Can anyone help me figure out why my LCD Header Pin is always 3.3 volts? (this
is my first post and im not quite sure how things work round these parts?)
Help!
--- In "wallynd1" <> wrote:
>
> Hello,
>
> Im trying to interface my ts7260 with a lumex S02402 (HD44780) LCD panel.
> Unfortunately, after boot LCD Pin 14 (EGPIO[7] on the EP9302) is always ON
> and i cant seem to be able to turn it Off...
>
> Notes:
> 1. Kernel 2.6.21 (Custom compile)
> 2. I am able to turn the LCD header power on/off by using the Power
> Management register.
> 3. I am able to turn on/off all other pins on the LCD header by mapping
> /dev/mem and using the Port A DDR and Data registers.
> 4. Some register values
> DeviceCnf
> $ sudo ./peekpoke 32 0x80930080
> 0x69160D00
> Power Management
> $ sudo ./peekpoke 32 0x12000000
> 0xB0B0B0B
> SysCfg
> $ sudo ./peekpoke 32 0x8093009C
> 0x7400007F
>
> Help!
>
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