TMDS273GPEVM: TMDS273GPEVM Ethernet Communication between the ECU and the PC

Hi cl xu,

Sharing the steps below to assign static IP:

The only precautions you need to take are:

1. Not assigning the same IP address to multiple NetIFs for obvious reasons,

2. Making sure you don't call  App_allocateIPAddress() function

static void App_setupNetif()
{
    ip4_addr_t ipaddr[2], netmask[2], gw[2];

    ip4_addr_set_zero(&gw[0]);
    ip4_addr_set_zero(&ipaddr[0]);
    ip4_addr_set_zero(&netmask[0]);
    ip4_addr_set_zero(&gw[1]);
    ip4_addr_set_zero(&ipaddr[1]);
    ip4_addr_set_zero(&netmask[1]);

    gw[0].addr = ((uint32_t)0x0100A8C0UL);   // 192.168.0.1
    ipaddr[0].addr = ((uint32_t)0x0a00A8C0); // 192.168.0.10
    netmask[0].addr = ((uint32_t)0x00FFFFFF);// 255.255.255.0

    gw[1].addr = ((uint32_t)0x0100A8C0UL);   // 192.168.0.1
    ipaddr[1].addr = ((uint32_t)0x0300A8C0); // 192.168.0.3
    netmask[1].addr = ((uint32_t)0x00FFFFFF);// 255.255.255.0

    DebugP_log("Starting lwIP, local interface IP is dhcp-enabled\r\n");
    hlwipIfApp = LwipifEnetApp_getHandle();
    for (uint32_t netifIdx = 0U; netifIdx < ENET_SYSCFG_NETIF_COUNT; netifIdx++)
    {
        /* Open the netif and get it populated*/
        g_pNetif[netifIdx] = LwipifEnetApp_netifOpen(hlwipIfApp, NETIF_INST_ID0 + netifIdx, &ipaddr[netifIdx], &netmask[netifIdx], &gw[netifIdx]);
        netif_set_status_callback(g_pNetif[netifIdx], App_netifStatusChangeCb);
        netif_set_link_callback(g_pNetif[netifIdx], App_netifLinkChangeCb);
        netif_set_up(g_pNetif[NETIF_INST_ID0 + netifIdx]);
    }
    LwipifEnetApp_startSchedule(hlwipIfApp, g_pNetif[ENET_SYSCFG_DEFAULT_NETIF_IDX]);
}

Thanks for your reply.

However, we could not make a UDP communication between the ECU and the PC.

I tested the ping command, and it failed.

Hi Cl Xu,

I see incorrect IP getting assigned in the application (192.168.0.10) instead of your desired IP (192.168.60.10). Just to confirm, did you rebuild the application before testing it again? The Ping failed as the incorrect IP got assigned.

Can you please recheck and let me know if it works, because I tested the same workaround locally and Ping worked.

Thanks and Regards,
Shaunak

I'm sorry.

The value of ipaddr.addr is ((uint32_t)0x0A00A8C0), the comment is incorrect.

Look at the second image above, local interface IP is 192.168.0.10.

Hi CL XU,

I'll re-iterate over it once again with some other IP address just to avoid any confusion,
Let's take it as follows:

IP address: 192.168.1.3      (0x0301A8C0)
Gateway:    192.168.1.1      (0x0101A8C0)
Netmask:    255.255.255.0  (0x00FFFFFF)

After making these changes, please rebuild your application and now load the newly built binary, the IP assigned in the application should now be 192.168.1.3. Test it by running the Ping command from a PC with IP 192.168.1.xx

Regards,
Shaunak

The UDP Client Example could not  communication successfully, in the "examples/networking/lwip/enet_cpsw_udpclient" folder.

The TCP Client Example is OK, in the "examples/networking/lwip/enet_cpsw_tcpclient" folder.

Please test the “UDP Client Example”, and let me know if it works.

-------------------------------------------------------------------------------

-------------------------------------------------------------------------------

There are two questions,as follows:

(1)、In the TCP Client Example, the "DebugP_log("xxxx")" could not be shown in the concose window.

(2)、The sources in the example project could not be imported locally, while import  the "TCP Client Example".The  icons is shown as the image.

Please let me know how to solve the issues

Thanks for your reply.

We could make a communication between the ECU and the PC

Does anyone know how to configure the PORT？？

Hi CL XU,

If the IP assignment issue has been resolved please close the thread and open a new one for port configuration, the respective expert will be assigned accordingly.

Regards,

Shaunak