ETH_DeInit();/*Software reset*/ETH_SoftwareReset();/*Wait for software reset*/

while (ETH_GetSoftwareResetStatus() ==SET);/*ETHERNET Configuration---------------------------------------------*/

/*Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter*/ETH_StructInit(&ETH_InitStructure);/*Fill ETH_InitStructure parametrs*/

/*------------------------ ETH_MACCR-----------------------------------*/

//参数是否自动配置，选择disable需要自动配置默认参数

ETH_InitStructure.ETH_AutoNegotiation =ETH_AutoNegotiation_Disable;

ETH_InitStructure.ETH_Watchdog= ETH_Watchdog_Disable; //关闭看门狗定时器，允许接收超长帧

ETH_InitStructure.ETH_Jabber = ETH_Jabber_Disable; //关闭jabber定时器，允许发送超长帧

ETH_InitStructure.ETH_InterFrameGap = ETH_InterFrameGap_40Bit; 　　　　　　//发送帧间间隙

ETH_InitStructure.ETH_Speed = ETH_Speed_100M; //快速以太网速度

ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable; //不启用自循环模式

ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex; //全双工模式

/*自动填充/CRC剥离处理不执行，转发所有帧*/ETH_InitStructure.ETH_AutomaticPadCRCStrip=ETH_AutomaticPadCRCStrip_Disable;#if CHECKSUM_BY_HARDWAREETH_InitStructure.ETH_ChecksumOffload= ETH_ChecksumOffload_Enable; 　　　　　　　　　　　　　　 //IPV4头文件硬件校验

#endif

/*------------------------ ETH_MACFFR----------------------------------*/ETH_InitStructure.ETH_ReceiveAll= ETH_ReceiveAll_Disable; //MAC过滤只接受通过源目的地址的数据

ETH_InitStructure.ETH_SourceAddrFilter = ETH_SourceAddrFilter_Normal_Enable; //MAC过滤源地址错误帧？

ETH_InitStructure.ETH_PassControlFrames = ETH_PassControlFrames_BlockAll; //MAC不转发任何控制帧

ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable; //接收广播帧

ETH_InitStructure.ETH_DestinationAddrFilter = ETH_DestinationAddrFilter_Normal; //目的地址过滤结果正常

ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable; //混杂模式，启用帧过滤

ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect; //过滤器正常工作，不传送控制帧

ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect; //单播帧目的地址完美过滤

/*------------------------ DMA ETH_DMAOMR -----------------------------------*/

/*When we use the Checksum offload feature, we need to enable the Store and Forward mode:

the store and forward guarantee that a whole frame is stored in the FIFO, so the MAC can insert/verify the checksum,

if the checksum is OK the DMA can handle the frame otherwise the frame is dropped*/

/*丢弃校验错误帧不执行(因为未进行硬件校验)*/ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame=ETH_DropTCPIPChecksumErrorFrame_Disable;

ETH_InitStructure.ETH_ReceiveStoreForward= ETH_ReceiveStoreForward_Disable; //接收数据超过阈值转发

ETH_InitStructure.ETH_FlushReceivedFrame = ETH_FlushReceivedFrame_Enable; //描述符被占用和接收FIFO不可用时清空FIFO(解决堵塞)

ETH_InitStructure.ETH_TransmitStoreForward = ETH_TransmitStoreForward_Disable; //发送数据完整帧转发

ETH_InitStructure.ETH_TransmitThresholdControl = ETH_TransmitThresholdControl_64Bytes; //发送阈值为64Bytes

ETH_InitStructure.ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Disable; //接收FIFO丢弃所有错误帧

/*接收FIFO上传长度不够的好帧*/ETH_InitStructure.ETH_ForwardUndersizedGoodFrames=ETH_ForwardUndersizedGoodFrames_Enable;

ETH_InitStructure.ETH_ReceiveThresholdControl= ETH_ReceiveThresholdControl_64Bytes; //接收阈值为64Bytes ETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Enable; //DMA直接发送第二个帧，不需要之前帧回复

/*------------------------ DMA ETH_DMABMR -----------------------------------*/ETH_InitStructure.ETH_AddressAlignedBeats= ETH_AddressAlignedBeats_Enable; //传输地址对齐

ETH_InitStructure.ETH_FixedBurst = ETH_FixedBurst_Enable; //固定的突发

ETH_InitStructure.ETH_RxDMABurstLength =ETH_RxDMABurstLength_32Beat;

ETH_InitStructure.ETH_TxDMABurstLength=ETH_TxDMABurstLength_32Beat;

ETH_InitStructure.ETH_DMAArbitration= ETH_DMAArbitration_RoundRobin_RxTx_2_1; //发送和接收比例 2:1

/*Configure Ethernet*/ETH_Init(&ETH_InitStructure, DP83848_PHY_ADDRESS);/*Enable the Ethernet Rx-Tx Interrupt*/ETH_DMAITConfig(ETH_DMA_IT_NIS | ETH_DMA_IT_R | ETH_DMA_IT_T

, ENABLE);