在stm32f207上怎么初始化spi2，我这里初始化后spi的ODR就是没有数据输出

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[mw_shl_code=applescript,true]void SPI_Configuration(void)
{
        SPI_InitTypeDef SPI_InitStruct;         
        GPIO_InitTypeDef GPIO_InitStructure;
       
        RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
       
        RCC_AHB1PeriphClockCmd(Open207Z_SPIx_SCK_GPIO_CLK | Open207Z_SPIx_MISO_GPIO_CLK | Open207Z_SPIx_MOSI_GPIO_CLK,ENABLE);
        #ifdef OpenSPI1
                RCC_APB2PeriphClockCmd(Open207Z_SPIx_CLK,ENABLE);
        #else
                RCC_APB1PeriphClockCmd(Open207Z_SPIx_CLK,ENABLE);
        #endif
       
        GPIO_PinAFConfig(Open207Z_SPIx_SCK_GPIO_PORT, Open207Z_SPIx_SCK_SOURCE,  Open207Z_SPIx_SCK_AF);
        GPIO_PinAFConfig(Open207Z_SPIx_MISO_GPIO_PORT, Open207Z_SPIx_MISO_SOURCE, Open207Z_SPIx_MISO_AF);
        GPIO_PinAFConfig(Open207Z_SPIx_MOSI_GPIO_PORT, Open207Z_SPIx_MOSI_SOURCE, Open207Z_SPIx_MOSI_AF);
       
        GPIO_InitStructure.GPIO_Pin = Open207Z_SPIx_SCK_PIN;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
        GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
        GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_DOWN;  
        GPIO_Init(Open207Z_SPIx_SCK_GPIO_PORT, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin = Open207Z_SPIx_MISO_PIN;
        GPIO_Init(Open207Z_SPIx_MISO_GPIO_PORT, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin = Open207Z_SPIx_MOSI_PIN;
        GPIO_Init(Open207Z_SPIx_MOSI_GPIO_PORT, &GPIO_InitStructure);

        SPI_I2S_DeInit(Open207Z_SPIx);
        SPI_InitStruct.SPI_Direction= SPI_Direction_2Lines_FullDuplex;
        SPI_InitStruct.SPI_DataSize = SPI_DataSize_8b;
        SPI_InitStruct.SPI_Mode = SPI_Mode_Master;
        SPI_InitStruct.SPI_CPOL = SPI_CPOL_Low ;
        SPI_InitStruct.SPI_CPHA = SPI_CPHA_1Edge;
        SPI_InitStruct.SPI_NSS = SPI_NSS_Soft ;
        SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_128;
        SPI_InitStruct.SPI_FirstBit = SPI_FirstBit_MSB;
        SPI_InitStruct.SPI_CRCPolynomial = 7;
        SPI_Init(Open207Z_SPIx, &SPI_InitStruct);

        SPI_Cmd(Open207Z_SPIx, ENABLE);

}

void SPIx_Send_byte(u16 data)
{
        while(SPI_I2S_GetFlagStatus(Open207Z_SPIx, SPI_I2S_FLAG_TXE)==RESET);
        SPI_I2S_SendData(Open207Z_SPIx,data);

        while(SPI_I2S_GetFlagStatus(Open207Z_SPIx, SPI_I2S_FLAG_RXNE)==RESET);
        SPI_I2S_ReceiveData(Open207Z_SPIx);
}

u16 SPIx_Receive_byte(void)
{
        while(SPI_I2S_GetFlagStatus(Open207Z_SPIx, SPI_I2S_FLAG_TXE)==RESET);
        SPI_I2S_SendData(Open207Z_SPIx,0x00);
       
        while(SPI_I2S_GetFlagStatus(Open207Z_SPIx, SPI_I2S_FLAG_RXNE)==RESET);
        return SPI_I2S_ReceiveData(Open207Z_SPIx);
}[/mw_shl_code]

正点原子

仿真调试找问题