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Original question:

UDP Communication with lwIP Library

RM57L843: UDP Exercise on RM57

Chetan Chavan
Intellectual 265 points
Part Number: RM57L843

Hi Rohit,

I have followed the exact instructions mentioned in the following link (the same one which you used as starting point):

https://e2e.ti.com/support/archive/launchyourdesign/m/boosterpackcontest/666058

However, at the step where we add the LwIP as a folder, when I am clicking on "finish" after adding lwIP_INSTALL_ROOT as the variable, I can directly see a folder named "lwIP_INSTALL_ROOT" in my CCS workspace and not "lwip1.4.1" as shown in the webpage above.

I dont understand what is going wrong here.

Please help me out.

Regards,

Chetan.

  • +1
    TI__Guru**** 196306 points

    lwIP_INSTALL_ROOT is defined as the path variable pointing to lwip1.4.1 folder.

    You can link the lwip1.4.1 folder without using the path variable:

    Right click on the CCS project listed in Project Explorer, select New, then folder, a new window will pop up, then check "Advance", then select the link folder 

  • 0 in reply to QJ Wang
    Intellectual 265 points

    Hi Wang!

    After doing what you said, yes, the problem has been solved. However, whenever I copy this project and open in another computer, all the folder/file structure under lwip1.4.1 does not open (does not show the tree of files and folders under lwip1.4.1) but then it compiles without errors.

    How do I solve this problem?

    When I was integrating lwip by following the steps mentioned in the above webpage, I kept the lwip in the following path :

    C:./ti/hercules/....

    Does that mean that the lwip path variable that I added will only opne if in the changed PC, the lwip stack exixts in the same path?

    Regards,

    Chetan.