PicoCOMA5 driving more than one LCD pin with one display output

      PicoCOMA5 driving more than one LCD pin with one display output

      Hi,

      I'd want to use specific TFT display which has 8b input per chanel. I don't mind not using the entire color depth, but I still want to use full dynamic range.
      In order to do that, we would have to use some LCD output pins from PicoCOMA5 to drive two input pins of the LCD. But I wasn't able to find any detailed list of electric capabilities of the LCD driver,
      so I'm not sure if those outputs need some boost (f.e. using standard bus drivers) or if we can use them as they are.

      Other solution is of course to connect LSB of the LCD interface to the GND or VCC. But that will have effect on the dynamic range.
      Hello,

      this should be no problem. You can "cascade" e.g.:
      PCA5 -> LCD
      MSB5 -> MSB7
      MSB4 -> MSB6
      MSB3 -> MSB5
      MSB2 -> MSB4
      MSB1 -> MSB3
      MSB0 -> MSB2
      MSB5 -> MSB1
      MSB4 -> MSB0

      FYI: if any troubles you may increase "LCDPortDriveStrength", refer DeviceDriverDoc.
      F&S Elektronik Systeme GmbH
      As this is an international forum, please try to post in English.
      Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.