54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
#ifndef __SWM341_I2C_H__
|
||
#define __SWM341_I2C_H__
|
||
|
||
|
||
typedef struct {
|
||
uint8_t Master; //1 主机模式 0 从机模式
|
||
uint32_t MstClk; //主机传输时钟频率
|
||
|
||
uint8_t Addr10b; //1 10位地址模式 0 7位地址模式
|
||
uint16_t SlvAddr; //从机地址
|
||
uint16_t SlvAddrMsk;
|
||
|
||
uint8_t TXEmptyIEn; //发送寄存器空中断使能
|
||
uint8_t RXNotEmptyIEn; //接收寄存器非空中断使能
|
||
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
|
||
} I2C_InitStructure;
|
||
|
||
|
||
/* Interrupt Type */
|
||
#define I2C_IT_TX_EMPTY (1 << 0) //TX FIFO Empty
|
||
#define I2C_IT_RX_NOT_EMPTY (1 << 1) //RX FIFO Not Empty
|
||
#define I2C_IT_RX_OVF (1 << 2) //RX FIFO Overflow
|
||
#define I2C_IT_TX_DONE (1 << 3) //发送完成（接收到ACK）
|
||
#define I2C_IT_RX_DONE (1 << 4) //接收完成（发送出ACK）
|
||
#define I2C_IT_SLV_DET_STA (1 << 8) //从机检测到起始位
|
||
#define I2C_IT_SLV_DET_STP (1 << 9) //从机检测到停止位
|
||
#define I2C_IT_ARB_LOST (1 << 16) //主机Arbitration lost
|
||
#define I2C_IT_SCL_LOW_TO (1 << 17) //主机SCL Low Timeout
|
||
|
||
|
||
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, uint8_t wait);
|
||
void I2C_Stop(I2C_TypeDef * I2Cx, uint8_t wait);
|
||
uint8_t I2C_Write(I2C_TypeDef * I2Cx, uint8_t data, uint8_t wait);
|
||
uint8_t I2C_Read(I2C_TypeDef * I2Cx, uint8_t ack, uint8_t wait);
|
||
|
||
uint8_t I2C_StartDone(I2C_TypeDef * I2Cx);
|
||
uint8_t I2C_StopDone(I2C_TypeDef * I2Cx);
|
||
uint8_t I2C_WriteDone(I2C_TypeDef * I2Cx);
|
||
uint8_t I2C_ReadDone(I2C_TypeDef * I2Cx);
|
||
uint8_t I2C_IsAck(I2C_TypeDef * I2Cx);
|
||
|
||
void I2C_INTEn(I2C_TypeDef * I2Cx, uint32_t it); //中断使能
|
||
void I2C_INTDis(I2C_TypeDef * I2Cx, uint32_t it); //中断禁止
|
||
void I2C_INTClr(I2C_TypeDef * I2Cx, uint32_t it); //中断标志清除
|
||
uint32_t I2C_INTStat(I2C_TypeDef * I2Cx, uint32_t it); //中断状态查询
|
||
|
||
#endif //__SWM341_I2C_H__
|