已解决，调试这个一定要注意SPI的时序，这个模块的CLK空闲时电平，第2个跳变沿读写数据，一定要注意这点。所以要注意SPI的极性为高，相位为2。还有使用HAL库时，注意程序的编写，以下是我的读写程序。
static unsigned char SPI_WriteReadbyte(unsigned char write_data)
{
unsigned char read_data;
if(HAL_SPI_TransmitReceive(&hspi1,&write_data,&read_data,1,0xffff)!=HAL_OK)
{
return 0;
}
return read_data;
}
static void _spi_io_buffer(uint8_t* write, uint8_t* read, uint16_t len)
{
uint8_t recv=0,dummy=0;
uint32_t i=0;
SetWifiCSOnOff(0);
if(read == NULL)
{
for(i=0;i<len;i++)
{
if(write == NULL)
{
recv=SPI_WriteReadbyte(dummy);
}
else
{
recv=SPI_WriteReadbyte(write[i]);
}
// DPRINTF("send=%x ",write[i]);
// DPRINTF("recv dummy=%x\r\n",dummy);
}
}
else
{
for(i=0;i<len;i++)
{
if(write == NULL)
{
read[i]=SPI_WriteReadbyte(dummy);
// DPRINTF("send dummy=%x ",dummy);
}
else
{
read[i]=SPI_WriteReadbyte(write[i]);
// DPRINTF("send=%x ",write[i]);
}
}
}
SetWifiCSOnOff(1);
}
