NHD-C12864A1Z-FS(RGB)-FBW-HT1 Stuck Pixels

Darby68

• September 10, 2018 23:12

Hi,

I am using the NHD-C12864A1Z-FS(RGB)-FBW-HT1 in multiple projects. I have it working good with
with the #include "ST7565.h" library from Adafruit.

My problem is every time I compile my code there are what appears to be "stuck" pixels
just right outside the viewing area. I am sending

glcd.clear();
  glcd.drawstring(0, 4, "LINE 1"); // LINE 1
  glcd.drawstring(0, 5, "LINE 2"); // LINE 2
  glcd.display();

As you can see from my attached pic, the pixels are to the left of the X axis when set to "0".

It is happening on multiple screens and multiple board revs. Any help would be appreciated.

Thanks

mike

0

• 

  Ted M.

  NHD Staff

  • March 27, 2020 09:00

  Please confirm the initialization code for the NHD-C12864A1Z-FS(RGB)-FBW-HT1 is correct as per our datasheet.
  
  Also, here is a link to some example programs using the ST7565.h library that may be useful.  https://www.pjrc.com/teensy/td_libs_ST7565.html

  Sub Command
  Reset P3.7
  Reset P3.4
  For Writecount = 1 To 8
   Rotate A , Left , 1
   Reset P3.1
   P1 = A
   Set P3.1
  Next Writecount
  Set P3.7
  End Sub
  ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
  Sub Write
  Reset P3.7
  Set P3.4
  For Writecount = 1 To 8
   Rotate A , Left , 1
   Reset P3.1
   P1 = A
   Set P3.1
  Next Writecount
  Set P3.7
  End Sub
  ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
  Sub Init
  Waitms 100
  A = &HA0
  Call Command
  A = &HAE
  Call Command
  A = &HC0
  Call Command
  A = &HA2
  Call Command
  A = &H2F
  Call Command
  A = &H26
  Call Command
  A = &H81
  Call Command
  A = &H11
  Call Command
  A = &HAF
  Call Command
  End Sub
  ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
  
  

  Regards,

  0

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