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TMS570 MDK LCD problem

Josen Hong
Prodigy 105 points
Other Parts Discussed in Thread: TMS570LS20216

Hi~

I have a TMS570LS20216 MCU Development kit and I used Confidence Test & Demo Source Code (CCSv4.x) from TI.

When I compile and Flash the program into TMS570MDK kits, the LCD displays always nothing. So, I don't know how to configure the parameters of the LCD to make it work correctly.

Best Regards 

JosenHong

  • 0
    TI__Guru**** 196856 points

    Hi JosenHong,

    The confidence CCS project has LCD configuration and display code. The LCD uses SPI for control, and EMIF for data. Please re-assemble the CPU card to make sure the two boards are tied together completely.

    Regards,

    QJ

  • 0 in reply to QJ Wang
    Prodigy 90 points

    Hi,

    what is the solution to this problem? I too face the same issue with LCD.

    the LEDs are blinking but the GLCD is blank white, displaying nothing.



  • 0 in reply to Dinesh Kumar Mani
    TI__Expert 6985 points

    Hi All,

    I think I figured out what the problem here is.

    It looks like Keil is assembling two different versions of the LCD display:

                        newer LCD                     
    (Ampire 240320LG) 

    older LCD
    (Ampire 240320LD or 240320L8?)

    The two different displays got different controllers and therefore need different code to configure and use them.

    Please find attached to this post an updated "Confidence Test" program (CCS 6.0.1 Project), with an new version of the GLCD.c file which considers the differences between the two LCD displays.

    I successfully tested this on two different MCBTMS570 boards, one with the new 240320LG and one with the older 240320LD display.

    Best Regards,
    Christian

    EDIT: Please note, the upper image shows the partnumber of the touch screen which should not be relevant. The lower one shows the part number of the AMPIRE LCD which is the one we are looking for.

    ConfidenceTestNew.zip
  • 0 in reply to Christian Herget
    Prodigy 90 points

    Hi,

    after loading the confidencetestdemo code you shared, the GLCD works now.

    thanks for the solution

  • 0 in reply to Dinesh Kumar Mani
    Intellectual 530 points
    Hello Mr. Christian,

    I am very new to this TMS570. I have the same problem of with GLCD it shows still white color. Even I tried with the new confidence code you have provided above. And the LCD I am using were none of them you have mentioned it is "A774A-32-P101210-4072" And yes the LEDs are blinking. Could you kindly suggest me a solution ??

    Thanks and regards,
  • 0 in reply to Aniketh Chepuri
    TI__Guru 59540 points
    Aniketh,

    Can you confirm which version of the LCD board you have in your kit? The part number you provided seems to be the part number from the blue board not the gold/amber colored LCD interface board.

    It seems the CCSv6 project had been modified to work with the new version of the LCD board. This may be why it is not working for you.

    Also, since this thread is closed from the prior user, let's move responses to your newer post/thread so it can be tracked separately.
    The new thread is located here:
    e2e.ti.com/.../419130
  • 0 in reply to Chuck Davenport
    Intellectual 530 points
    And the LCD I am using were none of them you have mentioned it is "A774A-32-P101210-4072" And yes the LEDs are blinking. Could you kindly suggest me a solution ??
  • 0 in reply to Christian Herget
    Prodigy 10 points
    Hi,
    I have a TMS570LS20216 MCU Development kit and the versions of the LCD display: newer LCD (Ampire 240320LG) .
    I used Confidence Test & Demo Source Code (CCSv 4.2.3.00004 ) from TI.
    When I turn on the TMS570MDK kits, the LCD displays always white.
    Could you help me with the solution (CCSv 4.2.3.00004 Project) of this problem.
    Best regards
    HA