Ice_flash

Flash chip I/O. More...

Macros
#define	ICE_FLASH_PAGE_SIZE   256
	The size of the flash.
#define	ICE_FLASH_SECTOR_SIZE   4096
#define	ICE_FLASH_BLOCK_SIZE   65536

Functions
void	ice_flash_init (void)
	Initialise the SPI1 peripheral, dedicated to flashing the FPGA.
void	ice_flash_read (uint32_t addr, uint8_t *buf, size_t sz)
	Communicate to the chip over SPI and read multiple bytes at chosen address onto onto a buffer.
void	ice_flash_erase_sector (uint32_t addr)
	Erase a sector of the flash chip at the given address.
void	ice_flash_program_page (uint32_t addr, uint8_t const page[ICE_FLASH_PAGE_SIZE])
	Program a page of the flash chip at the given address.
void	ice_flash_erase_block (uint32_t addr)
	Send a command to erase a whole block.
void	ice_flash_erase_chip (void)
	Send a command to erase the whole chip.
void	ice_flash_wakeup (void)
	Send a command to wakeup the chip.
void	ice_flash_sleep (void)
	Send a command to put the chip to sleep.

Detailed Description

Flash chip I/O.

All these functions act on the on-board flash chip. For a generic flash memory I/O, you can see the low-level ice_smem.h

Function Documentation

ice_flash_erase_block()

void ice_flash_erase_block

(

uint32_t

addr

)

Send a command to erase a whole block.

Parameters

addr	The address at which the data is written.

ice_flash_erase_sector()

void ice_flash_erase_sector

(

uint32_t

addr

)

Erase a sector of the flash chip at the given address.

Parameters

addr	The beginning of the sector.

ice_flash_program_page()

void ice_flash_program_page	(	uint32_t	addr,
		uint8_t const	page[ICE_FLASH_PAGE_SIZE]
	)

Program a page of the flash chip at the given address.

Parameters

addr	The address at which the data is written.
data	The buffer holding the data to be sent to the flash chip, of size ICE_FLASH_PAGE_SIZE.

ice_flash_read()

void ice_flash_read	(	uint32_t	addr,
		uint8_t *	buf,
		size_t	sz
	)

Communicate to the chip over SPI and read multiple bytes at chosen address onto onto a buffer.

Parameters

addr	The address at which the data is read.
data	The buffer onto which the data read is stored.
data_size	The size of the buffer in bytes.