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    doesn't work if power cycled with touch panel pressed

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    PanelDue
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    • felekundefined
      felek
      last edited by Phaedrux

      Hi!

      I have a issue with PanelDue. I'm using 3.2 firmware version but I suspect that older firmwares also have the same issue.

      Sometimes after reset touchscreen doesn't work at all. I tried to reset LCD plenty of time but it still happen(reset button, not power). I assumed that PanelDue is broken but I tried to reproduce it on second LCD and this issue still exist.
      Only solution to make it work is power reset.

      Then I released that the printed case is touching a touchscreen all the time. So if something is touching the screen and you reset the screen - touchscreen won't respond.

      I prepared instructions and movie how to reproduce it
      (https://youtu.be/uh4lXjrA4ks)

      • put you finger or two on the touchscreen (all the time)
      • in this same time click reset button
      • after reset touchscreen won't respond at all

      I've started diggind what is going on. It looks that ATSAM microcontroller works fine, but something is wrong with SSD1963. I tried to find schematic, but I found only old version when main microcontroller and display were seperate.

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