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liddDisplay.c in LCDK C6748

Hello !!

I would like to know if LIDD example from startweare can work into LCDK C6748. I complied the program without no error but nothing happen in the LCD i didn't get the messag in the LCD. The example is given in :

C:\Program Files\Texas Instruments\pdk_C6748_2_0_0_0\C6748_StarterWare_1_20_03_03\examples\evmC6748\lidd

I use LCD connected to the boeard by vga connector.

Think you !!

  • Hi Anouini,

    Did you referred the LIDD (character LCD display) and RASTER  mode in LCD interface in TRM ?

    If you are using the LCDK board then you can't configure the LCD interface in LIDD mode since LCD interface has been connected to VGA port ie RASTER configuration.

    You can try raster examples on LCDK board to display images through VGA port.

    C6748_StarterWare_1_20_04_01/examples/lcdkC6748/raster/


    Could you please elaborate your requirement.

  • The raster example work. But i don't see how to use the lidd example with LCDK. Did you have any ideas ?

    I mixed the to program but it s noyt work

    Think you !!

  • Hi,

    Do you have character display in your LCDK board ?

  • I don't see what do you mean.

    think you ::

  • Hi,

    LIDD mode examples only for charter LCD display thats why we don't have LIDD examples for LCDK board.

    Note:

    LCDK board doesn't have charter LCD display.

    http://www.logicpd.com/products/system-on-modules/zoom-omap-l138-evm/

  • Hello !!

    I think the solution is to use the example // usb_host_kb.c  in startweare that :

    Exampe description :

    //! \addtogroup example_list
    //! <h1>USB HID Keyboard Host (usb_host_keyboard)</h1>
    //!
    //! This example application demonstrates how to support a USB keyboard
    //! attached to the evaluation kit board.  The display will show if a keyboard
    //! is currently connected and the current state of the Caps Lock key on the
    //! keyboard that is connected on the bottom status area of the screen.
    //! Pressing any keys on the keyboard will cause them to be printed on the
    //! screen and to be sent out the UART at 115200 baud with no parity, 8 bits
    //! and 1 stop bit.  Any keyboard that supports the USB HID bios protocol
    //! should work with this demo application.
    //

    The example is given in ans shoud work with LCDK C6748 :

    C:\Program Files\Texas Instruments\pdk_C6748_2_0_0_0\C6748_StarterWare_1_20_03_03\examples\lcdkC6748\usb_host_kb

    It seem that  the libraries are not being successfully linked i have this in the linker:

    In the screen i have what is expected but the keyboard is not detected

    When i plug the kebyboard into the LCDK, i have no power on keyboard so it is normal that the keyboard is not detected. i don't know whey

    I can write on the screen but i can't use the keyboard

    Think you very much

  • Hi,

    We have provided enough explanation on LIDD mode and we have already address this request several times.

    Again, you are looping in new issue on USB host keyboard in the same thread and i also see, you have created one other thread for this one. Please don't create duplicate threads and kindly understand our concerns in addressing your requests.

    We will address your USB host keyboard issue in the below thread and kindly follow it up on the same:

    http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/115/p/358354/1257934.aspx#1257934

    Thanks & regards,

    Sivaraj K

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