ads1220.c File Reference

Driver for the ADS1220 24-bits ADC from TI SPI communication. More...

#include "peripherals/ads1220.h"

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Macros
#define	ADS1220_WREG(_reg, _nb)   ((1<<6)|(_reg<<2)|(_nb-1))
#define	ADS1220_RREG(_reg, _nb)   ((1<<5)|(_reg<<2)|(_nb-1))
#define	ADS1220_RESET   0x06
#define	ADS1220_START_SYNC   0x08
#define	ADS1220_POWERDOWN   0x02
#define	ADS1220_RDATA   0x10
#define	ADS1220_CONF0   0x0
#define	ADS1220_CONF1   0x1
#define	ADS1220_CONF2   0x2
#define	ADS1220_CONF3   0x3

Functions
void	ads1220_init (struct Ads1220 *ads, struct spi_periph *spi_p, uint8_t slave_idx)
static void	ads1220_send_config (struct Ads1220 *ads)
void	ads1220_configure (struct Ads1220 *ads)
void	ads1220_read (struct Ads1220 *ads)
void	ads1220_event (struct Ads1220 *ads)

Detailed Description

Driver for the ADS1220 24-bits ADC from TI SPI communication.

Definition in file ads1220.c.

Macro Definition Documentation

ADS1220_CONF0

#define ADS1220_CONF0   0x0

Definition at line 42 of file ads1220.c.

ADS1220_CONF1

#define ADS1220_CONF1   0x1

Definition at line 43 of file ads1220.c.

ADS1220_CONF2

#define ADS1220_CONF2   0x2

Definition at line 44 of file ads1220.c.

ADS1220_CONF3

#define ADS1220_CONF3   0x3

Definition at line 45 of file ads1220.c.

ADS1220_POWERDOWN

#define ADS1220_POWERDOWN   0x02

Definition at line 38 of file ads1220.c.

ADS1220_RDATA

#define ADS1220_RDATA   0x10

Definition at line 39 of file ads1220.c.

ADS1220_RESET

#define ADS1220_RESET   0x06

Definition at line 36 of file ads1220.c.

ADS1220_RREG

#define ADS1220_RREG	(		_reg,
			_nb
	)		((1<<5)|(_reg<<2)|(_nb-1))

Definition at line 35 of file ads1220.c.

ADS1220_START_SYNC

#define ADS1220_START_SYNC   0x08

Definition at line 37 of file ads1220.c.

ADS1220_WREG

#define ADS1220_WREG	(		_reg,
			_nb
	)		((1<<6)|(_reg<<2)|(_nb-1))

Definition at line 34 of file ads1220.c.

Function Documentation

ads1220_configure()

void ads1220_configure

(

struct Ads1220 *

ads

)

Definition at line 102 of file ads1220.c.

References ADS1220_INITIALIZING, ADS1220_RESET, ads1220_send_config(), ADS1220_SEND_RESET, ADS1220_UNINIT, Ads1220::config, spi_transaction::input_length, spi_transaction::output_length, Ads1220::spi_p, spi_submit(), Ads1220::spi_trans, SPITransDone, SPITransSuccess, spi_transaction::status, Ads1220Config::status, and Ads1220::tx_buf.

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ads1220_event()

void ads1220_event

(

struct Ads1220 *

ads

)

Definition at line 130 of file ads1220.c.

References ADS1220_INITIALIZED, ADS1220_INITIALIZING, ADS1220_SEND_RESET, ADS1220_UNINIT, Ads1220::config, Ads1220::data, Ads1220::data_available, Ads1220::rx_buf, Ads1220::spi_trans, SPITransDone, SPITransFailed, SPITransSuccess, spi_transaction::status, and Ads1220Config::status.

Referenced by meteo_stick_event().

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ads1220_init()

void ads1220_init	(	struct Ads1220 *	ads,
		struct spi_periph *	spi_p,
		uint8_t	slave_idx
	)

Definition at line 49 of file ads1220.c.

References ADS1220_UNINIT, spi_transaction::after_cb, spi_transaction::before_cb, spi_transaction::bitorder, spi_transaction::cdiv, Ads1220::config, spi_transaction::cpha, spi_transaction::cpol, Ads1220::data, Ads1220::data_available, spi_transaction::dss, spi_transaction::input_buf, spi_transaction::input_length, spi_transaction::output_buf, spi_transaction::output_length, Ads1220::rx_buf, spi_transaction::select, spi_transaction::slave_idx, Ads1220::spi_p, Ads1220::spi_trans, SPICphaEdge2, SPICpolIdleLow, SPIDiv128, SPIDss8bit, SPIMSBFirst, SPISelectUnselect, SPITransDone, spi_transaction::status, Ads1220Config::status, and Ads1220::tx_buf.

Referenced by meteo_stick_init().

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ads1220_read()

void ads1220_read

(

struct Ads1220 *

ads

)

Definition at line 120 of file ads1220.c.

References ADS1220_INITIALIZED, Ads1220::config, spi_transaction::input_length, spi_transaction::output_length, Ads1220::spi_p, spi_submit(), Ads1220::spi_trans, SPITransDone, spi_transaction::status, and Ads1220Config::status.

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ads1220_send_config()

static void ads1220_send_config ( struct Ads1220 *  ads )

static

Definition at line 80 of file ads1220.c.

References ADS1220_CONF0, ADS1220_WREG, Ads1220::config, Ads1220Config::conv, Ads1220Config::gain, Ads1220Config::i1mux, Ads1220Config::i2mux, Ads1220Config::idac, spi_transaction::input_length, Ads1220Config::mux, spi_transaction::output_length, Ads1220Config::pga_bypass, Ads1220Config::rate, Ads1220::spi_p, spi_submit(), Ads1220::spi_trans, Ads1220::tx_buf, and Ads1220Config::vref.

Referenced by ads1220_configure().

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