NDK problem when connection failed

Yossi Regev

Hello

I work with TMS320C6657 EVM, with CCS5.4, SYS/BIOS 6.35 and NDK 2.22.2.16.

I have networking problem.

After the successful initialization of a network module (using function NC_NetStart), I get ping from the EVM, but I cannot detect the network disconnection, that means, that I disconnect the network cable from the computer, but nothing happens (and the ping is not renewable after connect the cable).

What function do i have to use to detect the disconnection, or can you please supply a code example, that indicates about network disconnection and renews the connection.

Best regards

Yossi Regev

over 12 years ago

0 judahvang over 12 years ago

TI__Mastermind 32475 points

Yossi,

Did you try running the NDK client example it should be included with the MCSDK? Do you see the problem with the example? Also, how long is the cable unplugged for and when do you see it in Wireshark?

Judah

0 Yossi Regev over 12 years ago in reply to judahvang

Prodigy 220 points

Hi!

I tried to run the NDK client example, it seem to be the same problem as before. So the scenario is as followed

1) The client example do run

2) Wait for pings, succesfully get it!

3) Disconnect network cable from the computer for 40 seconds, i see the pings disapeared

4) Reconnect network cable back, wait for 2 minutes for getting pings back - UNSUCCESSFUL!!!!!!!! Pings didn't come back

0 lding over 12 years ago in reply to Yossi Regev

TI__Guru* 95265 points

I can see the same issue here with 6657 EVM. I found a solution at http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/t/225488.aspx?pi267198=2

You can toggle bit 5 (GMII_EN Transmit Pacing Enable) of MACCONTROL (0x02C0 8160), it worked for me.

Regards, Eric

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NDK problem when connection failed