iic.h

来自「ucos v2.62 安装程序 附带已移植到C8051F020的UCOS源码」· C头文件 代码 · 共 15 行

/*******system  clock   8MHZ*******************/

#define GENERATE_STOP       0x54    //01010100 ENSMB = 1, STO =1,AA =1
#define RELEASE_BUS_ACK     0x44    //使能SMBUS，应答返回AA(低电平)01000100 AA=1
#define RELEASE_BUS_NACK    0x40    //01000000 AA = 0
#define RELEASE_BUS_STA     0x64   //01100100	STA = 1,AA = 1,

#define ONE_BYTE_SUBA      1
#define TWO_BYTE_SUBA      2
//#define X_ADD_8_SUBA       3



extern unsigned char SmbRec(unsigned char slaveAddr, unsigned char *subAddr,unsigned char subAddressType,unsigned char size, unsigned char *recPtr );
extern unsigned char SmbSend (unsigned char slaveAddr, unsigned char *subAddr, unsigned char subAddressType, unsigned char size, unsigned char *sendPtr);