TI专家好。

我有个项目需要同时用到AM437x的CPSW网口(千兆)和两个PRU-ICSS网口(100M，当做普通网口使用)，目前我已经根据NIMU_BasicExample和NIMU_ICSS_BasicExample两个例程合并修改，现已实现三个网口的配置和IP地址分配，每个网口单独均可ping通，但是现在有一个比较奇怪的现象，还请各位专家多多指教。

PRU-ICSS1网口配置代码如下

/*ICSS-EMAC Port 1 initializations*/

emacHandle1 = (ICSS_EmacHandle)malloc(sizeof(ICSS_EmacConfig));

switchEmacCfg1 = (ICSS_EmacInitConfig*)malloc(sizeof(ICSS_EmacInitConfig));

switchEmacCfg1->phyAddr[0]=0;

switchEmacCfg1->phyAddr[1]=0;

switchEmacCfg1->portMask = ICSS_EMAC_MODE_MAC1;

switchEmacCfg1->ethPrioQueue = ICSS_EMAC_QUEUE1;

switchEmacCfg1->halfDuplexEnable = 1;

switchEmacCfg1->enableIntrPacing = ICSS_EMAC_ENABLE_PACING;

switchEmacCfg1->ICSS_EmacIntrPacingMode = ICSS_EMAC_INTR_PACING_MODE1;

switchEmacCfg1->pacingThreshold = 100;

switchEmacCfg1->learningEn = 0;

switchEmacCfg1->rxIntNum = 52; //PRU_ICSS1_EVTOUT0

switchEmacCfg1->linkIntNum=58; //PRU_ICSS1_EVTOUT6

SOCCtrlGetPortMacAddr(1,MacAddr1); //获取MAC地址

switchEmacCfg1->macId = MacAddr1;

ICSSEmacDRVInit(emacHandle1, 1);

((ICSS_EmacObject*)emacHandle1->object)->pruIcssHandle = pruIcssHandle;

((ICSS_EmacObject*)emacHandle1->object)->emacInitcfg = switchEmacCfg1;

//中断及EMAC模式配置

PRUICSS_IntcInitData pruss_intc_initdata = PRUSS_INTC_INITDATA;

ICSS_EmacInit(emacHandle1,&pruss_intc_initdata,ICSS_EMAC_MODE_MAC1|ICSS_EMAC_MODE_DUALMAC);

//创建Rx接收事件

Task_Params taskParams;

Task_Params_init(&taskParams);

taskParams.priority = 10;

taskParams.instance->name = (char*)"port1_rxTaskFnc";

taskParams.stackSize = 0x1000;

taskParams.arg0 = (UArg)emacHandle1;

((ICSS_EmacObject*)emacHandle1->object)->rxTaskHandle = Task_create(ICSS_EMacOsRxTaskFnc, &taskParams, NULL);

PRU-ICSS2网口配置代码如下：

/*ICSS-EMAC PORT2 Initializations*/

emacHandle2 = (ICSS_EmacHandle)malloc(sizeof(ICSS_EmacConfig));

switchEmacCfg2 = (ICSS_EmacInitConfig*)malloc(sizeof(ICSS_EmacInitConfig));

switchEmacCfg2->phyAddr[0]= 1;

switchEmacCfg2->phyAddr[1]= 0;

switchEmacCfg2->portMask = ICSS_EMAC_MODE_MAC2;

switchEmacCfg2->ethPrioQueue = ICSS_EMAC_QUEUE3;

switchEmacCfg2->halfDuplexEnable = 1;

switchEmacCfg2->enableIntrPacing = ICSS_EMAC_DISABLE_PACING;

switchEmacCfg2->pacingThreshold = 100;

switchEmacCfg2->learningEn = 0;

switchEmacCfg2->rxIntNum = 53; //PRU_ICSS1_EVTOUT1

switchEmacCfg2->linkIntNum=59; //PRU_ICSS1_EVTOUT7

SOCCtrlGetPortMacAddr(2,MacAddr2); //获取MAC地址

switchEmacCfg2->macId = MacAddr2;

ICSSEmacDRVInit(emacHandle2,1);

((ICSS_EmacObject*)emacHandle2->object)->pruIcssHandle = pruIcssHandle;

((ICSS_EmacObject*)emacHandle2->object)->emacInitcfg = switchEmacCfg2;

//中断及EMAC模式配置

PRUICSS_IntcInitData pruss_intc_initdata = PRUSS_INTC_INITDATA;

ICSS_EmacInit(emacHandle2,&pruss_intc_initdata,ICSS_EMAC_MODE_MAC2|ICSS_EMAC_MODE_DUALMAC);

//创建Rx接收事件

Task_Params taskParams;

Task_Params_init(&taskParams);

taskParams.priority = 10;

taskParams.instance->name = (char*)"port2_rxTaskFnc";

taskParams.stackSize = 0x1000;

taskParams.arg0 = (UArg)emacHandle2;

((ICSS_EmacObject*)emacHandle2->object)->rxTaskHandle = Task_create(ICSS_EMacOsRxTaskFnc, &taskParams, NULL);

三个网口与NIMUDeviceTable对应关系如下：

//设置NIMUDeviceTable入口

OSDRV_addNetifEntry((NIMUInitFn)&EmacInit,emacHandle1);   //PRU-ETH0

OSDRV_addNetifEntry((NIMUInitFn)&EmacInit,emacHandle2);  //PRU-ETH1

OSDRV_addNetifEntry((NIMUInitFn)&CpswEmacInit,0);  //CPSW

//TCP

void netOpenHook()

{

// Create our local servers

hEcho = DaemonNew( SOCK_STREAMNC, 0, 502, dtask_tcp_echo,

OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );

}

问题在于：上述配置完成后，虽然可以ping通，但无法进行TCP通讯，dtask_tcp_echo无任何响应。如果将CPSW入口删除则dtask_tcp_echo执行正常，单独运行NIMU_BasicExample例程也没有问题。

还请TI各位专家帮忙解答，问题出在哪里？应如何查找？

本文链接：https://my.lmcjl.com/post/6142.html