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.

Thanks in advance for any assistance.

Mark Cherry, WT6P
Sacramento, CA

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