CH32V307以太网MAC层数据包收发速度测试

/*********************************************************************

 * @fn      ETH_Start

 *

 * @brief   Enables ENET MAC and DMA reception/transmission.

 *

 * @return  none

 */

void ETH_Start(void)

{

    ETH_MACTransmissionCmd(ENABLE);

    ETH_FlushTransmitFIFO();

    ETH_MACReceptionCmd(ENABLE);

    ETH_DMATransmissionCmd(ENABLE);

    ETH_DMAReceptionCmd(ENABLE);

}

/*********************************************************************

 * @fn      ETH_Init

 *

 * @brief   Ethernet initialization.

 *

 * @return  none

 */

void ETH_Init( uint8_t *macAddr )

{

    ChipId = DBGMCU_GetCHIPID();

    ETH_Configuration( macAddr );

    ETH_DMATxDescChainInit(DMATxDscrTab, MACTxBuf, ETH_TXBUFNB);

    ETH_DMARxDescChainInit(DMARxDscrTab, MACRxBuf, ETH_RXBUFNB);

    pDMARxSet = DMARxDscrTab;

    pDMATxSet = DMATxDscrTab;

    NVIC_EnableIRQ(ETH_IRQn);

    NVIC_SetPriority(ETH_IRQn, 0);

}

/*********************************************************************

 * @fn      ETH_Configuration

 *

 * @brief   Ethernet configure.

 *

 * @return  none

 */

void ETH_Configuration( uint8_t *macAddr )

{

    ETH_InitTypeDef ETH_InitStructure;

    uint16_t timeout = 10000;



    /* Enable Ethernet MAC clock */

    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ETH_MAC | \

                          RCC_AHBPeriph_ETH_MAC_Tx | \

                          RCC_AHBPeriph_ETH_MAC_Rx, ENABLE);



    gPHYAddress = PHY_ADDRESS;



    /* Enable 1G MAC*/

    EXTEN->EXTEN_CTR |= EXTEN_ETH_RGMII_SEL;

    RCC_ETH1GCLKConfig(RCC_ETH1GCLKSource_PB1_IN);

    RCC_ETH1G_125Mcmd(ENABLE);

    /* Enable RGMII GPIO */

    ETH_RGMIIPinInit();



    /* Reset ETHERNET on AHB Bus */

    ETH_DeInit();



    /* Software reset */

    ETH_SoftwareReset();



    /* Wait for software reset */

    do{

        Delay_Us(10);

        if( !--timeout )  break;

    }while(ETH->DMABMR & ETH_DMABMR_SR);



    /* ETHERNET Configuration */

    /* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */

    ETH_StructInit(Ð_InitStructure);

    /* Fill ETH_InitStructure parameters */

    /*------------------------   MAC   -----------------------------------*/

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

    ETH_InitStructure.ETH_Speed = ETH_Speed_1000M;                                         //1000M模式

    ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable;                    //使能开启自动协商

    ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;                         //关闭自动循环模式

    ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;

    ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;         //填充&CRC 自动剥离使能位，配置MAC不改变帧的内容

    /* Filter function configuration */

    ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Disable;                             //MAC只把通过了过滤器的帧转发到接收队列中

    ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;                   //关闭混杂模式

    ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable;  //接收所有广播帧

    ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;       //多播过滤，完美地址过滤

    ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;           //单播过滤，完美地址过滤

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

    /* 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 */

    ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Enable;

    ETH_InitStructure.ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Enable;

    ETH_InitStructure.ETH_TransmitStoreForward = ETH_TransmitStoreForward_Enable;

    ETH_InitStructure.ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Enable;                        //转发错误帧控制位，接收FIFO会丢弃有错误的帧

    ETH_InitStructure.ETH_ForwardUndersizedGoodFrames = ETH_ForwardUndersizedGoodFrames_Enable;      //转发过短帧控制位，接收FIFO转发长度过短的帧

    ETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Disable;

    /* Configure Ethernet */

    ETH_RegInit( Ð_InitStructure, gPHYAddress );



    /* Configure MAC address */

    ETH->MACA0HR = (uint32_t)((macAddr[5]<<8) | macAddr[4]);

    ETH->MACA0LR = (uint32_t)(macAddr[0] | (macAddr[1]<<8) | (macAddr[2]<<16) | (macAddr[3]<<24));



    /* Mask the interrupt that Tx good frame count counter reaches half the maximum value */

    ETH->MMCTIMR = ETH_MMCTIMR_TGFM;

    /* Mask the interrupt that Rx good unicast frames counter reaches half the maximum value */

    /* Mask the interrupt that Rx crc error counter reaches half the maximum value */

    ETH->MMCRIMR = ETH_MMCRIMR_RGUFM | ETH_MMCRIMR_RFCEM;



    ETH_DMAITConfig(ETH_DMA_IT_NIS |\

                ETH_DMA_IT_R |\

                ETH_DMA_IT_T |\

                ETH_DMA_IT_AIS |\

                ETH_DMA_IT_RBU,\

                ENABLE);



    /* Configure the polarity and delay of TXC */

    RGMII_TXC_Delay(0, 4);

#if LINK_STAT_ACQUISITION_METHOD

    /* Configure the PHY interrupt function, the supported chip is: RTL8211FS */

    PHY_InterruptInit( );

    /* Configure EXTI Line7. */

    EXTI_Line_Init( );

#endif

}