Monday, January 28, 2008

[oopic] Re: NC2004A LCD Screen with Modtronix LCD2S daughter board

--- In oopic@yahoogroups.com, "jasuk1970" <mail@...> wrote:
>
> Thanks for pointing out the obvious :)
>
> I looked at the I2C write example and it said 0x28 switches
backlight
> off (Figure 11), And it's actually 0x20!
>
> Wehoo it's working :)
>
> Well sort of, I think it's my programming skills lacking now :)
>
> Dim screen As oI2C
> Dim text As New oBuffer(20)
> Dim lp As Byte
>
> Sub Main()
> screen.Node = 0x28 ' 0x50 divided by 2
> screen.Mode = cv7Bit
> screen = 0x20 ' Backlight On
> Call CLS()
> text.VString="Hello World! "
> DisplayText()
>
> End Sub
>
> Sub DisplayText()
> screen.Mode = cv7Bit
> screen = 0x80 ' Send string
> For lp = 0 To 19
> text.Location = lp
> screen = text.Value
> Next lp
> End Sub
>
> Sub CLS()
> screen.Mode = cv7Bit
> screen = 0x8c
> End Sub
>
> Sub BackLightOff()
> screen.Mode = cv7Bit
> screen = 0x28
> End Sub
>
> The screen clears but I cannot get any text to appear.
>
> I think it is I don't understand the IC2 stuff just yet.
>
> Thanks for any help.
>
> Cheers,
>
> Jas
>

Setting the mode is only required once.
Why not try simple text without parsing?
Parsing is unlikely to work in any event because you are not sending
a string. It will, at best, apply to the first character.

I don't see a .string property for the oI2C object in the V6
documentaton. It DID exist in V5.

So, we could write things like:
screen.string = "Hello World!"

Unfortunately, V6 won't accept it!

Richard



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