Re: [lcd4linux] Four Disokays (HD44780)

[Michael R. <re...@eu...>]

Hi Magnus,

> I think the particular display is controlled by pin number 6,  all other connection  are identical for each display
This is correct. Pin 6 (ENABLE) controls to which display the actual
data ist sent

> In the moment I see the following configuration for pin number 6:
> 
> Display 01 : parallel port  pin 01 = STROBE
> Display 02:  parallel port  pin 13 = SELECTED          (?)
This will not work, because SELECT is an INPUT pin and you need an
OUTPUT signal...

> Display 03:  parallel port  pin 17 = SELECT INPUT  (?)
> Display 04:  parallel port  pin ?? = 

There are four control pins available: STROBE, AUTOFD, INIT and
SELECTIN. Which pin you use for which display makes no difference, you
just have to specify the correct wiring.

There's a good documentation for the different pins at the lcd4linux
wiki, on the HD44780 display page.


bye, Michael

PS If you finish your "monster display", could you please provide some
photos for the wiki?


-- 
Michael Reinelt <re...@eu...>
http://home.pages.at/reinelt
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