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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_EVTOUT0switchEmacCfg1->linkIntNum=58; //PRU_ICSS1_EVTOUT6SOCCtrlGetPortMacAddr(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_EVTOUT1switchEmacCfg2->linkIntNum=59; //PRU_ICSS1_EVTOUT7SOCCtrlGetPortMacAddr(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？
user5885945：
回复 Annie Liu:
感谢您的回复。我已经将问题转到E2E英文技术论坛上，虽然专家没有直接帮我解决问题，但还是提供了一些思路。
最终问题在于BIOS.HeapSize设置问题，放大后工作正常。
yongqing wang：
回复 user5885945:
感谢分享方法
