On 1/31/07, Chris <[EMAIL PROTECTED]> wrote:
Ben Griffith wrote:
> I put together the hobby-boards design and that one does work, but it's
> limited to just the first line of the display. At least that was the
case
> the last time I did an "svn update".
Same here, I altered my construction to the hobbyboards-design, I have a
2x24characters-Display, and only the first line is writable...
It's because the display-size is undefined, the hd44780 supports up to
40 characters per line
(http://home.iae.nl/users/pouweha/lcd/lcd0.shtml#visible_ddram) so you
need to fill the string you write with 40 characters and the 41st one is
the second line.
I have a 2x16 character display, and I never thought to try writing an extra
24 characters to get to the second line. It works! Thanks for that hint!
I also have a 4x20 character display that isn't hooked up right now. Will I
be able to do the same to get to the 3rd and 4th lines?
Has anyone been able to use the buttons in the hobby-boards design? I tried
it a few months ago and couldn't get it to work. I can't remember the
problem exactly, but I know that what I tried caused the display to get into
a funky state every time. I think it was when I tried to reset the latch
that the button was assigned to (because resetting one latch resets them
all).
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