SAU Driver

Modules
	Related Project(s)
	In this section you can find all the projects related to the SAU Driver.

Data Structures
struct	sau_map_t
	A type definition of channels and HSB memories to be mapped. More...

Macros
#define	sau_clear_error_flags(error_flag)   (AVR32_SAU.icr = error_flag)
	Clear the error bits flags in SR. More...
#define	sau_disable()   (Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_DIS_MASK))
#define	sau_disable_buserr_resp()
#define	sau_disable_interrupt(int_source)   (AVR32_SAU.idr = int_source)
	Disable the SAU interrupt. More...
#define	sau_disable_open_mode()
#define	sau_enable()   (Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_EN_MASK))
	Enable/Disable the SAU module. More...
#define	sau_enable_buserr_resp()
	SAU Bus Error Exception response management. More...
#define	sau_enable_interrupt(int_source)   (AVR32_SAU.ier = int_source)
	Enable the SAU interrupt. More...
#define	sau_enable_open_mode()
	SAU open mode management. More...
#define	sau_enter_setup()   (Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_SEN_MASK))
	SAU setup mode management. More...
#define	sau_exit_setup()   (Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_SDIS_MASK))
#define	sau_status_check()   (AVR32_SAU.sr & (0xff ^ AVR32_SAU_SR_CAS_MASK))
	Check the error bits flags in SR. More...

Functions
bool	sau_configure_channels (const sau_map_t saumap, uint32_t size)
	Configs specific HSB memories for a set of channels. More...
void	sau_disable_channel (unsigned char channel_num)
void	sau_enable_channel (unsigned char channel_num)
void	sau_lock_channels (U8 unlock_HSB_cycles, U8 unlock_key)
	Lock SAU channels. More...
uint32_t	sau_read_channel (unsigned char channel_num)
	Read the HSB memory value by the SAU channel. More...
bool	sau_unlock_channel (U8 Unlock_channel_number, U8 Unlock_key)
	Unlock an SAU channel. More...
void	sau_write_channel (uint32_t data, unsigned char channel_num)
	Write the HSB memory value by the SAU channel. More...

#define sau_clear_error_flags

(

error_flag

)

(AVR32_SAU.icr = error_flag)

Clear the error bits flags in SR.

Parameters

error_flag,:

The error bits to be cleared

Referenced by main(), and sau_int_handler().

#define sau_disable

(

)

(Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_DIS_MASK))

#define sau_disable_buserr_resp

(

)

Value:

(Set_bits(AVR32_SAU.cr,         \
                        AVR32_SAU_CR_BERRDIS_MASK))

Referenced by main().

#define sau_disable_interrupt

(

int_source

)

(AVR32_SAU.idr = int_source)

Disable the SAU interrupt.

Parameters

interrupt_source,:

The events that will not generate interrupt request

Referenced by main().

#define sau_disable_open_mode

(

)

Value:

(Clr_bits(AVR32_SAU.config,      \
                        AVR32_SAU_CONFIG_OPEN_MASK))

#define sau_enable

(

)

(Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_EN_MASK))

Enable/Disable the SAU module.

Referenced by sau_config_to_usart().

#define sau_enable_buserr_resp

(

)

Value:

(Set_bits(AVR32_SAU.cr,         \
                        AVR32_SAU_CR_BERREN_MASK))

SAU Bus Error Exception response management.

Referenced by main().

#define sau_enable_interrupt

(

int_source

)

(AVR32_SAU.ier = int_source)

Enable the SAU interrupt.

Parameters

int_source,:

The events that will generate interrupt request

Referenced by main().

#define sau_enable_open_mode

(

)

Value:

(Set_bits(AVR32_SAU.config,      \
                        AVR32_SAU_CONFIG_OPEN_MASK))

SAU open mode management.

Referenced by main().

#define sau_enter_setup

(

)

(Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_SEN_MASK))

SAU setup mode management.

Referenced by sau_config_to_usart().

#define sau_exit_setup

(

)

(Set_bits(AVR32_SAU.cr, AVR32_SAU_CR_SDIS_MASK))

Referenced by sau_configure_channels().

#define sau_status_check

(

)

(AVR32_SAU.sr & (0xff ^ AVR32_SAU_SR_CAS_MASK))

Check the error bits flags in SR.

Referenced by main(), and sau_int_handler().

bool sau_configure_channels	(	const sau_map_t	sau_map,
		uint32_t	size
	)

Configs specific HSB memories for a set of channels.

Parameters

sau_map,:	The memory and channel map.
size,:	The number of channels in an SAU sau_map.

Returns

Bool TRUE if the config succeeded FALSE if the config failed (the input is not valid).

References sau_map_t::channel_num, sau_map_t::HSB_mem, i, sau_enable_channel(), and sau_exit_setup.

Referenced by sau_config_to_usart().

void sau_disable_channel

(

unsigned char

channel_num

)

Control of the SAU control register CERH/L: disable CERH/L

void sau_enable_channel

(

unsigned char

channel_num

)

Control of the SAU control register CERH/L: enable CERH/L

Referenced by sau_configure_channels().

void sau_lock_channels	(	U8	unlock_HSB_cycles,
		U8	unlock_key
	)

Lock SAU channels.

Parameters

unlock_HSB_cycles,:	The number of HSB cycles the channel keeps unlocked
unlock_key,:	The key to lock channels

References data.

Referenced by main().

uint32_t sau_read_channel

(

unsigned char

channel_num

)

Read the HSB memory value by the SAU channel.

Parameters

channel_num,:

The number of the channel to read

Returns

: the read value.

References data.

Referenced by sau_usart_tx_ready().

bool sau_unlock_channel	(	U8	unlock_channel_number,
		U8	unlock_key
	)

Unlock an SAU channel.

Parameters

unlock_channel_number,:	The number of the channel to unlock
unlock_key,:	The key to unlock a channel

Returns

Bool true if the config succeeded false if the config failed (the input is not valid).

References data.

Referenced by main().

void sau_write_channel	(	uint32_t	data,
		unsigned char	channel_num
	)

Write the HSB memory value by the SAU channel.

Parameters

channel_num,:	The number of the channel to write.
data,:	The data to write

References data.

Referenced by main().