23 lines
815 B
C
23 lines
815 B
C
|
#ifndef SWI2C_H
|
||
|
|
#define SWI2C_H
|
||
|
|
|
||
|
|
//initialize
|
||
|
|
extern void swi2c_init(unsigned char sda, unsigned char scl, unsigned char cfg);
|
||
|
|
|
||
|
|
//check device address acknowledge
|
||
|
|
extern int swi2c_check(unsigned char dev_addr);
|
||
|
|
|
||
|
|
//read write functions - 8bit address (most i2c chips)
|
||
|
|
#ifdef SWI2C_A8
|
||
|
|
extern int swi2c_readByte_A8(unsigned char dev_addr, unsigned char addr, unsigned char* pbyte);
|
||
|
|
extern int swi2c_writeByte_A8(unsigned char dev_addr, unsigned char addr, unsigned char* pbyte);
|
||
|
|
#endif //SWI2C_A8
|
||
|
|
|
||
|
|
//read write functions - 16bit address (e.g. serial eeprom AT24C256)
|
||
|
|
#ifdef SWI2C_A16
|
||
|
|
extern int swi2c_readByte_A16(unsigned char dev_addr, unsigned short addr, unsigned char* pbyte);
|
||
|
|
extern int swi2c_writeByte_A16(unsigned char dev_addr, unsigned short addr, unsigned char* pbyte);
|
||
|
|
#endif //SWI2C_A16
|
||
|
|
|
||
|
|
#endif //SWI2C_H
|