Linux/LINUXSDK-OMAPL138: Ping works in one direction between LCDK and PC

Aobo Guan

Part Number: LINUXSDK-OMAPL138
Other Parts Discussed in Thread: OMAP-L138

Tool/software: Linux

Hi,

I'm setting environment for embedded linux application development with OMAP-L138 LCDK and got a problem while configuring tftp. My host is running with Windows 7, and building the uboot and kernel through Ubuntu 12.04 on VMware. The "UART-USB" of the LCDK is connect to the PC through USB cable, and the PHY of the LCDK is connected to the PC through a Ethernet-USB adapter.

After loading the uboot to the LCDK, I got something confusing:

The LCDK is given a static IP address 192.168.226.224, and the Ethernet-USB adapter is given as 192.168.226.225.

When we ping the PC from the LCDK through uboot, it works fine:

But when I try to ping the LCDK from the host (the VM is turnned off), it failed:

Regards,

Albert

over 6 years ago

0 Yordan Kovachev over 6 years ago

TI__Guru**** 161600 points

Hi Albert,

Can you try the following:
1. turn off the lcdk.
2. Connect the lcdk debug console to the host PC using teraterm and execute the usb start in u-boot prompt.
3. Try to ping the lcdk from the host pc.

What is the result?

Best Regards,
Yordan

0 Aobo Guan over 6 years ago in reply to Yordan Kovachev

Prodigy 110 points

Hi Yordan,

It seems that the U-boot I'm using doesn't support the usb command.

The "usb" command is not in the list:

This is the version info of the Uboot:

Regards,

Albert

0 Yordan Kovachev over 6 years ago in reply to Aobo Guan

TI__Guru**** 161600 points

Hi Albert,

Sorry for the delay, I was OoO.

I just want to note that this is a very old SDK and I don't think there is support for it. Can you try updating to the latest Processor SDK Linux, this way I can try to reproduce your use case on my side (with the same sdk):
www.ti.com/.../processor-sdk-omapl138

Best Regards,
Yordan

Processors

Processors forum

Linux/LINUXSDK-OMAPL138: Ping works in one direction between LCDK and PC