NHD-5.0-800480AF-ASXP change HDIR and VDIR level

Answered
Nam Võ

I'm using module NHD-5.0-800480AF-ASXP, and I'm having trouble rotating the LCD screen.

I've researched and found that it's possible to change the HDIR and VDIR pin signals on the ST7262 drive IC.

However, the NHD-5.0-800480AF-ASXP specification doesn't mention this.

I noticed that the circuit board has a component area. I think it's possible to change the HDIR and VDIR levels.

Is there any documentation that can help me identify the correct pins to change, or an equivalent schematic?

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Comments

3 comments

Date Votes
  • Engineering Support
    Community moderator

    Hi Nam,

    You can change change the HDIR and VDIR by placing jumpers on the pads for R16, R17, R18, and R19. See below:

     

    By default, the HDIR and VDIR pins are pulled HIGH and R19 (HDIR) and R17 (VDIR) are jumped with a 0 Ohm resistor. If you wanted it pulled LOW, you would have to remove the jumper on the either R19 or R17 and jump the pads above them with the box as shown in the image.

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  • Nam Võ

    It worked. Thank you so much.

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  • Engineering Support
    Community moderator

    That's good to hear! Let me know if you need more assistance.

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