KEIL中 C语言的结构体中能 声明函数指针么

魔幻空间

spi.h文件是

#ifndef __SPI_STX_H
#define __SPI_STX_H

//SPI-Ger鋞e
#define SPI_DEV_MOTION_CONTROLLER 0
#define SPI_DEV_MOTOR_DRIVER_0     1
#define SPI_DEV_MOTOR_DRIVER_1     2
#define SPI_DEV_MOTOR_DRIVER_2     3
#define SPI_DEV_BAD_DEVICE     -1

#include "derivative.h"

typedef struct
{
SPI_TypeDef *periphery;
IOPinTypeDef *CSN;
unsigned char (*readWrite) (unsigned char data, unsigned char lastTransfer);
void (*reset) (void);
} SPIChannelTypeDef;

typedef struct
{
SPIChannelTypeDef ch1;
SPIChannelTypeDef ch2;
void (*init) (void);
} SPITypeDef;

SPITypeDef SPI;
#endif

spi.c文件是
#include "../../HAL.h"
#include "../../SPI.h"

static void init(void);
static unsigned char readWrite(SPIChannelTypeDef *SPIChannel, unsigned char data, unsigned char lastTransfer);
static unsigned char readWrite_ch1(unsigned char data, unsigned char lastTransfer);
static unsigned char readWrite_ch2(unsigned char data, unsigned char lastTransfer);
static void reset_ch1();
static void reset_ch2();

static IOPinTypeDef IODummy = { .bitWeight = 3 };

SPITypeDef SPI=
{
.ch1 =
{
.periphery = SPI3,
.CSN = &IODummy,
.readWrite = readWrite_ch1,
.reset = reset_ch1
},

.ch2 =
{
.periphery = SPI2,
.CSN = &IODummy,
.readWrite = readWrite_ch2,
.reset = reset_ch2
},
.init = init
};


static void init(void)
{
  SPI_InitTypeDef SPIInit;

  //-------- SPI2 initialisieren und mit den Pins verbinden ---------
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);

  //SPI initialisieren
  SPIInit.SPI_Direction=SPI_Direction_2Lines_FullDuplex;
  SPIInit.SPI_Mode=SPI_Mode_Master;
  SPIInit.SPI_DataSize=SPI_DataSize_8b;
  SPIInit.SPI_CPOL=SPI_CPOL_High;
  SPIInit.SPI_CPHA=SPI_CPHA_2Edge;
  SPIInit.SPI_NSS=SPI_NSS_Soft;
  SPIInit.SPI_BaudRatePrescaler=SPI_BaudRatePrescaler_8;
  SPIInit.SPI_FirstBit=SPI_FirstBit_MSB;
  SPIInit.SPI_CRCPolynomial=0;
  SPI_Init(SPI2, &SPIInit);
  SPI_Cmd(SPI2, ENABLE);

  GPIO_PinAFConfig(GPIOB, GPIO_PinSource13, GPIO_AF_SPI2);
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_SPI2);
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_SPI2);

  //-------- SPI3 initialisieren und mit den Pins verbinden ---------
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);

  //SPI initialisieren
  SPIInit.SPI_Direction=SPI_Direction_2Lines_FullDuplex;
  SPIInit.SPI_Mode=SPI_Mode_Master;
  SPIInit.SPI_DataSize=SPI_DataSize_8b;
  SPIInit.SPI_CPOL=SPI_CPOL_High;
  SPIInit.SPI_CPHA=SPI_CPHA_2Edge;
  SPIInit.SPI_NSS=SPI_NSS_Soft;
  SPIInit.SPI_BaudRatePrescaler=SPI_BaudRatePrescaler_32;
  SPIInit.SPI_FirstBit=SPI_FirstBit_MSB;
  SPIInit.SPI_CRCPolynomial=0;
  SPI_Init(SPI3, &SPIInit);
  SPI_Cmd(SPI3, ENABLE);

  GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SPI3);
  GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SPI3);
  GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SPI3);

  reset_ch1();
  reset_ch2();
}

static void reset_ch1()
{
SPI.ch1.CSN = &IODummy;
SPI.ch1.periphery = SPI3;
SPI.ch1.readWrite = readWrite_ch1;
}

static void reset_ch2()
{
SPI.ch2.CSN = &IODummy;
SPI.ch2.periphery = SPI2;
SPI.ch2.readWrite = readWrite_ch2;
}

static unsigned char readWrite_ch1(unsigned char data, unsigned char lastTransfer)
{
return readWrite(&SPI.ch1, data, lastTransfer);
}

static unsigned char readWrite_ch2(unsigned char data, unsigned char lastTransfer)
{
return readWrite(&SPI.ch2, data,lastTransfer);
}
`
static unsigned char readWrite(SPIChannelTypeDef *SPIChannel, unsigned char data, unsigned char lastTransfer)
{
if(SPIChannel->CSN->bitWeight == 3) return 0;

HAL.IOs->config->setLow(SPIChannel->CSN);

while(SPI_I2S_GetFlagStatus(SPIChannel->periphery, SPI_I2S_FLAG_TXE)==RESET);
SPI_I2S_SendData(SPIChannel->periphery, data);
while(SPI_I2S_GetFlagStatus(SPIChannel->periphery, SPI_I2S_FLAG_RXNE)==RESET);
if(lastTransfer) HAL.IOs->config->setHigh(SPIChannel->CSN);
return SPI_I2S_ReceiveData(SPIChannel->periphery);
}

我在KEIL中 照着这种方式写 通不过呢

正点原子

是可以的。
但是你的赋值写法，估计i就不成了。

FantaSy_

自己找问题去。。。。