lwip 不能够开启自协商模式？？

hpdell · 发表于 2017-12-5 11:12:24

lwip 不能够开启自协商模式？？

static void low_level_init(struct netif *netif)
{
  uint32_t regvalue = 0;
  HAL_StatusTypeDef hal_eth_init_status;

  heth.Instance = ETH;

  heth.Init.AutoNegotiation = ETH_AUTONEGOTIATION_DISABLE; // 这个地方不知道为什么，我开启自商协议后，貌似就不行了，如果设置为禁止选项的话就可以，哪位大神看看是怎么回事啊？？
  heth.Init.Speed = ETH_SPEED_100M;                                           //速度100M,如果开启了自协商模式，此配置就无效
  heth.Init.DuplexMode = ETH_MODE_FULLDUPLEX;                         //全双工模式，如果开启了自协商模式，此配置就无效

  heth.Init.PhyAddress = LAN8742A_PHY_ADDRESS;

  heth.Init.MACAddr =  &lwipdev.mac[0];                      // 这个mac地址已经在其他地方设置好的
  heth.Init.RxMode = ETH_RXINTERRUPT_MODE;          //中断接收模式
  heth.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE; //硬件帧校验
  heth.Init.MediaInterface = ETH_MEDIA_INTERFACE_RMII;    //RMII接口

  /* USER CODE BEGIN MACADDRESS */

  /* USER CODE END MACADDRESS */

  hal_eth_init_status = HAL_ETH_Init(&heth);

  if (hal_eth_init_status == HAL_OK)
  {
/* Set netif link flag */
netif->flags |= NETIF_FLAG_LINK_UP;
  }
  /* Initialize Tx Descriptors list: Chain Mode */
  HAL_ETH_DMATxDescListInit(&heth, DMATxDscrTab, Tx_Buff, ETH_TXBUFNB);

  /* Initialize Rx Descriptors list: Chain Mode  */
  HAL_ETH_DMARxDescListInit(&heth, DMARxDscrTab, Rx_Buff, ETH_RXBUFNB);

#if LWIP_ARP || LWIP_ETHERNET

  /* set MAC hardware address length */
  netif->hwaddr_len = ETH_HWADDR_LEN;

  //初始化MAC地址,设置什么地址由用户自己设置,但是不能与网络中其他设备MAC地址重复
  netif->hwaddr[0] =  heth.Init.MACAddr[0];
  netif->hwaddr[1] =  heth.Init.MACAddr[1];
  netif->hwaddr[2] =  heth.Init.MACAddr[2];
  netif->hwaddr[3] =  heth.Init.MACAddr[3];
  netif->hwaddr[4] =  heth.Init.MACAddr[4];
  netif->hwaddr[5] =  heth.Init.MACAddr[5];

  /* maximum transfer unit */
  netif->mtu = 1500;//最大允许传输单元,允许该网卡广播和ARP功能

  /* Accept broadcast address and ARP traffic */

  netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;

/* create a binary semaphore used for informing ethernetif of frame reception */
  osSemaphoreDef(SEM); // 定义os_semaphore_def_##name 结构体
  s_xSemaphore = osSemaphoreCreate(osSemaphore(SEM) , 1 ); ////创建信号量

/* create the task that handles the ETH_MAC */
  osThreadDef(EthIf, ethernetif_input, osPriorityRealtime, 0, INTERFACE_THREAD_STACK_SIZE);
  osThreadCreate (osThread(EthIf), netif);
  /* Enable MAC and DMA transmission and reception */
  HAL_ETH_Start(&heth);

  /* Read Register Configuration */
  HAL_ETH_ReadPHYRegister(&heth, PHY_ISFR, &regvalue);
  regvalue |= (PHY_ISFR_INT4);

  /* Enable Interrupt on change of link status */
  HAL_ETH_WritePHYRegister(&heth, PHY_ISFR , regvalue );

  /* Read Register Configuration */
  HAL_ETH_ReadPHYRegister(&heth, PHY_ISFR , &regvalue);

#endif /* LWIP_ARP || LWIP_ETHERNET */

}