Hi Jan,
The packages I build are o.k. Because I use the same buildmethode for the
nonRTnet Raw Packages. On the receiver side it's no problem, because I'm use
Matlab xPC Target. xPC is measuring the incoming stream, whatever protocol
that use. Forthermore the sending method works fine if I delete the
receiving command. In the nonRTnet case I receive the data with this
command:
Ret=recvfrom(sockfd, msgRecv, 60, 0, NULL, NULL); And it works. But the same
methode with rt_dev_recvfrom dosen't work.
Ohh.. I'm just reading what Rtcap is. I'll try it. I send a mail when I have
new findings.
Thank you,
Franz
>> Hello,
>>
>> I have an problem and after one week I'm at one's wits' end. I wrote
>> a client that send a raw message to a second system. That works. Now
>> I want to wait for a request form the second system befor I send my
>> message. The second system sends an broadcast, but my program isn't
>> able to receive that. Here is my code:
>Already tried to capture the traffic as it leaves on the one node and
>arrives on the other via RTcap?
>Moreover, it looks like your a building IP frames. Who is supposed to
>process them on receiver side, the RTnet IP layer or another raw socket
>application? If the latter, did you disabled/unloaded the former? If
>the former, check if netmasks are correct.
>Jan
>>
>> RT_TASK *lxrtnettsk;
>> char msg[60];
>> char msgRecv[60];
>>
>> unsigned char src_mac[6] = {0x00, 0x10, 0xa7, 0x23, 0x4f, 0x17};
>> int transmittionTime=1000;//Zeit in Milisekunden int sendLoops = 2;
>>
>> static struct sockaddr_ll newAddr;
>> struct ifreq newIfr;
>>
>> struct ether_header *eth = (struct ether_header *)msg;
>>
>> int ret = 0;
>> int newSocket = 0;
>> int count = 0;
>>
>> sprintf(msg, "Used RTAI, RTnet and UDP!"); system("sh
>> ModuleEinbindenJitterTestXPC.sh");
>> cout << msg << endl;
>>
>> mlockall(MCL_CURRENT|MCL_FUTURE);
>> memset(eth->ether_dhost, 0xFF, ETH_HLEN);
>> eth->ether_type=htons(0x1234); strncpy(newIfr.ifr_name, "rteth0",
>> IFNAMSIZ); newSocket = rt_dev_socket(AF_PACKET, SOCK_RAW, 0);
>>
>>
>> //RAW communication
>> newAddr.sll_family = PF_PACKET;
>> newAddr.sll_protocol = htons(ETH_P_IP); newAddr.sll_ifindex= 2;
>> newAddr.sll_hatype = 1;//ARPHRD_ETHER; newAddr.sll_pkttype =
>> PACKET_OTHERHOST; newAddr.sll_halen = ETH_ALEN;
>>
>> //MAC - Begin
>> newAddr.sll_addr[0] = src_mac[0];
>> newAddr.sll_addr[1] = src_mac[1];
>> newAddr.sll_addr[2] = src_mac[2];
>> newAddr.sll_addr[3] = src_mac[3];
>> newAddr.sll_addr[4] = src_mac[4];
>> newAddr.sll_addr[5] = src_mac[5];
>> //MAC - End
>> newAddr.sll_addr[6] = 0x00; //not used newAddr.sll_addr[7] = 0x00;
>> //not used
>>
>> lxrtnettsk = rt_task_init(4800, 1, 0, 0); if (NULL == lxrtnettsk) {
>> rt_dev_close(newSocket);
>> printf("CANNOT INIT MASTER TASK\n");
>> exit(1);
>> }
>> rt_make_hard_real_time();
>> start_rt_timer(0);
>> ret = rt_dev_bind(newSocket, (struct sockaddr *)&newAddr,
>> sizeof(newAddr)); cout << "newBind: " << ret << endl;
>> while(count<sendLoops)
>> {
>> ret = rt_dev_recv(newSocket, msgRecv, 60, 0);
>> ret = rt_dev_send(newSocket, msg, sizeof(msg), 0);
>> rt_sleep(1000000);
>> count++;
>> }
>>
>> rt_make_soft_real_time();
>> rt_dev_close(newSocket);
>> rt_task_delete(lxrtnettsk);
>>
>> Some Ideas?
>>
>> Regards,
>> Franz
Eingehende eMail ist virenfrei.
Von AVG überprüft - www.avg.de
Version: 9.0.851 / Virendatenbank: 271.1.1/3134 - Ausgabedatum: 09/14/10
08:35:00
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
RTnet-users mailing list
RTnet-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rtnet-users
