On Tue, 29 Nov 2011, wallynd1 wrote:
> 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?)
does it work with the standard 2.4 kernel?
if so, then the hardware is ok, and maybe you should ask yourslef why
you are using a 2.6 kernel?
> --- 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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