Starting up a new project with lwIP and TMS570

Hello Matteo,

Will forward your query to our Ethernet experts.

Best Regards,

Karthik.

Still nothing?

Matteo,

Sorry for the delay. I will ping the Ethernet expert again to get you the desired help.

Hi Matteo,

Please refer the Forum thread in below Link, You can find the latest sample project with FreeRTOS port 0636.LWIP_03_05_01.zip

http://e2e.ti.com/support/microcontrollers/hercules/f/312/p/267408/934744.aspx#934744

Regards
Prathap

Hello Matteo,

If your issue is solved with the above example, then please click verify answer and close the thread.

Sorry but the above example is the same that can be downloaded from HalCoGen_Ethernet_Driver_and_lwIP_Integration_Demonstration" which, btw, is the only available documentation page about.

My issue is not solved.

There is someone who's reached to work wih the ethernet starting from the scrtach with HalCoGen?

Same question!

Hello Matteo/kirill,

Our halcogen expert's will get back to you on this.

Matteo,

The Ethernet with lwIP demo has been updated. The DHCP bug has been fixed in this version. Also, lwIP has been updated to the latest stable version. (1.4.1)

Please download the demo from here and let us know if it works for you. Also, the Wiki has been updated with detailed instructions on how to set up the same from scratch using HALCoGen. Do check that out as well:

http://processors.wiki.ti.com/index.php/HALCoGen_Ethernet_Driver_and_lwIP_Integration_Demonstration

Regards,

Chaitanya

T&hank you,

I'll have a look.

Meanwhile we've reached the goal of developing a clean startup project to work with ethernet. This work can lead to a new instruction sheet (or white paper) and to a clean startup example of general interest.

Having seen that this argument is wide interests between thje users of the forum we can share it.

Please contact me via pm or email if you're interested.

is this bug fix related to the RM48 HDK boards also??

Aaron,

you can give it a try.  I noticed that you also posted a question on the other forum, but the LwIP in different time zone, you may want to give this a try for now...

Aaron,

Yes, this bug fix is for both RM and TMS variants.

Thanks,

Chaitanya

Thank you, I downloaded the new demo and I was able to send data trough UDP but Im not able to receive anything as the board replies to every message with "Destinatoin Unreachable (Port Unreachable)', I verified this checking with wire shark, does anybody has any suggestions? heres the code I implemented:

///////////////////////GLOBAL VARIABLES///////////////////////
struct ip_addr ip_host,ip_local;
char *pc;



//////////////////////RECEIVE CALLBACK///////////////////////
void udp_echo_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port){
/*yet to develop*/
}



////////////////////////LWIP AND UDP INITIALIZATION//////////////
void EMAC_LwIP_Main (uint8_t * macAddress)
{
    unsigned int     ipAddr,i;
    struct in_addr     devIPAddress;

    struct udp_pcb *send_pcb;
    struct udp_pcb *recv_pcb;
    char msg[]="TEST";
    struct pbuf *p;

    IP4_ADDR(&ip_local,192,168,200,123);
    IP4_ADDR(&ip_host,192,168,200,122);
    //iommUnlock();
    //iommMuxEnableMdio();
    //iommMuxEnableMii();
    //iommLock();
    sciInit();
    send_pcb=udp_new();
    recv_pcb=udp_new();
    /* Enable the interrupt generation in CPSR register */
    IntMasterIRQEnable();
    _enable_FIQ();

    /* Initialze the lwIP library, using DHCP.*/
    ipAddr = lwIPInit(0, macAddress, inet_addr("123.200.168.192"), inet_addr("0.255.255.255"), inet_addr("1.200.168.192"), IPADDR_USE_STATIC);
    sciDisplayText(scilinREG, txtCRLF, sizeof(txtCRLF));
    /* Convert IP Address to string */
        devIPAddress.s_addr = ipAddr;
        txtIPAddrItoA = (uint8_t *)inet_ntoa(devIPAddress);
            sciDisplayText(scilinREG, txtIPAddrTxt, sizeof(txtIPAddrTxt));
            sciDisplayText(scilinREG, txtIPAddrItoA, 16);
            sciDisplayText(scilinREG, txtCRLF, sizeof(txtCRLF));
            udp_bind(recv_pcb, &ip_host, 7);
            udp_recv(recv_pcb, udp_echo_recv, NULL);
            for (;;)
            {


                    //Allocate packet buffer
                    p= pbuf_alloc(PBUF_TRANSPORT,sizeof(msg),PBUF_RAM);
                    memcpy (p->payload, msg, sizeof(msg));
                    udp_sendto(send_pcb, p, &ip_host, 1234);
                    pbuf_free(p); //De-allocate packet buffer
                    for (i=0;i<=30000000;)
                    {
                        i++;
                    }

            }
}

Hi,

I have the same problem as matteo. I'm trying on TMDX570LS31CNCD board. I downloaded last version from "http://processors.wiki.ti.com/index.php/HALCoGen_Ethernet_Driver_and_lwIP_Integration_Demonstration#Configuring_EMAC_and_MDIO_using_HALCoGen_GUI"

but board can get Ip address. what may be the problem ? Thanks in advance

Sorry, let me correct my question : Board can not get IP address.

Ali,

Is there a DHCP server running, which assigns the IP address? Also, does it display an error message saying "unable to initialize hardware". In some cases, the loop delay in acquiring the address might be too long, and the there may be no change in message on the terminal for a couple of seconds.

Please post more information (screenshots, etc.) regarding the issue you have.

Thanks and Regards,

Chaitanya

Chaitanya,

I'm using TP-LINK TL-WR720N router. My PC can get IP. Yes, "hardware initializing error". I sends a screenshot. Please let me know if you need more material for diagnostic purpose. CCS version is 5.5, HalCoGen  version is 03.03.00 .My Best Regards and Thanks for your help. .

sorry HalCoGen version is 03.06.00

Ali,

Such an error is possible when the delay for obtaining the IP address isn't enough. 

Could you try out the following: In lwiplib.c (lwip-1.4.1/ports/hdk/), in the lwIPInit() function, under the #if LWIP_DHCP part, prefix the delay variable with volatile, such that it is now volatile unsigned int delay; 

It is possible that if compiler optimization is turned on, the while loop for delay is skipped. Also, if this doesn't work, try the same thing with a higher value of delay. (retain the volatile keyword).

Let me know if this works.

Regards,

Chaitanya

Chaitanya,

Problem persists even when your suggested changes are applied to lwiplib.c (lwip-1.4.1/ports/hdk/). But I could run web server by downloading previous version of example from http://processors.wiki.ti.com/index.php/TMS570LS31x_CNCD#Control_Card_Schematic with lwip-1.3.2 . In other words old version works perfectly. Now I am trying to compare these versions.

Best Regards

Ali Riza

Ali,

It appears that for the RM48 control cards, RMII is required for communication, instead of MII. Perhaps you could change that in HALCoGen and then try, even though yours is a TMS control card. Also, it appears that people have had ethernet issues with these devices before. Refer this thread for further details : http://e2e.ti.com/support/microcontrollers/hercules/f/312/t/281723.aspx

I do not have a  CNCD device with me right now to test, so let me know if this works. I'll try finding out more information as well.

Thanks and Regards,

Chaitanya

Chaitanya

Sorry for delay. I changed MII to RMII in HalCogen. Same problem with lwip 1.4.1 on CNCD device.

Thanks