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i2csw.c File Reference

Software-driven I2C interface using port pins. More...

#include <avr/io.h>
#include "i2csw.h"

Go to the source code of this file.

Defines
#define	QDEL   asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop");
#define	HDEL   asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop"); asm volatile("nop");
#define	I2C_SDL_LO   cbi( SDAPORT, SDA)
#define	I2C_SDL_HI   sbi( SDAPORT, SDA)
#define	I2C_SCL_LO   cbi( SCLPORT, SCL);
#define	I2C_SCL_HI   sbi( SCLPORT, SCL);
#define	I2C_SCL_TOGGLE   HDEL; I2C_SCL_HI; HDEL; I2C_SCL_LO;
#define	I2C_START   I2C_SDL_LO; QDEL; I2C_SCL_LO;
#define	I2C_STOP   HDEL; I2C_SCL_HI; QDEL; I2C_SDL_HI; HDEL;
Functions
UINT	i2cPutbyte (u08 b)
u08	i2cGetbyte (UINT last)
void	i2cInit (void)
	Initialize I2C EEPROM interface.
void	i2cSend (u08 device, u08 subAddr, u08 length, u08 *data)
	Send a byte sequence on the I2C bus.
void	i2cReceive (u08 device, u08 subAddr, u08 length, u08 *data)
	Retrieve a byte sequence on the I2C bus.

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Detailed Description

Software-driven I2C interface using port pins.

Definition in file i2csw.c.

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