sonarset.h

mega128的twi代码

#ifndef iccsonar
#define iccsonar

#include <avr/io.h>
#include <avr/delay.h>
#include <avr/macros.h>
#include <avr/pgmspace.h>
#include <avr/signal.h>
#include <avr/interrupt.h>
#include <util/twi.h>

#define ADDR_0   0xE0               //default address is 0xE0
#define ADDR_1   0xE2
#define ADDR_2   0xE4
#define ADDR_3   0xE6
#define ADDR_4   0xE8
#define ADDR_5   0xEA
#define ADDR_6   0xEC
#define ADDR_7   0xEE
#define ADDR_8   0xF0
#define ADDR_9   0xF2
#define ADDR_A   0xF4
#define ADDR_B   0xF6
#define ADDR_C   0xF8
#define ADDR_D   0xFA
#define ADDR_E   0xFC
#define ADDR_F   0xFE

void i2c_init(void);
unsigned char i2c_read(unsigned char address, unsigned char reg);
void i2c_transmit(unsigned char address, unsigned char reg, unsigned char data);
void addr_change(unsigned char source,unsigned char destination);
#endif