This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • Resolved

CAN-controlled LCD

I'm looking for a CAN-controlled LCD for one of my project. Does any body know if this kind of LCD is available in the market? if it's not, I need to use a MCU to convert CAN message to RS232 or whatever is needed for the LCD. any suggestion?

Thanks,

--Kash

--Kash

 

  • Hello Kash,

     First, apologies for the long delay in replying.  As you know, TI does not have LCDs, and since you are asking about one with a CAN interface, I am assuming your design already has a uC or Processor with a CAN interface, is that correct?

    Our TM4C-series of processors have 2 CAN interfaces, for example: www.ti.com/product/TM4C1290NCZAD .  There are many reference designs, some of them using LCDs for display.  Scroll down the page to the Related Equipment section; in the list, there is an entire section of Digital Signage:  www.ti.com/solution/digital_signage .  What I don't know is whether any of them use CAN for the interface to the LCD, so you may have to search through several of these designs to determine the LCD interface.  I will also do more inquiry here on this side to see if something is readily available.

    Regards,

    ~Leonard

  • p.s. there is also an E2E thread that discusses LCDs: https://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/581119/2133211 . Perhaps look through the WAVESHARE link referenced in this thread.

  • In reply to LeonardEllis:

    I searched on DigiKey. They have 1,736 LCD displays listed. None list having a CAN interface. They have SPI, I2C, UART, parallel, HDMI, VGA, USB and a few other. I suspect that you will need to pick a display that suits your purpose and use a microcontroller with a CAN interface and an interface appropriate for your display that translates the CAN messages to what the display needs.

    Best Regards,
    Bob Crosby

  • In reply to LeonardEllis:

    Leonard,
    Thanks for your response. So far, I have not found any LCD with CAN interface. I guess I need to pick a suitable LCD and make my own CAN enabled LCD.
    Do you know if TM4C-series are able to get programmed through Matlab/Simulink?
    Is there any TM4C experimental board that I can purchase and test my design?

    Thanks,
    --Kash

    --Kash

     

  • In reply to Bob Crosby:

    Bob,
    You're right, I haven't found anything so far. I plan to pick a suitable LCD and make my own CAN enabled one.

    Regards,
    --Kash

    --Kash

     

  • In reply to Khashayar olia:

    Hello Kash,

    What type of LCD screen are you planning for?

    Regards,

    Amit Ashara

  • In reply to Khashayar olia:

    Hi Kash,

    The TM4C series has CAN and the interfaces needed to connect to most LCD displays. You did not mention the size or type of LCD display that you want to control. The lower end TM4C device family, the TM4C123x devices have a low end development board EK-TM4C123GXL Launchpad. It has a stake pin header that is compatible with a Kentec QVGA Booster Pack. You would need to wire up a CAN driver chip. There are some good sample programs available in the TivaWare driver library for this display.

    Another option is the DK-TM4C123G development kit. It is more expensive, but already has the CAN driver and a 96 x 64 Color OLED Display on board.

    Best Regards,
    Bob Crosby

  • In reply to Khashayar olia:

    Hi Kash,

    MathWorks offers an Embedded Coder target for Energia which supports MSP430G2 and Tiva TM4C123G.

    http://www.mathworks.com/matlabcentral/fileexchange/54929-embedded-coder-target-for-energia

    -Brian

    Brian McKay  |  Technical Marketing  |  www.mathworks.com

  • In reply to Brian McKay:

    Thanks Brian, it sounds like I would buy EK-TM4C123GXL and play with it.


    --Kash

     

  • In reply to Bob Crosby:

    Bob,
    Your post was very helpful. I'm gonna buy a EK-TM4C123GXL along with Kentec QVGA Booster Pack to play with.
    You mentioned "I would need to wire up a CAN driver chip", does this mean the EK-TM4C123GXL doesn't come with CAN transceivers?

    --Kash

     

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.