江科大SPI串行外设接口hal库实现

hal库相关函数

初始化结构体 

typedef struct
{uint32_t Mode;                /*SPI模式*/uint32_t Direction;           /*SPI方向*/uint32_t DataSize;            /*数据大小*/uint32_t CLKPolarity;         /*时钟默认极性控制CPOL*/uint32_t CLKPhase;            /*有效边延控制CPOA*/uint32_t NSS;                 /*外设选中*/uint32_t BaudRatePrescaler;   /*波特率分频*/uint32_t FirstBit;            /*设置先行位*/uint32_t TIMode;              /*仅当需要通过定时器触发SPI传输（如周期性发送数据）时启用，否则保持默认 DISABLE。*/uint32_t CRCCalculation;      /*CRC校验*/uint32_t CRCPolynomial;       /*循环冗余校验多项式*/
} SPI_InitTypeDef;

SPI句柄

typedef struct __SPI_HandleTypeDef
{SPI_TypeDef                *Instance;      /*SPI外设地址*/SPI_InitTypeDef            Init;           /*SPI初始化结构体*/const uint8_t              *pTxBuffPtr;    /*发送缓存区*/uint16_t                   TxXferSize;     /*发送数据大小 */__IO uint16_t              TxXferCount;    /*剩余发送数量*/uint8_t                    *pRxBuffPtr;    /*接收缓存区*/uint16_t                   RxXferSize;     /*接受数据大小*/__IO uint16_t              RxXferCount;    /*剩余接收量*/void (*RxISR)(struct __SPI_HandleTypeDef *hspi);   /*接收的中断服务函数*/void (*TxISR)(struct __SPI_HandleTypeDef *hspi);   /*发送的中断服务函数*/DMA_HandleTypeDef          *hdmatx;        /*SPI搭配DMA的发送部分*/DMA_HandleTypeDef          *hdmarx;        /*SPI搭配DMA的接受部分*/HAL_LockTypeDef            Lock;           /*配置锁存*/__IO HAL_SPI_StateTypeDef  State;          /*SPI通讯状态*/__IO uint32_t              ErrorCode;      /*SPI的错误状态*/#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)void (* TxCpltCallback)(struct __SPI_HandleTypeDef *hspi);             /*!< SPI Tx Completed callback          */void (* RxCpltCallback)(struct __SPI_HandleTypeDef *hspi);             /*!< SPI Rx Completed callback          */void (* TxRxCpltCallback)(struct __SPI_HandleTypeDef *hspi);           /*!< SPI TxRx Completed callback        */void (* TxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);         /*!< SPI Tx Half Completed callback     */void (* RxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);         /*!< SPI Rx Half Completed callback     */void (* TxRxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);       /*!< SPI TxRx Half Completed callback   */void (* ErrorCallback)(struct __SPI_HandleTypeDef *hspi);              /*!< SPI Error callback                 */void (* AbortCpltCallback)(struct __SPI_HandleTypeDef *hspi);          /*!< SPI Abort callback                 */void (* MspInitCallback)(struct __SPI_HandleTypeDef *hspi);            /*!< SPI Msp Init callback              */void (* MspDeInitCallback)(struct __SPI_HandleTypeDef *hspi);          /*!< SPI Msp DeInit callback            */#endif  /* USE_HAL_SPI_REGISTER_CALLBACKS */
} SPI_HandleTypeDef;

SPI初始化函数 

HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi);
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi);
void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi);

SPI收发相关函数

HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, const uint8_t *pTxData, uint8_t *pRxData,uint16_t Size);
HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi);
/* Transfer Abort functions */
HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi);

SPI发送接收，收发一体函数，以及DMA暂停恢复停止，SPI通讯中断

SPI读写W25Q64

按照江科大的配置来配置CubeMx

全双工主模式，数据宽度为8位，高位先行，波特率分频为128，CPOL为低，CPOA为1

NSS为软件触发（GPIO那边配置PA4为推完输出模式）

首先说一个通用的错误，我们得把数据的获取和处理，放在初始化函数后面... 

CubeMx生成的初始化结构注释太多是带点混乱的，注意这个问题即可。

主函数我们直接把江科大的cv过来即可，对于SPI.c这个文件，我们需要进行修改，把江科大的SPI相关函数全部修改成hal库版本的SPI函数.

通过对GPIO口的PA4进行操作来选择时序的开启和关闭。

void MySPI_Start(void)
{HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_RESET);//根据BitValue，设置SS引脚的电平//拉低SS，开始时序
}void MySPI_Stop(void)
{HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_SET);				//拉高SS，终止时序
}

void W25Q64_ReadID(uint8_t *MID, uint16_t *DID)
{uint8_t gid[3];uint8_t id = W25Q64_JEDEC_ID;MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,&id,1,1000);HAL_SPI_Receive(&hspi1,gid,3,1000);//一次性接收三位数据MySPI_Stop();								//SPI终止*MID = gid[0];	//交换接收MID，通过输出参数返回*DID = (gid[1] << 8) | gid[2];	//高8位移到高位,或上交换接收DID的低8位，通过输出参数返回}void W25Q64_ReadID(uint8_t *MID, uint16_t *DID)
{MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_JEDEC_ID);			//交换发送读取ID的指令*MID = MySPI_SwapByte(W25Q64_DUMMY_BYTE);	//交换接收MID，通过输出参数返回*DID = MySPI_SwapByte(W25Q64_DUMMY_BYTE);	//交换接收DID高8位*DID <<= 8;									//高8位移到高位*DID |= MySPI_SwapByte(W25Q64_DUMMY_BYTE);	//或上交换接收DID的低8位，通过输出参数返回MySPI_Stop();								//SPI终止
}

江科大的交换函数我们可以通过hal库自带的交换函数来实现

HAL_SPI_TransmitReceive()

或者说对于数据的收发，我们通过hal库的收发函数来进行。

其他的几个函数也是通过类似的手段进行修改即可。

void W25Q64_WriteEnable(void)
{uint8_t temp = W25Q64_WRITE_ENABLE;MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,&temp,1,1000);		//发送写使能的指令MySPI_Stop();								//SPI终止
}void W25Q64_WriteEnable(void)
{MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_WRITE_ENABLE);		//交换发送写使能的指令MySPI_Stop();								//SPI终止
}

void W25Q64_WaitBusy(void)
{uint32_t Timeout;uint8_t temp = W25Q64_READ_STATUS_REGISTER_1;MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,&temp,1,1000);				//交换发送读状态寄存器1的指令Timeout = 100000;							//给定超时计数时间HAL_SPI_Receive(&hspi1,&temp,1,1000);while ((temp & 0x01) == 0x01)	//循环等待忙标志位{HAL_SPI_Receive(&hspi1,&temp,1,1000);Timeout --;								//等待时，计数值自减if (Timeout == 0)						//自减到0后，等待超时{/*超时的错误处理代码，可以添加到此处*/break;								//跳出等待，不等了}}MySPI_Stop();								//SPI终止
}void W25Q64_WaitBusy(void)
{uint32_t Timeout;MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_READ_STATUS_REGISTER_1);				//交换发送读状态寄存器1的指令Timeout = 100000;							//给定超时计数时间while ((MySPI_SwapByte(W25Q64_DUMMY_BYTE) & 0x01) == 0x01)	//循环等待忙标志位{Timeout --;								//等待时，计数值自减if (Timeout == 0)						//自减到0后，等待超时{/*超时的错误处理代码，可以添加到此处*/break;								//跳出等待，不等了}}MySPI_Stop();								//SPI终止
}

void W25Q64_PageProgram(uint32_t Address, uint8_t *DataArray, uint16_t Count)
{uint8_t temp[4];temp[0] = W25Q64_PAGE_PROGRAM;temp[1] = (Address >> 16);temp[2] = (Address >> 8);temp[3] = (Address);W25Q64_WriteEnable();						//写使能MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,temp,4,1000);		//交换发送页编程的指令,交换发送地址23~16位,交换发送地址15~8位,交换发送地址7~0位HAL_SPI_Transmit(&hspi1,DataArray,Count,1000);//循环Count次,依次在起始地址后写入数据MySPI_Stop();								//SPI终止W25Q64_WaitBusy();							//等待忙
}void W25Q64_PageProgram(uint32_t Address, uint8_t *DataArray, uint16_t Count)
{uint16_t i;W25Q64_WriteEnable();						//写使能MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_PAGE_PROGRAM);		//交换发送页编程的指令MySPI_SwapByte(Address >> 16);				//交换发送地址23~16位MySPI_SwapByte(Address >> 8);				//交换发送地址15~8位MySPI_SwapByte(Address);					//交换发送地址7~0位for (i = 0; i < Count; i ++)				//循环Count次{MySPI_SwapByte(DataArray[i]);			//依次在起始地址后写入数据}MySPI_Stop();								//SPI终止W25Q64_WaitBusy();							//等待忙
}

void W25Q64_SectorErase(uint32_t Address)
{uint8_t temp[4];temp[0] = W25Q64_SECTOR_ERASE_4KB;temp[1] = (Address >> 16);temp[2] = (Address >> 8);temp[3] = (Address);W25Q64_WriteEnable();						//写使能MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,temp,4,1000);	//交换发送扇区擦除的指令MySPI_Stop();								//SPI终止W25Q64_WaitBusy();							//等待忙
}void W25Q64_SectorErase(uint32_t Address)
{W25Q64_WriteEnable();						//写使能MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_SECTOR_ERASE_4KB);	//交换发送扇区擦除的指令MySPI_SwapByte(Address >> 16);				//交换发送地址23~16位MySPI_SwapByte(Address >> 8);				//交换发送地址15~8位MySPI_SwapByte(Address);					//交换发送地址7~0位MySPI_Stop();								//SPI终止W25Q64_WaitBusy();							//等待忙
}

 

void W25Q64_ReadData(uint32_t Address, uint8_t *DataArray, uint32_t Count)
{uint8_t temp[4];temp[0] = W25Q64_READ_DATA;temp[1] = (Address >> 16);temp[2] = (Address >> 8);temp[3] = (Address);MySPI_Start();								//SPI起始HAL_SPI_Transmit(&hspi1,temp,4,1000);			//交换发送读取数据的指令HAL_SPI_Receive(&hspi1,DataArray,Count,1000);//循环Count次,依次在起始地址后读取数据MySPI_Stop();								//SPI终止
}void W25Q64_ReadData(uint32_t Address, uint8_t *DataArray, uint32_t Count)
{uint32_t i;MySPI_Start();								//SPI起始MySPI_SwapByte(W25Q64_READ_DATA);			//交换发送读取数据的指令MySPI_SwapByte(Address >> 16);				//交换发送地址23~16位MySPI_SwapByte(Address >> 8);				//交换发送地址15~8位MySPI_SwapByte(Address);					//交换发送地址7~0位for (i = 0; i < Count; i ++)				//循环Count次{DataArray[i] = MySPI_SwapByte(W25Q64_DUMMY_BYTE);	//依次在起始地址后读取数据}MySPI_Stop();								//SPI终止
}

修改Swap函数实现江科大 

或者说按照江科大的写法自己修改swap函数和nss即可

void MySPI_W_SS(uint8_t BitValue)
{HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, (GPIO_PinState)BitValue);		//根据BitValue，设置SS引脚的电平
}
/*** 函    数：SPI交换传输一个字节，使用SPI模式0* 参    数：ByteSend 要发送的一个字节* 返 回 值：接收的一个字节*/
uint8_t MySPI_SwapByte(uint8_t ByteSend)
{uint8_t tx,rx;tx = ByteSend;HAL_SPI_TransmitReceive(&hspi1,&tx,&rx,1,1000);return rx;
//	while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) != SET);	//等待发送数据寄存器空
//	
//	SPI_I2S_SendData(SPI1, ByteSend);								//写入数据到发送数据寄存器，开始产生时序
//	
//	while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) != SET);	//等待接收数据寄存器非空
//	
//	return SPI_I2S_ReceiveData(SPI1);								//读取接收到的数据并返回
}

 直接用hal库自带的交换函数来替换江科大的swap函数，在修改一下软件控制nss的GPIO函数就能完成移植，移植的时候别忘记头文件这些都得移植过来。