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/projects/cubeos/src_current/drivers/i2c/analog.h File Reference

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Go to the source code of this file.

Compounds
struct	_I2C_ad_datas
	i2c a/d data structure. More...
Defines
#define	MAXI2CMESSLENGTH   8
#define	ANALOG_4SE   0x00;
#define	ANALOG_3DI   0x10;
#define	ANALOG_2S2D   0x20;
#define	ANALOG_2DI   0x30;
#define	ANALOG_DACOE   0x40;
Functions
int	I2C_ReadAnalogIn (int chip, int port)
	read one A/D input channel of a PCF8591 device. More...
int	I2C_WriteAnalogOut (int chip, int value)
	sets the D/A output channel of a PCF8591 chip. More...
int	I2C_ConfigureAnalog (int chip, char how)
	configure the a/d function of one PCF8591 chip. More...
int	I2C_init_analog ()
	configure all PCF8591 A/D-D/A devices. More...
Variables
_I2C_ad_datas	_I2C_ad_data [16]
	keeps information about the PCF8591 A/D - D/A converters in the system. More...
char	_I2C_analog_mbuf [MAXI2CMESSLENGTH]
i2cmess	_I2C_analog_m
int	_I2C_adnum

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Detailed Description

Definition in file analog.h.

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Define Documentation

#define ANALOG_2DI   0x30;

Definition at line 28 of file analog.h.

#define ANALOG_2S2D   0x20;

Definition at line 27 of file analog.h.

#define ANALOG_3DI   0x10;

Definition at line 26 of file analog.h.

#define ANALOG_4SE   0x00;

Definition at line 25 of file analog.h.

#define ANALOG_DACOE   0x40;

Definition at line 29 of file analog.h.

#define MAXI2CMESSLENGTH   8

Definition at line 23 of file analog.h.

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Function Documentation

int I2C_ReadAnalogIn (  int    chip, int    channel )

read one A/D input channel of a PCF8591 device. Parameters: chip  is the chip ID as set by init_analog() channel  is the A/D channel to read Definition at line 40 of file analog.c. References _I2C_ad_datas::da.

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Variable Documentation

int _I2C_adnum

Definition at line 48 of file analog.h.

struct i2cmess _I2C_analog_m

Definition at line 47 of file analog.h.

char _I2C_analog_mbuf[MAXI2CMESSLENGTH]

Definition at line 46 of file analog.h.

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