusionReadSR()

◆ fusionReset()

◆ fusionResumeFromDeepPowerDown()

◆ fusionSequentialProgramMode()

◆ fusionSequentialProgramModeEnable()

◆ fusionUDPDMode()

◆ fusionUnprotectSector()

◆ fusionWaitOnReady()

◆ fusionWriteDisable()

◆ fusionWriteEnable()

◆ fusionWriteSRB1()

◆ fusionWriteSRB2()

Variable Documentation

◆ txFusionInternalBuffer