Defines
#define	FLASH_CONF_SECTOR 0x0003FF00
	Address offset of the configuration sector.
#define	FLASH_CONF_SIZE AVR32_FLASHC_PAGE_SIZE
	Size of the configuration area.
#define	FLASH_WRITE_WAIT 60000
#define	FLASH_ERASE_WAIT 60000
#define	FLASH_CHIP_ERASE_WAIT 600000
Typedefs
typedef uint32_t	flashdat_t
typedef unsigned long	flashadr_t
typedef volatile flashdat_t *	flashptr_t
Functions
int	Avr32FlashcCmd (unsigned int cmd, uint32_t tmo)
	Execute flash controller command.
int	Avr32FlashcSectorRead (unsigned int off, void *data, unsigned int len)
	Read data from flash memory.
int	Avr32FlashcSectorWrite (unsigned int off, const void *data, unsigned int len)
	Write data into flash memory.
int	Avr32FlashcSectorErase (unsigned int off)
	Erase sector at the specified offset.
int	Avr32FlashcRegionLock (unsigned int off)
	Lock specified region.
int	Avr32FlashcRegionUnlock (unsigned int off)
	Unlock specified region.
int	Avr32FlashcParamRead (unsigned int pos, void *data, unsigned int len)
	Load configuration parameters from embedded flash memory.
int	Avr32FlashcParamWrite (unsigned int pos, const void *data, unsigned int len)
	Store configuration parameters in embedded flash memory.

Define Documentation

#define FLASH_CONF_SECTOR 0x0003FF00

Address offset of the configuration sector.

Referenced by Avr32FlashcParamRead(), and Avr32FlashcParamWrite().

#define FLASH_CONF_SIZE AVR32_FLASHC_PAGE_SIZE

Size of the configuration area.

During write operations a buffer with this size is allocated from heap and may cause memory problems with large sectors. Thus, this value may be less than the size of the configuration sector, in which case the rest of the sector is unused.

Currently only 1 sector can be used for system configurations.

Referenced by Avr32FlashcParamWrite().

#define FLASH_WRITE_WAIT 60000

Referenced by Avr32FlashcRegionLock(), Avr32FlashcRegionUnlock(), and Avr32FlashcSectorWrite().

#define FLASH_ERASE_WAIT 60000

Referenced by Avr32FlashcSectorErase().

#define FLASH_CHIP_ERASE_WAIT 600000

Typedef Documentation

typedef uint32_t flashdat_t

typedef unsigned long flashadr_t

typedef volatile flashdat_t* flashptr_t

Function Documentation

int Avr32FlashcCmd	(	unsigned int	cmd,
		uint32_t	tmo
	)

Execute flash controller command.

References NutEnterCritical, NutExitCritical, outr, and rc.

Referenced by Avr32FlashcRegionLock(), Avr32FlashcRegionUnlock(), Avr32FlashcSectorErase(), and Avr32FlashcSectorWrite().

int Avr32FlashcSectorRead	(	unsigned int	off,
		void *	data,
		unsigned int	len
	)

Read data from flash memory.

Parameters:

off	Start location within the chip, starting at 0.
data	Points to a buffer that receives the data.
len	Number of bytes to read.

Returns:: Always 0.

References memcpy().

Referenced by Avr32FlashcParamRead(), and Avr32FlashcParamWrite().

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int Avr32FlashcSectorWrite	(	unsigned int	off,
		const void *	data,
		unsigned int	len
	)

Write data into flash memory.

The related sector will be automatically erased before writing.

Parameters:

off	Start location within the chip, starting at 0.
data	Points to a buffer that contains the bytes to be written. If this is a NULL pointer, then the sector will be erased.
len	Number of bytes to write, 1 full sector max.

Returns:: 0 on success or -1 in case of an error.

References Avr32FlashcCmd(), Avr32FlashcSectorErase(), FLASH_WRITE_WAIT, and rc.

Referenced by Avr32FlashcParamWrite().

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int Avr32FlashcSectorErase ( unsigned int off )

Erase sector at the specified offset.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

For additional information see http://www.ethernut.de/

References Avr32FlashcCmd(), and FLASH_ERASE_WAIT.

Referenced by Avr32FlashcSectorWrite().

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int Avr32FlashcRegionLock ( unsigned int off )

Lock specified region.

Parameters: