Analog-to-digital Converter (ADC)

See Quickstart guide for SAM ADCIFE driver.

Driver for the Analog-to-digital Converter. This driver provides access to the main features of the ADC controller.

Functions
void	adc_ch_set_config (struct adc_dev_inst *const dev_inst, struct adc_ch_config *cfg)
	Configure ADC channel with specified value. More...
void	adc_disable (struct adc_dev_inst *const dev_inst)
	Disable ADC module. More...
status_code_t	adc_enable (struct adc_dev_inst *const dev_inst)
	Enable ADC module. More...
status_code_t	adc_init (struct adc_dev_inst *const dev_inst, Adcife *const adc, struct adc_config *const cfg)
	Initialize the ADC module. More...
static void	adc_interrupt (void)
	Common ADCIFE interrupt handler. More...
void	adc_pdca_set_config (struct adc_pdca_config *cfg)
	Configure ADC sequencer support multi-channel mode. More...
void	adc_set_callback (struct adc_dev_inst *const dev_inst, adc_interrupt_source_t source, adc_callback_t callback, uint8_t irq_line, uint8_t irq_level)
	Set callback for ADC. More...
void	adc_set_config (struct adc_dev_inst *const dev_inst, struct adc_config *cfg)
	Configure ADC with specified value. More...
void	ADCIFE_Handler (void)
	Interrupt handler for ADCIFE interrupt. More...

Variables
adc_callback_t	adc_callback_pointer

void adc_ch_set_config	(	struct adc_dev_inst *const	dev_inst,
		struct adc_ch_config *	cfg
	)

Configure ADC channel with specified value.

Parameters

dev_inst	Device structure pointer.
cfg	Pointer to ADC Channel configuration.

References adc_configure_wm_mode(), adc_configure_wm_threshold(), adc_ch_config::high_threshold, adc_dev_inst::hw_dev, adc_ch_config::low_threshold, adc_ch_config::seq_cfg, and adc_ch_config::window_mode.

Referenced by run_adcife_diff_test(), run_adcife_itimer_trig_test(), and run_adcife_wm_test().

void adc_disable

(

struct adc_dev_inst *const

dev_inst

)

Disable ADC module.

Parameters

dev_inst

Device structure pointer.

References adc_dev_inst::hw_dev, SLEEPMGR_SLEEP_1, sleepmgr_unlock_mode(), and sysclk_disable_peripheral_clock().

Referenced by run_adcife_wm_test().

status_code_t adc_enable

(

struct adc_dev_inst *const

dev_inst

)

Enable ADC module.

Parameters

dev_inst

Device structure pointer.

References ADC_NUM_OF_ATTEMPTS, ERR_TIMEOUT, adc_dev_inst::hw_dev, sleepmgr_lock_mode(), SLEEPMGR_SLEEP_1, STATUS_OK, and sysclk_enable_peripheral_clock().

Referenced by run_adcife_init_test().

status_code_t adc_init	(	struct adc_dev_inst *const	dev_inst,
		Adcife *const	adc,
		struct adc_config *const	cfg
	)

Initialize the ADC module.

Parameters

dev_inst	Device structure pointer.
adc	Base address of the ADC instance.
cfg	Pointer to AES configuration.

Return values

true	if the initialization was successful.
false	if initialization failed.

References adc_dev_inst::adc_cfg, adc_set_config(), Assert, adc_dev_inst::hw_dev, STATUS_OK, sysclk_disable_peripheral_clock(), and sysclk_enable_peripheral_clock().

Referenced by run_adcife_init_test().

static void adc_interrupt ( void  )

static

Common ADCIFE interrupt handler.

The optional callback used by the interrupt handler is set by the adcife_set_callback() function.

References adc_callback_pointer.

Referenced by ADCIFE_Handler().

void adc_pdca_set_config

(

struct adc_pdca_config *

cfg

)

Configure ADC sequencer support multi-channel mode.

Parameters

cfg	Pointer to ADC multi-channel mode configuration.

References pdca_channel_config_t::addr, adc_pdca_config::buffer, adc_pdca_config::cdma_cfg, adc_pdca_config::nb_channels, adc_pdca_config::pdc_rx_channel, adc_pdca_config::pdc_tx_channel, pdca_channel_enable(), pdca_channel_set_config(), pdca_enable(), and adc_pdca_config::wm.

Referenced by run_adcife_multichannel_test().

void adc_set_callback	(	struct adc_dev_inst *const	dev_inst,
		adc_interrupt_source_t	source,
		adc_callback_t	callback,
		uint8_t	irq_line,
		uint8_t	irq_level
	)

Set callback for ADC.

Parameters

dev_inst	Device structure pointer.
source	interrupt source.
callback	callback function pointer.
irq_line	interrupt line.
irq_level	interrupt level.

References adc_enable_interrupt(), and irq_register_handler.

Referenced by run_adcife_itimer_trig_test(), and run_adcife_wm_test().

void adc_set_config	(	struct adc_dev_inst *const	dev_inst,
		struct adc_config *	cfg
	)

Configure ADC with specified value.

Parameters

dev_inst	Device structure pointer.
cfg	Pointer to ADC configuration.

References adc_config::clksel, CONFIG_ADC_GENERIC_DIV, CONFIG_ADC_GENERIC_SRC, genclk_enable_config(), adc_dev_inst::hw_dev, adc_config::prescal, adc_config::refsel, adc_config::speed, and adc_config::start_up.

Referenced by adc_init().

void ADCIFE_Handler

(

void

)

Interrupt handler for ADCIFE interrupt.

References adc_interrupt().

adc_callback_t adc_callback_pointer

Referenced by adc_interrupt().