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Screen goes wonky when calling function snd_Freq

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  • Screen goes wonky when calling function snd_Freq

    Calling snd_Freq makes display go white and then fade to black with a ghost image of last displayed frame. Issue occurs even with nothing wired up but 5V and ground, using either 4d-upa or simpler interface board. Loading an empty project with single call to snd_Freq reproduces the issue.

    Using Gen4-uLCD-70D-A [v2.0, 18/08/08] with pmmc Diablo16-R20.PmmC and driver Gen4-uLCD-70D-A-D180808.4Drv

    Attached image shows initial state which gets progressively darker. I'm concerned the display is getting hosed in a bad way, don't want it to burn out
    Attached Files

  • #2
    Hi,

    Sorry to hear you are having an issue when using the snd_Freq function.

    Could you please ope a support ticket by using the link below.

    https://4dsystems.com.au/support

    Best regards

    Paul

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    • #3
      Hi,

      I carried out some more tests and it looks like there is an issue with the PmmC on your display. I have attached an updated PmmC. Could you please use the PmmC Loader tool to update your display.

      Best regards

      Paul
      Attached Files

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      • #4
        Working as expected now, thank you!

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