Hi,

The way I normally do this is to specify the curser location. On a
2*16, the top line starts at 0x80 and the second line starts at 0xC0
so if you want to write at position 8 send an instuction 0xC8

Trust this helps,

Dave


----------------------------Snip---------------------------

> I am new to using LCD's.  I am currently interfacing, via 4 line interface,
> a 16f84a and LCD using the Hitachi 44780 controller, 2x16 configuration.
>
> I have most of the code working for display except one part.  That part will
> be the question to follow.
>
> The display will look like the following:
>
> Line one text is static
> Line two Prompt: _ _ _
>
> Where _ _ _ is variable numeric information, 3 positions.
>
> My code displays the line one static information and the line two prompt,
> positioning the cursor ready for the variable information.  Once I display
> the 3 char vari. Info., I am having a problem getting it back the four
> spaces to overwrite those characters with new information.
>
> I have tried to shift the cursor back three, that leaves the first character
> of previous info displaying.  Went back four then forward one, but have some
> glitch making that work.
>
> Any suggestions?  I probably missed, or misunderstood a command available
> with the controller, but not sure where or what.
>

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