FLASHC interfaces a flash block with the 32-bit internal HSB bus.

Macros
#define	AVR32_FLASHC_REGIONS
	Number of flash regions defined by the FLASHC. More...

FLASHC Status
static unsigned int	flashc_error_status = 0
	Sticky error status of the FLASHC. More...

static unsigned int	flashc_get_error_status (void)
	Gets the error status of the FLASHC. More...

Flash Properties
unsigned int	flashc_get_flash_size (void)
	Gets the size of the whole flash array. More...

unsigned int	flashc_get_page_count (void)
	Gets the total number of pages in the flash array. More...

unsigned int	flashc_get_page_count_per_region (void)
	Gets the number of pages in each flash region. More...

unsigned int	flashc_get_page_region (int page_number)
	Gets the region number of a page. More...

unsigned int	flashc_get_region_first_page_number (unsigned int region)
	Gets the number of the first page of a region. More...

FLASHC Control
unsigned int	flashc_get_wait_state (void)
	Gets the number of wait states of flash read accesses. More...

void	flashc_set_wait_state (unsigned int wait_state)
	Sets the number of wait states of flash read accesses. More...

void	flashc_set_bus_freq (unsigned int cpu_f_hz)
	Depending on the CPU frequency, set the wait states of flash read accesses. More...

bool	flashc_is_ready_int_enabled (void)
	Tells whether the Flash Ready interrupt is enabled. More...

void	flashc_enable_ready_int (bool enable)
	Enables or disables the Flash Ready interrupt. More...

bool	flashc_is_lock_error_int_enabled (void)
	Tells whether the Lock Error interrupt is enabled. More...

void	flashc_enable_lock_error_int (bool enable)
	Enables or disables the Lock Error interrupt. More...

bool	flashc_is_prog_error_int_enabled (void)
	Tells whether the Programming Error interrupt is enabled. More...

void	flashc_enable_prog_error_int (bool enable)
	Enables or disables the Programming Error interrupt. More...

#define	flash_set_bus_freq(cpu_f_hz) flashc_set_bus_freq(cpu_f_hz)
	Alias on the flashc_set_bus_freq() function. More...

FLASHC Status
void(*volatile	flashc_wait_until_ready )(void)
	Pointer to the function used by the driver when it needs to wait until the FLASHC is ready to run a new command. More...

bool	flashc_is_ready (void)
	Tells whether the FLASHC is ready to run a new command. More...

void	flashc_default_wait_until_ready (void)
	Waits actively until the FLASHC is ready to run a new command. More...

bool	flashc_is_lock_error (void)
	Tells whether a Lock Error has occurred during the last function called that issued one or more FLASHC commands. More...

bool	flashc_is_programming_error (void)
	Tells whether a Programming Error has occurred during the last function called that issued one or more FLASHC commands. More...

FLASHC Command Control
unsigned int	flashc_get_command (void)
	Gets the last issued FLASHC command. More...

unsigned int	flashc_get_page_number (void)
	Gets the current FLASHC page number. More...

void	flashc_issue_command (unsigned int command, int page_number)
	Issues a FLASHC command. More...

FLASHC Global Commands
void	flashc_no_operation (void)
	Issues a No Operation command to the FLASHC. More...

void	flashc_erase_all (void)
	Issues an Erase All command to the FLASHC. More...

FLASHC Protection Mechanisms
bool	flashc_is_security_bit_active (void)
	Tells whether the Security bit is active. More...

void	flashc_activate_security_bit (void)
	Activates the Security bit. More...

unsigned int	flashc_get_bootloader_protected_size (void)
	Gets the bootloader protected size. More...

unsigned int	flashc_set_bootloader_protected_size (unsigned int bootprot_size)
	Sets the bootloader protected size. More...

bool	flashc_is_external_privileged_fetch_locked (void)
	Tells whether external privileged fetch is locked. More...

void	flashc_lock_external_privileged_fetch (bool lock)
	Locks or unlocks external privileged fetch. More...

bool	flashc_is_page_region_locked (int page_number)
	Tells whether the region of a page is locked. More...

bool	flashc_is_region_locked (unsigned int region)
	Tells whether a region is locked. More...

void	flashc_lock_page_region (int page_number, bool lock)
	Locks or unlocks the region of a page. More...

void	flashc_lock_region (unsigned int region, bool lock)
	Locks or unlocks a region. More...

void	flashc_lock_all_regions (bool lock)
	Locks or unlocks all regions. More...

Access to General-Purpose Fuses
bool	flashc_read_gp_fuse_bit (unsigned int gp_fuse_bit)
	Reads a general-purpose fuse bit. More...

uint64_t	flashc_read_gp_fuse_bitfield (unsigned int pos, unsigned int width)
	Reads a general-purpose fuse bit-field. More...

uint8_t	flashc_read_gp_fuse_byte (unsigned int gp_fuse_byte)
	Reads a general-purpose fuse byte. More...

uint64_t	flashc_read_all_gp_fuses (void)
	Reads all general-purpose fuses. More...

bool	flashc_erase_gp_fuse_bit (unsigned int gp_fuse_bit, bool check)
	Erases a general-purpose fuse bit. More...

bool	flashc_erase_gp_fuse_bitfield (unsigned int pos, unsigned int width, bool check)
	Erases a general-purpose fuse bit-field. More...

bool	flashc_erase_gp_fuse_byte (unsigned int gp_fuse_byte, bool check)
	Erases a general-purpose fuse byte. More...

bool	flashc_erase_all_gp_fuses (bool check)
	Erases all general-purpose fuses. More...

void	flashc_write_gp_fuse_bit (unsigned int gp_fuse_bit, bool value)
	Writes a general-purpose fuse bit. More...

void	flashc_write_gp_fuse_bitfield (unsigned int pos, unsigned int width, uint64_t value)
	Writes a general-purpose fuse bit-field. More...

void	flashc_write_gp_fuse_byte (unsigned int gp_fuse_byte, uint8_t value)
	Writes a general-purpose fuse byte. More...

void	flashc_write_all_gp_fuses (uint64_t value)
	Writes all general-purpose fuses. More...

void	flashc_set_gp_fuse_bit (unsigned int gp_fuse_bit, bool value)
	Sets a general-purpose fuse bit with the appropriate erase and write operations. More...

void	flashc_set_gp_fuse_bitfield (unsigned int pos, unsigned int width, uint64_t value)
	Sets a general-purpose fuse bit-field with the appropriate erase and write operations. More...

void	flashc_set_gp_fuse_byte (unsigned int gp_fuse_byte, uint8_t value)
	Sets a general-purpose fuse byte with the appropriate erase and write operations. More...

void	flashc_set_all_gp_fuses (uint64_t value)
	Sets all general-purpose fuses with the appropriate erase and write operations. More...

Access to Flash Pages
void	flashc_clear_page_buffer (void)
	Clears the page buffer. More...

bool	flashc_is_page_erased (void)
	Tells whether the page to which the last Quick Page Read or Quick Page Read User Page command was applied was erased. More...

bool	flashc_quick_page_read (int page_number)
	Applies the Quick Page Read command to a page. More...

bool	flashc_erase_page (int page_number, bool check)
	Erases a page. More...

bool	flashc_erase_all_pages (bool check)
	Erases all pages within the flash array. More...

void	flashc_write_page (int page_number)
	Writes a page from the page buffer. More...

bool	flashc_quick_user_page_read (void)
	Issues a Quick Page Read User Page command to the FLASHC. More...

bool	flashc_erase_user_page (bool check)
	Erases the User page. More...

void	flashc_write_user_page (void)
	Writes the User page from the page buffer. More...

volatile void *	flashc_memset8 (volatile void *dst, uint8_t src, size_t nbytes, bool erase)
	Copies nbytes bytes to the flash destination pointed to by dst from the repeated src source byte. More...

volatile void *	flashc_memset16 (volatile void *dst, uint16_t src, size_t nbytes, bool erase)
	Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source half-word. More...

volatile void *	flashc_memset32 (volatile void *dst, uint32_t src, size_t nbytes, bool erase)
	Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source word. More...

volatile void *	flashc_memset64 (volatile void *dst, uint64_t src, size_t nbytes, bool erase)
	Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source double-word. More...

volatile void *	flashc_memcpy (volatile void dst, const void src, size_t nbytes, bool erase)
	Copies nbytes bytes to the flash destination pointed to by dst from the source pointed to by src. More...

void	flashc_set_flash_waitstate_and_readmode (unsigned long cpu_f_hz)
	Depending to the CPU frequency, set the wait states of flash read accesses and enable or disable the High speed read mode. More...

#define	flashc_memset(dst, src, src_width, nbytes, erase) TPASTE2(flashc_memset, src_width)((dst), (src), (nbytes), (erase))
	Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source pattern. More...

#define AVR32_FLASHC_REGIONS

Value:

(AVR32_FLASHC_FLASH_SIZE /\

(AVR32_FLASHC_PAGES_PR_REGION * AVR32_FLASHC_PAGE_SIZE))

Number of flash regions defined by the FLASHC.

Referenced by flashc_get_page_count_per_region(), flashc_is_region_locked(), and flashc_lock_all_regions().

#define flash_set_bus_freq ( cpu_f_hz ) flashc_set_bus_freq(cpu_f_hz)

Alias on the flashc_set_bus_freq() function.

Parameters

cpu_f_hz The CPU frequency

Referenced by sysclk_init().

#define flashc_memset	(	dst,
		src,
		src_width,
		nbytes,
		erase
	)	TPASTE2(flashc_memset, src_width)((dst), (src), (nbytes), (erase))

Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source pattern.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Source double-word.
src_width	src width in bits: 8, 16, 32 or 64.
nbytes	Number of bytes to set.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

void flashc_activate_security_bit ( void )

Activates the Security bit.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_issue_command().

void flashc_clear_page_buffer ( void )

Clears the page buffer.

This command resets all bits in the page buffer to one. Write accesses to the page buffer can only change page buffer bits from one to zero.

Warning: The page buffer is not automatically reset after a page write.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_issue_command().

Referenced by flashc_memcpy(), and flashc_memset64().

void flashc_default_wait_until_ready ( void )

Waits actively until the FLASHC is ready to run a new command.

This is the default function assigned to flashc_wait_until_ready.

References flashc_is_ready().

void flashc_enable_lock_error_int ( bool enable )

Enables or disables the Lock Error interrupt.

Parameters

enable Whether to enable the Lock Error interrupt: true or false.

References u_avr32_flashc_fcr_t::fcr, and u_avr32_flashc_fcr_t::FCR.

void flashc_enable_prog_error_int ( bool enable )

Enables or disables the Programming Error interrupt.

Parameters

enable Whether to enable the Programming Error interrupt: true or false.

References u_avr32_flashc_fcr_t::fcr, and u_avr32_flashc_fcr_t::FCR.

void flashc_enable_ready_int ( bool enable )

Enables or disables the Flash Ready interrupt.

Parameters

enable Whether to enable the Flash Ready interrupt: true or false.

References u_avr32_flashc_fcr_t::fcr, and u_avr32_flashc_fcr_t::FCR.

void flashc_erase_all ( void )

Issues an Erase All command to the FLASHC.

This command erases all bits in the flash array, the general-purpose fuse bits and the Security bit. The User page is not erased.

This command also ensures that all volatile memories, such as register file and RAMs, are erased before the Security bit is erased, i.e. deactivated.

Warning: A Lock Error is issued if at least one region is locked or the bootloader protection is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.

References flashc_issue_command().

bool flashc_erase_all_gp_fuses ( bool check )

Erases all general-purpose fuses.

Parameters

check Whether to check erase: true or false.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_issue_command(), and flashc_read_all_gp_fuses().

Referenced by flashc_erase_gp_fuse_byte(), and flashc_set_all_gp_fuses().

bool flashc_erase_all_pages ( bool check )

Erases all pages within the flash array.

Parameters

check Whether to check erase: true or false.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if at least one region is locked or the bootloader protection is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.

References flashc_erase_page(), flashc_error_status, and flashc_get_page_count().

bool flashc_erase_gp_fuse_bit	(	unsigned int	gp_fuse_bit,
		bool	check
	)

Erases a general-purpose fuse bit.

Parameters

gp_fuse_bit	The general-purpose fuse bit: `0` to `63`.
check	Whether to check erase: `true` or `false`.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_issue_command(), and flashc_read_gp_fuse_bit().

Referenced by flashc_erase_gp_fuse_bitfield(), and flashc_set_gp_fuse_bit().

bool flashc_erase_gp_fuse_bitfield	(	unsigned int	pos,
		unsigned int	width,
		bool	check
	)

Erases a general-purpose fuse bit-field.

Parameters

pos	The bit-position of the general-purpose fuse bit-field: `0` to `63`.
width	The bit-width of the general-purpose fuse bit-field: `0` to `64`.
check	Whether to check erase: `true` or `false`.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_erase_gp_fuse_bit(), flashc_error_status, flashc_read_gp_fuse_bitfield(), and min.

bool flashc_erase_gp_fuse_byte	(	unsigned int	gp_fuse_byte,
		bool	check
	)

Erases a general-purpose fuse byte.

Parameters

gp_fuse_byte	The general-purpose fuse byte: `0` to `7`.
check	Whether to check erase: `true` or `false`.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_erase_all_gp_fuses(), flashc_error_status, flashc_read_all_gp_fuses(), flashc_read_gp_fuse_byte(), and flashc_write_gp_fuse_byte().

Referenced by flashc_set_gp_fuse_byte().

bool flashc_erase_page	(	int	page_number,
		bool	check
	)

Erases a page.

Parameters

page_number	The page number: `0` to `(flashc_get_page_count() - 1)`: a page number within the flash array; `< 0`: the current page number.
check	Whether to check erase: `true` or `false`.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Warning: A Lock Error is issued if the command is applied to a page belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.

References flashc_error_status, flashc_issue_command(), and flashc_quick_page_read().

Referenced by flashc_erase_all_pages(), flashc_memcpy(), and flashc_memset64().

bool flashc_erase_user_page ( bool check )

Erases the User page.

Parameters

check Whether to check erase: true or false.

Returns: Whether the erase succeeded or always true if erase check was not requested.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; An erase operation can only set bits.

References flashc_issue_command(), and flashc_quick_user_page_read().

Referenced by flashc_memcpy(), and flashc_memset64().

unsigned int flashc_get_bootloader_protected_size ( void )

Gets the bootloader protected size.

Returns: The bootloader protected size in bytes.

References flashc_read_gp_fuse_bitfield().

Referenced by flashc_set_bootloader_protected_size().

unsigned int flashc_get_command ( void )

Gets the last issued FLASHC command.

Returns: The last issued FLASHC command.

static unsigned int flashc_get_error_status ( void )

static

Gets the error status of the FLASHC.

Returns: The error status of the FLASHC built up from AVR32_FLASHC_FSR_LOCKE_MASK and AVR32_FLASHC_FSR_PROGE_MASK.

Warning: This hardware error status is cleared by all functions reading the Flash Status Register (FSR). This function is therefore not part of the driver's API which instead presents flashc_is_lock_error and flashc_is_programming_error.

Referenced by flashc_issue_command().

unsigned int flashc_get_flash_size ( void )

Gets the size of the whole flash array.

Returns: The size of the whole flash array in bytes.

Referenced by flashc_get_page_count(), flashc_memcpy(), and flashc_memset64().

unsigned int flashc_get_page_count ( void )

Gets the total number of pages in the flash array.

Returns: The total number of pages in the flash array.

References flashc_get_flash_size().

Referenced by flashc_erase_all_pages(), and flashc_get_page_count_per_region().

unsigned int flashc_get_page_count_per_region ( void )

Gets the number of pages in each flash region.

Returns: The number of pages in each flash region.

References AVR32_FLASHC_REGIONS, and flashc_get_page_count().

Referenced by flashc_get_page_region(), and flashc_get_region_first_page_number().

unsigned int flashc_get_page_number ( void )

Gets the current FLASHC page number.

Returns: The current FLASHC page number.

Referenced by flashc_get_page_region().

unsigned int flashc_get_page_region ( int page_number )

Gets the region number of a page.

Parameters

page_number

The page number:

0 to (flashc_get_page_count() - 1): a page number within the flash array;
< 0: the current page number.

Returns: The region number of the specified page.

References flashc_get_page_count_per_region(), and flashc_get_page_number().

Referenced by flashc_is_page_region_locked().

unsigned int flashc_get_region_first_page_number ( unsigned int region )

Gets the number of the first page of a region.

Parameters

region The region number: 0 to (AVR32_FLASHC_REGIONS - 1).

Returns: The number of the first page of the specified region.

References flashc_get_page_count_per_region().

Referenced by flashc_lock_region().

unsigned int flashc_get_wait_state ( void )

Gets the number of wait states of flash read accesses.

Returns: The number of wait states of flash read accesses.

bool flashc_is_external_privileged_fetch_locked ( void )

Tells whether external privileged fetch is locked.

Returns: Whether external privileged fetch is locked.

References flashc_read_gp_fuse_bit().

bool flashc_is_lock_error ( void )

Tells whether a Lock Error has occurred during the last function called that issued one or more FLASHC commands.

Returns: Whether a Lock Error has occurred during the last function called that issued one or more FLASHC commands.

References flashc_error_status.

bool flashc_is_lock_error_int_enabled ( void )

Tells whether the Lock Error interrupt is enabled.

Returns: Whether the Lock Error interrupt is enabled.

bool flashc_is_page_erased ( void )

Tells whether the page to which the last Quick Page Read or Quick Page Read User Page command was applied was erased.

Returns: Whether the page to which the last Quick Page Read or Quick Page Read User Page command was applied was erased.

Referenced by flashc_quick_page_read(), and flashc_quick_user_page_read().

bool flashc_is_page_region_locked ( int page_number )

Tells whether the region of a page is locked.

Parameters

page_number

The page number:

0 to (flashc_get_page_count() - 1): a page number within the flash array;
< 0: the current page number.

Returns: Whether the region of the specified page is locked.

References flashc_get_page_region(), and flashc_is_region_locked().

bool flashc_is_prog_error_int_enabled ( void )

Tells whether the Programming Error interrupt is enabled.

Returns: Whether the Programming Error interrupt is enabled.

bool flashc_is_programming_error ( void )

Tells whether a Programming Error has occurred during the last function called that issued one or more FLASHC commands.

Returns: Whether a Programming Error has occurred during the last function called that issued one or more FLASHC commands.

References flashc_error_status.

bool flashc_is_ready ( void )

Tells whether the FLASHC is ready to run a new command.

Returns: Whether the FLASHC is ready to run a new command.

Referenced by flashc_default_wait_until_ready().

bool flashc_is_ready_int_enabled ( void )

Tells whether the Flash Ready interrupt is enabled.

Returns: Whether the Flash Ready interrupt is enabled.

bool flashc_is_region_locked ( unsigned int region )

Tells whether a region is locked.

Parameters

region The region number: 0 to (AVR32_FLASHC_REGIONS - 1).

Returns: Whether the specified region is locked.

References AVR32_FLASHC_REGIONS.

Referenced by flashc_is_page_region_locked().

bool flashc_is_security_bit_active ( void )

Tells whether the Security bit is active.

Returns: Whether the Security bit is active.

void flashc_issue_command	(	unsigned int	command,
		int	page_number
	)

Issues a FLASHC command.

Parameters

command	The command: `AVR32_FLASHC_FCMD_CMD_x`.
page_number	The page number to apply the command to: `0` to `(flashc_get_page_count() - 1)`: a page number within the flash array; `< 0`: use this to apply the command to the current page number or if the command does not apply to any page number; this argument may have other meanings according to the command. See the FLASHC chapter of the MCU datasheet.

Warning: A Lock Error is issued if the command violates the protection mechanism.; A Programming Error is issued if the command is invalid.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References u_avr32_flashc_fcmd_t::fcmd, u_avr32_flashc_fcmd_t::FCMD, flashc_error_status, flashc_get_error_status(), and flashc_wait_until_ready.

Referenced by flashc_activate_security_bit(), flashc_clear_page_buffer(), flashc_erase_all(), flashc_erase_all_gp_fuses(), flashc_erase_gp_fuse_bit(), flashc_erase_page(), flashc_erase_user_page(), flashc_lock_page_region(), flashc_no_operation(), flashc_quick_page_read(), flashc_quick_user_page_read(), flashc_write_gp_fuse_bit(), flashc_write_gp_fuse_byte(), flashc_write_page(), flashc_write_user_page(), and pm_configure_clocks().

void flashc_lock_all_regions ( bool lock )

Locks or unlocks all regions.

Parameters

lock	Whether to lock the regions: `true` or `false`.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References AVR32_FLASHC_REGIONS, flashc_error_status, and flashc_lock_region().

void flashc_lock_external_privileged_fetch ( bool lock )

Locks or unlocks external privileged fetch.

Parameters

lock	Whether to lock external privileged fetch: `true` or `false`.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_set_gp_fuse_bit().

void flashc_lock_page_region	(	int	page_number,
		bool	lock
	)

Locks or unlocks the region of a page.

Parameters

page_number	The page number: `0` to `(flashc_get_page_count() - 1)`: a page number within the flash array; `< 0`: the current page number.
lock	Whether to lock the region of the specified page: `true` or `false`.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_issue_command().

Referenced by flashc_lock_region().

void flashc_lock_region	(	unsigned int	region,
		bool	lock
	)

Locks or unlocks a region.

Parameters

region	The region number: `0` to `(AVR32_FLASHC_REGIONS - 1)`.
lock	Whether to lock the specified region: `true` or `false`.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_get_region_first_page_number(), and flashc_lock_page_region().

Referenced by flashc_lock_all_regions().

volatile void* flashc_memcpy	(	volatile void *	dst,
		const void *	src,
		size_t	nbytes,
		bool	erase
	)

Copies nbytes bytes to the flash destination pointed to by dst from the source pointed to by src.

The destination areas that are not within the flash array or the User page are caught by an Assert() operation.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Pointer to source data.
nbytes	Number of bytes to copy.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: If copying takes place between areas that overlap, the behavior is undefined.; This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References Assert, flashc_clear_page_buffer(), flashc_erase_page(), flashc_erase_user_page(), flashc_error_status, flashc_get_flash_size(), flashc_write_page(), flashc_write_user_page(), Union64::u64, and Union64::u8.

volatile void* flashc_memset16	(	volatile void *	dst,
		uint16_t	src,
		size_t	nbytes,
		bool	erase
	)

Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source half-word.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Source half-word.
nbytes	Number of bytes to set.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_memset32().

Referenced by flashc_memset8().

volatile void* flashc_memset32	(	volatile void *	dst,
		uint32_t	src,
		size_t	nbytes,
		bool	erase
	)

Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source word.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Source word.
nbytes	Number of bytes to set.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_memset64().

Referenced by flashc_memset16().

volatile void* flashc_memset64	(	volatile void *	dst,
		uint64_t	src,
		size_t	nbytes,
		bool	erase
	)

Copies nbytes bytes to the flash destination pointed to by dst from the repeated src big-endian source double-word.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Source double-word.
nbytes	Number of bytes to set.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References Align_down, flashc_clear_page_buffer(), flashc_erase_page(), flashc_erase_user_page(), flashc_error_status, flashc_get_flash_size(), flashc_write_page(), flashc_write_user_page(), Get_align, min, Test_align, StructCVPtr::u16ptr, StructCVPtr::u32ptr, Union64::u64, UnionVPtr::u64ptr, UnionCVPtr::u64ptr, StructCVPtr::u64ptr, Union64::u8, UnionVPtr::u8ptr, UnionCVPtr::u8ptr, and StructCVPtr::u8ptr.

Referenced by flashc_memset32().

volatile void* flashc_memset8	(	volatile void *	dst,
		uint8_t	src,
		size_t	nbytes,
		bool	erase
	)

Copies nbytes bytes to the flash destination pointed to by dst from the repeated src source byte.

All pointer and size alignments are supported.

Parameters

dst	Pointer to flash destination.
src	Source byte.
nbytes	Number of bytes to set.
erase	Whether to erase before writing: `true` or `false`.

Returns: The value of dst.

Warning: This function may be called with erase set to false only if the destination consists only of erased words, i.e. this function can not be used to write only one bit of a previously written word. E.g., if 0x00000001 then 0xFFFFFFFE are written to a word, the resulting value in flash may be different from 0x00000000.; A Lock Error is issued if the command is applied to pages belonging to a locked region or to the bootloader protected area.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_memset16().

void flashc_no_operation ( void )

Issues a No Operation command to the FLASHC.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_issue_command().

bool flashc_quick_page_read ( int page_number )

Applies the Quick Page Read command to a page.

Parameters

page_number

The page number:

0 to (flashc_get_page_count() - 1): a page number within the flash array;
< 0: the current page number.

Returns: Whether the specified page is erased.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_is_page_erased(), and flashc_issue_command().

Referenced by flashc_erase_page().

bool flashc_quick_user_page_read ( void )

Issues a Quick Page Read User Page command to the FLASHC.

Returns: Whether the User page is erased.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References flashc_is_page_erased(), and flashc_issue_command().

Referenced by flashc_erase_user_page().

uint64_t flashc_read_all_gp_fuses ( void )

Reads all general-purpose fuses.

Returns: The value of all general-purpose fuses as a word.

Note: The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

Referenced by flashc_erase_all_gp_fuses(), flashc_erase_gp_fuse_byte(), flashc_read_gp_fuse_bit(), flashc_read_gp_fuse_bitfield(), and flashc_read_gp_fuse_byte().

bool flashc_read_gp_fuse_bit ( unsigned int gp_fuse_bit )

Reads a general-purpose fuse bit.

Parameters

gp_fuse_bit The general-purpose fuse bit: 0 to 63.

Returns: The value of the specified general-purpose fuse bit.

Note: The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_read_all_gp_fuses().

Referenced by flashc_erase_gp_fuse_bit(), and flashc_is_external_privileged_fetch_locked().

uint64_t flashc_read_gp_fuse_bitfield	(	unsigned int	pos,
		unsigned int	width
	)

Reads a general-purpose fuse bit-field.

Parameters

pos	The bit-position of the general-purpose fuse bit-field: `0` to `63`.
width	The bit-width of the general-purpose fuse bit-field: `0` to `64`.

Returns: The value of the specified general-purpose fuse bit-field.

Note: The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_read_all_gp_fuses(), and min.

Referenced by flashc_erase_gp_fuse_bitfield(), and flashc_get_bootloader_protected_size().

uint8_t flashc_read_gp_fuse_byte ( unsigned int gp_fuse_byte )

Reads a general-purpose fuse byte.

Parameters

gp_fuse_byte The general-purpose fuse byte: 0 to 7.

Returns: The value of the specified general-purpose fuse byte.

Note: The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_read_all_gp_fuses().

Referenced by flashc_erase_gp_fuse_byte().

void flashc_set_all_gp_fuses ( uint64_t value )

Sets all general-purpose fuses with the appropriate erase and write operations.

Parameters

value The value of all general-purpose fuses as a word.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_erase_all_gp_fuses(), flashc_error_status, and flashc_write_all_gp_fuses().

unsigned int flashc_set_bootloader_protected_size ( unsigned int bootprot_size )

Sets the bootloader protected size.

Parameters

bootprot_size The wanted bootloader protected size in bytes. If this size is not supported, the actual size will be the nearest greater available size or the maximal possible size if the requested size is too large.

Returns: The actual bootloader protected size in bytes.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.

References clz, flashc_get_bootloader_protected_size(), flashc_set_gp_fuse_bitfield(), max, and min.

void flashc_set_bus_freq ( unsigned int cpu_f_hz )

Depending on the CPU frequency, set the wait states of flash read accesses.

Parameters

cpu_f_hz The CPU frequency

References flashc_set_wait_state().

void flashc_set_flash_waitstate_and_readmode ( unsigned long cpu_f_hz )

Depending to the CPU frequency, set the wait states of flash read accesses and enable or disable the High speed read mode.

Parameters

cpu_f_hz The CPU frequency

Referenced by pcl_configure_synchronous_clocks(), and pcl_switch_to_osc().

void flashc_set_gp_fuse_bit	(	unsigned int	gp_fuse_bit,
		bool	value
	)

Sets a general-purpose fuse bit with the appropriate erase and write operations.

Parameters

gp_fuse_bit	The general-purpose fuse bit: `0` to `63`.
value	The value of the specified general-purpose fuse bit.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_erase_gp_fuse_bit(), and flashc_write_gp_fuse_bit().

Referenced by flashc_lock_external_privileged_fetch(), and flashc_set_gp_fuse_bitfield().

void flashc_set_gp_fuse_bitfield	(	unsigned int	pos,
		unsigned int	width,
		uint64_t	value
	)

Sets a general-purpose fuse bit-field with the appropriate erase and write operations.

Parameters

pos	The bit-position of the general-purpose fuse bit-field: `0` to `63`.
width	The bit-width of the general-purpose fuse bit-field: `0` to `64`.
value	The value of the specified general-purpose fuse bit-field.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_error_status, flashc_set_gp_fuse_bit(), and min.

Referenced by flashc_set_bootloader_protected_size().

void flashc_set_gp_fuse_byte	(	unsigned int	gp_fuse_byte,
		uint8_t	value
	)

Sets a general-purpose fuse byte with the appropriate erase and write operations.

Parameters

gp_fuse_byte	The general-purpose fuse byte: `0` to `7`.
value	The value of the specified general-purpose fuse byte.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_erase_gp_fuse_byte(), flashc_error_status, and flashc_write_gp_fuse_byte().

void flashc_set_wait_state ( unsigned int wait_state )

Sets the number of wait states of flash read accesses.

Parameters

wait_state The number of wait states of flash read accesses: 0 to 1.

References u_avr32_flashc_fcr_t::fcr, and u_avr32_flashc_fcr_t::FCR.

void flashc_write_all_gp_fuses ( uint64_t value )

Writes all general-purpose fuses.

Parameters

value The value of all general-purpose fuses as a word.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_error_status, and flashc_write_gp_fuse_byte().

Referenced by flashc_set_all_gp_fuses().

void flashc_write_gp_fuse_bit	(	unsigned int	gp_fuse_bit,
		bool	value
	)

Writes a general-purpose fuse bit.

Parameters

gp_fuse_bit	The general-purpose fuse bit: `0` to `63`.
value	The value of the specified general-purpose fuse bit.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_issue_command().

Referenced by flashc_set_gp_fuse_bit(), and flashc_write_gp_fuse_bitfield().

void flashc_write_gp_fuse_bitfield	(	unsigned int	pos,
		unsigned int	width,
		uint64_t	value
	)

Writes a general-purpose fuse bit-field.

Parameters

pos	The bit-position of the general-purpose fuse bit-field: `0` to `63`.
width	The bit-width of the general-purpose fuse bit-field: `0` to `64`.
value	The value of the specified general-purpose fuse bit-field.

Warning: A Lock Error is issued if the Security bit is active and the command is applied to BOOTPROT or EPFL fuses.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_error_status, flashc_write_gp_fuse_bit(), and min.

void flashc_write_gp_fuse_byte	(	unsigned int	gp_fuse_byte,
		uint8_t	value
	)

Writes a general-purpose fuse byte.

Parameters

gp_fuse_byte	The general-purpose fuse byte: `0` to `7`.
value	The value of the specified general-purpose fuse byte.

Warning: A Lock Error is issued if the Security bit is active.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.; The actual number of general-purpose fuse bits implemented by hardware is given by AVR32_FLASHC_GPF_NUM. The other bits among the 64 are fixed at 1 by hardware.

References flashc_issue_command().

Referenced by flashc_erase_gp_fuse_byte(), flashc_set_gp_fuse_byte(), and flashc_write_all_gp_fuses().

void flashc_write_page ( int page_number )

Writes a page from the page buffer.

Parameters

page_number

The page number:

0 to (flashc_get_page_count() - 1): a page number within the flash array;
< 0: the current page number.

Warning: A Lock Error is issued if the command is applied to a page belonging to a locked region or to the bootloader protected area.; The page buffer is not automatically reset after a page write.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.

References flashc_issue_command().

Referenced by flashc_memcpy(), and flashc_memset64().

void flashc_write_user_page ( void )

Writes the User page from the page buffer.

Warning: The page buffer is not automatically reset after a page write.

Note: The FLASHC error status returned by flashc_is_lock_error and flashc_is_programming_error is updated.; A write operation can only clear bits; in other words, an erase operation must first be done if some bits need to be set to 1.

References flashc_issue_command().

Referenced by flashc_memcpy(), and flashc_memset64().

unsigned int flashc_error_status = 0

static

Sticky error status of the FLASHC.

This variable is updated by functions that issue FLASHC commands. It contains the cumulated FLASHC error status of all the FLASHC commands issued by a function.

Referenced by flashc_erase_all_pages(), flashc_erase_gp_fuse_bitfield(), flashc_erase_gp_fuse_byte(), flashc_erase_page(), flashc_is_lock_error(), flashc_is_programming_error(), flashc_issue_command(), flashc_lock_all_regions(), flashc_memcpy(), flashc_memset64(), flashc_set_all_gp_fuses(), flashc_set_gp_fuse_bitfield(), flashc_set_gp_fuse_byte(), flashc_write_all_gp_fuses(), and flashc_write_gp_fuse_bitfield().

void(*volatile flashc_wait_until_ready)(void)

Pointer to the function used by the driver when it needs to wait until the FLASHC is ready to run a new command.

The default function is flashc_default_wait_until_ready. The user may change this pointer to use another implementation.

Referenced by flashc_issue_command().

Microchip® Advanced Software Framework

Macros

FLASHC Status

Flash Properties

FLASHC Control

FLASHC Status

FLASHC Command Control

FLASHC Global Commands

FLASHC Protection Mechanisms

Access to General-Purpose Fuses

Access to Flash Pages