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LWIP 在调用 tcp_connect（） 时返回路由错误 （ err_t ERR_RTE） 一下是代码 /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_USART3_UART_Init(); Print("USART init ok\n"); MX_USB_OTG_FS_PCD_Init(); Print("USB pcd init ok\n"); MX_LWIP_Init(); Print("LWIP init ok\n"); /* USER CODE BEGIN 2 --------------------------------------------------------------------------------------------------------------------------------*/ struct tcp_pcb * tcp_client = {0}; tcp_client = tcp_new(); if(tcp_client != 0) { Print("tcp_new ok\n"); err_t error = {0}; error = tcp_bind(tcp_client, IP_ADDR_ANY); if(error == ERR_OK) { Print("tcp_bind ok\n"); err_t errorConnect = {0}; struct ip4_addr remoteIP; IP4_ADDR(&remoteIP, 192, 168, 127, 250); errorConnect = tcp_connect(tcp_client, &remoteIP, 4002, tcpConnect); if(errorConnect == ERR_OK) { Print("tcp_connect ok\n"); } else { Print("Error: tcp_connect \n"); } } else { Print("Error: tcp_bind\n"); } } else { Print("Error: tcp_new faild\n"); }
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