PROCESSOR-SDK-AM335X: NDK ping issue

robert bond

Part Number: PROCESSOR-SDK-AM335X
Other Parts Discussed in Thread: TLK110

Hi!

I have ported the BBBlack NDK example to and new board using TLK110. If I continually ping the board all is well, if I stop pinging for several mins, it either takes a few ping to come back or does not come back at all. The all happen after opening a TCPIP socket. I did a test and if I keep pinging the board while the TCPIP is connect - no delay and no drop outs. Note: I was original using LWIP with not issues like this. In addition, I saw this behavior on the Beaglebone Black board too.

Is there some sleep mode or task shutdown when the socket is idle?

complier GNU V7.2.1

NDK 3.60.13

Bios 6.75.2

PDK 1.0.15

Rob

over 6 years ago

0 lding over 6 years ago

TI__Guru* 95265 points

Rob,

Sorry, I am not sure what the TLK110 board is. For the BBB, we test it with AM335x general purpose EVM, I didn't see such issue. "Is there some sleep mode or task shutdown when the socket is idle?", no.

Regards, Eric

0 robert bond over 6 years ago in reply to lding

Expert 1085 points

Hi Eric, TLK110 is TI phy chip. ok, there must be some configuration of the stack that is cause this. I did some test last night - echo data from a host computer to the board and after about < 1hr 39K packets the board stops responding. The board is still functional except for the stack. Could there be a buffer or something that is not being free up and it hitting a internal limit?

Any help would be great?

Rob

0 robert bond over 6 years ago in reply to robert bond

Expert 1085 points

Eric,

Snapshot of the wireshark log. Note the stack dies at the point where it sends an ARP msg out, host responds and the host send the new package out (142ms later). Why would the board send out an arp request when there is no comm issue?

Rob

0 robert bond over 6 years ago in reply to robert bond

Expert 1085 points

Also noticed that the connection on the board goes to close after some period of time.

0 lding over 6 years ago in reply to robert bond

TI__Guru* 95265 points

Hi,

This thread was here for a long time without activity, I recalled you opened another one with Wireshark capture properly loaded. I am closing this one.

Regards, Eric

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PROCESSOR-SDK-AM335X: NDK ping issue