132lll 发表于 2022-9-2 11:16

SST26VF064B的状态寄存器读取

兄弟们,读取flash的JEDEC_ID能够正确发挥0xBF2643,但读取状态寄存器一直返回0xFF。
求助!!!!!!!!!
下面附代码:
static uint8_t Flash_TransferReceiveByte(IN uint8_t TxData)
{
    uint16_t spiTxData = (uint16_t)TxData;
    uint16_t spiRxData;

    spiTransmitAndReceiveData(spiREG4, &g_spi4Config, 1, &spiTxData, &spiRxData);

    return (uint8_t)spiRxData;
}


uint32_t Flash_GetJEDEC_ID(void){
    uint32_t ID1, ID2, ID3, ID;
    CS_ENABLE();
    Flash_TransferReceiveByte(JEDEC_ID);
    ID1 = Flash_TransferReceiveByte(DUMMY);
    ID2 = Flash_TransferReceiveByte(DUMMY);
    ID3 = Flash_TransferReceiveByte(DUMMY);
    CS_DISABLE();
    ID=((ID1<<16)|(ID2<<8)|ID3);
    return ID;
}


uint8_t Flash_ReadStaReg(void){
    uint8_t StaReg;
    CS_ENABLE();
    Flash_TransferReceiveByte(RDSR);
    Flash_TransferReceiveByte(RDSR);
    StaReg = Flash_TransferReceiveByte(DUMMY);
    CS_DISABLE();
    return StaReg;
}

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