SPI initialization NHD-3.5-320240MF-ASXN

SMK

• September 23, 2020 10:07

Hello,

We are doing a project with TFT LCD "NHD-3.5-320240MF-ASXN". The LCD is connected to a MCU "BF706 evaluation board", directly through SPI_CLk, SPI_MOSI and SPI_CS. The MCU supports, SPI mode and has PPI interface for RGB mode.
As I understand, there is no need to initialize the NV3035GTV controller in SPI mode for the LCD, am I correct?.
But I have to send commands and data's from MCU SPI to the LCD controller. Is there any example code?

Thank you.

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• 

  Ted M.

  NHD Staff

  • September 28, 2020 10:07

  Unfortunately the SPI bus pins 10 and 11 of this display are not for display data. The image data interface is 24-bit RGB only.
  
  The display’s 3-wire SPI interface is only used to set Control Registers for optimal functionality of the driver IC and TFT panel during manufacturing of the display.
  These control registers are not intended for use during normal operation of the display.
  Changing these register values may result in undesired visual artifacts and improper functionality of the display.
  
  Best Regards,

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