76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
#ifndef __SWM320_SPI_H__
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#define __SWM320_SPI_H__
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typedef struct
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{
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uint8_t FrameFormat; //帧格式：SPI_FORMAT_SPI、SPI_FORMAT_TI_SSI
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uint8_t SampleEdge; //在SPI帧格式下，选择数据采样边沿：SPI_FIRST_EDGE、SPI_SECOND_EDGE
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uint8_t IdleLevel; //在SPI帧格式下，选择空闲时（无数据传输时）时钟线的电平：SPI_LOW_LEVEL、SPI_HIGH_LEVEL
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uint8_t WordSize; //字长度, 有效值4-16
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uint8_t Master; //1 主机模式 0 从机模式
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uint8_t clkDiv; //SPI_CLK = SYS_CLK / clkDiv，有效值：SPI_CLKDIV_4、SPI_CLKDIV_8、... ... 、SPI_CLKDIV_512
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uint8_t RXHFullIEn; //接收FIFO半满中断使能
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uint8_t TXEmptyIEn; //发送FIFO 空中断使能
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uint8_t TXCompleteIEn; //发送FIFO 空且发送移位寄存器空中断使能
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} SPI_InitStructure;
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#define SPI_FORMAT_SPI 0 //Motorola SPI 格式
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#define SPI_FORMAT_TI_SSI 1 //TI SSI 格式
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#define SPI_FIRST_EDGE 0 //第一个时钟沿开始采样
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#define SPI_SECOND_EDGE 1 //第二个时钟沿开始采样
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#define SPI_LOW_LEVEL 0 //空闲时时钟线保持低电平
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#define SPI_HIGH_LEVEL 1 //空闲时时钟线保持高电平
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#define SPI_CLKDIV_4 0
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#define SPI_CLKDIV_8 1
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#define SPI_CLKDIV_16 2
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#define SPI_CLKDIV_32 3
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#define SPI_CLKDIV_64 4
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#define SPI_CLKDIV_128 5
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#define SPI_CLKDIV_256 6
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#define SPI_CLKDIV_512 7
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void SPI_Init(SPI_TypeDef *SPIx, SPI_InitStructure *initStruct); //SPI初始化
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void SPI_Open(SPI_TypeDef *SPIx); //SPI打开，允许收发
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void SPI_Close(SPI_TypeDef *SPIx); //SPI关闭，禁止收发
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uint32_t SPI_Read(SPI_TypeDef *SPIx);
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void SPI_Write(SPI_TypeDef *SPIx, uint32_t data);
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void SPI_WriteWithWait(SPI_TypeDef *SPIx, uint32_t data);
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uint32_t SPI_ReadWrite(SPI_TypeDef *SPIx, uint32_t data);
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uint32_t SPI_IsRXEmpty(SPI_TypeDef *SPIx); //接收FIFO是否空，如果不空则可以继续SPI_Read()
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uint32_t SPI_IsTXFull(SPI_TypeDef *SPIx); //发送FIFO是否满，如果不满则可以继续SPI_Write()
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uint32_t SPI_IsTXEmpty(SPI_TypeDef *SPIx); //发送FIFO是否空
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void SPI_INTRXHalfFullEn(SPI_TypeDef *SPIx);
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void SPI_INTRXHalfFullDis(SPI_TypeDef *SPIx);
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uint32_t SPI_INTRXHalfFullStat(SPI_TypeDef *SPIx);
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void SPI_INTRXFullEn(SPI_TypeDef *SPIx);
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void SPI_INTRXFullDis(SPI_TypeDef *SPIx);
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uint32_t SPI_INTRXFullStat(SPI_TypeDef *SPIx);
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void SPI_INTRXOverflowEn(SPI_TypeDef *SPIx);
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void SPI_INTRXOverflowDis(SPI_TypeDef *SPIx);
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void SPI_INTRXOverflowClr(SPI_TypeDef *SPIx);
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uint32_t SPI_INTRXOverflowStat(SPI_TypeDef *SPIx);
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void SPI_INTTXHalfFullEn(SPI_TypeDef *SPIx);
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void SPI_INTTXHalfFullDis(SPI_TypeDef *SPIx);
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uint32_t SPI_INTTXHalfFullStat(SPI_TypeDef *SPIx);
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void SPI_INTTXEmptyEn(SPI_TypeDef *SPIx);
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void SPI_INTTXEmptyDis(SPI_TypeDef *SPIx);
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uint32_t SPI_INTTXEmptyStat(SPI_TypeDef *SPIx);
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void SPI_INTTXCompleteEn(SPI_TypeDef *SPIx);
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void SPI_INTTXCompleteDis(SPI_TypeDef *SPIx);
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void SPI_INTTXCompleteClr(SPI_TypeDef *SPIx);
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uint32_t SPI_INTTXCompleteStat(SPI_TypeDef *SPIx);
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#endif //__SWM320_SPI_H__
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