rt-thread/bsp/swm320/libraries/SWM320_StdPeriph_Driver/SWM320_i2c.h

#ifndef __SWM320_I2C_H__
#define __SWM320_I2C_H__

typedef struct
{
    uint8_t Master; //1 主机模式
    uint8_t Addr7b; //1 7位地址     0 10位地址

    uint32_t MstClk; //主机传输时钟频率
    uint8_t MstIEn;  //主机模式中断使能

    uint16_t SlvAddr;     //从机地址
    uint8_t SlvRxEndIEn;  //从机接收完成中断使能
    uint8_t SlvTxEndIEn;  //从机发送完成中断使能
    uint8_t SlvSTADetIEn; //从机检测到起始中断使能
    uint8_t SlvSTODetIEn; //从机检测到终止中断使能
    uint8_t SlvRdReqIEn;  //从机接收到读请求中断使能
    uint8_t SlvWrReqIEn;  //从机接收到写请求中断使能
} I2C_InitStructure;

void I2C_Init(I2C_TypeDef *I2Cx, I2C_InitStructure *initStruct);

void I2C_Open(I2C_TypeDef *I2Cx);
void I2C_Close(I2C_TypeDef *I2Cx);

uint8_t I2C_Start(I2C_TypeDef *I2Cx, uint8_t addr);
void I2C_Stop(I2C_TypeDef *I2Cx);
uint8_t I2C_Write(I2C_TypeDef *I2Cx, uint8_t data);
uint8_t I2C_Read(I2C_TypeDef *I2Cx, uint8_t ack);

#endif //__SWM320_I2C_H__