PIC24F和spi flash通信

有没有人做过PIC和w25q64的通信，我SCK和SDI波形正确，但是没有波形输出

好好查查slave对命令信号的格式要求和时序要求

你看看IO口的初始化嘛...如果是模拟复用口, 要初始化成数字口的哈.

已经确认过IO是数字口，而且时序也满足slave的要求了，slave就是没有输出

int main(void)
{
    // initialize the device
    uint8_t temp0,temp1,temp2=0;
    SYSTEM_Initialize();
    _TRISF0 = 0;
    _LATF0 = 1;

   
    while (1)
    {
        SPI1_Exchange8bit(0x9F);
        temp0 = SPI1_Exchange8bit(0xFF);
        temp1 = SPI1_Exchange8bit(0xFF);
        temp2 = SPI1_Exchange8bit(0xFF);

        printf("%x, %x, %x,",temp0,temp1,temp2);
        DELAY_milliseconds(2000);
    }

    return 1;
}

void SPI1_Initialize (void)
{
    // MSTEN Master; DISSDO disabled; PPRE 4:1; SPRE 4:1; MODE16 disabled; SMP Middle; DISSCK disabled; CKP Idle:Low, Active:High; CKE Active to Idle; SSEN disabled;
    SPI1CON1 = 0x132;
    // SPIFSD disabled; SPIBEN enabled; SPIFPOL disabled; SPIFE disabled; FRMEN disabled;
    SPI1CON2 = 0x01;
    // SPITBF disabled; SISEL SPI_INT_SPIRBF; SPIRBF disabled; SPIROV disabled; SPIEN enabled; SRXMPT disabled; SPISIDL disabled;
    SPI1STAT = 0x800C;
}
void SPI1_Exchange( uint8_t *pTransmitData, uint8_t *pReceiveData )
{

    while( SPI1STATbits.SPITBF == true )
    {

    }

    SPI1BUF = *((uint8_t*)pTransmitData);

    while ( SPI1STATbits.SRXMPT == true);

    *((uint8_t*)pReceiveData) = SPI1BUF;
   
}
uint8_t SPI1_Exchange8bit( uint8_t data )
{
    uint8_t receiveData;
   
    SPI1_Exchange(&data, &receiveData);

    return (receiveData);
}

那就是操作时序和命令不对