• State Not Answered
  • Locked Locked
  • Replies 18 replies
  • Subscribers 21 subscribers
  • Views 3266 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

TCP packet filled with 'U' 1392 bytes long

Aswin C.

Hi,

I'm trying the RL-ARM tcp/ip stack on a arm7 LPC2368 from ETT (futurlec).
I succeed setting up a TCP listen socket with the EasyWeb API.
But when I try to use the TCP stack from RL-ARM 4.12 I don't succeed.

When the controller goes online, it send one packet (ARP notify) and it is filled with 'U' (55) the whole frame/packet, 1392 bytes long.

If I try to setup a TCP connection from my controller to the PC.
several packets as described above appear.

Any idea?

Kind Regards.

Parents
  • 0 in reply to Aswin C.

    In Net_Config.c
    That should be the default 8K ->
    #define MEM_SIZE 2000 ( * 4 = the default setting -> 8000 bytes )

    Sorry, my bad - I now see you mentioned that before.

    "When the controller goes online, it send one packet (ARP notify) and it is filled with 'U' (55) the whole frame/packet, 1392 bytes long."

    I'm confused about that one though. Are you saying that the packet is being sent from your board is completely filled with 'U'? or does it have the ARP message but is padded with 'U'? or something else?

Reply
  • 0 in reply to Aswin C.

    In Net_Config.c
    That should be the default 8K ->
    #define MEM_SIZE 2000 ( * 4 = the default setting -> 8000 bytes )

    Sorry, my bad - I now see you mentioned that before.

    "When the controller goes online, it send one packet (ARP notify) and it is filled with 'U' (55) the whole frame/packet, 1392 bytes long."

    I'm confused about that one though. Are you saying that the packet is being sent from your board is completely filled with 'U'? or does it have the ARP message but is padded with 'U'? or something else?

Children
No data