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Graphical LCD interfacing with AM1808

kapil kvns
Prodigy 10 points
Other Parts Discussed in Thread: AM1808

Hi,

    I had some doubts about interfacing graphical LCD with AM1808 processor

1.With reference to AM1808 evaluation board schematic, can DVDD3318_A be connected to +3.3v

2. If +3.3v is is supplied to DVDD3318_A then can we give directly +3.3v to graphical LCD without transceiver circuit

3. From evaluation schematic board schematic, in bit mapped LCD controller contains these 3 pins (M_LCD_BACKLIGHT_PWR, M_LCD_PANEL_PWR, M_LCD_PWM0) 

Does these 3 pins directly connected to GPIO pins of AM1808 Processor

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Thanks&regards,

k.v.n.s.kapil

  • 0
    TI__Genius 14405 points

    Hello Kapil,

    Are you trying to modify the board? 

    Please share what you are trying to achieve.

    Regarding your questions, here are my thoughts:

    1. yes you can connect that to 3.3v. I think you can program the PMIC.

    2. which transceiver are talking about? U26 on the baseboard? You don't need a level shifter if your i/o are both 3.3v.

    3. They do seem to be connected to GPIO pins of AM1808.