ad84xx.c File Reference

#include "port.h"
#include "ad84xx.h"

Include dependency graph for ad84xx.c:

Macros
#define	DAC_AD84XX_SPI_BITRATE   10000000
#define	DAC_AD84XX_FRAME_SIZE   10

Functions
void	dac_ad84xx_init (void)
	Initializes AD84XX DAC interface.
void	dac_ad84xx_set_val (uint8_t addr, uint8_t val)
	Write a value to the AD84xx DAC output register.
void	dac_ad84xx_set_res (uint8_t addr, uint16_t res)
	Converts a resistance value into a proportional divisor value for AD84xx.

Macro Definition Documentation

DAC_AD84XX_FRAME_SIZE

#define DAC_AD84XX_FRAME_SIZE   10

DAC_AD84XX_SPI_BITRATE

#define DAC_AD84XX_SPI_BITRATE   10000000

Function Documentation

dac_ad84xx_init()

void dac_ad84xx_init

(

void

)

Initializes AD84XX DAC interface.

Note

This module uses legacy SPI and controls SSEL as a GPIO

dac_ad84xx_set_res()

void dac_ad84xx_set_res	(	uint8_t	addr,
		uint16_t	res )

Converts a resistance value into a proportional divisor value for AD84xx.

Parameters

addr	Selects which potentiometer will be set
val	Output resistance value [in Ohms]

dac_ad84xx_set_val()

void dac_ad84xx_set_val	(	uint8_t	addr,
		uint8_t	val )

Write a value to the AD84xx DAC output register.

Parameters

addr	Selects which potentiometer will be set
val	Value to be set