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Last Post 21 Oct 2014 08:11 AM by  Adam Ford
OMAPL138 Touch Screen Calibration
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Narayan Viswanath
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Posts:6


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20 Oct 2014 12:04 PM

                   The touch screen on the OMAPL138 SOM is not working  with the factory default Linux OS image, also I have tried with  all the possible configuration related to calibration.

     

    But when i tried with Adeneo Windows CE Image for OMAPL138 SOM, Some part of touch screen is working, 

     

    What could be the Issue ?

     

    Also,please provide a link for latest kernel image and file system with working touch screen driver if any.

     

    Narayan.
    Adam Ford
    Advanced Member
    Advanced Member
    Posts:794


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    21 Oct 2014 08:11 AM

      Is this the same module you were having issues with starting up (or not starting)? If you're still having issues with the module, we should setup an RMA. I have spoken with my supervisor and I am waiting for a response.  If this is a different module, then let's test the video and touch independantly.

    To eliminate the questions of OS's, I would like you to try our test apps.  you will need TI's Code Composer.  We have links to the test files. http://support.logicpd.co...mp;EntryId=762 


    With the instructions listed here: http://support.logicpd.co...id=0&EntryId=776

    It is a collection of tools that directly interact with the hardware. I would specifically target the DSP eXp LCD Touch Test app and it will run on the LogicPD EVM with our LCD.


    To answer your questions about the Linux locations, I would go here for our virtual machine located here: http://support.logicpd.co...id=0&EntryId=988

    and the user guide for the linux PSP is here: http://support.logicpd.co...id=0&EntryId=988

    The default build doesn't really have a touch screen interface.  It's just a terminal, so the test app above is a better choice. 

    adam




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