ADC

Analog-To-Digital Converter driver. More...

Functions
void	rflpc_adc_init (rflpc_pin_t pin, rflpc_clock_divider_t clock_divider)
	Initializes the Analog/Digital Converter on given pin. More...
void	rflpc_adc_burst_init (rflpc_clock_divider_t clock_divider, rflpc_irq_handler_t handler)
	Initializes the Analog/Digital converter for Burst Mode. More...
void	rflpc_adc_burst_enable (rflpc_pin_t pin)
	Enable an ADC pin to be sampled in burst mode. More...
void	rflpc_adc_burst_start ()
	Start ADC burst mode. More...
static void	rflpc_adc_sample (rflpc_pin_t pin)
	Start an ADC conversion on specified pin. More...
uint16_t	rflpc_adc_read (rflpc_pin_t pin)
	Read the last converted value of specified pin using dedicated data register. More...
uint16_t	rflpc_adc_read_global ()
	Read the last converted value of any ADC pin, using global data register. More...

Detailed Description

Analog-To-Digital Converter driver.

Function Documentation

void rflpc_adc_burst_enable

(

rflpc_pin_t

pin

)

Enable an ADC pin to be sampled in burst mode.

Parameters

pin	The desired pin to sample.

void rflpc_adc_burst_init	(	rflpc_clock_divider_t	clock_divider,
		rflpc_irq_handler_t	handler
	)

Initializes the Analog/Digital converter for Burst Mode.

Parameters

clock_divider	The divider applied to APB peripheral clock.
handler	Interruption handler

Note

This function DOES NOT actually starts the driver (see rflpc_adc_burst_start()).

void rflpc_adc_burst_start

(

)

Start ADC burst mode.

Note

This function actually starts the driver with burst mode enabled. Please check you have previously enabled all the adc pins you want to be sampled.

void rflpc_adc_init	(	rflpc_pin_t	pin,
		rflpc_clock_divider_t	clock_divider
	)

Initializes the Analog/Digital Converter on given pin.

Parameters

pin	The desired pin to sample.
clock_divider	The divider applied to APB peripheral clock.

Note

This function actually starts the driver.

APB peripheral clock is set by default at 13MHz, because the maximum sample clock is 13Mhz anyway.

uint16_t rflpc_adc_read

(

rflpc_pin_t

pin

)

Read the last converted value of specified pin using dedicated data register.

Parameters

pin	The ADC pin to read.

Returns

The value corresponding to specified pin's last conversion.

Note

Returned value is stored on 12 bits. Bit 15 stores the OVERRUN flag.

This function waits for a conversion to be done.

You should use ONLY ONE method to read converted values on ADC pins, as OVERRUN flag may be out of synchronization between registers.

uint16_t rflpc_adc_read_global

(

)

Read the last converted value of any ADC pin, using global data register.

Returns

The last converted value by any pin.

Note

Returned value is stored on 12 bits. Bits 12 to 14 store the pin from which the value has been converted. Bit 15 stores the OVERRUN flag.

This function waits for a conversion to be done.

You should use ONLY ONE method to read converted values on ADC pins, as OVERRUN flag may be out of synchronization between registers.

static void rflpc_adc_sample ( rflpc_pin_t  pin )

inlinestatic

Start an ADC conversion on specified pin.

Parameters

pin	the pin to be sampled.

Note

This only starts sampling, it does not wait until conversion is done.

Definition at line 85 of file adc.h.

References RFLPC_SET_BITS_VAL.