STM32中ETH驅(qū)動配置注意事項

ETH_DeInit();/* Software reset */ETH_SoftwareReset();/* Wait for software reset */while (ETH_GetSoftwareResetStatus() == SET);/* ETHERNET Configuration*//* Call ETH_StructInit if you dont like to configure all ETH_InitStructure parameter */ETH_StructInit(Ð_InitStructure);/* Fill ETH_InitStructure parametrs *//* ETH_MACCR--*///參數(shù)是否自動配置，選擇disable需要自動配置默寫參數(shù)　ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Disable;ETH_InitStructure.ETH_Watchdog = ETH_Watchdog_Disable;                            //關(guān)閉看門狗定時器，允許接收超長幀ETH_InitStructure.ETH_Jabber = ETH_Jabber_Disable;                                //關(guān)閉jabber定時器，允許發(fā)送超長幀ETH_InitStructure.ETH_InterFrameGap = ETH_InterFrameGap_40Bit;          　　　　　　//發(fā)送幀間間隙ETH_InitStructure.ETH_Speed = ETH_Speed_100M;                                     //快速以太網(wǎng)速度ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;                    //不啟用自循環(huán)模式ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;                                 //全雙工模式/*自動填充/CRC剝離處理不執(zhí)行，轉(zhuǎn)發(fā)所有幀*/ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;   #if CHECKSUM_BY_HARDWARE　ETH_InitStructure.ETH_ChecksumOffload = ETH_ChecksumOffload_Enable; 　　　　　　　　　　　　　　 //IPV4頭文件硬件校驗#endif/* ETH_MACFFR-*/　ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Disable;                                   //MAC過濾只接受通過源目的地址的數(shù)據(jù)ETH_InitStructure.ETH_SourceAddrFilter = ETH_SourceAddrFilter_Normal_Enable;                 //MAC過濾源地址錯誤幀？ETH_InitStructure.ETH_PassControlFrames = ETH_PassControlFrames_BlockAll;                    //MAC不轉(zhuǎn)發(fā)任何控制幀ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable;        //接收廣播幀ETH_InitStructure.ETH_DestinationAddrFilter = ETH_DestinationAddrFilter_Normal;              //目的地址過濾結(jié)果正常ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;                         //混雜模式，啟用幀過濾ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;             //過濾器正常工作，不傳送控制幀ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;                 //單播幀目的地址完美過濾/*   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 *//*丟棄校驗錯誤幀不執(zhí)行(因為未進(jìn)行硬件校驗)*/ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Disable;ETH_InitStructure.ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Disable;              //接收數(shù)據(jù)超過閾值轉(zhuǎn)發(fā)ETH_InitStructure.ETH_FlushReceivedFrame = ETH_FlushReceivedFrame_Enable;                 //描述符被占用和接收FIFO不可用時清空FIFO(解決堵塞)ETH_InitStructure.ETH_TransmitStoreForward = ETH_TransmitStoreForward_Disable;            //發(fā)送數(shù)據(jù)完整幀轉(zhuǎn)發(fā)ETH_InitStructure.ETH_TransmitThresholdControl = ETH_TransmitThresholdControl_64Bytes;    //發(fā)送閾值為64BytesETH_InitStructure.ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Disable;                //接收FIFO丟棄所有錯誤幀/*接收FIFO上傳長度不夠的好幀*/　　ETH_InitStructure.ETH_ForwardUndersizedGoodFrames = ETH_ForwardUndersizedGoodFrames_Enable;  　　ETH_InitStructure.ETH_ReceiveThresholdControl = ETH_ReceiveThresholdControl_64Bytes;       //接收閾值為64BytesETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Enable;                  //DMA直接發(fā)送第二個幀，不需要之前幀/*   DMA  ETH_DMABMR --*/      ETH_InitStructure.ETH_AddressAlignedBeats = ETH_AddressAlignedBeats_Enable;                //傳輸?shù)刂穼RETH_InitStructure.ETH_FixedBurst = ETH_FixedBurst_Enable;                                  //固定的突發(fā)ETH_InitStructure.ETH_RxDMABurstLength = ETH_RxDMABurstLength_32Beat;                              ETH_InitStructure.ETH_TxDMABurstLength = ETH_TxDMABurstLength_32Beat;ETH_InitStructure.ETH_DMAArbitration = ETH_DMAArbitration_RoundRobin_RxTx_2_1;             //發(fā)送和接收比例(上傳數(shù)據(jù)時重要) 2:1/* Configure Ethernet */ETH_Init(Ð_InitStructure, DP83848_PHY_ADDRESS);/* Enable the Ethernet Rx Interrupt  僅開啟接收中斷*/ETH_DMAITConfig(ETH_DMA_IT_NIS  ETH_DMA_IT_R, ENABLE);