i2cmaster.h

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00001 #ifndef _I2CMASTER_H
00002 #define _I2CMASTER_H   1
00003 
00004 
00005 #if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
00006 #error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
00007 #endif
00008 
00009 #include <avr/io.h>
00010 
00012 #define I2C_READ    1
00013 
00015 #define I2C_WRITE   0
00016 
00017 
00023 extern void i2c_init(void);
00024 
00025 
00031 extern void i2c_stop(void);
00032 
00033 
00041 extern unsigned char i2c_start(unsigned char addr);
00042 
00043 
00051 extern unsigned char i2c_rep_start(unsigned char addr);
00052 
00053 
00061 extern void i2c_start_wait(unsigned char addr);
00062 
00063  
00070 extern unsigned char i2c_write(unsigned char data);
00071 
00072 
00077 extern unsigned char i2c_readAck(void);
00078 
00083 extern unsigned char i2c_readNak(void);
00084 
00094 extern unsigned char i2c_read(unsigned char ack);
00095 #define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak(); 
00096 
00097 #endif
00098 

Erzeugt am Thu Oct 18 23:22:12 2007 für nDisply von  doxygen 1.5.1-p1